IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1964 ****** 5.7 11.0 14.1 22.2 27.7 29.4 28.7 25.5 19.0 8.1 1.6 ****** 1965 0.4 3.2 10.1 ****** 20.1 23.6 27.6 27.4 23.1 ****** ****** 6.1 ****** 1966 3.1 ****** ****** ****** 20.6 ****** ****** ****** ****** ****** ****** ****** ****** 1967 ****** ****** ****** ****** ****** ****** ****** ****** ****** 16.2 12.3 6.4 ****** 1968 5.2 4.8 11.3 15.2 ****** ****** ****** 27.6 20.6 15.6 10.4 ****** ****** 1969 -2.3 5.4 11.0 14.4 21.0 24.4 ****** 24.7 21.3 15.8 8.9 4.8 ****** 1970 4.0 7.9 10.7 16.5 20.9 24.3 26.5 27.2 22.0 16.1 13.1 6.0 23.2 1971 3.5 4.6 ****** ****** ****** ****** ****** ****** 22.4 15.7 10.6 5.8 ****** 1972 -0.6 -1.4 5.7 14.3 17.1 25.3 30.0 24.8 24.1 24.1 8.9 1.3 31.4 1973 0.3 5.4 9.3 14.5 21.0 25.6 28.5 27.0 22.3 17.9 8.5 3.3 28.2 1974 0.2 1.4 10.1 13.8 22.1 27.3 28.0 26.5 23.0 15.8 12.1 2.7 27.8 1975 2.9 4.4 9.5 16.8 21.1 24.9 30.6 25.9 21.3 15.0 7.9 2.7 27.9 1976 4.6 3.2 ****** ****** 20.5 25.9 29.7 29.0 24.9 17.5 9.8 5.6 ****** 1977 -1.1 7.0 14.0 16.7 21.6 28.0 30.0 29.3 24.9 16.7 11.2 6.3 31.1 1978 4.6 7.4 11.6 16.9 21.8 25.2 28.3 27.9 25.5 19.1 7.8 7.7 23.7 1979 4.9 8.0 9.9 18.0 20.1 24.9 30.5 26.8 25.2 19.7 11.9 5.8 25.6 1980 2.2 3.8 9.8 18.0 22.1 26.5 29.5 28.3 24.3 17.9 12.2 7.4 27.3 1981 5.2 7.1 11.8 15.8 20.5 25.6 28.7 28.2 24.4 17.3 13.1 8.9 23.5 1982 4.8 3.3 8.8 19.7 22.6 26.4 29.6 27.6 24.2 15.7 8.6 2.4 27.2 1983 -0.3 4.8 8.7 15.4 21.8 27.3 30.3 30.0 24.8 18.1 12.8 6.4 30.6 1984 5.5 3.7 12.1 17.4 18.7 26.9 30.1 30.0 25.0 17.1 11.7 1.5 28.6 1985 3.8 6.8 9.0 17.7 23.0 28.8 30.2 27.4 25.9 18.0 13.0 7.1 26.4 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 7.6 9.1 10.9 15.3 23.6 28.0 29.0 29.1 29.2 16.7 12.7 7.3 21.9 1988 5.2 6.5 11.5 16.5 22.5 28.0 29.6 28.6 24.8 19.7 12.8 7.6 24.4 1989 1.0 1.4 10.6 17.8 21.3 27.2 29.7 28.6 24.1 19.1 ****** 7.4 ****** 1990 2.9 4.7 10.4 16.3 23.0 27.9 30.0 29.2 26.2 18.0 13.6 6.0 27.1 1991 4.4 4.3 9.7 17.3 20.3 26.0 29.0 28.2 24.1 19.7 11.6 2.8 26.2 1992 -2.5 0.7 2.4 11.2 ****** 21.7 28.0 26.0 22.1 17.4 12.3 6.1 ****** 1993 1.7 5.8 8.9 16.6 20.4 25.9 28.4 27.9 25.4 17.1 8.9 6.6 26.7 1994 5.7 6.0 11.8 17.3 ****** ****** 29.5 28.6 24.4 18.2 13.8 ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** 13.5 22.1 26.1 29.0 ****** 25.8 17.9 10.6 7.9 ****** 1997 6.6 5.4 9.3 17.5 22.6 28.1 30.9 29.8 23.9 20.7 11.2 6.7 25.5 1998 3.5 5.6 10.7 17.9 22.0 28.6 30.8 29.3 25.4 18.9 14.3 10.2 27.3 1999 5.4 9.8 10.2 18.0 24.6 29.3 29.7 30.6 24.7 20.4 10.3 7.5 25.2 2000 5.3 6.5 10.0 20.7 25.0 28.1 ****** 29.0 25.6 17.1 9.9 6.3 ****** 2001 5.0 7.4 12.3 ****** 22.9 27.4 29.0 29.3 25.5 19.1 11.7 8.4 ****** 2002 ****** 8.5 12.5 15.5 21.1 26.6 29.3 29.1 26.3 ****** 12.1 4.2 ****** 2003 5.9 7.2 10.3 16.3 20.0 26.2 30.9 28.3 23.4 20.5 10.5 6.1 25.0 MEAN 3.2 5.3 10.2 16.3 21.5 26.5 29.4 28.1 24.3 18.0 11.1 5.7 26.2 SD 2.63 2.44 2.03 1.90 1.56 1.65 1.02 1.42 1.70 1.88 1.82 2.22 1.86 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** -0.1 5.0 6.8 15.0 20.5 20.9 19.8 17.8 12.3 2.5 -4.1 ****** 1965 -4.3 -1.1 4.0 ****** 10.4 13.3 17.2 17.5 13.7 ****** ****** -0.8 ****** 1966 -5.5 ****** 8.2 9.6 12.9 ****** ****** ****** ****** ****** ****** ****** ****** 1967 ****** ****** ****** ****** ****** ****** ****** ****** ****** 8.1 4.2 0.0 ****** 1968 -1.7 -0.8 4.0 7.5 ****** ****** ****** 17.5 13.6 9.7 4.4 ****** ****** 1969 -5.2 2.4 6.7 8.4 12.5 13.6 ****** 14.5 12.9 8.6 3.0 -0.2 ****** 1970 -0.4 1.1 3.8 8.5 11.5 13.8 16.0 17.1 11.9 6.9 5.3 0.7 8.0 1971 -3.4 -1.7 ****** ****** ****** ****** ****** ****** 12.5 5.4 3.4 -0.4 ****** 1972 -4.9 -8.8 -1.9 5.3 8.7 15.9 22.1 16.4 15.5 15.4 2.8 -4.1 6.9 1973 -4.6 -1.2 1.4 6.2 11.4 13.7 15.0 15.0 11.3 8.2 2.7 -2.8 6.4 1974 -4.0 -3.0 4.3 7.3 13.5 18.6 20.1 18.0 14.4 7.0 5.0 -2.5 8.2 1975 -1.7 -0.8 2.6 9.0 13.2 16.2 21.8 15.3 10.0 4.5 0.1 -2.6 7.3 1976 -1.6 -2.0 ****** ****** 13.3 16.9 21.3 20.3 16.3 10.2 3.1 0.7 ****** 1977 -4.7 0.5 6.4 10.4 14.3 19.2 21.1 20.6 16.1 9.8 4.7 1.2 10.0 1978 -1.3 1.5 4.7 9.1 13.3 16.5 19.2 18.6 16.1 11.7 1.8 3.2 9.5 1979 0.1 2.6 4.3 11.3 13.0 16.1 22.1 17.9 16.5 11.9 4.8 1.1 10.1 1980 -2.8 -0.7 3.8 10.9 14.3 17.4 20.4 19.3 15.2 10.0 5.9 1.5 9.6 1981 -0.0 1.3 5.8 9.0 13.0 17.8 20.5 20.1 15.9 10.7 5.7 2.8 10.2 1982 -0.3 -2.3 2.6 12.6 15.1 17.3 21.2 19.2 16.3 9.8 4.3 -2.4 9.5 1983 -4.8 -1.1 2.4 8.6 14.8 18.8 21.3 21.4 16.6 10.0 6.8 1.6 9.7 1984 -0.1 -1.3 5.7 10.6 11.7 18.2 21.9 21.5 16.7 9.6 6.0 -2.6 9.8 1985 -1.2 0.9 3.3 10.6 15.2 20.1 21.3 19.6 17.0 10.5 7.2 2.3 10.6 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 1.0 2.9 5.3 8.0 16.0 19.8 20.9 20.8 20.9 12.0 6.0 1.7 11.3 1988 0.9 1.2 5.0 8.3 13.9 20.1 21.0 20.5 16.1 12.1 6.2 1.7 10.6 1989 -4.1 -4.0 4.9 10.6 13.7 18.4 21.1 20.3 15.0 10.6 ****** 2.2 ****** 1990 -1.3 -0.7 3.9 9.3 14.3 19.0 22.1 20.5 16.6 10.3 6.3 0.2 10.0 1991 0.0 -1.0 4.6 10.5 13.0 17.8 20.9 19.5 15.2 13.7 4.6 -4.1 9.6 1992 -11.1 -8.9 -7.3 0.7 ****** 9.5 17.2 17.8 12.7 8.5 5.5 1.6 ****** 1993 -3.4 0.6 3.3 9.3 12.8 16.9 19.8 19.2 16.7 9.7 3.9 1.5 9.2 1994 0.4 0.1 4.7 8.9 ****** ****** 20.6 19.3 14.5 10.1 7.0 ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** 6.1 15.0 17.2 21.9 ****** 17.6 11.1 4.4 2.2 ****** 1997 0.7 -0.9 4.0 11.4 15.9 21.2 22.8 21.8 15.9 14.1 6.9 2.7 11.4 1998 -0.3 1.0 5.3 11.6 15.3 21.4 24.3 22.1 17.6 11.5 7.4 5.1 11.9 1999 0.4 4.0 4.9 12.2 18.4 22.3 22.3 23.7 16.9 13.2 5.3 2.6 12.2 2000 0.7 0.9 4.5 13.8 18.1 20.4 ****** 21.3 17.2 10.7 4.7 2.3 ****** 2001 -0.0 1.5 6.6 ****** 14.9 18.6 20.9 21.2 17.4 11.9 6.1 3.9 ****** 2002 ****** 2.2 5.6 10.3 13.6 18.8 22.0 20.7 17.6 ****** 6.2 0.3 ****** 2003 0.6 2.3 5.1 10.5 12.5 17.7 22.3 20.1 15.0 12.7 4.5 2.0 10.5 MEAN -2.0 -0.4 4.0 9.2 13.8 17.7 20.7 19.4 15.5 10.4 4.8 0.5 9.5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** 11.5 19.2 21.5 29.4 34.9 37.9 37.6 33.2 25.6 13.7 7.2 ****** 1965 5.0 7.5 16.2 ****** 29.8 33.9 38.0 37.4 32.6 ****** ****** 12.9 ****** 1966 11.7 ****** ****** ****** 28.3 ****** ****** ****** ****** ****** ****** ****** ****** 1967 ****** ****** ****** ****** ****** ****** ****** ****** ****** 24.3 20.4 12.9 ****** 1968 12.1 10.3 18.6 22.8 ****** ****** ****** 37.6 27.6 21.6 16.3 ****** ****** 1969 0.5 8.3 15.2 20.5 29.5 35.1 ****** 34.8 29.8 23.0 14.8 9.7 ****** 1970 8.3 14.7 17.6 24.6 30.4 34.9 36.9 37.3 32.2 25.4 20.9 11.4 24.5 1971 10.4 10.8 ****** ****** ****** ****** ****** ****** 32.3 26.0 17.7 12.0 ****** 1972 3.6 5.9 13.2 23.3 25.6 34.7 37.8 33.1 32.6 32.8 14.9 6.7 22.0 1973 5.2 12.1 17.1 22.7 30.6 37.5 42.0 39.0 33.3 27.7 14.3 9.4 24.2 1974 4.4 5.8 15.8 20.4 30.7 36.1 36.0 35.0 31.5 24.7 19.2 8.0 22.3 1975 7.6 9.6 16.5 24.5 29.0 33.7 39.3 36.4 32.7 25.4 15.8 7.9 23.2 1976 10.7 8.3 12.1 21.2 27.7 34.8 38.2 37.7 33.6 24.9 16.5 10.5 23.0 1977 2.4 13.5 21.6 23.0 28.8 36.8 38.9 37.9 33.7 23.5 17.8 11.4 24.1 1978 10.4 13.3 18.1 24.7 30.2 33.9 37.4 37.2 34.9 26.6 13.7 12.3 24.4 1979 9.8 13.3 15.4 25.1 27.2 33.7 38.9 35.7 33.8 27.5 19.1 10.4 24.2 1980 7.0 8.3 16.3 25.1 29.9 35.6 38.7 37.3 33.3 25.7 18.5 13.3 24.1 1981 10.3 12.8 18.1 22.7 28.0 33.3 36.9 36.3 32.9 24.0 19.8 14.5 24.1 1982 9.9 8.6 14.7 26.8 30.2 35.5 37.9 36.0 32.2 21.7 12.9 7.1 22.8 1983 4.7 10.8 14.6 22.0 29.0 35.7 39.3 38.5 33.0 26.1 19.6 11.0 23.7 1984 10.9 8.6 18.6 24.0 25.8 35.8 38.2 38.5 33.2 24.5 17.1 5.4 23.4 1985 8.9 12.8 14.4 24.7 30.9 37.5 39.1 35.2 34.8 25.4 18.8 11.8 24.5 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 14.3 15.4 16.6 22.5 31.1 36.1 37.0 37.5 37.5 21.4 19.4 12.8 25.1 1988 9.6 11.9 17.9 24.6 31.0 35.8 38.2 36.7 33.4 27.2 19.4 13.4 24.9 1989 6.1 6.8 16.4 25.0 29.0 36.1 38.3 36.9 33.2 27.7 ****** 12.6 ****** 1990 7.1 10.2 17.0 23.3 31.6 36.9 37.9 37.9 35.8 25.6 20.9 11.7 24.7 1991 8.8 9.5 14.8 24.2 27.7 34.2 37.2 36.8 33.1 25.8 18.6 9.5 23.3 1992 6.1 10.3 12.2 21.6 23.9 33.9 38.8 34.3 31.5 26.2 19.0 10.6 22.4 1993 6.8 10.9 14.4 23.9 27.9 34.9 37.0 36.5 34.2 24.4 13.8 11.8 23.1 1994 11.0 12.0 18.8 25.7 ****** ****** 38.3 37.7 34.2 26.4 20.6 ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** 20.9 29.2 34.9 36.2 36.9 34.0 24.8 16.8 13.6 ****** 1997 12.4 11.6 14.7 23.6 29.3 35.1 38.9 37.8 31.9 27.2 15.6 10.7 24.1 1998 7.4 10.2 15.8 24.4 28.7 35.9 37.5 36.4 33.3 26.3 21.3 15.1 24.3 1999 10.6 15.5 15.5 23.8 30.8 36.4 36.8 37.5 32.6 27.5 15.3 12.4 24.5 2000 9.8 12.2 15.6 27.5 32.0 35.6 ****** 36.8 33.9 23.4 14.9 10.3 ****** 2001 10.0 13.3 18.0 ****** 31.0 36.2 37.0 37.4 33.5 26.3 17.4 12.9 ****** 2002 ****** 14.9 19.5 20.6 28.6 34.3 36.6 37.6 35.0 ****** 18.0 8.0 ****** 2003 11.2 12.1 15.5 22.1 27.4 34.6 39.5 36.6 31.7 28.3 16.6 10.2 23.8 MEAN 8.4 11.0 16.4 23.4 29.1 35.3 38.0 36.9 33.1 25.6 17.4 10.9 23.8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** 11.6 14.2 14.7 14.4 14.4 17.0 17.8 15.4 13.3 11.2 11.3 ****** 1965 9.3 8.6 12.2 ****** 19.4 20.6 20.8 19.9 18.9 ****** ****** 13.7 ****** 1966 17.2 ****** ****** ****** 15.4 ****** ****** ****** ****** ****** ****** ****** ****** 1967 ****** ****** ****** ****** ****** ****** ****** ****** ****** 16.2 16.2 12.9 ****** 1968 13.8 11.1 14.6 15.3 ****** ****** ****** 20.1 14.0 11.9 11.9 ****** ****** 1969 5.7 5.9 8.5 12.1 17.0 21.5 ****** 20.3 16.9 14.4 11.8 9.9 ****** 1970 8.7 13.6 13.8 16.1 18.9 21.2 20.9 20.2 20.3 18.5 15.6 10.7 16.5 1971 13.8 12.5 ****** ****** ****** ****** ****** ****** 19.8 20.6 14.3 12.4 ****** 1972 8.5 14.7 15.1 18.0 16.9 18.8 15.7 16.7 17.1 17.4 12.1 10.8 15.1 1973 9.8 13.3 15.7 16.5 19.2 23.8 27.0 24.0 22.1 19.5 11.6 12.2 17.9 1974 8.4 8.8 11.5 13.1 17.2 17.5 15.9 17.0 17.1 17.7 14.2 10.5 14.1 1975 9.3 10.4 13.9 15.5 15.8 17.5 17.5 21.1 22.7 20.9 15.7 10.5 15.9 1976 12.3 10.3 ****** ****** 14.4 17.9 16.9 17.4 17.3 14.7 13.4 9.8 ****** 1977 7.1 13.0 15.2 12.6 14.5 17.6 17.8 17.3 17.6 13.7 13.1 10.2 14.1 1978 11.7 11.7 13.4 15.6 16.9 17.4 18.2 18.6 18.8 14.9 11.9 9.1 14.8 1979 9.7 10.7 11.1 13.8 14.2 17.6 16.8 17.8 17.3 15.6 14.3 9.3 14.0 1980 9.7 9.0 12.5 14.2 15.6 18.2 18.3 18.0 18.0 15.7 12.6 11.8 14.5 1981 10.3 11.5 12.3 13.7 15.0 15.5 16.4 16.2 17.0 13.3 14.1 11.7 13.9 1982 10.2 10.9 12.1 14.2 15.1 18.2 16.7 16.8 15.9 11.9 8.7 9.5 13.3 1983 9.5 11.9 12.2 13.4 14.3 16.9 18.0 17.1 16.4 16.1 12.8 9.4 14.0 1984 11.0 9.9 12.9 13.4 14.1 17.6 16.3 17.0 16.5 14.9 11.1 8.0 13.6 1985 10.1 11.8 11.1 14.1 15.7 17.4 17.8 15.6 17.8 14.9 11.6 9.5 13.9 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 13.3 12.5 11.3 14.5 15.1 16.3 16.1 16.7 16.6 9.4 13.4 11.1 13.9 1988 8.7 10.7 12.9 16.3 17.1 15.7 17.2 16.2 17.3 15.1 13.2 11.7 14.3 1989 10.2 10.8 11.5 14.4 15.3 17.7 17.2 16.6 18.2 17.1 ****** 10.4 ****** 1990 8.4 10.9 13.1 14.0 17.3 17.9 15.8 17.4 19.1 15.3 14.6 11.5 14.6 1991 8.8 10.5 10.2 13.7 14.7 16.4 16.3 17.3 17.9 12.1 14.0 13.6 13.8 1992 17.2 19.2 19.5 20.9 ****** 24.4 21.6 16.5 18.8 17.7 13.5 9.0 ****** 1993 10.2 10.3 11.1 14.7 15.1 18.0 17.2 17.3 17.5 14.7 9.9 10.3 13.9 1994 10.6 11.9 14.1 16.8 ****** ****** 17.7 18.4 19.7 16.3 13.6 ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** 14.8 14.2 17.7 14.3 ****** 16.4 13.7 12.4 11.4 ****** 1997 11.7 12.5 10.7 12.2 13.4 13.9 16.1 16.0 16.0 13.1 8.7 8.0 12.7 1998 7.7 9.2 10.5 12.8 13.4 14.5 13.2 14.3 15.7 14.8 13.9 10.0 12.5 1999 10.2 11.5 10.6 11.6 12.4 14.1 14.5 13.8 15.7 14.3 10.0 9.8 12.4 2000 9.1 11.3 11.1 13.7 13.9 15.2 ****** 15.6 16.7 12.7 10.2 8.0 ****** 2001 10.0 11.8 11.4 ****** 16.1 17.6 16.1 16.2 16.1 14.4 11.3 9.0 ****** 2002 ****** 12.7 13.9 10.3 15.0 15.5 14.6 16.9 17.4 ****** 11.8 7.7 ****** 2003 10.6 9.8 10.4 11.6 14.9 16.9 17.2 16.5 16.7 15.5 12.1 8.2 13.4 MEAN 10.4 11.3 12.6 14.3 15.5 17.6 17.3 17.5 17.6 15.2 12.6 10.4 14.4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** 3.30 4.73 4.50 6.88 9.68 11.40 10.79 8.77 6.66 3.62 2.25 ****** 1965 2.36 3.34 3.66 ****** 4.93 6.03 9.35 10.38 8.79 ****** ****** 3.27 ****** 1966 3.83 ****** 5.26 5.97 8.23 ****** ****** ****** ****** ****** ****** ****** ****** 1967 ****** ****** ****** ****** ****** ****** ****** ****** ****** 5.77 4.66 3.29 ****** 1968 2.91 2.97 3.96 5.43 ****** ****** ****** 11.93 9.20 7.44 5.12 ****** ****** 1969 2.17 4.26 5.32 7.02 8.42 9.26 ****** 9.48 8.01 5.95 4.01 3.72 ****** 1970 3.46 3.60 4.23 5.64 7.28 8.49 9.95 10.76 7.60 4.79 4.35 3.72 6.16 1971 2.70 3.16 ****** ****** ****** ****** ****** ****** 6.29 5.08 5.03 4.00 ****** 1972 2.98 2.76 4.15 5.18 7.72 6.56 6.04 9.75 9.96 9.61 4.96 3.23 6.07 1973 2.86 3.74 3.59 5.28 7.31 8.62 10.80 10.17 8.11 5.62 3.98 2.64 6.06 1974 3.04 3.52 5.48 5.39 7.29 9.73 11.18 9.53 7.44 4.23 4.76 3.48 6.26 1975 3.50 4.10 4.55 6.48 8.51 9.60 10.23 9.05 7.47 5.40 4.22 3.75 6.41 1976 3.76 3.27 4.15 6.25 8.82 9.22 11.08 8.39 7.25 6.16 3.89 3.85 6.34 1977 3.03 3.58 4.31 6.66 8.66 9.26 10.37 9.10 8.23 7.22 5.32 4.15 6.66 1978 3.56 4.03 4.68 4.85 7.03 7.83 9.06 8.79 7.18 6.39 3.94 4.77 6.01 1979 4.01 4.60 5.16 6.33 8.45 9.88 9.87 8.54 7.09 6.60 4.03 4.18 6.56 1980 3.87 3.87 4.63 6.09 8.06 9.32 9.37 10.14 7.16 5.89 5.66 3.78 6.49 1981 3.91 4.12 4.37 5.99 7.33 9.47 10.95 10.16 6.92 6.44 4.30 4.32 6.52 1982 3.77 3.55 4.03 5.96 8.63 8.98 9.18 9.13 7.99 7.32 5.23 3.67 6.45 1983 ****** 3.79 4.52 6.32 9.38 9.63 9.16 9.81 8.94 5.34 5.05 5.11 ****** 1984 3.91 3.41 4.12 5.50 6.72 7.20 8.41 8.28 7.63 4.81 5.12 3.59 5.72 1985 3.91 3.44 4.28 5.82 7.05 8.39 9.66 8.57 6.32 5.25 5.60 4.15 6.04 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 3.90 4.53 5.58 5.35 8.90 8.97 10.21 11.37 11.44 6.84 5.16 4.07 7.19 1988 3.91 4.05 5.35 7.49 9.05 11.51 13.42 13.97 8.20 6.83 5.11 3.69 7.72 1989 2.69 2.96 5.63 7.75 8.45 10.26 12.36 11.57 7.48 6.08 ****** 4.48 ****** 1990 3.49 3.87 4.88 7.15 9.31 11.77 14.29 13.03 9.99 6.83 5.84 3.89 7.86 1991 3.98 3.66 5.62 6.92 8.63 10.83 9.07 10.93 8.70 7.49 4.46 4.46 7.06 1992 3.28 3.62 3.92 6.65 9.83 12.20 15.63 14.42 9.83 7.72 6.14 4.30 8.13 1993 3.10 4.17 5.15 8.23 8.42 10.31 13.02 13.26 11.26 7.07 5.22 4.33 7.80 1994 4.05 3.85 5.36 7.52 ****** ****** 14.60 13.06 10.04 8.44 6.76 ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** 8.59 10.16 12.22 11.17 10.05 8.95 6.59 4.48 4.16 ****** 1997 3.63 3.52 4.19 5.40 7.27 9.86 11.81 9.80 7.34 6.29 5.60 4.59 6.61 1998 3.83 3.86 4.98 6.58 7.71 9.34 12.21 11.32 8.69 6.37 5.07 4.98 7.08 1999 3.96 3.77 4.48 5.78 7.31 8.99 11.54 10.57 9.01 6.46 5.38 4.53 6.81 2000 3.51 3.57 3.61 6.73 8.24 9.50 ****** 10.36 10.01 7.23 5.30 4.99 ****** 2001 3.78 3.66 4.80 ****** 8.16 9.73 10.93 11.17 8.71 6.86 4.98 5.23 ****** 2002 ****** 3.83 4.27 6.96 7.70 9.13 11.07 11.82 8.85 ****** 5.59 4.08 ****** 2003 3.93 4.18 4.95 7.08 7.74 9.95 12.43 11.06 8.44 6.78 4.60 4.39 7.13 MEAN 3.48 3.71 4.63 6.32 8.05 9.45 10.94 10.59 8.43 6.46 4.93 4.04 6.75 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** 3.64 5.13 4.27 6.55 11.67 14.08 14.54 11.82 8.53 3.43 3.52 ****** 1965 3.66 3.61 3.58 ****** 5.35 8.30 13.97 15.26 13.89 ****** ****** 5.69 ****** 1966 6.82 ****** 6.38 7.78 11.21 ****** ****** ****** ****** ****** ****** ****** ****** 1967 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1968 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1969 ****** ****** 7.67 7.28 8.13 8.69 ****** 9.08 8.77 6.45 5.41 4.14 ****** 1970 4.29 4.14 4.38 6.33 9.03 8.75 11.59 11.73 8.61 7.66 6.47 4.56 7.30 1971 3.87 3.84 ****** ****** ****** ****** ****** ****** 5.46 4.70 5.74 3.91 ****** 1972 3.74 4.61 6.23 8.04 11.73 9.12 6.88 16.28 15.18 15.95 6.80 4.27 9.07 1973 3.55 5.28 4.44 4.33 4.72 6.17 7.97 8.95 7.52 5.01 4.41 3.22 5.46 1974 3.58 4.07 6.54 4.55 5.83 7.27 8.91 8.67 7.74 4.18 4.62 3.87 5.82 1975 4.12 4.24 4.87 5.93 7.52 6.91 7.81 8.96 7.16 4.98 4.31 4.11 5.91 1976 4.13 3.11 4.83 5.98 7.39 8.26 8.43 7.55 7.04 6.87 4.35 4.21 6.01 1977 3.85 4.14 3.57 6.00 7.85 6.29 8.70 7.91 7.53 7.12 5.51 4.51 6.08 1978 3.88 3.97 3.90 3.72 5.25 6.51 10.90 7.58 6.78 6.68 4.26 4.95 5.70 1979 4.34 4.65 ****** ****** ****** ****** ****** 6.90 5.61 6.37 4.23 4.40 ****** 1980 3.64 4.07 4.11 5.10 6.64 7.70 7.74 8.87 5.64 5.13 5.33 3.33 5.61 1981 3.21 3.13 3.95 5.12 6.03 8.95 9.72 8.85 5.49 5.46 3.08 4.06 5.59 1982 3.40 2.69 4.28 5.33 7.15 6.74 6.75 7.38 5.66 6.45 5.16 3.18 5.35 1983 3.18 2.87 3.90 5.50 7.71 7.15 6.32 8.01 6.69 4.17 4.61 3.85 5.33 1984 3.19 3.37 4.79 5.07 5.61 7.08 8.85 9.71 6.33 3.64 5.06 2.53 5.44 1985 4.10 3.12 4.13 5.36 5.96 6.69 7.70 7.00 5.62 5.31 5.22 3.81 5.33 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 2.16 2.68 4.12 4.26 6.28 6.82 7.56 8.35 8.61 5.74 5.85 4.80 5.60 1988 3.67 3.40 4.14 7.54 6.75 10.15 13.44 10.60 7.67 5.59 4.25 3.97 6.76 1989 3.14 3.59 6.85 7.08 7.29 8.40 9.75 8.73 7.56 7.34 ****** 4.77 ****** 1990 3.36 4.23 5.61 6.90 10.14 12.46 14.45 13.42 11.26 7.70 5.77 4.21 8.29 1991 3.93 3.93 5.83 7.67 8.01 10.74 9.33 9.25 9.25 7.18 5.05 4.53 7.06 1992 3.03 2.62 4.93 6.84 13.96 19.40 24.52 21.89 17.47 9.29 5.40 2.79 11.01 1993 2.87 3.37 5.21 9.40 10.76 12.08 15.18 18.03 15.08 5.73 5.16 3.75 8.88 1994 5.04 4.20 7.53 12.08 ****** ****** 28.23 18.30 16.88 11.60 5.35 ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** 13.33 12.88 16.24 10.13 11.51 10.99 6.97 4.79 4.71 ****** 1997 4.20 6.89 4.30 5.40 7.39 10.08 10.72 9.43 7.50 5.98 5.80 4.98 6.89 1998 4.04 3.87 5.14 6.51 7.98 7.78 10.58 10.60 8.74 6.48 5.57 5.41 6.89 1999 4.26 3.87 4.53 5.41 6.16 8.20 10.44 9.16 8.81 6.42 5.61 4.85 6.48 2000 3.71 3.73 3.75 7.11 7.30 7.61 ****** 10.44 9.06 7.29 5.35 5.55 ****** 2001 4.06 4.06 5.12 ****** 6.91 7.99 9.63 9.61 8.53 6.87 5.25 5.65 ****** 2002 ****** 3.77 4.27 6.97 6.38 6.61 9.22 11.55 8.76 ****** 6.03 3.82 ****** 2003 4.16 4.23 5.18 7.62 7.11 8.14 10.53 10.38 8.23 6.65 4.56 4.58 6.78 MEAN 3.82 3.85 4.95 6.56 7.73 8.91 10.97 10.72 8.95 6.72 5.09 4.25 6.87 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** 3.43 5.02 4.28 7.31 12.74 14.60 13.86 11.72 9.08 3.68 2.28 ****** 1965 1.62 2.47 3.84 ****** 5.75 8.31 12.35 13.07 11.64 ****** ****** 4.43 ****** 1966 5.21 ****** 5.95 6.88 9.84 ****** ****** ****** ****** ****** ****** ****** ****** 1967 ****** ****** ****** ****** ****** ****** ****** ****** ****** 7.28 6.14 3.59 ****** 1968 3.36 3.21 5.05 6.40 ****** ****** ****** 14.03 11.68 7.95 5.65 ****** ****** 1969 2.44 4.71 7.25 7.33 9.22 10.70 ****** 9.73 9.15 6.95 4.57 3.69 ****** 1970 3.67 3.71 4.51 6.13 8.63 9.32 11.81 12.27 8.87 6.26 5.34 3.76 7.03 1971 3.22 3.49 ****** ****** ****** ****** ****** ****** 8.09 5.25 5.81 4.11 ****** 1972 3.46 3.83 5.59 7.32 10.47 9.07 7.99 15.27 14.92 15.83 6.47 3.90 8.68 1973 2.86 4.33 5.01 6.64 8.49 8.39 9.74 11.09 9.56 5.91 4.43 2.63 6.59 1974 3.76 3.85 6.54 5.10 7.03 8.59 10.62 10.25 8.21 7.12 5.17 4.27 6.71 1975 4.23 4.57 5.23 7.04 7.02 7.33 8.91 9.79 7.94 5.72 4.31 4.17 6.35 1976 4.19 3.60 5.00 6.53 7.90 8.73 9.77 9.20 7.19 6.43 4.74 4.45 6.48 1977 3.62 4.59 4.58 6.33 8.48 6.79 8.67 9.68 8.76 8.19 6.14 5.15 6.75 1978 4.14 4.58 4.65 5.20 6.35 7.74 10.35 9.17 8.24 7.48 4.57 5.09 6.46 1979 4.31 5.28 5.10 6.66 8.24 8.27 9.20 9.08 7.19 6.82 4.90 4.70 6.65 1980 3.27 4.22 5.09 5.99 7.85 9.40 9.41 10.20 7.37 6.46 6.21 4.62 6.67 1981 3.98 4.10 5.24 6.35 7.07 9.81 10.79 12.00 7.74 6.62 4.32 4.46 6.87 1982 4.18 3.47 4.42 6.49 8.07 8.43 9.12 10.56 8.32 7.79 5.89 4.06 6.73 1983 3.82 3.63 4.14 6.55 8.26 9.20 9.86 10.02 8.27 5.71 5.52 4.83 6.65 1984 4.26 3.86 4.96 5.54 6.40 7.37 9.09 9.98 7.46 5.33 6.22 3.78 6.19 1985 5.01 3.69 4.24 6.02 7.54 8.65 9.13 9.54 8.38 6.16 6.38 4.58 6.61 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 4.66 4.73 5.32 5.15 8.27 9.01 10.36 9.20 9.23 6.68 6.43 4.59 6.97 1988 4.24 4.17 5.68 8.73 7.97 13.24 15.25 14.57 10.26 7.77 4.71 4.27 8.40 1989 3.57 3.80 7.98 10.18 11.26 13.65 15.93 13.95 12.45 7.98 ****** 5.11 ****** 1990 4.23 4.74 5.81 8.19 11.64 17.87 20.33 18.83 17.33 8.52 6.34 4.53 10.70 1991 4.55 4.28 6.49 9.17 10.75 13.37 14.17 15.16 11.66 8.89 6.75 4.75 9.17 1992 3.82 4.09 5.03 8.34 14.45 20.76 22.78 22.28 17.34 11.25 7.89 4.78 11.90 1993 4.11 5.03 6.34 10.46 11.57 13.71 17.08 19.41 16.37 7.85 6.09 5.21 10.27 1994 5.56 4.53 7.82 11.76 ****** ****** 27.46 19.82 18.09 11.75 5.44 ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** 13.36 ****** ****** ****** ****** 11.50 7.28 5.03 4.73 ****** 1997 4.13 5.00 4.58 5.63 9.69 9.18 10.73 11.51 8.48 6.74 5.95 5.21 7.24 1998 4.27 4.05 5.27 7.81 8.00 9.33 12.81 12.27 10.26 7.28 6.18 5.69 7.77 1999 4.34 4.15 4.65 5.99 7.58 8.70 13.07 11.81 9.95 7.09 5.80 5.19 7.36 2000 3.96 3.99 4.14 7.09 8.15 9.80 ****** 13.73 11.29 7.88 5.76 5.61 ****** 2001 4.28 4.23 5.70 ****** 8.49 11.32 13.17 12.36 10.86 7.68 5.70 5.86 ****** 2002 ****** 4.18 4.83 7.61 7.73 9.75 11.95 12.47 10.60 ****** 6.23 4.32 ****** 2003 4.53 4.49 5.38 8.59 7.92 10.86 14.11 13.34 10.28 7.54 5.11 4.79 8.08 MEAN 3.97 4.12 5.33 7.27 8.59 10.30 12.61 12.64 10.47 7.62 5.60 4.50 7.75 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. ABSOLUTE OF MINIMUM TEMPERATURE WITH DAY YEAR JAN. DAY FEB. DAY MAR. DAY APR. DAY MAY DAY JUNE DAY JULY DAY AUG. DAY SEP. DAY OCT. DAY NOV. DAY DEC. DAY ANNUAL 1964 ***** ** -6.0 1 1.0 5 2.0 14 8.0 3 16.0 1 17.5 31 17.0 2 15.0 19 5.0 29 -3.0 28 -9.0 29 ***** 1965 -7.0 4 -3.0 5 1.0 1 ***** ** 8.0 2 12.0 6 15.0 1 16.5 9 9.5 30 ***** ** ***** ** -7.0 23 ***** 1966 -14.5 2 ***** ** 6.0 19 6.5 7 9.5 4 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1967 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 4.5 29 -4.0 29 -9.5 25 ***** 1968 -6.0 20 -8.0 7 3.0 2 3.0 2 ***** ** ***** ** ***** ** 14.5 21 11.5 18 5.0 29 -1.5 19 ***** ** ***** 1969 -11.5 8 -6.0 1 -2.5 24 -0.5 15 9.5 21 10.0 1 ***** ** 13.0 25 8.0 12 5.0 28 -1.0 11 -3.5 24 ***** 1970 -6.5 29 -4.5 21 0.0 17 3.0 25 5.5 6 8.5 11 13.5 8 13.0 27 8.5 23 3.5 24 3.5 23 -3.5 28 -6.5 1971 -6.0 17 -7.0 16 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 8.0 20 3.0 16 1.5 14 -8.0 21 ***** 1972 -8.5 24 -17.0 11 -6.5 2 -2.5 4 5.0 7 10.0 8 18.5 31 13.5 2 13.5 22 6.5 31 -4.0 28 -9.0 27 -17.0 1973 -7.5 3 -6.5 6 -1.5 9 3.5 1 6.5 1 10.5 8 11.5 1 10.5 29 7.5 15 4.5 28 -4.5 25 -5.0 22 -7.5 1974 -9.0 19 -12.5 4 -3.0 6 1.5 1 6.5 2 14.5 4 16.0 6 13.5 31 10.5 26 4.0 19 -1.5 28 -10.0 27 -12.5 1975 -5.0 5 -8.0 13 -2.5 9 3.0 4 8.0 10 13.0 15 18.5 4 9.5 29 5.5 24 1.0 31 -4.0 30 -7.5 31 -8.0 1976 -6.5 1 -7.5 16 ***** ** ***** ** 10.0 17 11.0 6 16.5 5 15.5 26 9.5 29 5.2 31 -2.2 30 -3.5 24 ***** 1977 -9.5 18 -6.5 2 0.5 1 5.5 17 10.5 19 13.5 2 17.5 3 12.5 30 11.5 8 0.5 24 -0.5 18 -5.0 26 -9.5 1978 -8.8 16 -3.5 6 0.0 17 3.0 16 5.0 3 11.0 3 14.5 8 15.0 27 12.0 26 9.0 6 -3.0 23 -1.4 18 -8.8 1979 -6.0 12 -2.5 24 -5.5 4 3.0 29 5.5 1 11.5 16 18.5 6 15.5 3 10.5 26 5.5 31 -1.5 21 -4.0 31 -6.0 1980 -7.0 24 -8.0 2 -2.0 6 4.0 17 8.5 1 12.5 1 14.0 29 14.0 17 7.5 23 5.0 24 0.5 27 -1.5 14 -8.0 1981 -4.5 4 -3.0 10 -2.5 8 -1.0 5 6.0 5 12.5 5 17.0 20 16.5 31 10.5 24 6.5 18 0.0 25 0.0 10 -4.5 1982 -6.5 21 -9.0 18 -2.0 8 4.5 1 11.5 9 13.0 3 17.0 1 16.5 15 12.5 25 6.0 10 -0.5 14 -8.0 11 -9.0 1983 -14.0 12 -6.5 22 -2.5 1 0.0 2 9.5 1 14.0 9 16.5 2 15.5 29 12.0 29 6.0 7 2.5 17 -3.0 23 -14.0 1984 -11.0 31 -9.0 1 -0.5 17 4.0 2 4.5 2 12.0 1 18.0 14 18.0 20 13.5 22 -1.0 21 1.0 30 -6.0 31 -11.0 1985 -11.5 4 -7.5 24 -6.0 11 5.0 7 8.5 6 15.0 5 15.5 29 17.0 12 12.5 28 3.0 31 3.5 21 -3.5 31 -11.5 1986 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1987 -2.5 9 -1.5 12 -2.5 22 0.0 2 10.0 7 14.5 6 16.5 11 16.0 29 16.0 29 3.5 27 -2.6 30 -3.5 1 -3.5 1988 -4.5 21 -4.0 12 0.0 4 0.0 2 9.0 3 16.5 27 15.5 28 16.0 31 12.5 28 7.5 24 -1.5 15 -7.5 29 -7.5 1989 -9.0 5 -10.5 15 -1.0 31 4.0 1 7.0 1 13.0 2 16.5 1 17.0 20 8.5 23 5.5 23 ***** ** -2.5 8 ***** 1990 -7.5 11 -3.5 13 -3.5 21 2.5 3 9.0 15 13.5 7 17.0 1 17.0 21 14.0 16 6.0 18 0.0 14 -9.5 28 -9.5 1991 -10.0 4 -6.6 13 -4.5 11 4.5 14 7.0 5 12.5 1 17.5 9 11.5 28 9.5 28 9.5 9 -6.5 28 -12.0 17 -12.0 1992 -18.0 29 -14.5 17 -13.0 12 -6.0 3 ***** ** 5.5 5 11.5 5 13.0 31 7.5 30 5.5 27 -5.0 27 -7.5 29 ***** 1993 -7.5 10 -5.5 18 -3.0 23 5.0 10 7.0 8 13.0 1 17.5 4 14.5 5 12.5 23 5.5 9 -4.0 30 -2.5 2 -7.5 1994 -2.5 19 -4.5 19 0.0 17 1.5 4 ***** ** ***** ** 17.0 1 17.0 27 12.0 20 7.0 26 4.0 29 ***** ** ***** 1995 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1996 ***** ** ***** ** ***** ** 0.0 4 6.0 2 14.0 15 18.4 16 ***** ** 13.0 21 6.0 17 0.5 13 -1.0 4 ***** 1997 -7.0 29 -6.0 7 -3.5 10 1.0 12 8.0 6 15.0 4 19.0 8 19.0 31 10.0 15 8.5 30 3.0 27 -2.5 27 -7.0 1998 -5.5 11 -5.0 28 -3.0 3 3.5 7 9.5 2 17.0 4 21.0 25 18.0 7 14.5 28 7.0 25 4.0 27 0.0 6 -5.5 1999 -5.0 4 -1.0 7 0.5 18 4.0 10 11.0 21 17.5 8 19.0 13 18.5 31 10.0 28 7.5 28 -2.4 30 -2.0 5 -5.0 2000 -6.0 18 -5.8 9 -2.0 10 8.0 1 12.0 11 13.0 13 ***** ** 19.0 13 15.5 27 6.0 30 0.5 11 -2.5 29 ***** 2001 -5.5 29 -3.0 13 1.0 12 ***** ** 10.5 19 14.0 10 19.0 1 17.0 28 13.5 22 7.0 30 -3.5 20 -3.0 22 ***** 2002 ***** ** -3.0 5 -0.5 7 4.5 4 8.0 5 14.5 15 17.0 2 17.5 30 15.0 15 ***** ** 0.5 30 -4.0 24 ***** 2003 -3.5 20 -4.0 18 -4.0 2 0.5 18 4.0 1 11.5 6 18.0 1 17.5 2 11.5 21 7.5 18 -0.5 19 -4.0 14 -4.0 LOW. -18.0 29 -17.0 11 -13.0 12 -6.0 3 4.0 1 5.5 5 11.5 1 9.5 29 5.5 24 -1.0 21 -6.5 28 -12.0 17 -18.0 YEAR 1992 1972 1992 1992 2003 1992 1973 1975 1975 1984 1991 1991 1992 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. ABSOLUTE OF MAXIMUM TEMPERATURE WITH DAY YEAR JAN. DAY FEB. DAY MAR. DAY APR. DAY MAY DAY JUNE DAY JULY DAY AUG. DAY SEP. DAY OCT. DAY NOV. DAY DEC. DAY ANNUAL 1964 ***** ** 17.0 25 26.0 26 26.0 8 35.0 24 38.5 17 40.0 6 41.0 14 37.0 2 31.0 4 16.0 1 11.5 5 ***** 1965 6.5 29 9.0 20 20.5 29 ***** ** 33.5 31 35.0 26 39.5 20 38.5 1 37.5 13 ***** ** ***** ** 20.0 1 ***** 1966 19.5 17 ***** ** ***** ** ***** ** 31.5 23 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1967 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 28.0 3 34.0 2 18.0 10 ***** 1968 16.0 2 17.0 26 20.5 21 26.5 28 ***** ** ***** ** ***** ** 39.5 1 30.0 4 24.5 1 19.5 6 ***** ** ***** 1969 8.0 18 15.0 26 23.0 31 28.5 28 33.5 14 38.5 12 ***** ** 37.0 16 35.0 9 29.0 1 21.0 1 12.5 1 ***** 1970 11.0 20 19.5 18 27.0 31 29.5 17 39.5 17 40.0 30 41.5 1 42.0 1 38.0 1 34.0 1 26.0 3 19.0 5 42.0 1971 17.8 4 17.0 22 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 38.5 9 30.0 18 22.0 4 18.0 1 ***** 1972 10.0 18 14.0 18 20.5 31 29.0 30 33.5 28 39.0 21 40.5 23 36.5 10 34.5 15 36.5 7 30.5 1 11.5 1 40.5 1973 8.5 31 18.5 19 21.5 20 32.5 28 36.0 29 42.0 27 44.0 2 43.5 2 39.5 15 30.0 14 21.5 1 16.2 4 44.0 1974 7.5 6 13.5 14 26.5 20 28.5 23 35.5 28 42.5 30 42.0 1 38.0 12 35.5 22 27.0 21 26.5 1 16.0 1 42.5 1975 11.5 1 16.5 24 24.5 27 30.0 14 36.5 29 37.5 27 42.0 5 40.0 1 38.0 7 32.0 1 22.5 1 11.5 13 42.0 1976 14.0 20 15.0 7 17.5 21 26.5 30 34.0 31 39.5 25 42.0 16 41.0 1 39.0 14 29.5 1 23.0 6 17.5 5 42.0 1977 8.0 1 20.5 19 27.0 19 28.0 29 34.5 14 39.5 29 41.5 4 43.0 13 37.0 12 37.5 8 20.5 11 20.0 4 43.0 1978 14.0 10 20.0 20 25.0 31 30.0 10 35.0 17 40.5 30 42.5 1 40.0 14 37.5 12 31.0 1 19.0 1 17.0 1 42.5 1979 19.0 4 17.5 14 23.5 20 30.5 5 33.5 23 38.5 30 42.0 9 39.5 18 38.5 11 32.0 13 26.5 2 16.0 3 42.0 1980 11.5 20 19.0 9 23.0 26 30.0 12 35.5 23 40.5 20 41.0 5 40.0 6 38.0 2 32.5 3 24.5 14 18.5 6 41.0 1981 14.0 9 18.0 22 24.5 27 31.5 27 37.5 25 38.0 28 41.0 16 39.0 6 38.0 3 29.5 4 25.0 3 18.0 3 41.0 1982 15.0 9 14.5 4 20.0 17 32.0 30 36.0 19 39.0 8 40.5 17 41.0 4 35.5 2 27.5 2 18.5 7 10.5 28 41.0 1983 11.5 1 13.5 14 22.5 28 27.0 18 34.0 17 40.0 20 42.0 29 43.0 17 38.0 10 32.0 4 26.0 1 19.5 2 43.0 1984 14.5 6 16.5 13 23.0 8 27.5 8 31.0 28 39.0 11 40.0 16 41.5 16 39.5 4 30.5 6 24.5 3 8.5 15 41.5 1985 15.0 22 20.5 14 23.0 29 30.5 21 38.5 31 42.5 26 41.5 8 39.0 6 38.5 3 32.5 1 24.0 4 18.0 2 42.5 1986 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1987 23.5 30 23.0 1 22.0 9 30.0 19 34.5 28 40.0 29 41.0 19 40.0 4 40.0 4 32.5 3 25.0 7 17.0 22 41.0 1988 16.5 31 20.0 28 25.0 18 31.0 23 37.0 29 41.0 13 42.0 13 40.0 8 38.0 10 32.0 6 27.0 8 21.0 8 42.0 1989 11.0 2 15.5 28 23.0 27 29.5 28 37.5 25 40.5 28 42.0 9 40.0 4 38.0 3 33.0 5 ***** ** 20.0 1 ***** 1990 12.5 5 18.0 19 22.5 12 32.0 27 37.0 25 40.5 29 42.0 28 41.0 5 39.0 14 31.0 1 26.0 4 20.5 5 42.0 1991 13.0 31 15.5 20 22.0 24 31.0 25 33.5 29 39.0 29 41.5 7 42.0 6 39.0 8 28.5 5 25.0 1 16.0 1 42.0 1992 11.0 19 16.5 22 21.0 30 27.5 21 33.0 30 39.0 30 44.5 1 38.5 24 34.5 25 30.5 14 24.0 2 16.5 1 44.5 1993 16.5 30 17.5 28 24.0 31 30.5 20 32.5 19 40.0 29 40.0 2 38.5 12 38.0 1 31.5 1 21.0 2 17.0 26 40.0 1994 17.5 3 18.5 27 25.5 30 34.0 23 ***** ** ***** ** 41.5 30 41.5 3 38.0 1 29.5 1 23.5 1 ***** ** ***** 1995 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1996 ***** ** ***** ** ***** ** 27.0 21 35.5 31 38.5 4 39.0 3 40.0 23 38.0 17 29.0 1 23.0 3 20.0 27 ***** 1997 17.5 7 17.5 18 21.5 24 31.5 26 35.5 28 38.5 27 41.0 14 41.0 18 38.5 1 31.5 6 19.0 21 15.0 7 41.0 1998 12.5 30 18.5 7 22.0 28 32.5 16 33.5 8 39.0 28 41.5 11 40.0 29 37.5 2 33.5 1 24.0 4 19.0 1 41.5 1999 15.5 28 20.0 27 21.0 11 29.0 30 37.5 31 39.5 28 40.5 5 40.0 1 37.5 19 38.0 7 20.5 19 19.0 29 40.5 2000 18.0 2 18.6 24 21.5 21 32.0 20 36.5 26 41.0 24 ***** ** 40.0 27 38.5 10 29.0 12 22.5 3 13.5 25 ***** 2001 16.5 14 20.0 28 23.5 8 ***** ** 38.0 15 41.5 26 40.5 8 41.0 21 37.5 19 35.0 6 25.0 6 20.0 31 ***** 2002 ***** ** 19.5 13 26.5 27 27.4 29 37.6 27 38.5 28 41.0 19 41.0 10 37.5 3 ***** ** 24.0 11 12.0 8 ***** 2003 17.0 13 16.0 9 20.5 25 32.9 7 32.0 16 39.5 23 43.5 17 39.0 1 37.0 7 32.5 10 23.0 2 16.0 19 43.5 HIG. 23.5 30 23.0 1 27.0 31 34.0 23 39.5 17 42.5 30 44.5 1 43.5 2 40.0 4 38.0 7 34.0 2 21.0 8 44.5 YEAR 1987 1987 1970 1994 1970 1974 1992 1973 1987 1999 1967 1988 1992 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. 24 HOUR MAXIMUM PRECIPITATION. YEAR JAN. DAY FEB. DAY MAR. DAY APR. DAY MAY DAY JUNE DAY JULY DAY AUG. DAY SEP. DAY OCT. DAY NOV. DAY DEC. DAY ANNUAL 1964 ***** ** 8.0 5 0.0 ** 7.0 18 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 5.0 25 12.0 17 ***** 1965 25.0 11 7.0 13 8.0 3 ***** ** 0.0 ** 2.0 1 0.0 ** 0.0 ** 8.0 30 ***** ** ***** ** 2.5 28 ***** 1966 10.0 8 ***** ** 19.0 19 17.0 7 9.0 5 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1967 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 5.0 13 10.0 20 6.0 5 ***** 1968 9.0 22 5.0 21 12.0 18 14.0 1 ***** ** ***** ** ***** ** 0.0 ** 0.0 ** 12.0 28 16.0 9 ***** ** ***** 1969 50.0 23 8.0 28 17.0 15 8.0 13 0.0 ** 0.0 ** ***** ** 0.0 ** 4.0 12 13.5 24 2.0 9 7.0 27 ***** 1970 26.6 27 0.0 ** 10.0 11 22.0 23 1.0 10 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 22 2.0 12 26.6 1971 0.0 ** 9.0 15 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 0.0 ** 2.0 27 9.0 19 2.0 20 ***** 1972 20.0 7 41.0 17 26.5 22 5.6 26 8.4 19 11.3 14 0.0 ** 10.0 1 0.0 ** 5.0 30 11.0 29 16.9 31 41.0 1973 6.2 24 19.2 22 8.0 31 5.0 18 2.3 11 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 5.0 19 10.0 30 19.2 1974 25.0 15 15.0 18 8.0 4 5.0 1 3.5 16 9.0 12 6.0 6 0.0 ** 0.5 7 0.0 ** 2.0 8 29.0 5 29.0 1975 18.5 3 16.0 21 6.5 19 9.0 23 10.5 13 7.5 13 0.0 ** 0.0 ** 0.0 ** 0.0 ** 8.0 29 14.0 23 18.5 1976 14.0 20 13.0 10 16.0 23 14.5 9 9.0 20 5.0 7 0.0 ** 0.0 ** 0.0 ** 8.0 31 11.0 27 11.5 22 16.0 1977 14.0 1 3.0 7 4.0 27 20.0 7 10.0 24 0.0 ** 0.0 ** 7.0 30 0.0 ** 12.0 26 14.0 13 10.0 14 20.0 1978 15.0 21 8.0 23 16.5 7 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.0 30 6.0 13 15.0 8 16.5 1979 18.0 10 6.0 9 40.0 26 5.0 25 4.0 4 7.0 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 11.0 9 40.0 1980 17.0 23 15.0 12 10.0 21 7.0 16 5.0 1 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 23 3.0 12 10.0 21 17.0 1981 15.0 13 13.0 23 8.0 15 21.0 4 10.0 8 7.0 26 16.5 20 0.0 ** 0.0 ** 9.5 8 6.5 22 17.0 27 21.0 1982 20.0 29 12.0 14 12.5 27 2.0 8 6.0 24 2.0 1 0.0 ** 0.0 ** 0.0 ** 40.0 28 24.0 1 20.0 30 40.0 1983 15.0 14 7.0 17 20.0 16 7.0 26 15.0 8 0.0 ** 0.0 ** 0.0 ** 5.0 16 5.0 8 14.0 26 11.0 9 20.0 1984 14.0 29 19.0 5 15.0 25 8.0 21 12.0 10 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.5 18 13.0 15 30.0 4 30.0 1985 18.0 2 24.0 2 5.0 8 3.0 27 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 13.0 13 17.0 18 24.0 1986 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1987 4.0 6 11.0 27 17.0 4 13.0 7 2.0 20 0.0 ** 21.0 26 1.0 6 1.0 6 17.0 27 3.0 26 6.0 7 21.0 1988 27.0 19 10.0 16 8.0 1 13.0 26 4.0 6 0.0 ** 5.0 27 2.0 25 0.0 ** 9.0 16 7.0 13 20.0 17 27.0 1989 6.0 29 10.0 14 16.0 11 2.5 13 10.0 7 1.5 7 2.0 16 0.0 ** 0.0 ** 0.0 ** ***** ** 19.0 13 ***** 1990 14.0 2 25.0 10 1.5 17 8.0 4 3.5 13 0.0 ** 0.0 ** 0.0 ** 0.0 ** 5.5 29 8.0 13 10.0 25 25.0 1991 5.0 3 10.0 22 32.0 25 15.0 4 8.0 25 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 22 0.0 ** 20.0 12 32.0 1992 9.0 8 15.0 25 20.0 15 23.0 27 18.0 2 4.0 8 0.0 ** 2.0 12 0.0 ** 0.0 ** 5.0 8 7.0 15 23.0 1993 28.0 8 34.0 21 14.0 8 13.0 29 2.0 6 3.0 3 0.0 ** 0.0 ** 0.0 ** 0.0 ** 9.0 3 8.0 2 34.0 1994 9.0 17 25.0 1 21.0 12 12.0 29 ***** ** ***** ** 0.0 ** 0.0 ** 0.0 ** 10.0 23 37.0 26 ***** ** ***** 1995 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1996 ***** ** ***** ** ***** ** 12.0 3 6.0 8 4.5 27 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 16 5.0 25 ***** 1997 3.5 16 0.0 ** 3.0 4 1.0 28 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.5 21 14.0 13 15.0 10 15.0 1998 5.0 2 8.5 10 7.0 9 2.0 5 3.0 14 0.0 ** 0.0 ** 3.5 2 0.0 ** 0.0 ** 1.5 16 13.0 4 13.0 1999 6.5 17 3.5 6 10.0 2 2.0 24 0.0 ** 0.0 ** 6.5 16 0.0 ** 0.0 ** 7.0 26 20.0 9 9.0 10 20.0 2000 25.5 28 18.0 14 7.0 23 2.0 22 0.0 ** 0.0 ** ***** ** 0.0 ** 0.0 ** 17.5 15 8.5 6 31.5 11 ***** 2001 0.0 ** 0.5 19 13.5 10 ***** ** 13.0 4 0.5 12 1.0 19 12.0 12 0.0 ** 4.0 26 8.5 30 8.0 1 ***** 2002 ***** ** 12.0 14 7.0 19 31.5 3 9.0 4 0.0 ** 0.5 30 0.0 ** 0.0 ** ***** ** 11.0 26 7.5 13 ***** 2003 4.0 29 12.0 14 18.5 8 33.0 14 5.5 29 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 27 4.0 30 10.0 2 33.0 HIG. 50.0 23 41.0 17 40.0 26 33.0 14 18.0 2 11.3 14 21.0 26 12.0 12 8.0 30 40.0 28 37.0 26 31.5 11 50.0 YEAR 1969 1972 1979 2003 1992 1972 1987 2001 1965 1982 1994 2000 1969 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1964 ****** 13.0 0.0 7.0 0.0 0.0 0.0 0.0 0.0 0.0 8.0 19.0 ****** 27.7 14.9 0.0 57.4 1965 97.0 7.0 39.0 ****** 0.0 2.4 0.0 0.0 11.0 ****** ****** 2.5 ****** 90.0 1.5 6.9 1.6 1966 18.0 ****** 19.0 23.0 9.0 ****** ****** ****** ****** ****** ****** ****** ****** 53.6 46.4 ***** ***** 1967 ****** ****** ****** ****** ****** ****** ****** ****** ****** 11.0 20.0 10.6 ****** ***** ***** ***** 100.0 1968 14.5 5.0 22.0 35.0 ****** ****** ****** 0.0 0.0 14.0 45.0 ****** ****** 30.6 25.8 0.0 43.5 1969 144.5 8.0 40.5 24.0 0.0 0.0 ****** 0.0 4.0 30.5 2.0 12.5 ****** 72.6 9.0 1.5 16.9 1970 45.9 0.0 16.0 25.0 1.0 0.0 0.0 0.0 0.0 0.0 4.0 2.0 93.9 65.9 27.7 0.0 6.4 1971 0.0 12.0 ****** ****** ****** ****** ****** ****** 0.0 2.0 26.5 3.5 ****** 27.3 ***** 0.0 72.7 1972 34.5 168.5 111.9 18.1 39.2 13.6 0.0 26.0 0.0 5.0 35.0 57.2 509.0 61.9 13.9 5.1 19.1 1973 19.4 44.6 11.4 12.5 2.3 0.0 0.0 0.0 0.0 0.0 9.0 23.0 122.2 61.7 12.1 0.0 26.2 1974 91.0 66.0 18.0 19.5 5.5 10.5 15.0 0.0 0.5 0.0 2.5 66.5 295.0 59.3 12.0 5.3 23.4 1975 38.0 39.0 19.5 12.5 14.5 7.5 0.0 0.0 0.0 0.0 11.0 44.0 186.0 51.9 18.5 0.0 29.6 1976 28.0 27.0 31.0 30.5 34.0 11.0 0.0 0.0 0.0 17.0 11.0 33.5 223.0 38.6 33.9 0.0 27.6 1977 50.0 5.0 4.0 48.5 16.0 0.0 0.0 7.0 0.0 42.5 18.5 21.0 212.5 27.8 30.4 3.3 38.6 1978 19.0 21.0 50.5 0.0 0.0 0.0 0.0 0.0 0.0 3.5 12.0 39.5 145.5 62.2 0.0 0.0 37.8 1979 41.0 12.0 63.0 8.0 7.0 18.0 0.0 0.0 0.0 0.0 0.0 35.0 184.0 63.0 17.9 0.0 19.0 1980 40.0 71.0 35.0 20.0 5.0 0.0 0.0 0.0 0.0 8.0 8.0 13.0 200.0 73.0 12.5 0.0 14.5 1981 39.5 28.0 24.0 50.0 18.0 7.0 16.5 0.0 0.0 16.5 6.5 32.0 238.0 38.4 31.5 6.9 23.1 1982 24.5 29.5 32.5 5.0 16.0 2.0 0.0 0.0 0.0 133.5 57.0 47.0 347.0 24.9 6.6 0.0 68.4 1983 29.0 12.0 37.0 24.0 35.5 0.0 0.0 0.0 5.0 5.0 30.0 26.0 203.5 38.3 29.2 2.5 30.0 1984 22.0 26.0 32.0 13.5 29.0 0.0 0.0 0.0 0.0 6.0 47.0 55.0 230.5 34.7 18.4 0.0 46.9 1985 48.0 28.0 9.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 27.0 28.5 143.5 59.2 2.1 0.0 38.7 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1987 6.0 25.0 62.0 19.0 2.5 0.0 21.5 1.0 1.0 61.0 5.0 17.0 221.0 42.1 9.7 10.6 37.6 1988 56.0 31.5 25.5 45.0 4.0 0.0 14.0 2.0 0.0 12.0 13.5 30.0 233.5 48.4 21.0 6.9 23.8 1989 18.0 31.0 49.5 3.5 10.5 1.5 2.0 0.0 0.0 0.0 ****** 60.0 ****** 56.0 8.8 1.1 34.1 1990 33.5 72.0 4.0 21.0 3.5 0.0 0.0 0.0 0.0 11.5 8.0 14.0 167.5 65.4 14.6 0.0 20.0 1991 22.0 20.5 86.0 21.5 26.0 0.0 0.0 0.0 0.0 8.5 0.0 46.0 230.5 55.7 20.6 0.0 23.6 1992 14.0 25.0 50.0 42.5 41.0 6.0 0.0 2.0 0.0 0.0 5.0 20.5 206.0 43.2 43.4 1.0 12.4 1993 30.0 88.0 36.0 28.0 2.0 3.0 0.0 0.0 0.0 0.0 35.0 16.0 238.0 64.7 13.9 0.0 21.4 1994 36.0 31.0 27.0 19.0 ****** ****** 0.0 0.0 0.0 18.0 102.0 ****** ****** 40.3 8.2 0.0 51.5 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1996 ****** ****** ****** 35.5 14.5 6.5 0.0 0.0 0.0 0.0 1.0 11.0 ****** ***** 82.5 0.0 17.5 1997 6.5 0.0 12.0 1.0 0.0 0.0 0.0 0.0 0.0 0.5 29.5 34.0 83.5 22.2 1.2 0.0 76.6 1998 19.5 26.0 17.5 3.5 7.0 0.0 0.0 7.0 0.0 0.0 1.5 21.0 103.0 61.2 10.2 6.8 21.8 1999 21.5 4.5 18.5 3.0 0.0 0.0 17.5 0.0 0.0 13.0 69.0 16.5 163.5 27.2 1.8 10.7 60.2 2000 34.5 20.0 7.0 3.0 0.0 0.0 ****** 0.0 0.0 35.0 35.0 63.5 ****** 31.1 1.5 0.0 67.4 2001 0.0 0.5 28.0 ****** 18.5 0.5 1.0 14.5 0.0 9.0 15.0 17.5 ****** 27.3 18.2 14.8 39.7 2002 ****** 50.5 17.0 88.5 15.5 0.0 0.5 0.0 0.0 ****** 22.5 39.0 ****** 28.9 44.5 0.2 26.3 2003 6.0 36.5 39.0 91.5 6.0 0.0 0.0 0.0 0.0 5.5 4.5 25.5 214.5 38.0 45.5 0.0 16.6 MEAN 33.7 31.0 31.3 23.7 11.3 2.7 2.8 1.7 0.6 13.4 20.8 28.7 201.7 47.7 18.7 2.4 31.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 2 0 1 0 0 0 0 0 0 2 2 *** 1965 8 1 7 *** 0 2 0 0 2 *** *** 1 *** 1966 3 *** 1 3 1 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** 4 4 4 *** 1968 2 1 2 5 *** *** *** 0 0 2 7 *** *** 1969 7 1 7 7 0 0 *** 0 1 5 1 2 *** 1970 4 0 4 3 1 0 0 0 0 0 1 1 14 1971 0 3 *** *** *** *** *** *** 0 1 7 3 *** 1972 7 7 14 4 8 2 0 3 0 1 5 8 59 1973 5 6 3 4 1 0 0 0 0 0 2 3 24 1974 12 9 8 8 2 3 3 0 1 0 2 4 52 1975 5 6 5 2 3 1 0 0 0 0 2 5 29 1976 4 3 3 4 7 3 0 0 0 4 1 5 34 1977 9 2 1 8 4 0 0 1 0 7 3 4 39 1978 3 4 6 0 0 0 0 0 0 2 3 7 25 1979 3 3 3 2 2 3 0 0 0 0 0 5 21 1980 6 9 5 4 1 0 0 0 0 2 3 3 33 1981 5 5 6 6 4 1 1 0 0 4 1 5 38 1982 3 3 5 4 6 1 0 0 0 8 5 6 41 1983 3 2 3 7 6 0 0 0 1 1 8 3 34 1984 3 3 4 3 6 0 0 0 0 2 7 4 32 1985 6 2 3 1 0 0 0 0 0 0 3 6 21 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 2 6 7 2 2 0 2 1 1 10 2 5 40 1988 7 7 5 6 1 0 4 1 0 2 4 3 40 1989 4 4 8 2 2 1 1 0 0 0 *** 8 *** 1990 7 7 3 4 1 0 0 0 0 4 1 3 30 1991 6 4 8 3 6 0 0 0 0 3 0 7 37 1992 3 3 7 6 7 2 0 1 0 0 1 5 35 1993 2 6 5 4 1 1 0 0 0 0 7 2 28 1994 6 2 3 3 *** *** 0 0 0 2 7 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 7 4 2 0 0 0 0 1 3 *** 1997 2 0 5 1 0 0 0 0 0 1 3 3 15 1998 7 7 4 2 3 0 0 2 0 0 1 2 28 1999 6 2 3 2 0 0 4 0 0 2 6 6 31 2000 5 2 1 2 0 0 *** 0 0 6 9 4 *** 2001 0 1 4 *** 5 1 1 3 0 5 4 6 *** 2002 *** 6 3 7 3 0 1 0 0 *** 7 8 *** 2003 2 6 7 8 2 0 0 0 0 2 2 7 36 MEAN 5 4 5 4 3 1 1 0 0 2 3 4 32 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. NO. OF DAYS PRECIPITATION EQUAL OR MORE THAN 1 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 2 0 1 0 0 0 0 0 0 2 2 *** 1965 8 1 7 *** 0 1 0 0 2 *** *** 1 *** 1966 3 *** 1 3 1 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** 4 4 4 *** 1968 2 1 2 5 *** *** *** 0 0 2 7 *** *** 1969 7 1 7 7 0 0 *** 0 1 5 1 2 *** 1970 4 0 4 3 1 0 0 0 0 0 1 1 14 1971 0 3 *** *** *** *** *** *** 0 1 7 2 *** 1972 7 7 13 4 8 2 0 3 0 1 5 8 58 1973 5 6 3 4 1 0 0 0 0 0 2 3 24 1974 12 9 8 8 2 2 3 0 0 0 1 4 49 1975 5 6 5 2 3 1 0 0 0 0 2 5 29 1976 4 3 3 4 7 3 0 0 0 4 1 5 34 1977 9 2 1 8 4 0 0 1 0 7 3 4 39 1978 3 4 6 0 0 0 0 0 0 1 3 7 24 1979 3 2 3 2 2 3 0 0 0 0 0 5 20 1980 6 9 5 4 1 0 0 0 0 2 3 3 33 1981 5 5 6 6 4 1 1 0 0 4 1 5 38 1982 3 3 5 2 5 1 0 0 0 8 5 6 38 1983 3 2 3 7 6 0 0 0 1 1 8 3 34 1984 3 3 4 3 6 0 0 0 0 2 7 4 32 1985 6 2 3 1 0 0 0 0 0 0 3 6 21 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 2 6 7 2 1 0 1 1 1 10 2 4 37 1988 6 7 5 6 1 0 4 1 0 2 3 3 38 1989 4 4 7 2 1 1 1 0 0 0 *** 8 *** 1990 6 7 3 4 1 0 0 0 0 2 1 3 27 1991 6 4 7 3 6 0 0 0 0 3 0 7 36 1992 3 3 7 6 7 2 0 1 0 0 1 5 35 1993 2 6 5 4 1 1 0 0 0 0 7 2 28 1994 6 2 3 3 *** *** 0 0 0 2 7 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 7 4 2 0 0 0 0 1 3 *** 1997 2 0 5 1 0 0 0 0 0 0 3 3 14 1998 7 6 4 2 3 0 0 2 0 0 1 2 27 1999 6 2 3 2 0 0 4 0 0 2 6 5 30 2000 5 2 1 2 0 0 *** 0 0 5 8 4 *** 2001 0 0 4 *** 4 0 1 2 0 4 4 5 *** 2002 *** 6 3 7 3 0 0 0 0 *** 5 8 *** 2003 2 6 7 6 1 0 0 0 0 2 1 7 32 MEAN 5 4 5 4 2 1 0 0 0 2 3 4 30 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. NO. OF DAYS PRECIPITATION EQUAL OR MORE THAN 10 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 0 0 0 0 0 0 0 0 0 0 1 *** 1965 4 0 0 *** 0 0 0 0 0 *** *** 0 *** 1966 1 *** 1 1 0 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** 0 1 0 *** 1968 0 0 2 1 *** *** *** 0 0 1 1 *** *** 1969 5 0 1 0 0 0 *** 0 0 1 0 0 *** 1970 2 0 1 1 0 0 0 0 0 0 0 0 4 1971 0 0 *** *** *** *** *** *** 0 0 0 0 *** 1972 1 6 4 0 0 1 0 1 0 0 1 2 16 1973 0 2 0 0 0 0 0 0 0 0 0 1 3 1974 3 3 0 0 0 0 0 0 0 0 0 3 9 1975 1 1 0 0 1 0 0 0 0 0 0 2 5 1976 1 1 1 1 0 0 0 0 0 0 1 1 6 1977 2 0 0 1 1 0 0 0 0 1 1 1 7 1978 1 0 2 0 0 0 0 0 0 0 0 1 4 1979 3 0 2 0 0 0 0 0 0 0 0 2 7 1980 1 4 1 0 0 0 0 0 0 0 0 1 7 1981 2 1 0 1 1 0 1 0 0 0 0 1 7 1982 1 1 1 0 0 0 0 0 0 4 3 2 12 1983 2 0 2 0 1 0 0 0 0 0 1 1 7 1984 1 1 1 0 1 0 0 0 0 0 2 2 8 1985 2 1 0 0 0 0 0 0 0 0 1 1 5 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 1 3 1 0 0 1 0 0 1 0 0 7 1988 1 1 0 2 0 0 0 0 0 0 0 1 5 1989 0 1 1 0 1 0 0 0 0 0 *** 2 *** 1990 1 3 0 0 0 0 0 0 0 0 0 1 5 1991 0 1 2 1 0 0 0 0 0 0 0 1 5 1992 0 1 2 1 1 0 0 0 0 0 0 0 5 1993 1 3 1 2 0 0 0 0 0 0 0 0 7 1994 0 1 1 1 *** *** 0 0 0 1 4 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 1 0 0 0 0 0 0 0 0 *** 1997 0 0 0 0 0 0 0 0 0 0 2 2 4 1998 0 0 0 0 0 0 0 0 0 0 0 1 1 1999 0 0 1 0 0 0 0 0 0 0 3 0 4 2000 1 1 0 0 0 0 *** 0 0 1 0 3 *** 2001 0 0 1 *** 1 0 0 1 0 0 0 0 *** 2002 *** 1 0 3 0 0 0 0 0 *** 1 0 *** 2003 0 1 2 4 0 0 0 0 0 0 0 1 8 MEAN 1 1 1 1 0 0 0 0 0 0 1 1 6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 66 54 54 38 42 48 53 53 54 56 62 *** 1965 70 77 51 *** 35 34 45 54 59 *** *** 71 *** 1966 86 *** 55 54 57 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** 56 64 63 *** 1968 66 55 53 53 *** *** *** 56 61 69 73 *** *** 1969 63 70 65 69 58 61 *** 58 59 58 64 81 *** 1970 75 66 63 57 55 56 54 59 58 54 56 72 60 1971 73 75 *** *** *** *** *** *** 52 63 75 79 *** 1972 85 83 81 57 67 40 26 59 61 63 71 79 64 1973 78 79 66 63 58 46 53 52 60 56 64 63 62 1974 81 87 81 66 57 56 61 60 58 57 76 86 69 1975 84 86 74 64 66 60 48 53 59 68 75 87 69 1976 83 78 86 72 71 55 57 45 51 65 69 81 68 1977 90 77 55 70 67 51 54 51 59 79 82 83 68 1978 85 79 71 53 57 53 53 54 53 61 74 83 65 1979 84 81 79 61 71 65 48 53 49 65 61 86 67 1980 79 91 74 59 58 55 46 53 53 63 74 73 65 1981 83 77 57 60 56 56 58 57 51 70 62 76 64 1982 84 90 74 55 66 54 47 51 56 80 87 92 70 1983 *** 85 79 72 69 54 42 52 59 56 67 86 *** 1984 81 80 59 58 65 46 45 45 55 50 69 90 62 1985 86 70 73 61 54 49 52 51 44 54 76 76 62 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 76 67 72 51 56 41 48 55 55 63 62 76 60 1988 79 78 70 74 64 54 65 70 57 64 68 70 68 1989 75 79 81 65 58 51 54 52 51 62 *** 80 *** 1990 83 84 71 67 66 59 60 61 66 66 75 79 70 1991 86 84 82 66 76 64 42 55 57 62 55 82 68 1992 88 81 75 77 87 74 68 68 62 63 74 81 75 1993 78 80 76 81 66 62 70 75 74 63 80 84 74 1994 86 81 77 76 *** *** 76 74 77 81 78 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 93 78 72 56 55 61 65 71 78 *** 1997 77 85 72 54 57 56 60 53 57 56 79 85 66 1998 90 82 76 69 63 52 56 59 59 65 68 77 68 1999 84 65 74 57 49 48 61 51 67 61 86 87 66 2000 76 77 60 60 55 55 *** 54 68 78 84 93 *** 2001 87 75 71 *** 59 56 56 59 59 68 73 85 *** 2002 *** 74 63 74 60 50 55 62 57 *** 80 87 *** 2003 82 79 77 76 64 59 60 62 67 60 73 85 70 MEAN 81 78 70 65 61 54 54 57 58 63 71 80 66 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 39 34 26 23 32 32 32 33 37 32 51 *** 1965 60 50 29 *** 18 22 30 34 40 *** *** 53 *** 1966 76 *** 40 40 42 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** *** *** *** *** 1968 *** *** *** *** *** *** *** *** *** *** *** *** *** 1969 *** *** 66 46 29 22 *** 24 31 33 46 50 *** 1970 58 38 33 31 32 23 28 27 28 35 40 50 35 1971 45 45 *** *** *** *** *** *** 