IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1964 -9.1 5.6 7.5 9.5 14.2 19.7 25.7 24.0 19.4 11.2 5.9 -4.3 34.8 1965 -4.5 ****** 6.1 7.6 15.8 19.5 22.2 21.0 17.7 12.8 7.6 1.9 ****** 1966 2.5 1.6 4.1 8.7 15.9 20.3 22.5 22.3 17.6 12.4 6.0 1.6 20.9 1967 -4.3 -2.0 2.4 7.2 14.2 18.6 23.3 21.5 16.6 11.1 4.5 -0.4 27.6 1968 -2.8 -2.7 6.0 7.8 12.9 17.6 20.3 20.8 16.4 11.9 6.6 1.6 23.6 1969 -2.4 -0.8 7.5 9.7 15.0 19.3 23.2 21.9 13.8 17.3 4.6 2.5 25.6 1970 -1.9 2.1 5.0 13.1 18.4 22.1 24.6 24.3 19.4 12.6 6.7 -3.1 27.7 1971 -6.9 -3.1 4.4 7.0 14.1 19.0 22.7 21.9 16.3 10.9 5.0 -1.1 29.6 1972 -6.4 ****** ****** ****** ****** ****** ****** ****** 16.4 12.0 6.7 -1.9 ****** 1973 -4.7 1.9 5.1 10.0 14.2 19.4 22.7 20.8 17.6 12.3 5.5 0.8 27.4 1974 -6.5 -4.9 5.5 9.7 14.2 19.2 21.0 21.1 16.4 10.2 6.8 -4.8 27.6 1975 -4.9 -4.8 2.5 8.6 14.7 18.9 22.7 22.0 17.1 11.0 5.2 -1.0 27.6 1976 ****** -2.4 -0.2 8.4 13.3 18.7 23.4 21.0 17.1 11.8 6.4 3.3 ****** 1977 -10.1 0.4 8.3 9.1 14.0 19.7 23.9 22.1 17.8 11.8 5.3 2.4 34.0 1978 0.1 2.4 4.1 10.2 14.2 19.4 21.4 21.9 18.0 12.4 3.6 3.5 21.8 1979 -2.3 1.4 4.1 10.2 12.9 18.6 22.3 20.5 16.9 12.3 6.4 ****** ****** 1980 -4.7 -2.9 3.4 11.4 15.0 20.3 21.1 21.0 16.7 12.0 6.5 0.1 25.8 1981 -2.1 0.4 5.8 9.4 13.8 17.8 21.2 21.4 15.9 10.3 5.7 2.5 23.5 1982 -2.5 -3.2 1.6 12.4 16.0 21.3 22.2 22.9 17.7 10.4 2.9 -3.5 26.4 1983 -5.9 -3.7 0.4 8.5 15.7 19.9 22.8 22.1 18.3 10.7 5.8 -0.2 28.7 1984 -3.3 -0.5 ****** 10.4 12.1 19.4 21.5 22.5 17.5 10.1 6.0 -0.6 ****** 1985 -0.7 0.1 4.7 9.4 14.1 20.1 22.8 20.7 17.5 11.5 6.3 0.0 23.5 1986 -0.4 -1.0 3.5 9.8 13.6 18.3 21.4 19.9 15.4 12.3 4.3 -3.1 24.5 1987 -1.9 -0.4 2.4 9.9 16.1 19.4 20.9 20.7 17.5 11.1 7.0 2.4 22.8 1988 -0.7 -2.8 4.7 10.1 15.2 19.2 22.7 21.1 17.9 13.1 5.6 1.9 25.5 1989 -7.3 -5.9 3.2 10.2 14.2 19.5 22.1 21.8 17.8 11.2 ****** 1.5 ****** 1990 -2.4 -1.2 4.8 9.0 15.5 21.5 ****** ****** ****** ****** ****** 1.6 ****** 1991 -1.4 0.5 5.0 10.4 13.5 18.4 23.3 23.2 19.0 12.3 6.8 0.6 24.7 1992 -6.0 -2.7 0.8 8.5 13.1 18.3 22.7 21.3 16.0 11.6 6.9 0.9 28.7 1993 -1.6 -0.9 2.9 8.4 13.2 18.3 21.4 21.0 18.6 11.9 7.2 4.8 23.0 1994 0.8 1.3 5.0 10.2 13.7 19.2 24.3 24.0 16.9 12.1 6.3 0.2 24.1 1995 0.9 0.6 4.7 9.6 14.0 18.3 23.1 22.5 18.5 12.1 7.6 -1.9 25.0 1996 -4.7 2.1 3.9 9.9 15.0 19.6 21.1 21.2 18.8 12.8 6.8 3.4 25.9 