18 23 47 47 *** 1972 77 83 71 47 58 27 16 50 49 51 58 70 55 1973 69 61 35 25 18 16 19 23 23 23 51 47 34 1974 71 73 56 36 21 21 24 25 28 21 33 57 39 1975 60 57 41 31 30 21 18 24 24 24 38 63 36 1976 51 46 56 39 31 24 21 19 24 36 38 55 37 1977 81 46 23 36 35 17 21 21 23 40 43 55 37 1978 50 44 34 19 21 19 31 21 21 30 43 54 32 1979 61 48 *** *** *** *** *** 20 18 29 30 56 *** 1980 60 61 34 26 25 22 18 23 18 26 42 34 32 1981 39 32 30 29 25 27 26 24 18 30 21 40 28 1982 43 40 42 24 27 19 17 21 19 41 53 53 33 1983 62 33 38 34 31 20 15 19 21 21 33 45 31 1984 39 48 38 27 27 20 20 22 19 19 42 46 31 1985 53 36 44 28 22 17 19 21 17 26 39 44 31 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 20 23 33 26 22 18 20 20 22 39 42 50 28 1988 48 42 32 36 23 26 35 29 24 26 29 42 33 1989 55 59 58 35 30 23 23 22 24 31 *** 52 *** 1990 53 57 46 39 36 32 36 33 31 37 36 49 40 1991 57 55 56 41 34 32 24 23 29 34 37 59 40 1992 50 32 52 44 69 55 53 61 57 41 37 32 49 1993 46 39 47 47 43 32 36 44 42 30 47 42 41 1994 62 47 57 60 *** *** 66 44 59 56 34 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 90 52 50 29 32 34 35 38 47 *** 1997 48 84 43 32 32 30 27 24 27 26 51 62 41 1998 64 52 51 37 35 22 26 29 28 31 35 51 38 1999 53 37 44 30 22 22 29 23 30 28 52 54 35 2000 49 45 37 32 25 21 *** 27 28 42 50 71 *** 2001 54 44 43 *** 26 23 25 24 27 32 43 59 *** 2002 *** 37 31 49 28 20 24 32 25 *** 48 55 *** 2003 51 48 47 50 31 24 24 27 28 27 37 57 38 MEAN 55 48 43 37 31 25 27 28 28 32 41 52 37 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 48 42 32 30 39 37 39 41 45 42 41 *** 1965 35 40 36 *** 22 26 34 39 47 *** *** 61 *** 1966 78 *** 48 48 50 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** 42 45 42 *** 1968 45 50 46 42 *** *** *** 38 57 54 56 *** *** 1969 62 70 69 57 50 52 *** 43 45 47 53 60 *** 1970 68 47 48 41 43 37 39 42 41 46 49 55 46 1971 61 52 *** *** *** *** *** *** 40 41 65 65 *** 1972 86 84 73 48 62 32 22 54 55 57 65 76 60 1973 74 69 49 44 36 25 25 34 44 32 56 45 44 1974 82 80 61 43 29 25 33 34 36 48 52 82 50 1975 78 72 57 45 37 28 24 32 35 40 56 75 48 1976 65 65 69 51 43 30 28 29 30 46 57 74 49 1977 91 65 36 46 46 21 25 33 37 62 66 76 50 1978 71 60 47 34 31 31 33 32 34 48 61 66 46 1979 75 67 56 41 44 31 25 32 32 42 51 76 48 1980 87 74 54 39 37 33 27 35 32 44 61 62 49 1981 59 53 51 48 38 35 32 40 35 48 42 57 45 1982 68 63 51 37 38 28 28 35 38 62 77 86 51 1983 88 61 46 50 41 30 26 29 35 39 53 73 48 1984 66 63 42 32 37 22 22 25 30 38 65 82 44 1985 79 49 48 38 31 26 23 31 32 41 61 66 44 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 63 56 54 35 37 27 32 26 26 55 60 62 44 1988 67 60 53 51 33 43 43 43 41 48 43 58 49 1989 78 75 78 62 54 43 44 39 50 46 *** 63 *** 1990 80 71 56 52 49 56 55 55 64 55 57 65 60 1991 78 68 72 60 53 46 41 49 50 59 67 69 59 1992 80 71 67 62 84 71 66 74 76 75 80 79 74 1993 77 76 70 68 59 48 56 64 61 58 75 77 66 1994 79 61 70 71 *** *** 70 53 75 64 41 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 91 *** *** *** *** 38 48 53 61 *** 1997 59 76 51 33 39 27 24 28 33 39 65 76 46 1998 79 61 52 42 35 26 34 37 41 47 54 67 48 1999 65 46 51 37 32 25 37 33 42 42 66 73 46 2000 65 55 44 36 31 30 *** 42 47 60 68 85 *** 2001 74 58 57 *** 37 35 37 39 46 49 59 77 *** 2002 *** 51 42 57 36 31 34 38 42 *** 65 75 *** 2003 69 61 58 62 43 37 36 40 48 44 56 74 52 MEAN 72 62 54 48 41 34 35 39 43 49 58 68 50 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. NO. OF DAYS MINIMUM TEMPERATURE EQUAL OR LESS THAN -4 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 2 0 0 0 0 0 0 0 0 0 18 *** 1965 22 0 0 *** 0 0 0 0 0 *** *** 7 *** 1966 20 *** 0 0 0 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** 0 1 6 *** 1968 10 9 0 0 *** *** *** 0 0 0 0 *** *** 1969 20 3 0 0 0 0 *** 0 0 0 0 0 *** 1970 3 1 0 0 0 0 0 0 0 0 0 0 4 1971 14 9 *** *** *** *** *** *** 0 0 0 6 *** 1972 20 28 4 0 0 0 0 0 0 0 1 17 70 1973 23 3 0 0 0 0 0 0 0 0 4 10 40 1974 17 10 0 0 0 0 0 0 0 0 0 10 37 1975 6 5 0 0 0 0 0 0 0 0 1 12 24 1976 7 10 *** *** 0 0 0 0 0 0 0 0 *** 1977 18 4 0 0 0 0 0 0 0 0 0 3 25 1978 7 0 0 0 0 0 0 0 0 0 0 0 7 1979 7 0 4 0 0 0 0 0 0 0 0 1 12 1980 12 4 0 0 0 0 0 0 0 0 0 0 16 1981 1 0 0 0 0 0 0 0 0 0 0 0 1 1982 4 7 0 0 0 0 0 0 0 0 0 8 19 1983 18 1 0 0 0 0 0 0 0 0 0 0 19 1984 2 6 0 0 0 0 0 0 0 0 0 9 17 1985 11 4 5 0 0 0 0 0 0 0 0 0 20 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 1 1 0 0 0 0 0 0 0 0 0 3 5 1989 17 16 0 0 0 0 0 0 0 0 *** 0 *** 1990 6 0 0 0 0 0 0 0 0 0 0 8 14 1991 1 8 1 0 0 0 0 0 0 0 2 17 29 1992 30 23 25 4 *** 0 0 0 0 0 1 2 *** 1993 16 3 0 0 0 0 0 0 0 0 1 0 20 1994 0 3 0 0 *** *** 0 0 0 0 0 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 0 0 0 0 *** 0 0 0 0 *** 1997 2 8 0 0 0 0 0 0 0 0 0 0 10 1998 5 1 0 0 0 0 0 0 0 0 0 0 6 1999 3 0 0 0 0 0 0 0 0 0 0 0 3 2000 1 2 0 0 0 0 *** 0 0 0 0 0 *** 2001 3 0 0 *** 0 0 0 0 0 0 0 0 *** 2002 *** 0 0 0 0 0 0 0 0 *** 0 1 *** 2003 0 1 1 0 0 0 0 0 0 0 0 2 4 MEAN 10 5 1 0 0 0 0 0 0 0 0 4 20 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. NO. OF DAYS MINIMUM TEMPERATURE EQUAL OR MORE THAN 21 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 0 0 0 0 16 12 7 0 0 0 0 *** 1965 0 0 0 *** 0 0 0 0 0 *** *** 0 *** 1966 0 *** 0 0 0 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** 0 0 0 *** 1968 0 0 0 0 *** *** *** 0 0 0 0 *** *** 1969 0 0 0 0 0 0 *** 0 0 0 0 0 *** 1970 0 0 0 0 0 0 0 0 0 0 0 0 0 1971 0 0 *** *** *** *** *** *** 0 0 0 0 *** 1972 0 0 0 0 0 2 26 0 0 0 0 0 28 1973 0 0 0 0 0 0 0 0 0 0 0 0 0 1974 0 0 0 0 1 7 14 3 0 0 0 0 25 1975 0 0 0 0 0 0 20 6 0 0 0 0 26 1976 0 0 *** *** 0 4 16 13 1 0 0 0 *** 1977 0 0 0 0 0 7 17 20 0 0 0 0 44 1978 0 0 0 0 0 4 9 8 0 0 0 0 21 1979 0 0 0 0 0 1 21 2 2 0 0 0 26 1980 0 0 0 0 0 2 15 9 2 0 0 0 28 1981 0 0 0 0 1 4 11 11 0 0 0 0 27 1982 0 0 0 0 0 2 16 4 0 0 0 0 22 1983 0 0 0 0 0 7 19 17 0 0 0 0 43 1984 0 0 0 0 0 5 23 18 1 0 0 0 47 1985 0 0 0 0 1 10 14 9 0 0 0 0 34 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 0 0 0 0 8 16 19 19 0 0 0 62 1988 0 0 0 0 0 11 22 15 1 0 0 0 49 1989 0 0 0 0 0 5 18 11 0 0 *** 0 *** 1990 0 0 0 0 1 9 18 10 0 0 0 0 38 1991 0 0 0 0 0 3 16 6 0 0 0 0 25 1992 0 0 0 0 *** 0 1 3 0 0 0 0 *** 1993 0 0 0 0 0 1 7 5 1 0 0 0 14 1994 0 0 0 0 *** *** 12 3 0 0 0 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 0 0 4 16 *** 0 0 0 0 *** 1997 0 0 0 0 3 14 26 14 0 1 0 0 58 1998 0 0 0 1 2 19 31 17 2 0 0 0 72 1999 0 0 0 0 7 23 24 30 1 1 0 0 86 2000 0 0 0 0 3 15 *** 17 1 0 0 0 *** 2001 0 0 0 *** 1 9 12 17 0 0 0 0 *** 2002 *** 0 0 0 0 7 23 12 0 *** 0 0 *** 2003 0 0 0 0 0 4 24 9 0 0 0 0 37 MEAN 0 0 0 0 1 6 16 9 1 0 0 0 33 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR LESS THAN 0 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1965 0 0 0 *** 0 0 0 0 0 *** *** 0 *** 1966 0 *** *** *** 0 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** 0 0 0 *** 1968 0 1 0 0 *** *** *** 0 0 0 0 *** *** 1969 13 0 0 0 0 0 *** 0 0 0 0 0 *** 1970 0 0 0 0 0 0 0 0 0 0 0 0 0 1971 0 0 *** *** *** *** *** *** 0 0 0 0 *** 1972 4 2 0 0 0 0 0 0 0 0 0 1 7 1973 0 0 0 0 0 0 0 0 0 0 0 0 0 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 0 0 0 0 0 0 0 0 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 3 0 0 0 0 0 0 0 0 0 0 0 3 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 0 0 0 0 0 0 0 0 0 0 0 0 0 1983 3 0 0 0 0 0 0 0 0 0 0 0 3 1984 0 0 0 0 0 0 0 0 0 0 0 0 0 1985 1 0 0 0 0 0 0 0 0 0 0 0 1 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 0 0 *** 0 *** 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 1 0 0 0 0 0 0 0 0 0 0 1 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 0 *** *** 0 0 0 0 0 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 0 0 0 0 0 0 0 0 0 *** 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 *** 0 0 0 0 0 *** 2001 0 0 0 *** 0 0 0 0 0 0 0 0 *** 2002 *** 0 0 0 0 0 0 0 0 *** 0 0 *** 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 1 0 0 0 0 0 0 0 0 0 0 0 1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR MORE THAN 30 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 0 0 0 15 30 31 31 30 3 0 0 *** 1965 0 0 0 *** 15 30 31 31 21 *** *** 0 *** 1966 0 *** *** *** 12 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** 0 1 0 *** 1968 0 0 0 0 *** *** *** 30 2 0 0 *** *** 1969 0 0 0 0 13 30 *** 31 15 0 0 0 *** 1970 0 0 0 0 17 26 31 31 20 3 0 0 128 1971 0 0 *** *** *** *** *** *** 20 1 0 0 *** 1972 0 0 0 0 4 28 31 30 30 28 1 0 152 1973 0 0 0 2 18 30 29 31 24 2 0 0 136 1974 0 0 0 0 19 30 31 31 24 0 0 0 135 1975 0 0 0 1 13 30 31 31 25 5 0 0 136 1976 0 0 0 0 5 28 31 31 27 0 0 0 122 1977 0 0 0 0 12 28 31 31 30 5 0 0 137 1978 0 0 0 1 20 26 31 31 29 1 0 0 139 1979 0 0 0 2 13 29 31 31 21 9 0 0 136 1980 0 0 0 4 17 30 31 31 28 10 0 0 151 1981 0 0 0 3 15 25 31 31 25 0 0 0 130 1982 0 0 0 6 17 30 31 31 27 0 0 0 142 1983 0 0 0 0 16 30 30 31 25 6 0 0 138 1984 0 0 0 0 4 30 31 31 30 1 0 0 127 1985 0 0 0 3 19 30 31 31 29 2 0 0 145 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 0 0 1 21 30 31 31 30 5 0 0 149 1988 0 0 0 4 23 30 31 31 27 4 0 0 150 1989 0 0 0 0 10 30 31 31 24 9 *** 0 *** 1990 0 0 0 4 24 30 31 31 30 3 0 0 153 1991 0 0 0 4 6 30 31 30 24 0 0 0 125 1992 0 0 0 0 3 29 31 28 28 1 0 0 120 1993 0 0 0 1 11 29 31 31 28 2 0 0 133 1994 0 0 0 5 *** *** 31 29 29 0 0 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 0 12 29 29 23 25 0 0 0 *** 1997 0 0 0 3 12 29 31 24 23 5 0 0 127 1998 0 0 0 3 13 28 30 20 28 8 0 0 130 1999 0 0 0 0 19 30 26 31 20 11 0 0 137 2000 0 0 0 6 23 26 *** 24 21 0 0 0 *** 2001 0 0 0 *** 19 29 27 28 27 4 0 0 *** 2002 *** 0 0 0 13 29 31 27 30 *** 0 0 *** 2003 0 0 0 1 8 28 31 30 16 8 0 0 122 MEAN 0 0 0 2 14 29 31 30 25 4 0 0 135 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR MORE THAN 40 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 0 0 0 0 0 6 3 0 0 0 0 *** 1965 0 0 0 *** 0 0 0 0 0 *** *** 0 *** 1966 0 *** *** *** 0 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** 0 0 0 *** 1968 0 0 0 0 *** *** *** 0 0 0 0 *** *** 1969 0 0 0 0 0 0 *** 0 0 0 0 0 *** 1970 0 0 0 0 0 1 4 1 0 0 0 0 6 1971 0 0 *** *** *** *** *** *** 0 0 0 0 *** 1972 0 0 0 0 0 0 1 0 0 0 0 0 1 1973 0 0 0 0 0 7 25 9 0 0 0 0 41 1974 0 0 0 0 0 3 3 0 0 0 0 0 6 1975 0 0 0 0 0 0 14 3 0 0 0 0 17 1976 0 0 0 0 0 0 9 3 0 0 0 0 12 1977 0 0 0 0 0 0 15 8 0 0 0 0 23 1978 0 0 0 0 0 1 5 1 0 0 0 0 7 1979 0 0 0 0 0 0 9 0 0 0 0 0 9 1980 0 0 0 0 0 1 5 3 0 0 0 0 9 1981 0 0 0 0 0 0 6 0 0 0 0 0 6 1982 0 0 0 0 0 0 5 1 0 0 0 0 6 1983 0 0 0 0 0 1 14 12 0 0 0 0 27 1984 0 0 0 0 0 0 2 5 0 0 0 0 7 1985 0 0 0 0 0 5 15 0 0 0 0 0 20 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 0 0 0 0 1 7 3 3 0 0 0 14 1988 0 0 0 0 0 3 8 1 0 0 0 0 12 1989 0 0 0 0 0 3 11 2 0 0 *** 0 *** 1990 0 0 0 0 0 2 9 6 0 0 0 0 17 1991 0 0 0 0 0 0 2 3 0 0 0 0 5 1992 0 0 0 0 0 0 10 0 0 0 0 0 10 1993 0 0 0 0 0 1 1 0 0 0 0 0 2 1994 0 0 0 0 *** *** 13 5 0 0 0 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 0 0 0 0 1 0 0 0 0 *** 1997 0 0 0 0 0 0 12 2 0 0 0 0 14 1998 0 0 0 0 0 0 4 1 0 0 0 0 5 1999 0 0 0 0 0 0 3 1 0 0 0 0 4 2000 0 0 0 0 0 2 *** 2 0 0 0 0 *** 2001 0 0 0 *** 0 4 4 5 0 0 0 0 *** 2002 *** 0 0 0 0 0 2 5 0 *** 0 0 *** 2003 0 0 0 0 0 0 14 0 0 0 0 0 14 MEAN 0 0 0 0 0 1 7 2 0 0 0 0 10 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR MORE THAN 45 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1965 0 0 0 *** 0 0 0 0 0 *** *** 0 *** 1966 0 *** *** *** 0 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** 0 0 0 *** 1968 0 0 0 0 *** *** *** 0 0 0 0 *** *** 1969 0 0 0 0 0 0 *** 0 0 0 0 0 *** 1970 0 0 0 0 0 0 0 0 0 0 0 0 0 1971 0 0 *** *** *** *** *** *** 0 0 0 0 *** 1972 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 0 0 0 0 0 0 0 0 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 0 0 0 0 0 0 0 0 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 0 0 0 0 0 0 0 0 0 0 0 0 0 1983 0 0 0 0 0 0 0 0 0 0 0 0 0 1984 0 0 0 0 0 0 0 0 0 0 0 0 0 1985 0 0 0 0 0 0 0 0 0 0 0 0 0 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 0 0 *** 0 *** 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 0 *** *** 0 0 0 0 0 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 0 0 0 0 0 0 0 0 0 *** 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 *** 0 0 0 0 0 *** 2001 0 0 0 *** 0 0 0 0 0 0 0 0 *** 2002 *** 0 0 0 0 0 0 0 0 *** 0 0 *** 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 24 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. NO. OF FREEZING DAYS , DATE OF START AND END FREEZING START END YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MO DAY MO DAY -------------- 1964 *** 17 0 0 0 0 0 0 0 0 4 30 *** 11 27 2 22 1965 31 23 0 *** 0 0 0 0 0 *** *** 14 *** 12 16 2 28 1966 28 *** 0 0 0 *** *** *** *** *** *** *** *** 1 1 1 30 1967 *** *** *** *** *** *** *** *** *** 0 4 11 *** 11 27 12 30 1968 22 15 0 0 *** *** *** 0 0 0 1 *** *** 11 19 2 15 1969 29 6 1 1 0 0 *** 0 0 0 5 18 *** 11 10 4 15 1970 13 11 2 0 0 0 0 0 0 0 0 17 43 12 10 3 25 1971 31 18 *** *** *** *** *** *** 0 0 0 13 *** 12 11 2 26 1972 31 28 26 1 0 0 0 0 0 0 9 30 125 11 20 4 4 1973 31 22 4 0 0 0 0 0 0 0 8 31 96 11 19 3 25 1974 30 17 6 0 0 0 0 0 0 0 1 27 81 11 28 3 11 1975 29 16 8 0 0 0 0 0 0 0 14 27 94 11 6 3 12 1976 23 22 *** *** 0 0 0 0 0 0 4 13 *** 11 15 2 29 1977 30 14 0 0 0 0 0 0 0 0 3 12 59 11 18 2 27 1978 20 10 1 0 0 0 0 0 0 0 13 8 52 11 3 3 17 1979 16 9 5 0 0 0 0 0 0 0 2 9 41 11 21 3 6 1980 28 14 6 0 0 0 0 0 0 0 0 9 57 12 9 3 22 1981 17 14 2 2 0 0 0 0 0 0 1 1 37 11 25 4 6 1982 17 19 7 0 0 0 0 0 0 0 3 22 68 11 14 3 27 1983 28 14 6 1 0 0 0 0 0 0 0 14 63 12 12 4 2 1984 12 19 1 0 0 0 0 0 0 1 0 22 55 10 21 3 17 1985 15 12 12 0 0 0 0 0 0 0 0 7 46 12 5 3 15 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1987 15 7 3 2 0 0 0 0 0 0 1 7 35 11 30 4 8 1988 13 12 3 2 0 0 0 0 0 0 3 10 43 11 15 4 6 1989 31 25 1 0 0 0 0 0 0 0 *** 12 *** 12 6 3 31 1990 23 19 6 0 0 0 0 0 0 0 1 15 64 11 14 3 22 1991 18 19 2 0 0 0 0 0 0 0 4 21 64 11 15 3 12 1992 31 29 30 15 *** 0 0 0 0 0 3 10 *** 11 27 4 28 1993 26 14 4 0 0 0 0 0 0 0 4 7 55 11 15 3 23 1994 22 14 1 0 *** *** 0 0 0 0 0 *** *** 1 6 3 17 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1996 *** *** *** 1 0 0 0 *** 0 0 0 9 *** 12 1 4 4 1997 11 18 5 0 0 0 0 0 0 0 0 7 41 12 22 3 21 1998 16 12 5 0 0 0 0 0 0 0 0 1 34 12 6 3 6 1999 15 4 0 0 0 0 0 0 0 0 1 5 25 11 30 2 22 2000 18 11 4 0 0 0 *** 0 0 0 0 6 *** 12 13 3 16 2001 19 9 0 *** 0 0 0 0 0 0 2 4 *** 11 20 2 23 2002 *** 8 1 0 0 0 0 0 0 *** 0 14 *** 12 6 3 7 2003 10 5 4 0 0 0 0 0 0 0 3 11 33 11 19 3 5 MEAN 22 15 5 1 0 0 0 0 0 0 3 14 60 10 21 4 28 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** 6.9 14.7 15.8 25.5 30.6 32.8 31.4 27.7 21.2 10.0 2.7 ****** 1965 1.0 4.2 12.6 ****** 24.9 29.0 31.8 30.7 26.0 ****** ****** 6.6 ****** 1966 5.5 ****** 15.7 18.1 23.0 ****** ****** ****** ****** ****** ****** ****** ****** 1967 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1968 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1969 ****** ****** 12.1 16.1 23.1 25.8 ****** 26.6 23.3 17.9 10.1 5.3 ****** 1970 4.0 8.9 11.8 18.4 22.9 26.9 29.4 29.5 24.3 17.5 14.3 6.7 17.9 1971 3.9 5.6 ****** ****** ****** ****** ****** ****** 23.2 16.7 11.2 6.1 ****** 1972 -0.7 0.1 7.2 16.8 19.6 27.9 31.8 26.8 26.3 26.2 10.3 2.0 16.2 1973 -0.3 5.9 10.6 16.5 23.4 29.9 31.7 30.0 24.5 20.0 8.5 4.5 17.1 1974 0.6 1.5 11.0 14.9 23.9 29.2 29.4 27.6 23.8 16.5 11.8 2.9 16.1 1975 3.2 5.0 10.5 18.4 22.2 26.7 32.2 28.9 24.2 16.9 8.9 3.2 16.7 1976 5.3 3.4 6.4 15.2 21.3 28.0 30.7 29.8 25.4 17.5 9.2 5.1 16.4 1977 -1.2 6.8 14.6 16.9 21.8 29.7 30.7 29.4 25.3 16.7 11.0 6.0 17.3 1978 4.2 7.4 11.8 17.9 22.4 26.1 28.2 27.8 25.6 19.3 7.9 7.7 17.2 1979 4.5 8.0 ****** ****** ****** ****** ****** 27.4 25.2 19.5 11.6 5.2 ****** 1980 1.7 3.3 10.5 18.6 23.4 28.0 31.2 29.4 24.8 18.6 12.4 7.9 17.5 1981 5.9 7.8 13.0 17.0 22.2 27.1 29.8 28.6 24.2 17.1 12.6 8.6 17.8 1982 4.9 3.1 9.0 20.1 23.3 28.1 30.3 28.4 24.6 15.7 8.2 1.6 16.4 1983 -0.6 4.9 8.8 15.9 22.8 28.8 32.1 30.9 25.5 18.2 13.5 5.9 17.2 1984 5.7 3.9 12.7 18.4 19.7 28.9 31.9 31.6 25.3 17.6 11.9 1.5 17.4 1985 4.6 7.0 8.9 18.2 24.0 30.0 31.3 28.3 26.3 18.4 13.0 6.9 18.1 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 8.0 10.4 12.2 17.8 25.0 30.6 30.9 31.0 30.9 16.5 13.7 7.5 19.5 1988 5.4 6.8 12.9 19.0 25.1 29.7 30.8 30.0 25.8 19.8 12.9 7.6 18.8 1989 1.0 1.7 11.4 19.4 23.2 29.7 31.9 31.3 25.6 20.0 ****** 8.0 ****** 1990 2.8 5.3 11.8 17.9 24.3 29.7 32.0 31.1 26.9 18.7 13.9 6.2 18.4 1991 4.2 4.4 9.9 17.9 21.2 27.6 31.0 29.8 25.4 19.7 13.2 6.3 17.6 1992 1.5 4.9 7.2 15.5 18.9 27.3 31.9 29.0 25.1 19.8 13.0 5.7 16.6 1993 2.7 6.3 10.2 18.2 22.2 27.8 29.5 29.0 26.7 17.8 9.0 6.7 17.2 1994 5.9 6.5 12.3 18.2 ****** ****** 30.8 30.3 23.9 19.5 15.4 ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** 15.5 ****** ****** ****** ****** 26.8 18.2 10.9 8.1 ****** 1997 6.5 5.2 9.3 17.6 23.0 28.8 32.0 31.2 24.5 20.6 10.8 6.2 18.0 1998 3.0 5.3 10.4 18.3 22.5 29.7 31.5 29.7 25.7 18.8 14.2 9.9 18.2 1999 5.5 9.5 10.0 18.0 24.6 29.9 29.8 30.7 24.4 20.3 9.8 7.0 18.3 2000 4.7 6.4 9.8 20.6 25.5 28.9 ****** 29.8 25.5 16.8 9.6 6.0 ****** 2001 4.5 7.0 12.0 ****** 24.0 29.1 30.5 30.0 25.4 18.9 11.4 8.2 ****** 2002 ****** 8.5 12.8 15.6 22.8 28.3 30.4 29.6 26.5 ****** 11.8 4.0 ****** 2003 5.8 7.2 10.1 16.2 21.1 27.9 32.1 29.4 23.6 20.7 10.6 5.7 17.5 MEAN 3.6 5.7 11.0 17.5 22.9 28.6 31.0 29.5 25.4 18.7 11.4 5.9 17.6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** -3.3 1.7 0.0 6.3 14.0 16.6 16.2 13.2 8.7 -2.5 -7.3 ****** 1965 -8.0 -4.7 -2.0 ****** 3.0 8.0 14.7 16.0 13.7 ****** ****** -0.6 ****** 1966 1.7 ****** 4.4 6.6 11.6 ****** ****** ****** ****** ****** ****** ****** ****** 1967 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1968 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1969 ****** ****** 5.3 6.8 9.9 11.4 ****** 11.2 9.9 5.6 1.0 -1.5 ****** 1970 -1.8 -1.8 0.2 4.6 9.0 10.3 13.8 14.4 9.4 5.0 3.0 -1.3 5.4 1971 -3.9 -2.9 ****** ****** ****** ****** ****** ****** 5.7 1.9 3.3 -1.2 ****** 1972 -3.4 -2.5 2.7 5.5 11.7 8.3 6.7 16.7 16.4 16.7 3.6 -2.1 6.7 1973 -4.6 0.1 -0.2 2.7 5.9 7.9 11.2 12.1 9.3 3.3 -0.5 -6.4 3.4 1974 -3.1 -2.0 4.2 1.7 6.0 9.5 12.4 11.3 8.4 2.1 1.6 -1.6 4.2 1975 -1.4 -0.4 1.3 5.5 8.0 8.4 10.5 11.0 7.8 2.8 -0.3 -1.4 4.3 1976 -1.3 -4.0 0.8 5.0 8.5 10.0 11.6 9.2 6.9 5.7 -0.6 -0.6 4.3 1977 -3.1 -0.9 -1.3 5.0 9.3 7.0 10.9 10.3 9.1 7.7 3.7 0.6 4.9 1978 -1.6 -0.6 0.2 0.3 5.0 7.3 12.2 9.7 7.6 6.4 -0.5 1.3 3.9 1979 -0.4 1.2 ****** ****** ****** ****** ****** 9.0 5.8 5.8 -0.8 0.4 ****** 1980 -2.4 -0.8 0.2 3.5 7.8 10.0 10.2 11.7 5.9 3.5 3.8 -1.7 4.3 1981 -2.1 -2.5 -0.1 3.6 6.1 10.9 12.8 12.3 5.9 4.9 -2.0 -0.3 4.1 1982 -1.9 -4.8 -0.7 4.3 8.4 8.7 9.3 10.1 7.2 7.1 3.2 -2.3 4.0 1983 ****** -3.2 0.0 4.8 9.5 9.8 9.2 10.9 8.6 2.0 2.0 1.6 ****** 1984 -2.0 -3.1 0.7 2.7 4.7 7.3 10.3 10.9 6.8 0.2 3.2 -4.1 3.1 1985 -0.5 -3.7 -0.8 3.9 6.3 8.5 10.2 9.4 6.1 3.3 3.8 -0.5 3.8 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 -3.6 -1.7 1.6 1.3 8.3 9.1 11.0 11.4 11.6 5.2 3.7 0.2 4.8 1988 -1.3 -1.8 0.9 8.3 8.5 14.2 17.1 16.0 9.8 5.9 0.1 -1.4 6.4 1989 -4.6 -3.4 6.2 9.1 10.1 12.8 15.3 13.8 10.1 6.7 ****** 1.1 ****** 1990 -2.4 -0.2 3.0 7.5 12.4 16.6 19.3 18.1 15.4 8.1 4.2 -0.8 8.4 1991 -0.7 -1.8 4.2 8.2 10.5 13.9 12.4 13.9 11.5 8.4 2.8 0.8 7.0 1992 -3.7 -3.8 -0.1 7.1 15.1 20.2 23.3 22.2 17.8 11.1 5.2 -2.3 9.3 1993 -3.8 -0.7 3.3 10.9 12.4 14.7 18.4 20.1 17.3 6.1 2.5 0.2 8.5 1994 1.5 -1.0 6.2 12.0 ****** ****** 24.2 19.9 17.7 12.7 3.7 ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** 14.0 ****** ****** ****** ****** 12.6 6.5 1.1 0.5 ****** 1997 -1.2 1.5 -0.1 2.6 8.2 11.5 13.6 12.3 8.3 5.4 3.8 1.7 5.6 1998 -1.0 -1.5 1.8 6.3 8.4 10.0 14.3 14.1 10.8 6.2 3.6 3.1 6.3 1999 -0.8 -1.6 0.7 3.5 6.6 9.7 14.3 12.7 10.9 6.1 3.4 1.5 5.6 2000 -2.4 -2.1 -2.1 6.3 8.0 10.2 ****** 14.2 12.4 7.8 3.0 3.0 ****** 2001 -0.9 -1.1 2.6 ****** 8.2 11.4 13.8 13.4 11.1 7.0 2.7 3.3 ****** 2002 ****** -1.3 -0.1 7.0 7.2 9.3 13.0 14.8 11.2 ****** 4.3 -1.2 ****** 2003 -0.4 -0.2 2.2 8.1 7.9 11.4 15.2 14.3 10.4 6.8 1.0 0.5 6.4 MEAN -2.1 -1.8 1.4 5.6 8.4 10.7 13.6 13.4 10.4 6.1 2.1 -0.6 5.6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** 3.46 4.96 4.35 6.91 11.37 13.36 13.06 10.77 8.09 3.58 2.68 ****** 1965 2.55 3.14 3.70 ****** 5.34 7.55 11.89 12.90 11.44 ****** ****** 4.46 ****** 1966 5.29 ****** 5.86 6.88 9.76 ****** ****** ****** ****** ****** ****** ****** ****** 1967 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1968 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1969 ****** ****** 6.72 7.21 8.59 9.55 ****** 9.43 8.64 6.45 4.66 3.85 ****** 1970 3.81 3.82 4.38 6.03 8.32 8.86 11.14 11.59 8.36 6.24 5.39 4.02 6.83 1971 3.26 3.50 ****** ****** ****** ****** ****** ****** 6.61 5.01 5.53 4.01 ****** 1972 3.39 3.73 5.32 6.85 9.98 8.25 6.97 13.77 13.35 13.80 6.08 3.80 7.94 1973 3.09 4.45 4.35 5.42 6.84 7.73 9.52 10.07 8.39 5.52 4.27 2.83 6.04 1974 3.46 3.81 6.19 5.01 6.72 8.53 10.24 9.48 7.80 5.18 4.85 3.87 6.26 1975 3.95 4.31 4.88 6.48 7.68 7.94 8.98 9.26 7.52 5.37 4.28 4.01 6.22 1976 4.03 3.33 4.66 6.25 8.03 8.74 9.76 8.38 7.16 6.48 4.33 4.17 6.28 1977 3.50 4.10 4.15 6.33 8.33 7.45 9.25 8.90 8.17 7.51 5.66 4.61 6.50 1978 3.86 4.19 4.41 4.59 6.21 7.36 10.06 8.51 7.40 6.80 4.26 4.94 6.05 1979 4.24 4.84 ****** ****** ****** ****** ****** 8.17 6.63 6.59 4.42 4.49 ****** 1980 3.65 4.11 4.61 5.79 7.52 8.80 8.84 9.68 6.72 5.83 5.73 3.91 6.26 1981 3.75 3.77 4.52 5.82 6.81 9.41 10.48 10.34 6.72 6.18 3.90 4.28 6.33 1982 3.83 3.24 4.21 5.93 7.95 8.05 8.35 9.02 7.32 7.19 5.48 3.71 6.19 1983 ****** 3.51 4.42 6.12 8.45 8.66 8.45 9.28 7.97 5.07 5.06 4.95 ****** 1984 3.81 3.56 4.63 5.37 6.24 7.22 8.78 9.32 7.14 4.60 5.47 3.30 5.79 1985 4.34 3.40 4.24 5.73 6.85 7.91 8.83 8.37 6.77 5.57 5.73 4.20 6.00 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 3.57 3.98 5.01 4.92 7.81 8.27 9.38 9.64 9.76 6.42 5.81 4.49 6.59 1988 3.94 3.87 5.06 7.92 7.92 11.63 14.04 13.05 8.71 6.73 4.69 3.98 7.63 1989 3.13 3.45 6.82 8.33 9.00 10.77 12.68 11.42 9.17 7.13 ****** 4.78 ****** 1990 3.69 4.28 5.43 7.41 10.37 14.03 16.35 15.09 12.86 7.68 5.98 4.21 8.95 1991 4.15 3.96 5.98 7.92 9.13 11.65 10.76 11.78 9.87 7.86 5.42 4.76 7.77 1992 3.37 3.44 4.63 7.28 12.75 17.45 20.98 19.53 14.88 9.42 6.48 3.95 10.35 1993 3.36 4.19 5.57 9.36 10.25 12.04 15.09 16.90 14.24 6.88 5.49 4.43 8.98 1994 4.88 4.19 6.90 10.42 ****** ****** 23.35 17.11 15.00 10.60 5.85 ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** 11.76 ****** ****** ****** ****** 10.48 6.95 4.77 4.53 ****** 1997 3.98 5.14 4.37 5.48 8.12 9.68 11.08 10.25 7.77 6.34 5.70 4.92 6.90 1998 4.05 3.93 5.13 6.97 7.90 8.80 11.87 11.40 9.23 6.71 5.61 5.36 7.25 1999 4.18 3.93 4.55 5.73 7.02 8.63 11.68 10.51 9.26 6.65 5.60 4.86 6.88 2000 3.72 3.77 3.83 6.99 7.90 8.94 ****** 11.51 10.12 7.47 5.47 5.38 ****** 2001 4.03 4.00 5.21 ****** 7.85 9.68 11.25 11.05 9.37 7.14 5.31 5.56 ****** 2002 ****** 3.93 4.46 7.18 7.27 8.50 10.76 11.91 9.41 ****** 5.95 4.07 ****** 2003 4.21 4.30 5.17 7.77 7.59 9.65 12.36 11.59 8.99 6.99 4.74 4.58 7.33 MEAN 3.81 3.90 4.98 6.74 8.04 9.45 11.55 11.28 9.26 6.92 5.20 4.29 7.12 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** 4.96 7.13 6.26 9.94 16.26 19.07 18.65 15.41 11.59 5.14 3.85 ****** 1965 3.65 4.50 5.32 ****** 7.70 10.86 17.00 18.42 16.33 ****** ****** 6.39 ****** 1966 7.55 ****** 8.42 9.86 13.95 ****** ****** ****** ****** ****** ****** ****** ****** 1967 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1968 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1969 ****** ****** 9.61 10.32 12.31 13.67 ****** 13.51 12.39 9.26 6.69 5.52 ****** 1970 5.46 5.49 6.29 8.66 11.92 12.70 15.94 16.57 11.99 8.95 7.73 5.76 9.79 1971 4.68 5.02 ****** ****** ****** ****** ****** ****** 9.50 7.20 7.92 5.75 ****** 1972 4.85 5.34 7.62 9.80 14.23 11.82 10.04 19.58 19.01 19.62 8.69 5.44 11.34 1973 4.43 6.37 6.24 7.78 9.82 11.10 13.66 14.42 12.03 7.93 6.13 4.06 8.66 1974 4.95 5.46 8.85 7.20 9.65 12.24 14.66 13.59 11.19 7.44 6.96 5.55 8.98 1975 5.66 6.17 7.00 9.30 11.02 11.40 12.90 13.29 10.80 7.71 6.14 5.74 8.93 1976 5.77 4.77 6.67 8.97 11.50 12.53 13.99 12.03 10.29 9.30 6.21 5.98 9.00 1977 5.01 5.88 5.97 9.08 11.93 10.70 13.27 12.77 11.73 10.75 8.11 6.60 9.32 1978 5.53 6.01 6.33 6.60 8.93 10.57 14.41 12.22 10.63 9.75 6.10 7.07 8.68 1979 6.08 6.94 ****** ****** ****** ****** ****** 11.73 9.53 9.46 6.34 6.43 ****** 1980 5.22 5.89 6.61 8.31 10.79 12.62 12.69 13.87 9.66 8.36 8.21 5.61 8.99 1981 5.37 5.41 6.48 8.35 9.78 13.48 15.01 14.78 9.65 8.86 5.61 6.13 9.08 1982 5.49 4.65 6.05 8.52 11.39 11.55 11.99 12.93 10.51 10.29 7.85 5.31 8.88 1983 ****** 5.03 6.34 8.78 12.11 12.42 12.14 13.32 11.43 7.30 7.26 7.09 ****** 1984 5.46 5.10 6.64 7.72 8.96 10.39 12.62 13.38 10.26 6.61 7.84 4.73 8.31 1985 6.22 4.87 6.08 8.24 9.85 11.37 12.68 12.02 9.74 8.01 8.22 6.03 8.61 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 5.12 5.71 7.18 7.07 11.21 11.88 13.45 13.82 13.99 9.20 8.33 6.43 9.45 1988 5.65 5.55 7.25 11.34 11.37 16.62 19.98 18.60 12.48 9.65 6.73 5.71 10.91 1989 4.49 4.94 9.76 11.92 12.88 15.40 18.09 16.32 13.12 10.22 ****** 6.85 ****** 1990 5.29 6.13 7.79 10.62 14.81 19.94 23.19 21.44 18.30 11.00 8.58 6.03 12.76 1991 5.94 5.67 8.56 11.33 13.05 16.62 15.37 16.80 14.12 11.25 7.77 6.82 11.11 1992 4.83 4.94 6.63 10.41 18.10 24.66 29.51 27.54 21.10 13.46 9.27 5.67 14.68 1993 4.81 6.01 7.97 13.37 14.64 17.17 21.45 23.94 20.24 9.86 7.86 6.35 12.81 1994 6.99 6.01 9.87 14.85 ****** ****** 32.61 24.20 21.24 15.11 8.39 ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** 16.70 ****** ****** ****** ****** 14.98 9.96 6.84 6.50 ****** 1997 5.71 7.34 6.27 7.87 11.61 13.86 15.86 14.68 11.16 9.11 8.16 7.05 9.89 1998 5.79 5.63 7.35 9.98 11.32 12.63 16.94 16.30 13.22 9.63 8.05 7.68 10.38 1999 5.99 5.64 6.53 8.22 10.08 12.39 16.69 15.05 13.26 9.55 8.01 6.96 9.86 2000 5.34 5.40 5.50 10.03 11.33 12.82 ****** 16.45 14.48 10.69 7.83 7.70 ****** 2001 5.77 5.74 7.47 ****** 11.26 13.87 16.08 15.79 13.41 10.23 7.62 7.95 ****** 2002 ****** 5.64 6.40 10.28 10.44 12.19 15.38 17.01 13.48 ****** 8.52 5.83 ****** 2003 6.03 6.16 7.41 11.11 10.89 13.82 17.65 16.57 12.87 10.03 6.79 6.56 10.49 MEAN 5.46 5.59 7.14 9.65 11.52 13.53 16.48 16.11 13.24 9.92 7.45 6.15 10.19 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** 5.45 10.25 12.66 23.82 28.61 32.61 29.59 23.38 14.89 7.57 3.89 ****** 1965 3.09 3.93 9.90 ****** 25.28 30.74 32.25 28.10 19.50 ****** ****** 4.26 ****** 1966 1.97 ****** 9.86 11.50 15.05 ****** ****** ****** ****** ****** ****** ****** ****** 1967 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1968 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1969 ****** ****** 4.86 8.82 17.05 22.27 ****** 23.43 17.72 12.06 6.14 3.63 ****** 1970 2.93 6.60 8.36 13.94 18.38 25.38 27.57 27.06 20.75 12.50 9.44 4.56 14.79 1971 3.97 4.59 ****** ****** ****** ****** ****** ****** 21.32 13.29 5.89 4.24 ****** 1972 1.08 1.15 3.04 10.44 9.37 27.91 38.40 17.04 16.25 16.03 4.91 1.87 12.29 1973 1.66 3.55 7.36 12.27 20.63 33.58 35.96 30.00 20.91 16.81 5.43 4.74 16.08 1974 1.53 1.62 5.44 11.09 21.96 30.71 28.46 25.21 19.80 12.71 7.83 2.30 14.05 1975 2.25 2.95 6.55 12.80 17.34 25.46 37.53 29.22 21.42 13.28 5.94 2.13 14.74 1976 3.48 3.33 3.55 9.15 14.87 27.26 32.22 31.91 24.07 11.84 6.01 3.18 14.24 1977 0.75 4.75 11.61 10.98 15.45 33.30 33.12 30.51 22.23 10.08 5.62 3.22 15.13 1978 3.14 4.78 8.31 15.03 20.08 25.30 25.76 27.02 24.34 13.83 4.99 3.76 14.69 1979 2.83 4.15 ****** ****** ****** ****** ****** 26.49 24.69 14.61 8.22 3.02 ****** 1980 2.05 2.30 6.99 14.23 19.33 26.90 34.57 29.19 23.68 14.75 6.77 5.51 15.52 1981 4.47 5.59 9.26 12.32 18.47 24.13 28.87 25.98 22.61 11.54 9.90 5.65 14.90 1982 3.86 3.59 5.90 16.26 18.49 28.35 32.85 27.32 21.83 8.42 3.52 1.88 14.36 1983 ****** 4.38 6.08 10.24 16.83 29.03 37.60 33.80 22.84 14.79 9.08 3.92 ****** 1984 4.13 3.52 8.69 14.61 15.28 32.06 37.38 35.87 24.11 14.91 6.71 2.21 16.62 1985 2.82 5.78 6.96 13.82 21.75 33.80 35.80 28.13 26.50 14.35 7.35 4.35 16.78 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 6.20 7.41 7.52 14.49 21.71 33.18 32.91 33.04 32.53 10.57 8.14 4.29 17.67 1988 3.58 4.93 8.30 12.10 22.42 26.47 26.46 25.42 22.74 14.55 9.29 5.39 15.14 1989 2.31 2.31 4.28 11.43 17.17 27.80 30.66 30.83 22.36 14.99 ****** 4.24 ****** 1990 2.37 3.17 6.92 10.92 17.29 23.67 25.79 25.53 19.37 11.77 8.28 4.22 13.28 1991 2.50 3.18 4.22 10.30 13.50 21.99 31.12 27.03 20.32 12.42 8.02 3.19 13.15 1992 2.26 4.13 4.12 8.19 5.31 13.48 19.83 13.78 12.08 10.56 6.60 3.87 8.68 1993 2.99 3.89 4.98 8.56 13.57 22.30 22.04 18.36 17.05 11.37 4.19 3.81 11.09 1994 2.64 4.16 5.16 7.54 ****** ****** 14.36 21.63 10.26 8.48 9.67 ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** 1.83 ****** ****** ****** ****** 22.60 12.03 6.96 4.72 ****** 1997 4.40 2.10 6.05 13.96 18.02 27.49 34.28 33.34 21.58 16.40 5.21 2.69 15.46 1998 1.98 3.76 5.97 12.36 17.62 31.20 30.90 27.01 21.51 13.54 8.99 4.83 14.97 1999 3.39 6.76 6.29 13.30 22.31 31.38 27.24 30.83 19.64 15.97 4.61 3.41 15.43 2000 3.56 4.75 7.34 15.28 22.74 29.32 ****** 27.02 19.96 9.40 4.59 1.81 ****** 2001 3.21 4.80 7.36 ****** 20.29 29.05 29.52 28.77 20.88 12.82 6.73 3.19 ****** 2002 ****** 6.16 9.42 8.21 19.03 27.91 29.63 26.55 23.04 ****** 6.05 2.50 ****** 2003 3.58 4.31 5.42 8.34 15.38 25.67 32.77 26.37 18.13 15.74 6.78 2.93 13.78 MEAN 2.93 4.18 6.86 11.47 17.99 27.60 30.61 27.31 21.20 13.07 6.83 3.63 14.47 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 51 43 37 31 38 39 41 42 45 43 51 *** 1965 55 56 39 *** 25 27 36 42 49 *** *** 62 *** 1966 80 *** 48 48 50 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** *** *** *** *** 1968 *** *** *** *** *** *** *** *** *** *** *** *** *** 1969 *** *** 66 57 46 45 *** 42 45 46 55 64 *** 1970 67 50 48 43 44 39 41 42 42 45 48 59 47 1971 60 57 *** *** *** *** *** *** 37 42 62 64 *** 1972 83 83 75 51 62 33 22 54 55 57 65 75 60 1973 74 69 50 44 37 29 32 37 42 37 57 51 47 1974 78 80 66 48 35 34 39 40 41 42 54 75 53 1975 74 72 57 47 44 36 30 36 39 44 57 75 51 1976 66 63 70 54 48 36 35 31 35 49 54 70 51 1977 88 63 38 51 49 30 33 35 40 60 64 71 52 1978 69 61 50 35 36 34 39 36 36 46 59 68 47 1979 74 65 *** *** *** *** *** 35 33 45 48 73 *** 1980 76 75 54 42 40 36 31 36 34 44 59 56 49 1981 61 54 46 45 40 39 39 40 35 49 42 57 46 1982 65 63 56 39 44 34 31 36 38 61 73 78 52 1983 *** 60 56 52 47 35 28 33 38 38 51 69 *** 1984 63 63 46 39 43 29 29 31 35 36 59 73 46 1985 73 51 54 42 36 31 31 34 31 40 59 62 45 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 53 49 53 37 38 29 33 34 34 52 55 63 44 1988 65 60 52 54 40 41 47 47 41 46 46 57 50 1989 69 71 72 54 48 39 40 38 41 46 *** 65 *** 1990 72 71 58 53 50 49 50 50 53 53 56 64 57 1991 74 69 70 56 55 48 35 42 46 51 53 71 56 1992 73 61 65 61 80 67 62 68 65 60 64 64 66 1993 67 65 64 65 56 47 54 61 59 50 67 68 60 1994 76 63 68 69 *** *** 71 57 70 67 51 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 91 *** *** *** *** 44 50 54 62 *** 1997 61 82 55 40 43 38 37 35 39 40 65 75 51 1998 77 65 60 49 44 33 39 42 43 48 53 65 52 1999 67 49 57 41 35 32 42 36 46 44 68 71 49 2000 63 59 47 43 37 35 *** 41 48 60 67 83 *** 2001 71 60 57 *** 41 38 39 41 44 50 58 74 *** 2002 *** 54 45 60 41 34 38 44 42 *** 64 72 *** 2003 68 63 61 63 46 40 40 43 48 44 55 72 54 MEAN 70 63 56 50 44 37 39 41 43 48 57 67 51 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 68 56 55 40 47 49 53 53 55 58 66 *** 1965 73 78 51 *** 35 34 45 54 59 *** *** 74 *** 1966 89 *** 55 54 57 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** *** *** *** *** 1968 *** *** *** *** *** *** *** *** *** *** *** *** *** 1969 *** *** 77 71 59 63 *** 58 59 58 67 81 *** 1970 78 68 64 58 57 56 55 59 58 55 58 73 62 1971 75 75 *** *** *** *** *** *** 54 63 77 80 *** 1972 90 89 83 58 67 42 26 59 61 64 71 80 66 1973 79 79 67 63 59 46 53 52 60 56 70 71 63 1974 88 90 83 67 57 56 61 60 58 58 76 89 70 1975 89 89 75 64 66 60 48 53 59 69 77 89 70 1976 84 82 87 73 73 55 57 46 51 67 71 85 69 1977 94 79 56 72 69 51 54 52 59 80 83 86 70 1978 85 80 71 56 57 55 54 54 53 62 76 84 66 1979 85 83 *** *** *** *** *** 53 49 66 66 87 *** 1980 92 92 76 60 59 56 47 53 53 63 78 74 67 1981 84 78 63 66 57 56 58 59 51 70 62 77 65 1982 86 90 76 56 67 54 47 51 56 82 89 94 71 1983 *** 86 79 73 69 55 43 52 59 56 71 87 *** 1984 84 82 62 58 66 46 45 45 55 51 74 93 63 1985 89 73 74 61 54 49 52 51 44 55 76 78 63 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 78 69 73 52 56 42 48 55 55 70 70 80 62 1988 82 78 72 75 64 55 65 70 58 66 68 73 69 1989 82 85 86 68 63 54 57 54 57 64 *** 83 *** 1990 87 85 73 68 68 68 65 65 70 68 76 81 73 1991 88 87 84 70 76 65 50 58 60 69 73 86 72 1992 90 84 82 78 90 77 74 77 76 76 85 85 81 1993 83 83 79 82 72 62 70 75 75 67 85 87 77 1994 87 84 81 82 *** *** 83 75 83 86 81 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 94 *** *** *** *** 61 67 72 78 *** 1997 77 90 74 57 62 57 60 53 58 56 80 87 68 1998 92 85 77 72 65 53 56 59 59 67 71 79 70 1999 86 65 77 58 51 48 61 51 67 62 86 88 67 2000 78 79 64 61 55 55 *** 55 68 79 85 93 *** 2001 88 78 72 *** 59 56 56 59 59 70 74 87 *** 2002 *** 74 63 76 60 50 57 62 57 *** 82 89 *** 2003 84 82 79 78 64 59 60 62 67 61 73 88 71 MEAN 85 81 72 67 62 54 55 57 59 65 75 83 68 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 37 33 26 22 30 31 32 33 37 31 35 *** 1965 35 38 29 *** 18 22 30 34 39 *** *** 50 *** 1966 70 *** 39 40 41 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** *** *** *** *** 1968 *** *** *** *** *** *** *** *** *** *** *** *** *** 1969 *** *** 54 44 29 22 *** 24 31 33 46 50 *** 1970 56 36 33 31 30 23 27 27 27 35 39 47 34 1971 45 43 *** *** *** *** *** *** 18 22 46 45 *** 1972 75 76 67 44 57 26 16 50 49 51 58 69 53 1973 69 61 35 25 18 15 18 23 23 22 43 33 32 1974 65 70 50 32 20 19 24 25 28 21 33 56 37 1975 58 54 39 31 28 19 18 23 21 24 37 58 34 1976 48 44 55 39 28 22 21 17 21 35 37 51 35 1977 78 45 22 34 32 15 20 19 23 40 43 54 35 1978 49 43 32 18 20 19 30 21 20 30 42 51 31 1979 61 47 *** *** *** *** *** 20 17 27 29 56 *** 1980 58 60 33 25 25 21 18 22 18 26 39 33 32 1981 40 32 29 28 25 26 25 24 18 30 21 37 28 1982 43 38 40 23 27 19 17 20 19 40 53 55 33 1983 *** 34 40 33 30 20 15 19 21 21 32 44 *** 1984 39 46 34 26 26 19 20 21 19 19 42 45 30 1985 53 34 38 28 21 17 18 21 17 25 39 44 30 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 20 23 32 24 22 18 20 19 20 35 39 46 27 1988 48 41 32 36 23 26 31 27 24 26 27 39 32 1989 50 57 57 35 29 22 23 21 23 28 *** 47 *** 1990 52 56 44 38 34 31 35 32 30 37 35 47 39 1991 57 51 54 40 34 31 22 23 28 33 35 55 39 1992 50 32 47 43 68 54 50 58 55 41 36 32 47 1993 46 39 47 46 43 32 36 44 42 30 47 41 41 1994 61 44 55 56 *** *** 56 42 56 53 33 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 88 *** *** *** *** 32 35 37 47 *** 1997 47 71 41 27 28 26 23 23 26 26 49 61 37 1998 62 49 47 33 30 20 26 27 27 30 35 50 36 1999 51 35 41 28 21 21 27 23 29 28 51 53 34 2000 48 43 32 29 23 21 *** 27 28 41 50 70 *** 2001 53 43 43 *** 24 22 24 24 27 32 42 59 *** 2002 *** 37 30 45 26 20 24 29 25 *** 47 54 *** 2003 50 48 46 49 30 23 24 27 28 27 36 56 37 MEAN 53 46 41 36 29 23 26 27 27 32 40 49 36 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. NO. OF DAYS PRECIPITATION EQUAL OR MORE THAN 5 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 2 0 1 0 0 0 0 0 0 1 2 *** 1965 8 1 6 *** 0 0 0 0 1 *** *** 0 *** 1966 2 *** 1 1 1 *** *** *** *** *** *** *** *** 1967 *** *** *** *** *** *** *** *** *** 1 2 1 *** 1968 2 1 2 4 *** *** *** 0 0 1 4 *** *** 1969 7 1 4 1 0 0 *** 0 0 3 0 2 *** 1970 2 0 1 1 0 0 0 0 0 0 0 0 4 1971 0 1 *** *** *** *** *** *** 0 0 2 0 *** 1972 1 7 10 3 4 1 0 3 0 1 3 4 37 1973 1 2 1 1 0 0 0 0 0 0 1 2 8 1974 6 7 1 1 0 1 2 0 0 0 0 4 22 1975 3 4 3 1 1 1 0 0 0 0 1 4 18 1976 2 3 3 4 4 1 0 0 0 2 1 5 25 1977 3 0 0 4 1 0 0 1 0 4 1 2 16 1978 1 2 5 0 0 0 0 0 0 0 2 2 12 1979 3 2 3 1 0 3 0 0 0 0 0 4 16 1980 4 5 4 3 1 0 0 0 0 0 0 1 18 1981 3 2 2 4 1 1 1 0 0 1 1 3 19 1982 1 3 2 0 1 0 0 0 0 7 4 3 21 1983 2 2 3 2 3 0 0 0 1 1 2 3 19 1984 2 1 3 1 2 0 0 0 0 0 4 4 17 1985 4 1 1 0 0 0 0 0 0 0 3 1 10 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 2 5 2 0 0 1 0 0 6 0 2 18 1988 4 3 3 3 0 0 1 0 0 1 1 2 18 1989 2 4 6 0 1 0 0 0 0 0 *** 5 *** 1990 2 5 0 3 0 0 0 0 0 2 1 1 14 1991 3 2 4 1 3 0 0 0 0 0 0 3 16 1992 1 2 4 3 3 0 0 0 0 0 1 2 16 1993 1 5 3 2 0 0 0 0 0 0 3 2 16 1994 5 2 1 2 *** *** 0 0 0 2 7 *** *** 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 *** *** *** 3 1 0 0 0 0 0 0 1 *** 1997 0 0 0 0 0 0 0 0 0 0 2 3 5 1998 2 2 2 0 0 0 0 0 0 0 0 2 8 1999 2 0 2 0 0 0 2 0 0 2 6 1 15 2000 1 1 1 0 0 0 *** 0 0 2 4 3 *** 2001 0 0 2 *** 1 0 0 1 0 0 1 1 *** 2002 *** 5 2 4 2 0 0 0 0 *** 2 4 *** 2003 0 3 2 6 1 0 0 0 0 0 0 1 13 MEAN 2 2 3 2 1 0 0 0 0 1 2 2 15 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. HIGHEST AND LOWEST LIMITS FOR 40 YEARS DURING 1964-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 10.0 12.4 19.0 23.0 26.8 32.2 34.0 34.0 28.0 24.6 18.2 15.2 1 YEAR - DAY 1987-31 1992-23 1977-20 1987-18 1974-24 1999-11 1975-25 1990-24 1976- 1 1997- 3 1990-12 1989- 1 LOW. DRY 03 -10.5 -12.4 -9.0 1.4 4.4 11.8 15.6 13.6 10.0 0.2 -3.0 -8.0 2 YEAR - DAY 1969- 8 1974- 4 1976- 3 1997-12 1992- 5 1978- 3 1978- 4 1977-30 1969-14 1984-21 2001-20 1974-27 HIG. WET 03 8.4 9.4 15.0 17.6 21.0 26.0 26.0 25.0 20.2 19.0 14.0 10.0 3 YEAR - DAY 1994- 4 1998- 8 1969-31 1996-21 1996-19 1990-27 1994-31 1990- 5 1987-22 1996-14 1990-12 1983- 8 LOW. WET 03 -11.5 -12.8 -9.0 -0.8 3.0 7.6 10.8 10.4 5.0 -4.0 -4.0 -9.0 4 YEAR - DAY 1969- 8 1974- 4 1976- 3 1997-12 1992- 5 1972- 8 1994- 4 1974-31 1980-23 1984-21 1967-29 1964-29 HIG. DRY 09 23.0 22.6 26.0 31.0 37.0 40.4 42.3 41.0 39.0 34.6 28.4 20.0 5 YEAR - DAY 1987-30 1987- 1 1964-26 1994-22 1970-28 1985-25 1973-13 1964-14 1987-19 1972- 7 1972- 1 1965- 1 LOW. DRY 09 -3.6 -3.6 -0.4 4.4 8.4 19.6 26.4 23.4 19.0 7.0 3.0 -1.6 6 YEAR - DAY 1972-24 1972- 9 1985- 8 1974- 1 1992- 2 2001-12 1991-13 2002-25 1999-27 1977-26 1992-27 1972-31 HIG. WET 09 17.0 12.8 19.0 26.8 30.0 30.0 38.0 31.2 29.0 26.8 21.6 14.5 7 YEAR - DAY 1966-17 1973-27 1974-24 1994-25 1976-31 1992-27 1992- 4 1984-20 1996- 1 1972- 7 1972- 2 1965- 2 LOW. WET 09 -4.0 -4.2 -1.6 3.0 7.8 12.0 14.2 14.0 10.0 6.0 -2.0 -3.0 8 YEAR - DAY 1983-12 1972- 9 1985- 8 1974- 1 1992- 2 1978- 2 1998-27 1975-18 1981-23 1977-26 1992-27 1992-30 HIG. DRY 15 16.0 17.0 23.2 30.4 37.6 39.6 40.2 39.8 38.0 32.8 27.6 15.0 9 YEAR - DAY 1987-30 2002-13 2002-27 1997-26 2002-27 1985-26 1997-24 1997-18 1987-15 1972- 7 1972- 1 1965- 1 LOW. DRY 15 -7.5 -5.8 -2.0 4.0 2.7 19.5 24.0 20.4 16.0 6.6 -2.0 -5.2 10 YEAR - DAY 1969- 7 1974- 3 1992- 9 1981- 4 1988- 8 1970-11 1987-28 1977-29 1981-23 1977-23 1992-26 1972-31 HIG. WET 15 11.4 11.2 19.8 28.6 31.0 30.0 36.6 35.2 27.8 25.6 20.8 12.0 11 YEAR - DAY 1966-19 1987- 1 1974-20 1998-13 1997-28 1990-21 1994- 7 1994- 2 1994- 6 1972-14 1972- 1 1965- 3 LOW. WET 15 -10.0 -6.2 -3.0 2.5 1.6 11.0 14.6 14.2 9.0 4.2 -4.0 -6.0 12 YEAR - DAY 1969- 7 1974- 3 1992- 9 1969-12 1988- 8 1978- 2 1972-16 1975-18 1981-23 1984-28 1992-26 1964-28 HIG. MIN. 9.0 12.0 16.0 22.5 25.0 30.5 28.5 27.5 24.0 24.5 16.0 10.0 13 YEAR - DAY 1994- 4 1999-19 2001- 9 1998-18 1999-27 1985-25 1998-12 1990- 5 1987- 5 1997- 3 1988- 9 1978-11 LOW. MIN. -18.0 -17.0 -13.0 -6.0 4.0 5.5 11.5 9.5 5.5 -1.0 -6.5 -12.0 14 YEAR - DAY 1992-29 1972-11 1992-12 1992- 3 2003- 1 1992- 5 1973- 1 1975-29 1975-24 1984-21 1991-28 1991-17 HIG. MAX. 23.5 23.0 27.0 34.0 39.5 42.5 44.5 43.5 40.0 38.0 34.0 21.0 15 YEAR - DAY 1987-30 1987- 1 1970-31 1994-23 1970-17 1974-30 1992- 1 1973- 2 1987- 4 1999- 7 1967- 2 1988- 8 LOW. MAX. -5.5 -1.0 2.0 8.0 10.5 21.0 30.5 25.0 22.5 7.5 6.0 -1.5 16 YEAR - DAY 1969- 7 1968- 3 1998- 1 1974- 1 1992- 2 2001-12 1987-28 1992-29 1999-27 1977-26 1993-30 1972-31 HIG. PPTN 50.0 41.0 40.0 33.0 18.0 11.3 21.0 12.0 8.0 40.0 37.0 31.5 17 YEAR - DAY 1969-23 1972-17 1979-26 2003-14 1992- 2 1972-14 1987-26 2001-12 1965-30 1982-28 1994-26 2000-11 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 40 YEARS DURING 1964-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 20.0 17.4 20.0 19.2 18.4 21.0 19.7 19.0 20.4 21.0 18.6 16.6 18 YEAR - DAY 1987-30 2002- 6 1976- 5 1978-22 1978- 4 1969-13 1973-29 1973- 2 1973-15 1971-16 1979-21 1978- 1 DRY 15 - DRY 09 12.0 12.0 10.0 11.0 25.9 15.5 10.0 13.0 13.5 15.0 12.6 11.5 19 YEAR - DAY 1980-20 1983-21 1975-26 1976-15 1988- 8 1969-24 1970-17 1969- 5 1970-28 2000-21 1971-29 1965-18 DRY 15 - DRY 03 13.0 13.8 16.0 18.2 16.8 19.0 17.8 18.4 19.6 18.8 12.2 13.2 20 YEAR - DAY 1987-30 1985-19 1976- 5 1994- 7 1998- 7 1984-20 1997-14 1977-30 1978-26 1989- 1 1972- 1 1978-24 WET 09 - WET 03 15.0 14.0 14.0 14.2 18.0 12.2 19.0 17.4 15.0 17.0 13.0 14.0 21 YEAR - DAY 1966-16 1972-27 1976- 5 1996-30 1976-31 1972-19 1994- 4 1984-20 1994- 5 1989-13 1979-21 1965-20 WET 15 - WET 09 10.2 9.4 6.6 13.4 14.8 9.4 10.0 11.0 12.0 10.2 10.6 10.5 22 YEAR - DAY 1966-17 2003-17 1982-19 1998-13 1988- 8 1990-27 1988-26 1981- 5 1965- 2 1994-16 1971-29 1965-18 WET 15 - WET 03 10.8 11.6 12.0 18.8 17.0 14.6 18.0 15.8 14.6 12.6 10.8 10.4 23 YEAR - DAY 1997-30 1997-16 1976- 5 1998-13 1997-28 1990-21 1994- 4 1994- 3 1994- 8 1994-16 1998-10 1992- 1 DAY BY DAY DRY 03 12.0 10.4 12.6 12.8 12.8 11.2 9.2 13.0 9.0 11.4 12.0 11.4 24 YEAR - DAY 1979- 8 1985- 7 2000-22 1985-16 1974-25 1998- 5 1983- 3 1990-25 2001-27 1985-29 1983-23 1977- 8 DAY BY DAY WET 03 10.2 10.4 11.0 9.8 12.6 6.8 9.4 7.0 8.2 9.4 10.2 9.6 25 YEAR - DAY 1979- 8 1982-27 1976- 6 1981- 4 1992-10 1988-15 1994- 5 1991-29 1977-28 1996-15 1999- 2 1975-24 DAY BY DAY DRY 09 11.4 12.2 12.8 12.0 13.8 13.0 11.8 14.0 13.0 11.2 16.0 9.4 26 YEAR - DAY 1980-21 1988- 2 1974-31 1964-10 1977-29 1964-12 1988-14 1976- 2 1987-20 1979- 6 1992-26 1973- 5 DAY BY DAY WET 09 8.8 9.4 8.2 9.0 12.0 12.0 11.8 10.2 9.6 11.0 9.0 7.4 27 YEAR - DAY 1992- 3 2003-18 2003-27 1964-10 1976-31 1976- 1 1994-19 1984-20 1994- 8 1989-13 1992-26 1991-25 DAY BY DAY DRY 15 12.8 11.0 10.8 13.2 26.7 11.0 8.2 15.0 11.0 10.0 15.0 9.2 28 YEAR - DAY 1984-29 1990-20 1998- 2 1997-15 1988- 9 1975-28 1991-11 1975-18 1979-25 1988-15 1992-26 1985- 4 DAY BY DAY WET 15 8.6 12.0 8.6 12.4 14.6 12.0 11.8 11.0 9.5 10.4 15.8 8.6 29 YEAR - DAY 1984-29 1997- 6 1989-11 1998-13 1988- 8 1991-24 1998- 4 1981- 5 1965- 3 1994-17 1992-26 1978-17 DAY BY DAY MIN. 13.0 13.1 11.5 11.5 12.0 11.0 8.5 8.5 8.5 10.0 14.0 15.0 30 YEAR - DAY 1966-24 1992-17 2000-22 1978-12 1974-25 1998- 5 1978- 3 1999-31 1999-28 1997- 4 1991-28 1991- 7 DAY BY DAY MAX. 9.5 11.0 10.0 10.5 10.0 9.0 6.0 8.0 13.0 11.5 13.0 10.0 31 YEAR - DAY 1994- 3 1980-10 2001-10 2002-11 1990-13 2001-12 1976-24 1975-18 2001-20 2001- 6 1992-26 1973- 8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** 5.7 11.0 14.1 22.2 27.7 29.4 28.7 25.5 19.0 8.1 1.6 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** -0.1 5.0 6.8 15.0 20.5 20.9 19.8 17.8 12.3 2.5 -4.1 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 11.5 19.2 21.5 29.4 34.9 37.9 37.6 33.2 25.6 13.7 7.2 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 11.6 14.2 14.7 14.4 14.4 17.0 17.8 15.4 13.3 11.2 11.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 3.30 4.73 4.50 6.88 9.68 11.40 10.79 8.77 6.66 3.62 2.25 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 3.64 5.13 4.27 6.55 11.67 14.08 14.54 11.82 8.53 3.43 3.52 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 3.43 5.02 4.28 7.31 12.74 14.60 13.86 11.72 9.08 3.68 2.28 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -6.0 1.0 2.0 8.0 16.0 17.5 17.0 15.0 5.0 -3.0 -9.0 ****** DAY ** 1 5 14 3 1 31 2 19 29 28 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 17.0 26.0 26.0 35.0 38.5 40.0 41.0 37.0 31.0 16.0 11.5 ****** DAY ** 25 26 8 24 17 6 14 2 4 1 5 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** 8.0 0.0 7.0 0.0 0.0 0.0 0.0 0.0 0.0 5.0 12.0 ****** DAY ** 5 ** 18 ** ** ** ** ** ** 25 17 MONTHLY TOTAL PRECIPITATION IN MM. ***** 13.0 0.0 7.0 0.0 0.0 0.0 0.0 0.0 0.0 8.0 19.