1997 -0.8 0.6 2.7 8.8 14.1 18.9 24.0 22.8 17.8 13.6 5.9 -0.3 24.8 1998 -3.3 -0.0 5.0 10.9 15.0 19.4 22.3 21.7 18.2 12.6 8.5 7.6 25.6 1999 0.4 2.8 4.3 10.5 15.5 19.7 22.6 22.4 18.1 13.0 7.1 3.3 22.2 2000 -0.2 -1.9 4.8 12.9 15.6 19.6 22.3 21.8 18.5 12.4 5.1 1.9 24.2 2001 -0.9 1.4 6.1 11.6 15.7 20.1 23.7 22.4 18.5 14.6 6.4 3.3 24.6 2002 -1.1 1.9 6.4 9.4 15.0 19.0 21.5 22.0 19.3 13.6 5.9 1.0 23.1 2003 -0.1 1.9 4.7 10.8 13.8 19.0 23.7 21.8 17.9 13.1 6.3 1.9 23.8 MEAN -2.9 -0.5 4.3 9.7 14.5 19.3 22.6 21.8 17.5 12.1 6.0 0.8 25.5 SD 2.88 2.48 1.88 1.39 1.18 0.93 1.16 0.99 1.16 1.31 1.11 2.55 1.59 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 -17.4 3.0 1.2 2.4 3.7 8.1 15.4 12.7 8.1 0.9 -1.9 -11.2 2.1 1965 -9.6 ****** -0.2 1.1 7.5 10.0 12.9 12.2 8.1 5.2 0.0 -6.0 ****** 1966 -3.6 -4.7 -2.9 1.7 8.3 11.1 13.4 13.1 7.5 4.7 -3.4 -5.9 3.3 1967 -11.1 -7.5 -3.2 1.4 7.0 9.8 14.3 11.5 6.4 2.0 -3.3 -7.7 1.6 1968 -9.3 -9.2 0.2 1.4 5.1 7.7 10.8 11.2 5.1 1.9 -0.1 -4.2 1.7 1969 -8.3 -7.3 1.6 1.8 5.8 7.8 11.9 12.1 3.7 6.2 -3.7 -4.9 2.2 1970 -8.9 -6.3 -2.9 4.1 8.3 9.9 14.5 13.6 7.5 0.6 -3.9 -11.8 2.1 1971 -16.5 -12.7 -3.8 -1.2 4.5 7.7 13.2 11.7 5.6 -0.2 -1.7 -8.5 -0.1 1972 -13.7 -17.4 -4.4 2.6 4.5 8.8 12.3 9.9 6.3 2.2 -1.2 -7.5 0.2 1973 -11.7 -4.8 -1.5 3.0 5.3 8.6 12.8 11.4 7.2 1.7 -3.9 -6.7 1.8 1974 -14.2 -12.1 0.0 3.7 6.0 9.8 12.7 12.1 6.5 0.7 -2.8 -13.6 0.7 1975 -11.7 -12.0 -4.8 1.9 6.6 10.4 13.7 12.9 7.7 0.1 -2.7 -7.8 1.2 1976 ****** -9.2 -6.8 2.4 6.3 9.7 14.9 12.3 7.4 2.6 -1.3 -5.3 ****** 1977 -18.6 -8.7 0.5 2.8 6.3 10.7 14.6 12.9 7.5 3.8 -1.5 -2.7 2.3 1978 -6.0 -3.6 -2.7 2.8 6.3 10.3 12.5 12.1 7.6 2.0 -3.4 -2.9 2.9 1979 -8.4 -5.3 -2.9 2.9 5.6 9.7 12.5 11.4 6.6 2.8 -3.0 ****** ****** 1980 -10.8 -10.1 -1.8 4.7 8.5 10.9 11.4 10.7 6.5 2.2 -1.9 -7.4 1.9 1981 -7.7 -5.9 -0.2 3.8 5.7 8.7 11.7 11.3 5.3 0.4 -2.1 -5.2 2.2 1982 -8.4 -9.8 -4.2 5.5 8.5 11.6 12.6 12.6 8.2 3.2 -3.6 -10.3 2.2 1983 -11.1 -10.1 -5.6 2.1 8.6 10.1 13.1 12.0 7.6 0.3 -3.4 -7.8 1.3 1984 -11.3 -8.7 ****** 3.2 5.0 10.4 12.3 12.3 6.2 -0.3 -0.7 -7.6 ****** 1985 -8.1 -7.1 -2.4 2.2 5.7 10.2 13.0 11.1 6.2 0.2 -2.2 -6.8 1.8 1986 -8.8 -8.2 -2.9 3.7 6.7 8.7 12.5 10.5 4.9 2.1 -2.2 -9.6 1.4 1987 -10.3 -8.3 -3.8 2.4 7.3 10.0 11.5 11.2 6.9 3.2 -2.1 -4.1 2.0 1988 -7.9 -10.5 -2.6 2.5 6.0 9.8 12.6 10.2 5.7 1.8 -3.3 -5.3 1.6 