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.7 14.9 0.0 57.4 NO. OF DAYS WITH PRECIPITATION. *** 2 0 1 0 0 0 0 0 0 2 2 *** NO. OF DAYS PRECIPITATION EQUAL *** 2 0 1 0 0 0 0 0 0 2 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** 0 0 0 0 0 0 0 0 0 0 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 66 54 54 38 42 48 53 53 54 56 62 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 39 34 26 23 32 32 32 33 37 32 51 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 48 42 32 30 39 37 39 41 45 42 41 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 2 0 0 0 0 0 0 0 0 0 18 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 0 0 0 16 12 7 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 15 30 31 31 30 3 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 6 3 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** 17 0 0 0 0 0 0 0 0 4 30 *** DATE OF START AND END FREEZING START = 27 NOV. END = 22 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.4 3.2 10.1 ***** 20.1 23.6 27.6 27.4 23.1 ***** ***** 6.1 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -4.3 -1.1 4.0 ***** 10.4 13.3 17.2 17.5 13.7 ***** ***** -0.8 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.0 7.5 16.2 ***** 29.8 33.9 38.0 37.4 32.6 ***** ***** 12.9 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.3 8.6 12.2 ***** 19.4 20.6 20.8 19.9 18.9 ***** ***** 13.7 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.36 3.34 3.66 ***** 4.93 6.03 9.35 10.38 8.79 ***** ***** 3.27 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.66 3.61 3.58 ***** 5.35 8.30 13.97 15.26 13.89 ***** ***** 5.69 ***** MEAN OF MIXING RATIO AT 15 GMT. 1.62 2.47 3.84 ***** 5.75 8.31 12.35 13.07 11.64 ***** ***** 4.43 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.0 -3.0 1.0 ***** 8.0 12.0 15.0 16.5 9.5 ***** ***** -7.0 ****** DAY 4 5 1 ** 2 6 1 9 30 ** ** 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.5 9.0 20.5 ***** 33.5 35.0 39.5 38.5 37.5 ***** ***** 20.0 ****** DAY 29 20 29 ** 31 26 20 1 13 ** ** 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.0 7.0 8.0 ***** 0.0 2.0 0.0 0.0 8.0 ***** ***** 2.5 ****** DAY 11 13 3 ** ** 1 ** ** 30 ** ** 28 MONTHLY TOTAL PRECIPITATION IN MM. 97.0 7.0 39.0 ***** 0.0 2.4 0.0 0.0 11.0 ***** ***** 2.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 90.0 1.5 6.9 1.6 NO. OF DAYS WITH PRECIPITATION. 8 1 7 *** 0 2 0 0 2 *** *** 1 *** NO. OF DAYS PRECIPITATION EQUAL 8 1 7 *** 0 1 0 0 2 *** *** 1 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 0 0 *** 0 0 0 0 0 *** *** 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 77 51 *** 35 34 45 54 59 *** *** 71 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 50 29 *** 18 22 30 34 40 *** *** 53 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 35 40 36 *** 22 26 34 39 47 *** *** 61 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 0 0 *** 0 0 0 0 0 *** *** 7 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 0 *** *** 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 0 *** *** 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 15 30 31 31 21 *** *** 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 0 *** *** 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 0 *** *** 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 23 0 *** 0 0 0 0 0 *** *** 14 *** DATE OF START AND END FREEZING START = 16 DEC. END = 28 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.1 ***** ***** ***** 20.6 ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -5.5 ***** 8.2 9.6 12.9 ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.7 ***** ***** ***** 28.3 ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 17.2 ***** ***** ***** 15.4 ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.83 ***** 5.26 5.97 8.23 ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 6.82 ***** 6.38 7.78 11.21 ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 5.21 ***** 5.95 6.88 9.84 ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 ***** 6.0 6.5 9.5 ***** ***** ***** ***** ***** ***** ***** ****** DAY 2 ** 19 7 4 ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 19.5 ***** ***** ***** 31.5 ***** ***** ***** ***** ***** ***** ***** ****** DAY 17 ** ** ** 23 ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 ***** 19.0 17.0 9.0 ***** ***** ***** ***** ***** ***** ***** ****** DAY 8 ** 19 7 5 ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 18.0 ***** 19.0 23.0 9.0 ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.6 46.4 ***** ***** NO. OF DAYS WITH PRECIPITATION. 3 *** 1 3 1 *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL 3 *** 1 3 1 *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 *** 1 1 0 *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 86 *** 55 54 57 *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 76 *** 40 40 42 *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 *** 48 48 50 *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 *** 0 0 0 *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 *** 0 0 0 *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** *** 0 *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** *** 12 *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** *** 0 *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** *** 0 *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 *** 0 0 0 *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = 1 JAN. END = 30 JAN. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** 16.2 12.3 6.4 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** 8.1 4.2 0.0 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** 24.3 20.4 12.9 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** 16.2 16.2 12.9 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** 5.77 4.66 3.29 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** 7.28 6.14 3.59 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** 4.5 -4.0 -9.5 ****** DAY ** ** ** ** ** ** ** ** ** 29 29 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** 28.0 34.0 18.0 ****** DAY ** ** ** ** ** ** ** ** ** 3 2 10 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** 5.0 10.0 6.0 ****** DAY ** ** ** ** ** ** ** ** ** 13 20 5 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** 11.0 20.0 10.6 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** 100.0 NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** 4 4 4 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** 4 4 4 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** 0 1 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** 56 64 63 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** 42 45 42 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** 0 1 6 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** 0 1 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** 0 4 11 *** DATE OF START AND END FREEZING START = 27 NOV. END = 30 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.2 4.8 11.3 15.2 ***** ***** ***** 27.6 20.6 15.6 10.4 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -1.7 -0.8 4.0 7.5 ***** ***** ***** 17.5 13.6 9.7 4.4 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.1 10.3 18.6 22.8 ***** ***** ***** 37.6 27.6 21.6 16.3 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.8 11.1 14.6 15.3 ***** ***** ***** 20.1 14.0 11.9 11.9 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.91 2.97 3.96 5.43 ***** ***** ***** 11.93 9.20 7.44 5.12 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 3.36 3.21 5.05 6.40 ***** ***** ***** 14.03 11.68 7.95 5.65 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -8.0 3.0 3.0 ***** ***** ***** 14.5 11.5 5.0 -1.5 ***** ****** DAY 20 7 2 2 ** ** ** 21 18 29 19 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 17.0 20.5 26.5 ***** ***** ***** 39.5 30.0 24.5 19.5 ***** ****** DAY 2 26 21 28 ** ** ** 1 4 1 6 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.0 5.0 12.0 14.0 ***** ***** ***** 0.0 0.0 12.0 16.0 ***** ****** DAY 22 21 18 1 ** ** ** ** ** 28 9 ** MONTHLY TOTAL PRECIPITATION IN MM. 14.5 5.0 22.0 35.0 ***** ***** ***** 0.0 0.0 14.0 45.0 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 30.6 25.8 0.0 43.5 NO. OF DAYS WITH PRECIPITATION. 2 1 2 5 *** *** *** 0 0 2 7 *** *** NO. OF DAYS PRECIPITATION EQUAL 2 1 2 5 *** *** *** 0 0 2 7 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 2 1 *** *** *** 0 0 1 1 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 66 55 53 53 *** *** *** 56 61 69 73 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 45 50 46 42 *** *** *** 38 57 54 56 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 10 9 0 0 *** *** *** 0 0 0 0 *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** *** 0 0 0 0 *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 *** *** *** 0 0 0 0 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** *** 30 2 0 0 *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** *** 0 0 0 0 *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** *** 0 0 0 0 *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 15 0 0 *** *** *** 0 0 0 1 *** *** DATE OF START AND END FREEZING START = 19 NOV. END = 15 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -2.3 5.4 11.0 14.4 21.0 24.4 ***** 24.7 21.3 15.8 8.9 4.8 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -5.2 2.4 6.7 8.4 12.5 13.6 ***** 14.5 12.9 8.6 3.0 -0.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.5 8.3 15.2 20.5 29.5 35.1 ***** 34.8 29.8 23.0 14.8 9.7 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 5.7 5.9 8.5 12.1 17.0 21.5 ***** 20.3 16.9 14.4 11.8 9.9 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.17 4.26 5.32 7.02 8.42 9.26 ***** 9.48 8.01 5.95 4.01 3.72 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** 7.67 7.28 8.13 8.69 ***** 9.08 8.77 6.45 5.41 4.14 ***** MEAN OF MIXING RATIO AT 15 GMT. 2.44 4.71 7.25 7.33 9.22 10.70 ***** 9.73 9.15 6.95 4.57 3.69 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.5 -6.0 -2.5 -0.5 9.5 10.0 ***** 13.0 8.0 5.0 -1.0 -3.5 ****** DAY 8 1 24 15 21 1 ** 25 12 28 11 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 15.0 23.0 28.5 33.5 38.5 ***** 37.0 35.0 29.0 21.0 12.5 ****** DAY 18 26 31 28 14 12 ** 16 9 1 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 50.0 8.0 17.0 8.0 0.0 0.0 ***** 0.0 4.0 13.5 2.0 7.0 ****** DAY 23 28 15 13 ** ** ** ** 12 24 9 27 MONTHLY TOTAL PRECIPITATION IN MM. 144.5 8.0 40.5 24.0 0.0 0.0 ***** 0.0 4.0 30.5 2.0 12.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 72.6 9.0 1.5 16.9 NO. OF DAYS WITH PRECIPITATION. 7 1 7 7 0 0 *** 0 1 5 1 2 *** NO. OF DAYS PRECIPITATION EQUAL 7 1 7 7 0 0 *** 0 1 5 1 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 0 1 0 0 0 *** 0 0 1 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 63 70 65 69 58 61 *** 58 59 58 64 81 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** 66 46 29 22 *** 24 31 33 46 50 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 62 70 69 57 50 52 *** 43 45 47 53 60 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 3 0 0 0 0 *** 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 0 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 13 0 0 0 0 0 *** 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 13 30 *** 31 15 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 6 1 1 0 0 *** 0 0 0 5 18 *** DATE OF START AND END FREEZING START = 10 NOV. END = 15 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.0 7.9 10.7 16.5 20.9 24.3 26.5 27.2 22.0 16.1 13.1 6.0 16.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.4 1.1 3.8 8.5 11.5 13.8 16.0 17.1 11.9 6.9 5.3 0.7 8.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.3 14.7 17.6 24.6 30.4 34.9 36.9 37.3 32.2 25.4 20.9 11.4 24.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.7 13.6 13.8 16.1 18.9 21.2 20.9 20.2 20.3 18.5 15.6 10.7 16.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.46 3.60 4.23 5.64 7.28 8.49 9.95 10.76 7.60 4.79 4.35 3.72 6.16 MEAN OF MIXING RATIO AT 09 GMT. 4.29 4.14 4.38 6.33 9.03 8.75 11.59 11.73 8.61 7.66 6.47 4.56 7.30 MEAN OF MIXING RATIO AT 15 GMT. 3.67 3.71 4.51 6.13 8.63 9.32 11.81 12.27 8.87 6.26 5.34 3.76 7.03 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.5 -4.5 0.0 3.0 5.5 8.5 13.5 13.0 8.5 3.5 3.5 -3.5 -6.5 DAY 29 21 17 25 6 11 8 27 23 24 23 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 19.5 27.0 29.5 39.5 40.0 41.5 42.0 38.0 34.0 26.0 19.0 42.0 DAY 20 18 31 17 17 30 1 1 1 1 3 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 26.6 0.0 10.0 22.0 1.0 0.0 0.0 0.0 0.0 0.0 4.0 2.0 26.6 DAY 27 ** 11 23 10 ** ** ** ** ** 22 12 MONTHLY TOTAL PRECIPITATION IN MM. 45.9 0.0 16.0 25.0 1.0 0.0 0.0 0.0 0.0 0.0 4.0 2.0 93.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 65.9 27.7 0.0 6.4 NO. OF DAYS WITH PRECIPITATION. 4 0 4 3 1 0 0 0 0 0 1 1 14 NO. OF DAYS PRECIPITATION EQUAL 4 0 4 3 1 0 0 0 0 0 1 1 14 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 1 1 0 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 66 63 57 55 56 54 59 58 54 56 72 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 58 38 33 31 32 23 28 27 28 35 40 50 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 47 48 41 43 37 39 42 41 46 49 55 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 1 0 0 0 0 0 0 0 0 0 0 4 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 17 26 31 31 20 3 0 0 128 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 4 1 0 0 0 0 6 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 13 11 2 0 0 0 0 0 0 0 0 17 43 DATE OF START AND END FREEZING START = 10 DEC. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.5 4.6 ***** ***** ***** ***** ***** ***** 22.4 15.7 10.6 5.8 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -3.4 -1.7 ***** ***** ***** ***** ***** ***** 12.5 5.4 3.4 -0.4 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.4 10.8 ***** ***** ***** ***** ***** ***** 32.3 26.0 17.7 12.0 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.8 12.5 ***** ***** ***** ***** ***** ***** 19.8 20.6 14.3 12.4 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.70 3.16 ***** ***** ***** ***** ***** ***** 6.29 5.08 5.03 4.00 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.87 3.84 ***** ***** ***** ***** ***** ***** 5.46 4.70 5.74 3.91 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.22 3.49 ***** ***** ***** ***** ***** ***** 8.09 5.25 5.81 4.11 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -7.0 ***** ***** ***** ***** ***** ***** 8.0 3.0 1.5 -8.0 ****** DAY 17 16 ** ** ** ** ** ** 20 16 14 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.8 17.0 ***** ***** ***** ***** ***** ***** 38.5 30.0 22.0 18.0 ****** DAY 4 22 ** ** ** ** ** ** 9 18 4 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 9.0 ***** ***** ***** ***** ***** ***** 0.0 2.0 9.0 2.0 ****** DAY ** 15 ** ** ** ** ** ** ** 27 19 20 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 12.0 ***** ***** ***** ***** ***** ***** 0.0 2.0 26.5 3.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.3 ***** 0.0 72.7 NO. OF DAYS WITH PRECIPITATION. 0 3 *** *** *** *** *** *** 0 1 7 3 *** NO. OF DAYS PRECIPITATION EQUAL 0 3 *** *** *** *** *** *** 0 1 7 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 *** *** *** *** *** *** 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 75 *** *** *** *** *** *** 52 63 75 79 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 45 45 *** *** *** *** *** *** 18 23 47 47 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 61 52 *** *** *** *** *** *** 40 41 65 65 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 14 9 *** *** *** *** *** *** 0 0 0 6 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 *** *** *** *** *** *** 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** *** *** *** *** *** 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** *** *** *** *** *** 20 1 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** *** *** *** *** *** 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** *** *** *** *** *** 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 18 *** *** *** *** *** *** 0 0 0 13 *** DATE OF START AND END FREEZING START = 11 DEC. END = 26 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1972 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -0.6 -1.4 5.7 14.3 17.1 25.3 30.0 24.8 24.1 24.1 8.9 1.3 14.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.9 -8.8 -1.9 5.3 8.7 15.9 22.1 16.4 15.5 15.4 2.8 -4.1 6.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.6 5.9 13.2 23.3 25.6 34.7 37.8 33.1 32.6 32.8 14.9 6.7 22.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.5 14.7 15.1 18.0 16.9 18.8 15.7 16.7 17.1 17.4 12.1 10.8 15.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.98 2.76 4.15 5.18 7.72 6.56 6.04 9.75 9.96 9.61 4.96 3.23 6.07 MEAN OF MIXING RATIO AT 09 GMT. 3.74 4.61 6.23 8.04 11.73 9.12 6.88 16.28 15.18 15.95 6.80 4.27 9.07 MEAN OF MIXING RATIO AT 15 GMT. 3.46 3.83 5.59 7.32 10.47 9.07 7.99 15.27 14.92 15.83 6.47 3.90 8.68 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.5 -17.0 -6.5 -2.5 5.0 10.0 18.5 13.5 13.5 6.5 -4.0 -9.0 -17.0 DAY 24 11 2 4 7 8 31 2 22 31 28 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 14.0 20.5 29.0 33.5 39.0 40.5 36.5 34.5 36.5 30.5 11.5 40.5 DAY 18 18 31 30 28 21 23 10 15 7 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 41.0 26.5 5.6 8.4 11.3 0.0 10.0 0.0 5.0 11.0 16.9 41.0 DAY 7 17 22 26 19 14 ** 1 ** 30 29 31 MONTHLY TOTAL PRECIPITATION IN MM. 34.5 168.5 111.9 18.1 39.2 13.6 0.0 26.0 0.0 5.0 35.0 57.2 509.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 61.9 13.9 5.1 19.1 NO. OF DAYS WITH PRECIPITATION. 7 7 14 4 8 2 0 3 0 1 5 8 59 NO. OF DAYS PRECIPITATION EQUAL 7 7 13 4 8 2 0 3 0 1 5 8 58 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 6 4 0 0 1 0 1 0 0 1 2 16 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 83 81 57 67 40 26 59 61 63 71 79 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 77 83 71 47 58 27 16 50 49 51 58 70 55 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 86 84 73 48 62 32 22 54 55 57 65 76 60 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 28 4 0 0 0 0 0 0 0 1 17 70 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 26 0 0 0 0 0 28 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 4 2 0 0 0 0 0 0 0 0 0 1 7 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 28 31 30 30 28 1 0 152 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 26 1 0 0 0 0 0 0 9 30 125 DATE OF START AND END FREEZING START = 20 NOV. END = 4 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1973 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.3 5.4 9.3 14.5 21.0 25.6 28.5 27.0 22.3 17.9 8.5 3.3 15.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.6 -1.2 1.4 6.2 11.4 13.7 15.0 15.0 11.3 8.2 2.7 -2.8 6.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.2 12.1 17.1 22.7 30.6 37.5 42.0 39.0 33.3 27.7 14.3 9.4 24.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.8 13.3 15.7 16.5 19.2 23.8 27.0 24.0 22.1 19.5 11.6 12.2 17.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.86 3.74 3.59 5.28 7.31 8.62 10.80 10.17 8.11 5.62 3.98 2.64 6.06 MEAN OF MIXING RATIO AT 09 GMT. 3.55 5.28 4.44 4.33 4.72 6.17 7.97 8.95 7.52 5.01 4.41 3.22 5.46 MEAN OF MIXING RATIO AT 15 GMT. 2.86 4.33 5.01 6.64 8.49 8.39 9.74 11.09 9.56 5.91 4.43 2.63 6.59 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.5 -6.5 -1.5 3.5 6.5 10.5 11.5 10.5 7.5 4.5 -4.5 -5.0 -7.5 DAY 3 6 9 1 1 8 1 29 15 28 25 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 18.5 21.5 32.5 36.0 42.0 44.0 43.5 39.5 30.0 21.5 16.2 44.0 DAY 31 19 20 28 29 27 2 2 15 14 1 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.2 19.2 8.0 5.0 2.3 0.0 0.0 0.0 0.0 0.0 5.0 10.0 19.2 DAY 24 22 31 18 11 ** ** ** ** ** 19 30 MONTHLY TOTAL PRECIPITATION IN MM. 19.4 44.6 11.4 12.5 2.3 0.0 0.0 0.0 0.0 0.0 9.0 23.0 122.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 61.7 12.1 0.0 26.2 NO. OF DAYS WITH PRECIPITATION. 5 6 3 4 1 0 0 0 0 0 2 3 24 NO. OF DAYS PRECIPITATION EQUAL 5 6 3 4 1 0 0 0 0 0 2 3 24 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 0 0 0 0 0 0 0 0 0 1 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 79 66 63 58 46 53 52 60 56 64 63 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 61 35 25 18 16 19 23 23 23 51 47 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 69 49 44 36 25 25 34 44 32 56 45 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 3 0 0 0 0 0 0 0 0 4 10 40 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 2 18 30 29 31 24 2 0 0 136 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 25 9 0 0 0 0 41 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 22 4 0 0 0 0 0 0 0 8 31 96 DATE OF START AND END FREEZING START = 19 NOV. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1974 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.2 1.4 10.1 13.8 22.1 27.3 28.0 26.5 23.0 15.8 12.1 2.7 15.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.0 -3.0 4.3 7.3 13.5 18.6 20.1 18.0 14.4 7.0 5.0 -2.5 8.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.4 5.8 15.8 20.4 30.7 36.1 36.0 35.0 31.5 24.7 19.2 8.0 22.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.4 8.8 11.5 13.1 17.2 17.5 15.9 17.0 17.1 17.7 14.2 10.5 14.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.04 3.52 5.48 5.39 7.29 9.73 11.18 9.53 7.44 4.23 4.76 3.48 6.26 MEAN OF MIXING RATIO AT 09 GMT. 3.58 4.07 6.54 4.55 5.83 7.27 8.91 8.67 7.74 4.18 4.62 3.87 5.82 MEAN OF MIXING RATIO AT 15 GMT. 3.76 3.85 6.54 5.10 7.03 8.59 10.62 10.25 8.21 7.12 5.17 4.27 6.71 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.0 -12.5 -3.0 1.5 6.5 14.5 16.0 13.5 10.5 4.0 -1.5 -10.0 -12.5 DAY 19 4 6 1 2 4 6 31 26 19 28 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.5 13.5 26.5 28.5 35.5 42.5 42.0 38.0 35.5 27.0 26.5 16.0 42.5 DAY 6 14 20 23 28 30 1 12 22 21 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.0 15.0 8.0 5.0 3.5 9.0 6.0 0.0 0.5 0.0 2.0 29.0 29.0 DAY 15 18 4 1 16 12 6 ** 7 ** 8 5 MONTHLY TOTAL PRECIPITATION IN MM. 91.0 66.0 18.0 19.5 5.5 10.5 15.0 0.0 0.5 0.0 2.5 66.5 295.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 59.3 12.0 5.3 23.4 NO. OF DAYS WITH PRECIPITATION. 12 9 8 8 2 3 3 0 1 0 2 4 52 NO. OF DAYS PRECIPITATION EQUAL 12 9 8 8 2 2 3 0 0 0 1 4 49 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 3 0 0 0 0 0 0 0 0 0 3 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 87 81 66 57 56 61 60 58 57 76 86 69 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 71 73 56 36 21 21 24 25 28 21 33 57 39 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 82 80 61 43 29 25 33 34 36 48 52 82 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 17 10 0 0 0 0 0 0 0 0 0 10 37 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 7 14 3 0 0 0 0 25 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 19 30 31 31 24 0 0 0 135 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 3 0 0 0 0 0 6 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 17 6 0 0 0 0 0 0 0 1 27 81 DATE OF START AND END FREEZING START = 28 NOV. END = 11 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1975 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.9 4.4 9.5 16.8 21.1 24.9 30.6 25.9 21.3 15.0 7.9 2.7 15.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.7 -0.8 2.6 9.0 13.2 16.2 21.8 15.3 10.0 4.5 0.1 -2.6 7.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.6 9.6 16.5 24.5 29.0 33.7 39.3 36.4 32.7 25.4 15.8 7.9 23.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.3 10.4 13.9 15.5 15.8 17.5 17.5 21.1 22.7 20.9 15.7 10.5 15.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.50 4.10 4.55 6.48 8.51 9.60 10.23 9.05 7.47 5.40 4.22 3.75 6.41 MEAN OF MIXING RATIO AT 09 GMT. 4.12 4.24 4.87 5.93 7.52 6.91 7.81 8.96 7.16 4.98 4.31 4.11 5.91 MEAN OF MIXING RATIO AT 15 GMT. 4.23 4.57 5.23 7.04 7.02 7.33 8.91 9.79 7.94 5.72 4.31 4.17 6.35 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -8.0 -2.5 3.0 8.0 13.0 18.5 9.5 5.5 1.0 -4.0 -7.5 -8.0 DAY 5 13 9 4 10 15 4 29 24 31 30 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.5 16.5 24.5 30.0 36.5 37.5 42.0 40.0 38.0 32.0 22.5 11.5 42.0 DAY 1 24 27 14 29 27 5 1 7 1 1 13 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.5 16.0 6.5 9.0 10.5 7.5 0.0 0.0 0.0 0.0 8.0 14.0 18.5 DAY 3 21 19 23 13 13 ** ** ** ** 29 23 MONTHLY TOTAL PRECIPITATION IN MM. 38.0 39.0 19.5 12.5 14.5 7.5 0.0 0.0 0.0 0.0 11.0 44.0 186.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 51.9 18.5 0.0 29.6 NO. OF DAYS WITH PRECIPITATION. 5 6 5 2 3 1 0 0 0 0 2 5 29 NO. OF DAYS PRECIPITATION EQUAL 5 6 5 2 3 1 0 0 0 0 2 5 29 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 0 0 1 0 0 0 0 0 0 2 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 86 74 64 66 60 48 53 59 68 75 87 69 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 57 41 31 30 21 18 24 24 24 38 63 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 72 57 45 37 28 24 32 35 40 56 75 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 6 5 0 0 0 0 0 0 0 0 1 12 24 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 20 6 0 0 0 0 26 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 13 30 31 31 25 5 0 0 136 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 14 3 0 0 0 0 17 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 16 8 0 0 0 0 0 0 0 14 27 94 DATE OF START AND END FREEZING START = 6 NOV. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1976 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.6 3.2 ***** ***** 20.5 25.9 29.7 29.0 24.9 17.5 9.8 5.6 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -1.6 -2.0 ***** ***** 13.3 16.9 21.3 20.3 16.3 10.2 3.1 0.7 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.7 8.3 12.1 21.2 27.7 34.8 38.2 37.7 33.6 24.9 16.5 10.5 23.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.3 10.3 ***** ***** 14.4 17.9 16.9 17.4 17.3 14.7 13.4 9.8 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.76 3.27 4.15 6.25 8.82 9.22 11.08 8.39 7.25 6.16 3.89 3.85 6.34 MEAN OF MIXING RATIO AT 09 GMT. 4.13 3.11 4.83 5.98 7.39 8.26 8.43 7.55 7.04 6.87 4.35 4.21 6.01 MEAN OF MIXING RATIO AT 15 GMT. 4.19 3.60 5.00 6.53 7.90 8.73 9.77 9.20 7.19 6.43 4.74 4.45 6.48 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.5 -7.5 ***** ***** 10.0 11.0 16.5 15.5 9.5 5.2 -2.2 -3.5 ****** DAY 1 16 ** ** 17 6 5 26 29 31 30 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 15.0 17.5 26.5 34.0 39.5 42.0 41.0 39.0 29.5 23.0 17.5 42.0 DAY 20 7 21 30 31 25 16 1 14 1 6 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.0 13.0 16.0 14.5 9.0 5.0 0.0 0.0 0.0 8.0 11.0 11.5 16.0 DAY 20 10 23 9 20 7 ** ** ** 31 27 22 MONTHLY TOTAL PRECIPITATION IN MM. 28.0 27.0 31.0 30.5 34.0 11.0 0.0 0.0 0.0 17.0 11.0 33.5 223.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 38.6 33.9 0.0 27.6 NO. OF DAYS WITH PRECIPITATION. 4 3 3 4 7 3 0 0 0 4 1 5 34 NO. OF DAYS PRECIPITATION EQUAL 4 3 3 4 7 3 0 0 0 4 1 5 34 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 1 1 0 0 0 0 0 0 1 1 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 78 86 72 71 55 57 45 51 65 69 81 68 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 46 56 39 31 24 21 19 24 36 38 55 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 65 65 69 51 43 30 28 29 30 46 57 74 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 10 *** *** 0 0 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 *** *** 0 4 16 13 1 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 5 28 31 31 27 0 0 0 122 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 9 3 0 0 0 0 12 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 23 22 *** *** 0 0 0 0 0 0 4 13 *** DATE OF START AND END FREEZING START = 15 NOV. END = 29 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -1.1 7.0 14.0 16.7 21.6 28.0 30.0 29.3 24.9 16.7 11.2 6.3 17.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.7 0.5 6.4 10.4 14.3 19.2 21.1 20.6 16.1 9.8 4.7 1.2 10.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.4 13.5 21.6 23.0 28.8 36.8 38.9 37.9 33.7 23.5 17.8 11.4 24.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.1 13.0 15.2 12.6 14.5 17.6 17.8 17.3 17.6 13.7 13.1 10.2 14.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.03 3.58 4.31 6.66 8.66 9.26 10.37 9.10 8.23 7.22 5.32 4.15 6.66 MEAN OF MIXING RATIO AT 09 GMT. 3.85 4.14 3.57 6.00 7.85 6.29 8.70 7.91 7.53 7.12 5.51 4.51 6.08 MEAN OF MIXING RATIO AT 15 GMT. 3.62 4.59 4.58 6.33 8.48 6.79 8.67 9.68 8.76 8.19 6.14 5.15 6.75 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.5 -6.5 0.5 5.5 10.5 13.5 17.5 12.5 11.5 0.5 -0.5 -5.0 -9.5 DAY 18 2 1 17 19 2 3 30 8 24 18 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 20.5 27.0 28.0 34.5 39.5 41.5 43.0 37.0 37.5 20.5 20.0 43.0 DAY 1 19 19 29 14 29 4 13 12 8 11 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.0 3.0 4.0 20.0 10.0 0.0 0.0 7.0 0.0 12.0 14.0 10.0 20.0 DAY 1 7 27 7 24 ** ** 30 ** 26 13 14 MONTHLY TOTAL PRECIPITATION IN MM. 50.0 5.0 4.0 48.5 16.0 0.0 0.0 7.0 0.0 42.5 18.5 21.0 212.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.8 30.4 3.3 38.6 NO. OF DAYS WITH PRECIPITATION. 9 2 1 8 4 0 0 1 0 7 3 4 39 NO. OF DAYS PRECIPITATION EQUAL 9 2 1 8 4 0 0 1 0 7 3 4 39 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 0 1 1 0 0 0 0 1 1 1 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 90 77 55 70 67 51 54 51 59 79 82 83 68 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 81 46 23 36 35 17 21 21 23 40 43 55 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 91 65 36 46 46 21 25 33 37 62 66 76 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 4 0 0 0 0 0 0 0 0 0 3 25 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 17 20 0 0 0 0 44 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 0 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 12 28 31 31 30 5 0 0 137 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 15 8 0 0 0 0 23 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 14 0 0 0 0 0 0 0 0 3 12 59 DATE OF START AND END FREEZING START = 18 NOV. END = 27 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.6 7.4 11.6 16.9 21.8 25.2 28.3 27.9 25.5 19.1 7.8 7.7 17.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.3 1.5 4.7 9.1 13.3 16.5 19.2 18.6 16.1 11.7 1.8 3.2 9.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.4 13.3 18.1 24.7 30.2 33.9 37.4 37.2 34.9 26.6 13.7 12.3 24.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.7 11.7 13.4 15.6 16.9 17.4 18.2 18.6 18.8 14.9 11.9 9.1 14.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.56 4.03 4.68 4.85 7.03 7.83 9.06 8.79 7.18 6.39 3.94 4.77 6.01 MEAN OF MIXING RATIO AT 09 GMT. 3.88 3.97 3.90 3.72 5.25 6.51 10.90 7.58 6.78 6.68 4.26 4.95 5.70 MEAN OF MIXING RATIO AT 15 GMT. 4.14 4.58 4.65 5.20 6.35 7.74 10.35 9.17 8.24 7.48 4.57 5.09 6.46 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.8 -3.5 0.0 3.0 5.0 11.0 14.5 15.0 12.0 9.0 -3.0 -1.4 -8.8 DAY 16 6 17 16 3 3 8 27 26 6 23 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 20.0 25.0 30.0 35.0 40.5 42.5 40.0 37.5 31.0 19.0 17.0 42.5 DAY 10 20 31 10 17 30 1 14 12 1 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 15.0 8.0 16.5 0.0 0.0 0.0 0.0 0.0 0.0 3.0 6.0 15.0 16.5 DAY 21 23 7 ** ** ** ** ** ** 30 13 8 MONTHLY TOTAL PRECIPITATION IN MM. 19.0 21.0 50.5 0.0 0.0 0.0 0.0 0.0 0.0 3.5 12.0 39.5 145.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 62.2 0.0 0.0 37.8 NO. OF DAYS WITH PRECIPITATION. 3 4 6 0 0 0 0 0 0 2 3 7 25 NO. OF DAYS PRECIPITATION EQUAL 3 4 6 0 0 0 0 0 0 1 3 7 24 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 2 0 0 0 0 0 0 0 0 1 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 79 71 53 57 53 53 54 53 61 74 83 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 50 44 34 19 21 19 31 21 21 30 43 54 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 60 47 34 31 31 33 32 34 48 61 66 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 0 0 0 0 0 0 0 0 0 0 0 7 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 9 8 0 0 0 0 21 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 20 26 31 31 29 1 0 0 139 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 5 1 0 0 0 0 7 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 20 10 1 0 0 0 0 0 0 0 13 8 52 DATE OF START AND END FREEZING START = 3 NOV. END = 17 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.9 8.0 9.9 18.0 20.1 24.9 30.5 26.8 25.2 19.7 11.9 5.8 17.1 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.1 2.6 4.3 11.3 13.0 16.1 22.1 17.9 16.5 11.9 4.8 1.1 10.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.8 13.3 15.4 25.1 27.2 33.7 38.9 35.7 33.8 27.5 19.1 10.4 24.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.7 10.7 11.1 13.8 14.2 17.6 16.8 17.8 17.3 15.6 14.3 9.3 14.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.01 4.60 5.16 6.33 8.45 9.88 9.87 8.54 7.09 6.60 4.03 4.18 6.56 MEAN OF MIXING RATIO AT 09 GMT. 4.34 4.65 ***** ***** ***** ***** ***** 6.90 5.61 6.37 4.23 4.40 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.31 5.28 5.10 6.66 8.24 8.27 9.20 9.08 7.19 6.82 4.90 4.70 6.65 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -2.5 -5.5 3.0 5.5 11.5 18.5 15.5 10.5 5.5 -1.5 -4.0 -6.0 DAY 12 24 4 29 1 16 6 3 26 31 21 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 19.0 17.5 23.5 30.5 33.5 38.5 42.0 39.5 38.5 32.0 26.5 16.0 42.0 DAY 4 14 20 5 23 30 9 18 11 13 2 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 6.0 40.0 5.0 4.0 7.0 0.0 0.0 0.0 0.0 0.0 11.0 40.0 DAY 10 9 26 25 4 5 ** ** ** ** ** 9 MONTHLY TOTAL PRECIPITATION IN MM. 41.0 12.0 63.0 8.0 7.0 18.0 0.0 0.0 0.0 0.0 0.0 35.0 184.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 63.0 17.9 0.0 19.0 NO. OF DAYS WITH PRECIPITATION. 3 3 3 2 2 3 0 0 0 0 0 5 21 NO. OF DAYS PRECIPITATION EQUAL 3 2 3 2 2 3 0 0 0 0 0 5 20 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 0 2 0 0 0 0 0 0 0 0 2 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 81 79 61 71 65 48 53 49 65 61 86 67 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 48 *** *** *** *** *** 20 18 29 30 56 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 67 56 41 44 31 25 32 32 42 51 76 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 0 4 0 0 0 0 0 0 0 0 1 12 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 21 2 2 0 0 0 26 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 2 13 29 31 31 21 9 0 0 136 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 9 0 0 0 0 0 9 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 16 9 5 0 0 0 0 0 0 0 2 9 41 DATE OF START AND END FREEZING START = 21 NOV. END = 6 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.2 3.8 9.8 18.0 22.1 26.5 29.5 28.3 24.3 17.9 12.2 7.4 16.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.8 -0.7 3.8 10.9 14.3 17.4 20.4 19.3 15.2 10.0 5.9 1.5 9.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.0 8.3 16.3 25.1 29.9 35.6 38.7 37.3 33.3 25.7 18.5 13.3 24.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.7 9.0 12.5 14.2 15.6 18.2 18.3 18.0 18.0 15.7 12.6 11.8 14.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.87 3.87 4.63 6.09 8.06 9.32 9.37 10.14 7.16 5.89 5.66 3.78 6.49 MEAN OF MIXING RATIO AT 09 GMT. 3.64 4.07 4.11 5.10 6.64 7.70 7.74 8.87 5.64 5.13 5.33 3.33 5.61 MEAN OF MIXING RATIO AT 15 GMT. 3.27 4.22 5.09 5.99 7.85 9.40 9.41 10.20 7.37 6.46 6.21 4.62 6.67 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.0 -8.0 -2.0 4.0 8.5 12.5 14.0 14.0 7.5 5.0 0.5 -1.5 -8.0 DAY 24 2 6 17 1 1 29 17 23 24 27 14 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.5 19.0 23.0 30.0 35.5 40.5 41.0 40.0 38.0 32.5 24.5 18.5 41.0 DAY 20 9 26 12 23 20 5 6 2 3 14 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 17.0 15.0 10.0 7.0 5.0 0.0 0.0 0.0 0.0 4.0 3.0 10.0 17.0 DAY 23 12 21 16 1 ** ** ** ** 23 12 21 MONTHLY TOTAL PRECIPITATION IN MM. 40.0 71.0 35.0 20.0 5.0 0.0 0.0 0.0 0.0 8.0 8.0 13.0 200.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 73.0 12.5 0.0 14.5 NO. OF DAYS WITH PRECIPITATION. 6 9 5 4 1 0 0 0 0 2 3 3 33 NO. OF DAYS PRECIPITATION EQUAL 6 9 5 4 1 0 0 0 0 2 3 3 33 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 4 1 0 0 0 0 0 0 0 0 1 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 91 74 59 58 55 46 53 53 63 74 73 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 61 34 26 25 22 18 23 18 26 42 34 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 87 74 54 39 37 33 27 35 32 44 61 62 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 12 4 0 0 0 0 0 0 0 0 0 0 16 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 15 9 2 0 0 0 28 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 4 17 30 31 31 28 10 0 0 151 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 5 3 0 0 0 0 9 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 14 6 0 0 0 0 0 0 0 0 9 57 DATE OF START AND END FREEZING START = 9 DEC. END = 22 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1981 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.2 7.1 11.8 15.8 20.5 25.6 28.7 28.2 24.4 17.3 13.1 8.9 17.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.0 1.3 5.8 9.0 13.0 17.8 20.5 20.1 15.9 10.7 5.7 2.8 10.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.3 12.8 18.1 22.7 28.0 33.3 36.9 36.3 32.9 24.0 19.8 14.5 24.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.3 11.5 12.3 13.7 15.0 15.5 16.4 16.2 17.0 13.3 14.1 11.7 13.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.91 4.12 4.37 5.99 7.33 9.47 10.95 10.16 6.92 6.44 4.30 4.32 6.52 MEAN OF MIXING RATIO AT 09 GMT. 3.21 3.13 3.95 5.12 6.03 8.95 9.72 8.85 5.49 5.46 3.08 4.06 5.59 MEAN OF MIXING RATIO AT 15 GMT. 3.98 4.10 5.24 6.35 7.07 9.81 10.79 12.00 7.74 6.62 4.32 4.46 6.87 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.5 -3.0 -2.5 -1.0 6.0 12.5 17.0 16.5 10.5 6.5 0.0 0.0 -4.5 DAY 4 10 8 5 5 5 20 31 24 18 25 10 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 18.0 24.5 31.5 37.5 38.0 41.0 39.0 38.0 29.5 25.0 18.0 41.0 DAY 9 22 27 27 25 28 16 6 3 4 3 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 15.0 13.0 8.0 21.0 10.0 7.0 16.5 0.0 0.0 9.5 6.5 17.0 21.0 DAY 13 23 15 4 8 26 20 ** ** 8 22 27 MONTHLY TOTAL PRECIPITATION IN MM. 39.5 28.0 24.0 50.0 18.0 7.0 16.5 0.0 0.0 16.5 6.5 32.0 238.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 38.4 31.5 6.9 23.1 NO. OF DAYS WITH PRECIPITATION. 5 5 6 6 4 1 1 0 0 4 1 5 38 NO. OF DAYS PRECIPITATION EQUAL 5 5 6 6 4 1 1 0 0 4 1 5 38 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 0 1 1 0 1 0 0 0 0 1 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 77 57 60 56 56 58 57 51 70 62 76 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 39 32 30 29 25 27 26 24 18 30 21 40 28 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 53 51 48 38 35 32 40 35 48 42 57 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 4 11 11 0 0 0 0 27 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 15 25 31 31 25 0 0 0 130 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 6 0 0 0 0 0 6 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 17 14 2 2 0 0 0 0 0 0 1 1 37 DATE OF START AND END FREEZING START = 25 NOV. END = 6 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1982 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.8 3.3 8.8 19.7 22.6 26.4 29.6 27.6 24.2 15.7 8.6 2.4 16.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.3 -2.3 2.6 12.6 15.1 17.3 21.2 19.2 16.3 9.8 4.3 -2.4 9.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.9 8.6 14.7 26.8 30.2 35.5 37.9 36.0 32.2 21.7 12.9 7.1 22.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.2 10.9 12.1 14.2 15.1 18.2 16.7 16.8 15.9 11.9 8.7 9.5 13.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.77 3.55 4.03 5.96 8.63 8.98 9.18 9.13 7.99 7.32 5.23 3.67 6.45 MEAN OF MIXING RATIO AT 09 GMT. 3.40 2.69 4.28 5.33 7.15 6.74 6.75 7.38 5.66 6.45 5.16 3.18 5.35 MEAN OF MIXING RATIO AT 15 GMT. 4.18 3.47 4.42 6.49 8.07 8.43 9.12 10.56 8.32 7.79 5.89 4.06 6.73 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.5 -9.0 -2.0 4.5 11.5 13.0 17.0 16.5 12.5 6.0 -0.5 -8.0 -9.0 DAY 21 18 8 1 9 3 1 15 25 10 14 11 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 14.5 20.0 32.0 36.0 39.0 40.5 41.0 35.5 27.5 18.5 10.5 41.0 DAY 9 4 17 30 19 8 17 4 2 2 7 28 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 12.0 12.5 2.0 6.0 2.0 0.0 0.0 0.0 40.0 24.0 20.0 40.0 DAY 29 14 27 8 24 1 ** ** ** 28 1 30 MONTHLY TOTAL PRECIPITATION IN MM. 24.5 29.5 32.5 5.0 16.0 2.0 0.0 0.0 0.0 133.5 57.0 47.0 347.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 24.9 6.6 0.0 68.4 NO. OF DAYS WITH PRECIPITATION. 3 3 5 4 6 1 0 0 0 8 5 6 41 NO. OF DAYS PRECIPITATION EQUAL 3 3 5 2 5 1 0 0 0 8 5 6 38 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 1 0 0 0 0 0 0 4 3 2 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 90 74 55 66 54 47 51 56 80 87 92 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 43 40 42 24 27 19 17 21 19 41 53 53 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 63 51 37 38 28 28 35 38 62 77 86 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 7 0 0 0 0 0 0 0 0 0 8 19 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 16 4 0 0 0 0 22 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 6 17 30 31 31 27 0 0 0 142 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 5 1 0 0 0 0 6 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 17 19 7 0 0 0 0 0 0 0 3 22 68 DATE OF START AND END FREEZING START = 14 NOV. END = 27 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1983 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -0.3 4.8 8.7 15.4 21.8 27.3 30.3 30.0 24.8 18.1 12.8 6.4 16.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.8 -1.1 2.4 8.6 14.8 18.8 21.3 21.4 16.6 10.0 6.8 1.6 9.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.7 10.8 14.6 22.0 29.0 35.7 39.3 38.5 33.0 26.1 19.6 11.0 23.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.5 11.9 12.2 13.4 14.3 16.9 18.0 17.1 16.4 16.1 12.8 9.4 14.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 3.79 4.52 6.32 9.38 9.63 9.16 9.81 8.94 5.34 5.05 5.11 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.18 2.87 3.90 5.50 7.71 7.15 6.32 8.01 6.69 4.17 4.61 3.85 5.33 MEAN OF MIXING RATIO AT 15 GMT. 3.82 3.63 4.14 6.55 8.26 9.20 9.86 10.02 8.27 5.71 5.52 4.83 6.65 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.0 -6.5 -2.5 0.0 9.5 14.0 16.5 15.5 12.0 6.0 2.5 -3.0 -14.0 DAY 12 22 1 2 1 9 2 29 29 7 17 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.5 13.5 22.5 27.0 34.0 40.0 42.0 43.0 38.0 32.0 26.0 19.5 43.0 DAY 1 14 28 18 17 20 29 17 10 4 1 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 15.0 7.0 20.0 7.0 15.0 0.0 0.0 0.0 5.0 5.0 14.0 11.0 20.0 DAY 14 17 16 26 8 ** ** ** 16 8 26 9 MONTHLY TOTAL PRECIPITATION IN MM. 29.0 12.0 37.0 24.0 35.5 0.0 0.0 0.0 5.0 5.0 30.0 26.0 203.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 38.3 29.2 2.5 30.0 NO. OF DAYS WITH PRECIPITATION. 3 2 3 7 6 0 0 0 1 1 8 3 34 NO. OF DAYS PRECIPITATION EQUAL 3 2 3 7 6 0 0 0 1 1 8 3 34 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 2 0 1 0 0 0 0 0 1 1 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 85 79 72 69 54 42 52 59 56 67 86 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 33 38 34 31 20 15 19 21 21 33 45 31 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 88 61 46 50 41 30 26 29 35 39 53 73 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 1 0 0 0 0 0 0 0 0 0 0 19 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 19 17 0 0 0 0 43 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 0 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 16 30 30 31 25 6 0 0 138 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 14 12 0 0 0 0 27 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 14 6 1 0 0 0 0 0 0 0 14 63 DATE OF START AND END FREEZING START = 12 DEC. END = 2 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.5 3.7 12.1 17.4 18.7 26.9 30.1 30.0 25.0 17.1 11.7 1.5 16.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.1 -1.3 5.7 10.6 11.7 18.2 21.9 21.5 16.7 9.6 6.0 -2.6 9.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.9 8.6 18.6 24.0 25.8 35.8 38.2 38.5 33.2 24.5 17.1 5.4 23.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.0 9.9 12.9 13.4 14.1 17.6 16.3 17.0 16.5 14.9 11.1 8.0 13.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.91 3.41 4.12 5.50 6.72 7.20 8.41 8.28 7.63 4.81 5.12 3.59 5.72 MEAN OF MIXING RATIO AT 09 GMT. 3.19 3.37 4.79 5.07 5.61 7.08 8.85 9.71 6.33 3.64 5.06 2.53 5.44 MEAN OF MIXING RATIO AT 15 GMT. 4.26 3.86 4.96 5.54 6.40 7.37 9.09 9.98 7.46 5.33 6.22 3.78 6.19 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -9.0 -0.5 4.0 4.5 12.0 18.0 18.0 13.5 -1.0 1.0 -6.0 -11.0 DAY 31 1 17 2 2 1 14 20 22 21 30 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 16.5 23.0 27.5 31.0 39.0 40.0 41.5 39.5 30.5 24.5 8.5 41.5 DAY 6 13 8 8 28 11 16 16 4 6 3 15 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.0 19.0 15.0 8.0 12.0 0.0 0.0 0.0 0.0 3.5 13.0 30.0 30.0 DAY 29 5 25 21 10 ** ** ** ** 18 15 4 MONTHLY TOTAL PRECIPITATION IN MM. 22.0 26.0 32.0 13.5 29.0 0.0 0.0 0.0 0.0 6.0 47.0 55.0 230.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 34.7 18.4 0.0 46.9 NO. OF DAYS WITH PRECIPITATION. 3 3 4 3 6 0 0 0 0 2 7 4 32 NO. OF DAYS PRECIPITATION EQUAL 3 3 4 3 6 0 0 0 0 2 7 4 32 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 1 0 1 0 0 0 0 0 2 2 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 80 59 58 65 46 45 45 55 50 69 90 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 39 48 38 27 27 20 20 22 19 19 42 46 31 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 66 63 42 32 37 22 22 25 30 38 65 82 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 6 0 0 0 0 0 0 0 0 0 9 17 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 23 18 1 0 0 0 47 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 30 31 31 30 1 0 0 127 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 5 0 0 0 0 7 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 12 19 1 0 0 0 0 0 0 1 0 22 55 DATE OF START AND END FREEZING START = 21 OCT. END = 17 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.8 6.8 9.0 17.7 23.0 28.8 30.2 27.4 25.9 18.0 13.0 7.1 17.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.2 0.9 3.3 10.6 15.2 20.1 21.3 19.6 17.0 10.5 7.2 2.3 10.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.9 12.8 14.4 24.7 30.9 37.5 39.1 35.2 34.8 25.4 18.8 11.8 24.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.1 11.8 11.1 14.1 15.7 17.4 17.8 15.6 17.8 14.9 11.6 9.5 13.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.91 3.44 4.28 5.82 7.05 8.39 9.66 8.57 6.32 5.25 5.60 4.15 6.04 MEAN OF MIXING RATIO AT 09 GMT. 4.10 3.12 4.13 5.36 5.96 6.69 7.70 7.00 5.62 5.31 5.22 3.81 5.33 MEAN OF MIXING RATIO AT 15 GMT. 5.01 3.69 4.24 6.02 7.54 8.65 9.13 9.54 8.38 6.16 6.38 4.58 6.61 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.5 -7.5 -6.0 5.0 8.5 15.0 15.5 17.0 12.5 3.0 3.5 -3.5 -11.5 DAY 4 24 11 7 6 5 29 12 28 31 21 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 20.5 23.0 30.5 38.5 42.5 41.5 39.0 38.5 32.5 24.0 18.0 42.5 DAY 22 14 29 21 31 26 8 6 3 1 4 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 24.0 5.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 13.0 17.0 24.0 DAY 2 2 8 27 ** ** ** ** ** ** 13 18 MONTHLY TOTAL PRECIPITATION IN MM. 48.0 28.0 9.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 27.0 28.5 143.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 59.2 2.1 0.0 38.7 NO. OF DAYS WITH PRECIPITATION. 6 2 3 1 0 0 0 0 0 0 3 6 21 NO. OF DAYS PRECIPITATION EQUAL 6 2 3 1 0 0 0 0 0 0 3 6 21 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 0 0 0 0 0 0 0 0 1 1 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 86 70 73 61 54 49 52 51 44 54 76 76 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 53 36 44 28 22 17 19 21 17 26 39 44 31 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 49 48 38 31 26 23 31 32 41 61 66 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 11 4 5 0 0 0 0 0 0 0 0 0 20 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 10 14 9 0 0 0 0 34 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 19 30 31 31 29 2 0 0 145 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 15 0 0 0 0 0 20 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 15 12 12 0 0 0 0 0 0 0 0 7 46 DATE OF START AND END FREEZING START = 5 DEC. END = 15 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 7.6 9.1 10.9 15.3 23.6 28.0 29.0 29.1 29.2 16.7 12.7 7.3 18.2 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.0 2.9 5.3 8.0 16.0 19.8 20.9 20.8 20.9 12.0 6.0 1.7 11.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 14.3 15.4 16.6 22.5 31.1 36.1 37.0 37.5 37.5 21.4 19.4 12.8 25.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.3 12.5 11.3 14.5 15.1 16.3 16.1 16.7 16.6 9.4 13.4 11.1 13.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.90 4.53 5.58 5.35 8.90 8.97 10.21 11.37 11.44 6.84 5.16 4.07 7.19 MEAN OF MIXING RATIO AT 09 GMT. 2.16 2.68 4.12 4.26 6.28 6.82 7.56 8.35 8.61 5.74 5.85 4.80 5.60 MEAN OF MIXING RATIO AT 15 GMT. 4.66 4.73 5.32 5.15 8.27 9.01 10.36 9.20 9.23 6.68 6.43 4.59 6.97 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.5 -1.5 -2.5 0.0 10.0 14.5 16.5 16.0 16.0 3.5 -2.6 -3.5 -3.5 DAY 9 12 22 2 7 6 11 29 29 27 30 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 23.5 23.0 22.0 30.0 34.5 40.0 41.0 40.0 40.0 32.5 25.0 17.0 41.0 DAY 30 1 9 19 28 29 19 4 4 3 7 22 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.0 11.0 17.0 13.0 2.0 0.0 21.0 1.0 1.0 17.0 3.0 6.0 21.0 DAY 6 27 4 7 20 ** 26 6 6 27 26 7 MONTHLY TOTAL PRECIPITATION IN MM. 6.0 25.0 62.0 19.0 2.5 0.0 21.5 1.0 1.0 61.0 5.0 17.0 221.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 42.1 9.7 10.6 37.6 NO. OF DAYS WITH PRECIPITATION. 2 6 7 2 2 0 2 1 1 10 2 5 40 NO. OF DAYS PRECIPITATION EQUAL 2 6 7 2 1 0 1 1 1 10 2 4 37 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 3 1 0 0 1 0 0 1 0 0 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 67 72 51 56 41 48 55 55 63 62 76 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 20 23 33 26 22 18 20 20 22 39 42 50 28 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 56 54 35 37 27 32 26 26 55 60 62 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 16 19 19 0 0 0 62 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 21 30 31 31 30 5 0 0 149 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 7 3 3 0 0 0 14 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 15 7 3 2 0 0 0 0 0 0 1 7 35 DATE OF START AND END FREEZING START = 30 NOV. END = 8 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.2 6.5 11.5 16.5 22.5 28.0 29.6 28.6 24.8 19.7 12.8 7.6 17.8 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.9 1.2 5.0 8.3 13.9 20.1 21.0 20.5 16.1 12.1 6.2 1.7 10.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.6 11.9 17.9 24.6 31.0 35.8 38.2 36.7 33.4 27.2 19.4 13.4 24.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.7 10.7 12.9 16.3 17.1 15.7 17.2 16.2 17.3 15.1 13.2 11.7 14.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.91 4.05 5.35 7.49 9.05 11.51 13.42 13.97 8.20 6.83 5.11 3.69 7.72 MEAN OF MIXING RATIO AT 09 GMT. 3.67 3.40 4.14 7.54 6.75 10.15 13.44 10.60 7.67 5.59 4.25 3.97 6.76 MEAN OF MIXING RATIO AT 15 GMT. 4.24 4.17 5.68 8.73 7.97 13.24 15.25 14.57 10.26 7.77 4.71 4.27 8.40 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.5 -4.0 0.0 0.0 9.0 16.5 15.5 16.0 12.5 7.5 -1.5 -7.5 -7.5 DAY 21 12 4 2 3 27 28 31 28 24 15 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.5 20.0 25.0 31.0 37.0 41.0 42.0 40.0 38.0 32.0 27.0 21.0 42.0 DAY 31 28 18 23 29 13 13 8 10 6 8 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 27.0 10.0 8.0 13.0 4.0 0.0 5.0 2.0 0.0 9.0 7.0 20.0 27.0 DAY 19 16 1 26 6 ** 27 25 ** 16 13 17 MONTHLY TOTAL PRECIPITATION IN MM. 56.0 31.5 25.5 45.0 4.0 0.0 14.0 2.0 0.0 12.0 13.5 30.0 233.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 48.4 21.0 6.9 23.8 NO. OF DAYS WITH PRECIPITATION. 7 7 5 6 1 0 4 1 0 2 4 3 40 NO. OF DAYS PRECIPITATION EQUAL 6 7 5 6 1 0 4 1 0 2 3 3 38 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 0 2 0 0 0 0 0 0 0 1 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 78 70 74 64 54 65 70 57 64 68 70 68 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 48 42 32 36 23 26 35 29 24 26 29 42 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 60 53 51 33 43 43 43 41 48 43 58 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 1 0 0 0 0 0 0 0 0 0 3 5 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 11 22 15 1 0 0 0 49 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 4 23 30 31 31 27 4 0 0 150 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 8 1 0 0 0 0 12 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 13 12 3 2 0 0 0 0 0 0 3 10 43 DATE OF START AND END FREEZING START = 15 NOV. END = 6 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.0 1.4 10.6 17.8 21.3 27.2 29.7 28.6 24.1 19.1 ***** 7.4 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -4.1 -4.0 4.9 10.6 13.7 18.4 21.1 20.3 15.0 10.6 ***** 2.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.1 6.8 16.4 25.0 29.0 36.1 38.3 36.9 33.2 27.7 ***** 12.6 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.2 10.8 11.5 14.4 15.3 17.7 17.2 16.6 18.2 17.1 ***** 10.4 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.69 2.96 5.63 7.75 8.45 10.26 12.36 11.57 7.48 6.08 ***** 4.48 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.14 3.59 6.85 7.08 7.29 8.40 9.75 8.73 7.56 7.34 ***** 4.77 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.57 3.80 7.98 10.18 11.26 13.65 15.93 13.95 12.45 7.98 ***** 5.11 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.0 -10.5 -1.0 4.0 7.0 13.0 16.5 17.0 8.5 5.5 ***** -2.5 ****** DAY 5 15 31 1 1 2 1 20 23 23 ** 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 15.5 23.0 29.5 37.5 40.5 42.0 40.0 38.0 33.0 ***** 20.0 ****** DAY 2 28 27 28 25 28 9 4 3 5 ** 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 10.0 16.0 2.5 10.0 1.5 2.0 0.0 0.0 0.0 ***** 19.0 ****** DAY 29 14 11 13 7 7 16 ** ** ** ** 13 MONTHLY TOTAL PRECIPITATION IN MM. 18.0 31.0 49.5 3.5 10.5 1.5 2.0 0.0 0.0 0.0 ***** 60.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 56.0 8.8 1.1 34.1 NO. OF DAYS WITH PRECIPITATION. 4 4 8 2 2 1 1 0 0 0 *** 8 *** NO. OF DAYS PRECIPITATION EQUAL 4 4 7 2 1 1 1 0 0 0 *** 8 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 0 1 0 0 0 0 0 *** 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 79 81 65 58 51 54 52 51 62 *** 80 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 59 58 35 30 23 23 22 24 31 *** 52 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 75 78 62 54 43 44 39 50 46 *** 63 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 17 16 0 0 0 0 0 0 0 0 *** 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 18 11 0 0 *** 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 *** 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 10 30 31 31 24 9 *** 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 11 2 0 0 *** 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 *** 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 25 1 0 0 0 0 0 0 0 *** 12 *** DATE OF START AND END FREEZING START = 6 DEC. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.9 4.7 10.4 16.3 23.0 27.9 30.0 29.2 26.2 18.0 13.6 6.0 17.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.3 -0.7 3.9 9.3 14.3 19.0 22.1 20.5 16.6 10.3 6.3 0.2 10.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.1 10.2 17.0 23.3 31.6 36.9 37.9 37.9 35.8 25.6 20.9 11.7 24.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.4 10.9 13.1 14.0 17.3 17.9 15.8 17.4 19.1 15.3 14.6 11.5 14.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.49 3.87 4.88 7.15 9.31 11.77 14.29 13.03 9.99 6.83 5.84 3.89 7.86 MEAN OF MIXING RATIO AT 09 GMT. 3.36 4.23 5.61 6.90 10.14 12.46 14.45 13.42 11.26 7.70 5.77 4.21 8.29 MEAN OF MIXING RATIO AT 15 GMT. 4.23 4.74 5.81 8.19 11.64 17.87 20.33 18.83 17.33 8.52 6.34 4.53 10.70 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.5 -3.5 -3.5 2.5 9.0 13.5 17.0 17.0 14.0 6.0 0.0 -9.5 -9.5 DAY 11 13 21 3 15 7 1 21 16 18 14 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 18.0 22.5 32.0 37.0 40.5 42.0 41.0 39.0 31.0 26.0 20.5 42.0 DAY 5 19 12 27 25 29 28 5 14 1 4 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.0 25.0 1.5 8.0 3.5 0.0 0.0 0.0 0.0 5.5 8.0 10.0 25.0 DAY 2 10 17 4 13 ** ** ** ** 29 13 25 MONTHLY TOTAL PRECIPITATION IN MM. 33.5 72.0 4.0 21.0 3.5 0.0 0.0 0.0 0.0 11.5 8.0 14.0 167.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 65.4 14.6 0.0 20.0 NO. OF DAYS WITH PRECIPITATION. 7 7 3 4 1 0 0 0 0 4 1 3 30 NO. OF DAYS PRECIPITATION EQUAL 6 7 3 4 1 0 0 0 0 2 1 3 27 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 3 0 0 0 0 0 0 0 0 0 1 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 84 71 67 66 59 60 61 66 66 75 79 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 53 57 46 39 36 32 36 33 31 37 36 49 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 71 56 52 49 56 55 55 64 55 57 65 60 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 6 0 0 0 0 0 0 0 0 0 0 8 14 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 9 18 10 0 0 0 0 38 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 4 24 30 31 31 30 3 0 0 153 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 9 6 0 0 0 0 17 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 23 19 6 0 0 0 0 0 0 0 1 15 64 DATE OF START AND END FREEZING START = 14 NOV. END = 22 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.4 4.3 9.7 17.3 20.3 26.0 29.0 28.2 24.1 19.7 11.6 2.8 16.5 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.0 -1.0 4.6 10.5 13.0 17.8 20.9 19.5 15.2 13.7 4.6 -4.1 9.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.8 9.5 14.8 24.2 27.7 34.2 37.2 36.8 33.1 25.8 18.6 9.5 23.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.8 10.5 10.2 13.7 14.7 16.4 16.3 17.3 17.9 12.1 14.0 13.6 13.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.98 3.66 5.62 6.92 8.63 10.83 9.07 10.93 8.70 7.49 4.46 4.46 7.06 MEAN OF MIXING RATIO AT 09 GMT. 3.93 3.93 5.83 7.67 8.01 10.74 9.33 9.25 9.25 7.18 5.05 4.53 7.06 MEAN OF MIXING RATIO AT 15 GMT. 4.55 4.28 6.49 9.17 10.75 13.37 14.17 15.16 11.66 8.89 6.75 4.75 9.17 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.0 -6.6 -4.5 4.5 7.0 12.5 17.5 11.5 9.5 9.5 -6.5 -12.0 -12.0 DAY 4 13 11 14 5 1 9 28 28 9 28 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.0 15.5 22.0 31.0 33.5 39.0 41.5 42.0 39.0 28.5 25.0 16.0 42.0 DAY 31 20 24 25 29 29 7 6 8 5 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 10.0 32.0 15.0 8.0 0.0 0.0 0.0 0.0 4.0 0.0 20.0 32.0 DAY 3 22 25 4 25 ** ** ** ** 22 ** 12 MONTHLY TOTAL PRECIPITATION IN MM. 22.0 20.5 86.0 21.5 26.0 0.0 0.0 0.0 0.0 8.5 0.0 46.0 230.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 55.7 20.6 0.0 23.6 NO. OF DAYS WITH PRECIPITATION. 6 4 8 3 6 0 0 0 0 3 0 7 37 NO. OF DAYS PRECIPITATION EQUAL 6 4 7 3 6 0 0 0 0 3 0 7 36 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 2 1 0 0 0 0 0 0 0 1 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 86 84 82 66 76 64 42 55 57 62 55 82 68 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 57 55 56 41 34 32 24 23 29 34 37 59 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 68 72 60 53 46 41 49 50 59 67 69 59 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 8 1 0 0 0 0 0 0 0 2 17 29 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 16 6 0 0 0 0 25 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 4 6 30 31 30 24 0 0 0 125 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 3 0 0 0 0 5 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 18 19 2 0 0 0 0 0 0 0 4 21 64 DATE OF START AND END FREEZING START = 15 NOV. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -2.5 0.7 2.4 11.2 ***** 21.7 28.0 26.0 22.1 17.4 12.3 6.1 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -11.1 -8.9 -7.3 0.7 ***** 9.5 17.2 17.8 12.7 8.5 5.5 1.6 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.1 10.3 12.2 21.6 23.9 33.9 38.8 34.3 31.5 26.2 19.0 10.6 22.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 17.2 19.2 19.5 20.9 ***** 24.4 21.6 16.5 18.8 17.7 13.5 9.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.28 3.62 3.92 6.65 9.83 12.20 15.63 14.42 9.83 7.72 6.14 4.30 8.13 MEAN OF MIXING RATIO AT 09 GMT. 3.03 2.62 4.93 6.84 13.96 19.40 24.52 21.89 17.47 9.29 5.40 2.79 11.01 MEAN OF MIXING RATIO AT 15 GMT. 3.82 4.09 5.03 8.34 14.45 20.76 22.78 22.28 17.34 11.25 7.89 4.78 11.90 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.0 -14.5 -13.0 -6.0 ***** 5.5 11.5 13.0 7.5 5.5 -5.0 -7.5 ****** DAY 29 17 12 3 ** 5 5 31 30 27 27 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 16.5 21.0 27.5 33.0 39.0 44.5 38.5 34.5 30.5 24.0 16.5 44.5 DAY 19 22 30 21 30 30 1 24 25 14 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.0 15.0 20.0 23.0 18.0 4.0 0.0 2.0 0.0 0.0 5.0 7.0 23.0 DAY 8 25 15 27 2 8 ** 12 ** ** 8 15 MONTHLY TOTAL PRECIPITATION IN MM. 14.0 25.0 50.0 42.5 41.0 6.0 0.0 2.0 0.0 0.0 5.0 20.5 206.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 43.2 43.4 1.0 12.4 NO. OF DAYS WITH PRECIPITATION. 3 3 7 6 7 2 0 1 0 0 1 5 35 NO. OF DAYS PRECIPITATION EQUAL 3 3 7 6 7 2 0 1 0 0 1 5 35 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 2 1 1 0 0 0 0 0 0 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 81 75 77 87 74 68 68 62 63 74 81 75 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 50 32 52 44 69 55 53 61 57 41 37 32 49 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 71 67 62 84 71 66 74 76 75 80 79 74 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 30 23 25 4 *** 0 0 0 0 0 1 2 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 *** 0 1 3 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 3 29 31 28 28 1 0 0 120 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 10 0 0 0 0 0 10 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 29 30 15 *** 0 0 0 0 0 3 10 *** DATE OF START AND END FREEZING START = 27 NOV. END = 28 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.7 5.8 8.9 16.6 20.4 25.9 28.4 27.9 25.4 17.1 8.9 6.6 16.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.4 0.6 3.3 9.3 12.8 16.9 19.8 19.2 16.7 9.7 3.9 1.5 9.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.8 10.9 14.4 23.9 27.9 34.9 37.0 36.5 34.2 24.4 13.8 11.8 23.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.2 10.3 11.1 14.7 15.1 18.0 17.2 17.3 17.5 14.7 9.9 10.3 13.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.10 4.17 5.15 8.23 8.42 10.31 13.02 13.26 11.26 7.07 5.22 4.33 7.80 MEAN OF MIXING RATIO AT 09 GMT. 2.87 3.37 5.21 9.40 10.76 12.08 15.18 18.03 15.08 5.73 5.16 3.75 8.88 MEAN OF MIXING RATIO AT 15 GMT. 4.11 5.03 6.34 10.46 11.57 13.71 17.08 19.41 16.37 7.85 6.09 5.21 10.27 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.5 -5.5 -3.0 5.0 7.0 13.0 17.5 14.5 12.5 5.5 -4.0 -2.5 -7.5 DAY 10 18 23 10 8 1 4 5 23 9 30 2 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.5 17.5 24.0 30.5 32.5 40.0 40.0 38.5 38.0 31.5 21.0 17.0 40.0 DAY 30 28 31 20 19 29 2 12 1 1 2 26 24 HOUR MAXIMUM PRECIPITATION IN MM. 28.0 34.0 14.0 13.0 2.0 3.0 0.0 0.0 0.0 0.0 9.0 8.0 34.0 DAY 8 21 8 29 6 3 ** ** ** ** 3 2 MONTHLY TOTAL PRECIPITATION IN MM. 30.0 88.0 36.0 28.0 2.0 3.0 0.0 0.0 0.0 0.0 35.0 16.0 238.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 64.7 13.9 0.0 21.4 NO. OF DAYS WITH PRECIPITATION. 2 6 5 4 1 1 0 0 0 0 7 2 28 NO. OF DAYS PRECIPITATION EQUAL 2 6 5 4 1 1 0 0 0 0 7 2 28 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 3 1 2 0 0 0 0 0 0 0 0 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 80 76 81 66 62 70 75 74 63 80 84 74 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 46 39 47 47 43 32 36 44 42 30 47 42 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 77 76 70 68 59 48 56 64 61 58 75 77 66 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 16 3 0 0 0 0 0 0 0 0 1 0 20 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 7 5 1 0 0 0 14 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 11 29 31 31 28 2 0 0 133 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 1 0 0 0 0 0 2 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 14 4 0 0 0 0 0 0 0 4 7 55 DATE OF START AND END FREEZING START = 15 NOV. END = 23 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.7 6.0 11.8 17.3 ***** ***** 29.5 28.6 24.4 18.2 13.8 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 0.4 0.1 4.7 8.9 ***** ***** 20.6 19.3 14.5 10.1 7.0 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.0 12.0 18.8 25.7 ***** ***** 38.3 37.7 34.2 26.4 20.6 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.6 11.9 14.1 16.8 ***** ***** 17.7 18.4 19.7 16.3 13.6 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.05 3.85 5.36 7.52 ***** ***** 14.60 13.06 10.04 8.44 6.76 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 5.04 4.20 7.53 12.08 ***** ***** 28.23 18.30 16.88 11.60 5.35 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 5.56 4.53 7.82 11.76 ***** ***** 27.46 19.82 18.09 11.75 5.44 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.5 -4.5 0.0 1.5 ***** ***** 17.0 17.0 12.0 7.0 4.0 ***** ****** DAY 19 19 17 4 ** ** 1 27 20 26 29 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.5 18.5 25.5 34.0 ***** ***** 41.5 41.5 38.0 29.5 23.5 ***** ****** DAY 3 27 30 23 ** ** 30 3 1 1 1 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.0 25.0 21.0 12.0 ***** ***** 0.0 0.0 0.0 10.0 37.0 ***** ****** DAY 17 1 12 29 ** ** ** ** ** 23 26 ** MONTHLY TOTAL PRECIPITATION IN MM. 36.0 31.0 27.0 19.0 ***** ***** 0.0 0.0 0.0 18.0 102.0 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 40.3 8.2 0.0 51.5 NO. OF DAYS WITH PRECIPITATION. 6 2 3 3 *** *** 0 0 0 2 7 *** *** NO. OF DAYS PRECIPITATION EQUAL 6 2 3 3 *** *** 0 0 0 2 7 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 1 *** *** 0 0 0 1 4 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 86 81 77 76 *** *** 76 74 77 81 78 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 47 57 60 *** *** 66 44 59 56 34 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 61 70 71 *** *** 70 53 75 64 41 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 3 0 0 *** *** 0 0 0 0 0 *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** 12 3 0 0 0 *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** 0 0 0 0 0 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 5 *** *** 31 29 29 0 0 *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** 13 5 0 0 0 *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** 0 0 0 0 0 *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 14 1 0 *** *** 0 0 0 0 0 *** *** DATE OF START AND END FREEZING START = 6 JAN. END = 17 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** 13.5 22.1 26.1 29.0 ***** 25.8 17.9 10.6 7.9 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** 6.1 15.0 17.2 21.9 ***** 17.6 11.1 4.4 2.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** 20.9 29.2 34.9 36.2 36.9 34.0 24.8 16.8 13.6 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** 14.8 14.2 17.7 14.3 ***** 16.4 13.7 12.4 11.4 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** 8.59 10.16 12.22 11.17 10.05 8.95 6.59 4.48 4.16 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** 13.33 12.88 16.24 10.13 11.51 10.99 6.97 4.79 4.71 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** 13.36 ***** ***** ***** ***** 11.50 7.28 5.03 4.73 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** 0.0 6.0 14.0 18.4 ***** 13.0 6.0 0.5 -1.0 ****** DAY ** ** ** 4 2 15 16 ** 21 17 13 4 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** 27.0 35.5 38.5 39.0 40.0 38.0 29.0 23.0 20.0 ****** DAY ** ** ** 21 31 4 3 23 17 1 3 27 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** 12.0 6.0 4.5 0.0 0.0 0.0 0.0 1.0 5.0 ****** DAY ** ** ** 3 8 27 ** ** ** ** 16 25 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** 35.5 14.5 6.5 0.0 0.0 0.0 0.0 1.0 11.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** 82.5 0.0 17.5 NO. OF DAYS WITH PRECIPITATION. *** *** *** 7 4 2 0 0 0 0 1 3 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** 7 4 2 0 0 0 0 1 3 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** 1 0 0 0 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** 93 78 72 56 55 61 65 71 78 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** 90 52 50 29 32 34 35 38 47 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** 91 *** *** *** *** 38 48 53 61 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 *** 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** 0 0 4 16 *** 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 12 29 29 23 25 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 1 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** 1 0 0 0 *** 0 0 0 9 *** DATE OF START AND END FREEZING START = 1 DEC. END = 4 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 6.6 5.4 9.3 17.5 22.6 28.1 30.9 29.8 23.9 20.7 11.2 6.7 17.7 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.7 -0.9 4.0 11.4 15.9 21.2 22.8 21.8 15.9 14.1 6.9 2.7 11.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.4 11.6 14.7 23.6 29.3 35.1 38.9 37.8 31.9 27.2 15.6 10.7 24.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.7 12.5 10.7 12.2 13.4 13.9 16.1 16.0 16.0 13.1 8.7 8.0 12.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.63 3.52 4.19 5.40 7.27 9.86 11.81 9.80 7.34 6.29 5.60 4.59 6.61 MEAN OF MIXING RATIO AT 09 GMT. 4.20 6.89 4.30 5.40 7.39 10.08 10.72 9.43 7.50 5.98 5.80 4.98 6.89 MEAN OF MIXING RATIO AT 15 GMT. 4.13 5.00 4.58 5.63 9.69 9.18 10.73 11.51 8.48 6.74 5.95 5.21 7.24 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.0 -6.0 -3.5 1.0 8.0 15.0 19.0 19.0 10.0 8.5 3.0 -2.5 -7.0 DAY 29 7 10 12 6 4 8 31 15 30 27 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.5 17.5 21.5 31.5 35.5 38.5 41.0 41.0 38.5 31.5 19.0 15.0 41.0 DAY 7 18 24 26 28 27 14 18 1 6 21 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 3.5 0.0 3.0 1.0 0.0 0.0 0.0 0.0 0.0 0.5 14.0 15.0 15.0 DAY 16 ** 4 28 ** ** ** ** ** 21 13 10 MONTHLY TOTAL PRECIPITATION IN MM. 6.5 0.0 12.0 1.0 0.0 0.0 0.0 0.0 0.0 0.5 29.5 34.0 83.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 22.2 1.2 0.0 76.6 NO. OF DAYS WITH PRECIPITATION. 2 0 5 1 0 0 0 0 0 1 3 3 15 NO. OF DAYS PRECIPITATION EQUAL 2 0 5 1 0 0 0 0 0 0 3 3 14 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 2 2 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 85 72 54 57 56 60 53 57 56 79 85 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 48 84 43 32 32 30 27 24 27 26 51 62 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 76 51 33 39 27 24 28 33 39 65 76 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 8 0 0 0 0 0 0 0 0 0 0 10 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 3 14 26 14 0 1 0 0 58 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 12 29 31 24 23 5 0 0 127 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 12 2 0 0 0 0 14 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 11 18 5 0 0 0 0 0 0 0 0 7 41 DATE OF START AND END FREEZING START = 22 DEC. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.5 5.6 10.7 17.9 22.0 28.6 30.8 29.3 25.4 18.9 14.3 10.2 18.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.3 1.0 5.3 11.6 15.3 21.4 24.3 22.1 17.6 11.5 7.4 5.1 11.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.4 10.2 15.8 24.4 28.7 35.9 37.5 36.4 33.3 26.3 21.3 15.1 24.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.7 9.2 10.5 12.8 13.4 14.5 13.2 14.3 15.7 14.8 13.9 10.0 12.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.83 3.86 4.98 6.58 7.71 9.34 12.21 11.32 8.69 6.37 5.07 4.98 7.08 MEAN OF MIXING RATIO AT 09 GMT. 4.04 3.87 5.14 6.51 7.98 7.78 10.58 10.60 8.74 6.48 5.57 5.41 6.89 MEAN OF MIXING RATIO AT 15 GMT. 4.27 4.05 5.27 7.81 8.00 9.33 12.81 12.27 10.26 7.28 6.18 5.69 7.77 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.5 -5.0 -3.0 3.5 9.5 17.0 21.0 18.0 14.5 7.0 4.0 0.0 -5.5 DAY 11 28 3 7 2 4 25 7 28 25 27 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 18.5 22.0 32.5 33.5 39.0 41.5 40.0 37.5 33.5 24.0 19.0 41.5 DAY 30 7 28 16 8 28 11 29 2 1 4 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 8.5 7.0 2.0 3.0 0.0 0.0 3.5 0.0 0.0 1.5 13.0 13.0 DAY 2 10 9 5 14 ** ** 2 ** ** 16 4 MONTHLY TOTAL PRECIPITATION IN MM. 19.5 26.0 17.5 3.5 7.0 0.0 0.0 7.0 0.0 0.0 1.5 21.0 103.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 61.2 10.2 6.8 21.8 NO. OF DAYS WITH PRECIPITATION. 7 7 4 2 3 0 0 2 0 0 1 2 28 NO. OF DAYS PRECIPITATION EQUAL 7 6 4 2 3 0 0 2 0 0 1 2 27 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 1 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 90 82 76 69 63 52 56 59 59 65 68 77 68 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 52 51 37 35 22 26 29 28 31 35 51 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 61 52 42 35 26 34 37 41 47 54 67 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 1 0 0 0 0 0 0 0 0 0 0 6 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 2 19 31 17 2 0 0 0 72 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 13 28 30 20 28 8 0 0 130 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 4 1 0 0 0 0 5 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 16 12 5 0 0 0 0 0 0 0 0 1 34 DATE OF START AND END FREEZING START = 6 DEC. END = 6 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.4 9.8 10.2 18.0 24.6 29.3 29.7 30.6 24.7 20.4 10.3 7.5 18.4 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.4 4.0 4.9 12.2 18.4 22.3 22.3 23.7 16.9 13.2 5.3 2.6 12.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.6 15.5 15.5 23.8 30.8 36.4 36.8 37.5 32.6 27.5 15.3 12.4 24.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.2 11.5 10.6 11.6 12.4 14.1 14.5 13.8 15.7 14.3 10.0 9.8 12.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.96 3.77 4.48 5.78 7.31 8.99 11.54 10.57 9.01 6.46 5.38 4.53 6.81 MEAN OF MIXING RATIO AT 09 GMT. 4.26 3.87 4.53 5.41 6.16 8.20 10.44 9.16 8.81 6.42 5.61 4.85 6.48 MEAN OF MIXING RATIO AT 15 GMT. 4.34 4.15 4.65 5.99 7.58 8.70 13.07 11.81 9.95 7.09 5.80 5.19 7.36 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -1.0 0.5 4.0 11.0 17.5 19.0 18.5 10.0 7.5 -2.4 -2.0 -5.0 DAY 4 7 18 10 21 8 13 31 28 28 30 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.5 20.0 21.0 29.0 37.5 39.5 40.5 40.0 37.5 38.0 20.5 19.0 40.5 DAY 28 27 11 30 31 28 5 1 19 7 19 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.5 3.5 10.0 2.0 0.0 0.0 6.5 0.0 0.0 7.0 20.0 9.0 20.0 DAY 17 6 2 24 ** ** 16 ** ** 26 9 10 MONTHLY TOTAL PRECIPITATION IN MM. 21.5 4.5 18.5 3.0 0.0 0.0 17.5 0.0 0.0 13.0 69.0 16.5 163.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.2 1.8 10.7 60.2 NO. OF DAYS WITH PRECIPITATION. 6 2 3 2 0 0 4 0 0 2 6 6 31 NO. OF DAYS PRECIPITATION EQUAL 6 2 3 2 0 0 4 0 0 2 6 5 30 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 0 0 0 0 0 0 3 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 65 74 57 49 48 61 51 67 61 86 87 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 53 37 44 30 22 22 29 23 30 28 52 54 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 65 46 51 37 32 25 37 33 42 42 66 73 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 0 3 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 7 23 24 30 1 1 0 0 86 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 19 30 26 31 20 11 0 0 137 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 1 0 0 0 0 4 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 15 4 0 0 0 0 0 0 0 0 1 5 25 DATE OF START AND END FREEZING START = 30 NOV. END = 22 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.3 6.5 10.0 20.7 25.0 28.1 ***** 29.0 25.6 17.1 9.9 6.3 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 0.7 0.9 4.5 13.8 18.1 20.4 ***** 21.3 17.2 10.7 4.7 2.3 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.8 12.2 15.6 27.5 32.0 35.6 ***** 36.8 33.9 23.4 14.9 10.3 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.1 11.3 11.1 13.7 13.9 15.2 ***** 15.6 16.7 12.7 10.2 8.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.51 3.57 3.61 6.73 8.24 9.50 ***** 10.36 10.01 7.23 5.30 4.99 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.71 3.73 3.75 7.11 7.30 7.61 ***** 10.44 9.06 7.29 5.35 5.55 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.96 3.99 4.14 7.09 8.15 9.80 ***** 13.73 11.29 7.88 5.76 5.61 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -5.8 -2.0 8.0 12.0 13.0 ***** 19.0 15.5 6.0 0.5 -2.5 ****** DAY 18 9 10 1 11 13 ** 13 27 30 11 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.0 18.6 21.5 32.0 36.5 41.0 ***** 40.0 38.5 29.0 22.5 13.5 ****** DAY 2 24 21 20 26 24 ** 27 10 12 3 25 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.5 18.0 7.0 2.0 0.0 0.0 ***** 0.0 0.0 17.5 8.5 31.5 ****** DAY 28 14 23 22 ** ** ** ** ** 15 6 11 MONTHLY TOTAL PRECIPITATION IN MM. 34.5 20.0 7.0 3.0 0.0 0.0 ***** 0.0 0.0 35.0 35.0 63.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 31.1 1.5 0.0 67.4 NO. OF DAYS WITH PRECIPITATION. 5 2 1 2 0 0 *** 0 0 6 9 4 *** NO. OF DAYS PRECIPITATION EQUAL 5 2 1 2 0 0 *** 0 0 5 8 4 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 0 0 0 0 *** 0 0 1 0 3 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 77 60 60 55 55 *** 54 68 78 84 93 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 49 45 37 32 25 21 *** 27 28 42 50 71 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 65 55 44 36 31 30 *** 42 47 60 68 85 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 2 0 0 0 0 *** 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 3 15 *** 17 1 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 6 23 26 *** 24 21 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 *** 2 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 18 11 4 0 0 0 *** 0 0 0 0 6 *** DATE OF START AND END FREEZING START = 13 DEC. END = 16 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.0 7.4 12.3 ***** 22.9 27.4 29.0 29.3 25.5 19.1 11.7 8.4 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -0.0 1.5 6.6 ***** 14.9 18.6 20.9 21.2 17.4 11.9 6.1 3.9 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.0 13.3 18.0 ***** 31.0 36.2 37.0 37.4 33.5 26.3 17.4 12.9 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.0 11.8 11.4 ***** 16.1 17.6 16.1 16.2 16.1 14.4 11.3 9.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.78 3.66 4.80 ***** 8.16 9.73 10.93 11.17 8.71 6.86 4.98 5.23 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.06 4.06 5.12 ***** 6.91 7.99 9.63 9.61 8.53 6.87 5.25 5.65 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.28 4.23 5.70 ***** 8.49 11.32 13.17 12.36 10.86 7.68 5.70 5.86 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.5 -3.0 1.0 ***** 10.5 14.0 19.0 17.0 13.5 7.0 -3.5 -3.0 ****** DAY 29 13 12 ** 19 10 1 28 22 30 20 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.5 20.0 23.5 ***** 38.0 41.5 40.5 41.0 37.5 35.0 25.0 20.0 ****** DAY 14 28 8 ** 15 26 8 21 19 6 6 31 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 0.5 13.5 ***** 13.0 0.5 1.0 12.0 0.0 4.0 8.5 8.0 ****** DAY ** 19 10 ** 4 12 19 12 ** 26 30 1 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 0.5 28.0 ***** 18.5 0.5 1.0 14.5 0.0 9.0 15.0 17.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.3 18.2 14.8 39.7 NO. OF DAYS WITH PRECIPITATION. 0 1 4 *** 5 1 1 3 0 5 4 6 *** NO. OF DAYS PRECIPITATION EQUAL 0 0 4 *** 4 0 1 2 0 4 4 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 *** 1 0 0 1 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 75 71 *** 59 56 56 59 59 68 73 85 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 44 43 *** 26 23 25 24 27 32 43 59 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 58 57 *** 37 35 37 39 46 49 59 77 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 0 0 *** 0 0 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 *** 1 9 12 17 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 19 29 27 28 27 4 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 4 4 5 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 19 9 0 *** 0 0 0 0 0 0 2 4 *** DATE OF START AND END FREEZING START = 20 NOV. END = 23 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** 8.5 12.5 15.5 21.1 26.6 29.3 29.1 26.3 ***** 12.1 4.2 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** 2.2 5.6 10.3 13.6 18.8 22.0 20.7 17.6 ***** 6.2 0.3 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 14.9 19.5 20.6 28.6 34.3 36.6 37.6 35.0 ***** 18.0 8.0 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 12.7 13.9 10.3 15.0 15.5 14.6 16.9 17.4 ***** 11.8 7.7 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 3.83 4.27 6.96 7.70 9.13 11.07 11.82 8.85 ***** 5.59 4.08 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 3.77 4.27 6.97 6.38 6.61 9.22 11.55 8.76 ***** 6.03 3.82 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 4.18 4.83 7.61 7.73 9.75 11.95 12.47 10.60 ***** 6.23 4.32 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -3.0 -0.5 4.5 8.0 14.5 17.0 17.5 15.0 ***** 0.5 -4.0 ****** DAY ** 5 7 4 5 15 2 30 15 ** 30 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 19.5 26.5 27.4 37.6 38.5 41.0 41.0 37.5 ***** 24.0 12.0 ****** DAY ** 13 27 29 27 28 19 10 3 ** 11 8 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** 12.0 7.0 31.5 9.0 0.0 0.5 0.0 0.0 ***** 11.0 7.5 ****** DAY ** 14 19 3 4 ** 30 ** ** ** 26 13 MONTHLY TOTAL PRECIPITATION IN MM. ***** 50.5 17.0 88.5 15.5 0.0 0.5 0.0 0.0 ***** 22.5 39.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 28.9 44.5 0.2 26.3 NO. OF DAYS WITH PRECIPITATION. *** 6 3 7 3 0 1 0 0 *** 7 8 *** NO. OF DAYS PRECIPITATION EQUAL *** 6 3 7 3 0 0 0 0 *** 5 8 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** 1 0 3 0 0 0 0 0 *** 1 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 74 63 74 60 50 55 62 57 *** 80 87 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 37 31 49 28 20 24 32 25 *** 48 55 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 51 42 57 36 31 34 38 42 *** 65 75 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 *** 0 1 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 0 0 0 7 23 12 0 *** 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 *** 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 13 29 31 27 30 *** 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 2 5 0 *** 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 *** 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** 8 1 0 0 0 0 0 0 *** 0 14 *** DATE OF START AND END FREEZING START = 6 DEC. END = 7 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.9 7.2 10.3 16.3 20.0 26.2 30.9 28.3 23.4 20.5 10.5 6.1 17.1 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.6 2.3 5.1 10.5 12.5 17.7 22.3 20.1 15.0 12.7 4.5 2.0 10.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.2 12.1 15.5 22.1 27.4 34.6 39.5 36.6 31.7 28.3 16.6 10.2 23.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.6 9.8 10.4 11.6 14.9 16.9 17.2 16.5 16.7 15.5 12.1 8.2 13.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.93 4.18 4.95 7.08 7.74 9.95 12.43 11.06 8.44 6.78 4.60 4.39 7.13 MEAN OF MIXING RATIO AT 09 GMT. 4.16 4.23 5.18 7.62 7.11 8.14 10.53 10.38 8.23 6.65 4.56 4.58 6.78 MEAN OF MIXING RATIO AT 15 GMT. 4.53 4.49 5.38 8.59 7.92 10.86 14.11 13.34 10.28 7.54 5.11 4.79 8.08 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.5 -4.0 -4.0 0.5 4.0 11.5 18.0 17.5 11.5 7.5 -0.5 -4.0 -4.0 DAY 20 18 2 18 1 6 1 2 21 18 19 14 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.0 16.0 20.5 32.9 32.0 39.5 43.5 39.0 37.0 32.5 23.0 16.0 43.5 DAY 13 9 25 7 16 23 17 1 7 10 2 19 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.0 12.0 18.5 33.0 5.5 0.0 0.0 0.0 0.0 4.0 4.0 10.0 33.0 DAY 29 14 8 14 29 ** ** ** ** 27 30 2 MONTHLY TOTAL PRECIPITATION IN MM. 6.0 36.5 39.0 91.5 6.0 0.0 0.0 0.0 0.0 5.5 4.5 25.5 214.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 38.0 45.5 0.0 16.6 NO. OF DAYS WITH PRECIPITATION. 2 6 7 8 2 0 0 0 0 2 2 7 36 NO. OF DAYS PRECIPITATION EQUAL 2 6 7 6 1 0 0 0 0 2 1 7 32 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 2 4 0 0 0 0 0 0 0 1 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 79 77 76 64 59 60 62 67 60 73 85 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 48 47 50 31 24 24 27 28 27 37 57 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 61 58 62 43 37 36 40 48 44 56 74 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 1 1 0 0 0 0 0 0 0 0 2 4 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 24 9 0 0 0 0 37 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 8 28 31 30 16 8 0 0 122 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 14 0 0 0 0 0 14 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 10 5 4 0 0 0 0 0 0 0 3 11 33 DATE OF START AND END FREEZING START = 19 NOV. END = 5 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE PERIOD 1964 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. 3.2 5.3 10.2 16.3 21.5 26.5 29.4 28.1 24.3 18.0 11.1 5.7 16.6 SD OF MEAN DAILY TEMPERATURE IN C. 2.63 2.44 2.03 1.90 1.56 1.65 1.02 1.42 1.70 1.88 1.82 2.22 1.86 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.0 -0.4 4.0 9.2 13.8 17.7 20.7 19.4 15.5 10.4 4.8 0.5 9.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.4 11.0 16.4 23.4 29.1 35.3 38.0 36.9 33.1 25.6 17.4 10.9 23.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.4 11.3 12.6 14.3 15.5 17.6 17.3 17.5 17.6 15.2 12.6 10.4 14.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.48 3.71 4.63 6.32 8.05 9.45 10.94 10.59 8.43 6.46 4.93 4.04 6.75 MEAN OF MIXING RATIO AT 09 GMT. 3.82 3.85 4.95 6.56 7.73 8.91 10.97 10.72 8.95 6.72 5.09 4.25 6.87 MEAN OF MIXING RATIO AT 15 GMT. 3.97 4.12 5.33 7.27 8.59 10.30 12.61 12.64 10.47 7.62 5.60 4.50 7.75 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.0 -17.0 -13.0 -6.0 4.0 5.5 11.5 9.5 5.5 -1.0 -6.5 -12.0 -18.0 YEAR - DAY 92-29 72-11 92-12 92- 3 3- 1 92- 5 73- 1 75-29 75-24 84-21 91-28 91-17 92-29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 23.5 23.0 27.0 34.0 39.5 42.5 44.5 43.5 40.0 38.0 34.0 21.0 44.5 YEAR - DAY 87-30 87- 1 70-31 94-23 70-17 74-30 92- 1 73- 2 87- 4 99- 7 67- 2 88- 8 92- 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 50.0 41.0 40.0 33.0 18.0 11.3 21.0 12.0 8.0 40.0 37.0 31.5 50.0 YEAR - DAY 69-23 72-17 79-26 3-14 92- 2 72-14 87-26 1-12 65-30 82-28 94-26 0-11 69-23 MONTHLY TOTAL PRECIPITATION IN MM. 33.7 31.0 31.3 23.7 11.3 2.7 2.8 1.7 0.6 13.4 20.8 28.7 201.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 47.7 18.7 2.4 31.2 NO. OF DAYS WITH PRECIPITATION. 5 4 5 4 3 1 1 0 0 2 3 4 32 NO. OF DAYS PRECIPITATION EQUAL 5 4 5 4 2 1 0 0 0 2 3 4 30 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 1 1 0 0 0 0 0 0 1 1 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 78 70 65 61 54 54 57 58 63 71 80 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 48 43 37 31 25 27 28 28 32 41 52 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 62 54 48 41 34 35 39 43 49 58 68 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 10 5 1 0 0 0 0 0 0 0 0 4 20 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 6 16 9 1 0 0 0 33 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 2 14 29 31 30 25 4 0 0 135 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 7 2 0 0 0 0 10 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 15 5 1 0 0 0 0 0 0 3 14 60 DATE OF START AND END FREEZING START = 21 OCT. END = 28 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AMINABAD LATITUDE 35 35 N DATA PROCESSING CENTER LONGITUDE 51 28 E ELEVATION 1000 MET. MEAN AND EXTREMES FOR THE PERIOD 1964 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. 3.6 5.7 11.0 17.5 22.9 28.6 31.0 29.5 25.4 18.7 11.4 5.9 17.6 AVERAGE DEW POINT TEMPERATURE. IN C. -2.1 -1.8 1.4 5.6 8.4 10.7 13.6 13.4 10.4 6.1 2.1 -0.6 5.6 AVERAGE OF MIXING RATIO IN G/KG 3.81 3.90 4.98 6.74 8.04 9.45 11.55 11.28 9.26 6.92 5.20 4.29 7.12 AVERAGE OF VAPOUR PRESSURE HPA 5.46 5.59 7.14 9.65 11.52 13.53 16.48 16.11 13.24 9.92 7.45 6.15 10.19 AVERAGE OF SATURATION DEFICIT IN HPA 2.93 4.18 6.86 11.47 17.99 27.60 30.61 27.31 21.20 13.07 6.83 3.63 14.47 AVERAGE RELATIVE HUMIDITY IN PERCENT 70 63 56 50 44 37 39 41 43 48 57 67 51 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 85 81 72 67 62 54 55 57 59 65 75 83 68 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 53 46 41 36 29 23 26 27 27 32 40 49 36 NO. OF DAYS PRECIPITATION EQUAL 2 2 3 2 1 0 0 0 0 1 2 2 15 OR MORE THAN 5 MM.