1989 -15.3 -14.7 -3.9 2.3 5.3 9.1 12.7 11.8 6.9 0.1 ****** -5.2 ****** 1990 -9.0 -8.9 -2.4 0.8 6.1 11.6 ****** ****** ****** ****** ****** -7.0 ****** 1991 -8.1 -6.0 -1.4 2.5 4.7 7.7 12.0 11.3 7.4 3.5 -2.9 -4.4 2.2 1992 -12.3 -8.7 -5.5 2.4 6.5 9.1 14.1 13.2 7.1 2.1 0.5 -3.7 2.1 1993 -6.3 -5.9 -1.4 2.0 6.5 9.7 13.5 12.6 9.1 4.0 1.5 -2.4 3.6 1994 -4.8 -4.8 -1.1 2.9 6.6 10.7 15.8 15.1 8.5 4.6 1.2 -4.9 4.2 1995 -5.0 -4.7 -1.2 4.1 7.2 10.1 14.7 13.9 9.8 3.4 -0.5 -7.7 3.7 1996 -10.2 -2.4 -0.4 3.8 7.7 11.3 14.2 13.3 9.2 4.3 -0.7 -2.9 3.9 1997 -6.6 -5.2 -1.9 2.7 7.3 11.1 15.9 13.6 8.6 6.1 0.1 -6.1 3.8 1998 -8.9 -5.0 -0.1 4.6 7.7 11.2 14.6 13.5 9.3 3.6 -0.7 0.5 4.2 1999 -4.2 -2.4 -1.0 4.1 7.1 11.0 14.9 14.4 8.6 4.1 1.1 -4.0 4.5 2000 -5.6 -8.7 -1.9 5.4 6.8 10.5 14.2 13.1 9.4 4.3 -0.8 -2.9 3.7 2001 -7.4 -5.1 -1.2 3.8 8.1 11.1 15.4 13.7 9.5 6.8 -0.2 -1.1 4.5 2002 -6.7 -3.9 -0.5 4.1 7.4 10.9 13.5 13.0 9.9 4.7 -0.1 -3.5 4.1 2003 -6.1 -3.5 -1.0 4.7 6.1 10.1 15.0 12.6 8.2 4.0 -1.2 -3.1 3.8 MEAN -9.5 -7.3 -2.1 2.9 6.5 9.9 13.4 12.3 7.4 2.7 -1.6 -5.9 2.4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 -0.7 8.1 13.7 16.7 24.7 31.4 35.9 35.4 30.6 21.5 13.7 2.5 19.5 1965 0.6 ****** 12.3 14.1 24.2 28.9 31.5 29.7 27.4 20.4 15.1 9.7 ****** 1966 8.6 7.8 11.2 15.8 23.6 29.5 31.6 31.6 27.7 20.1 15.4 9.0 19.3 1967 2.5 3.6 8.0 13.1 21.3 27.3 32.4 31.6 26.7 20.2 12.3 7.0 17.2 1968 3.7 3.9 11.9 14.2 20.6 27.4 29.8 30.5 27.7 21.8 13.3 7.5 17.7 1969 3.5 5.7 13.3 17.6 24.2 30.8 34.6 31.6 24.0 28.4 12.9 9.9 19.7 1970 5.1 10.4 13.0 22.2 28.5 34.2 34.8 35.0 31.2 24.6 17.4 5.6 21.8 1971 2.6 6.6 12.6 15.1 23.8 30.2 32.3 32.1 26.9 22.0 11.7 6.3 18.5 1972 1.4 ****** ****** ****** ****** ****** ****** ****** 26.6 21.8 14.7 3.8 ****** 1973 2.3 8.5 11.7 16.9 23.1 30.1 32.6 30.3 28.1 22.9 14.8 8.4 19.1 1974 1.3 2.3 11.1 15.7 22.4 28.6 29.3 30.1 26.3 19.8 16.3 4.1 17.3 1975 2.0 2.3 9.7 15.4 22.8 27.3 31.7 31.1 26.4 21.9 13.2 5.9 17.5 1976 ****** 4.4 6.3 14.3 20.3 27.6 32.0 29.8 26.8 21.0 14.0 11.9 ****** 1977 -1.6 9.5 16.1 15.4 21.8 28.7 33.2 31.2 28.0 19.9 12.1 7.6 18.5 1978 6.1 8.4 10.9 17.7 22.1 28.6 30.3 31.8 28.3 22.8 10.6 9.8 18.9 1979 3.7 8.1 10.5 17.3 20.0 27.5 32.0 29.7 27.2 21.8 15.8 3.5 18.1 1980 1.3 4.2 8.6 18.1 21.6 29.7 30.8 31.3 27.0 21.7 14.9 7.7 18.1 1981 3.9 6.5 12.1 15.5 21.8 26.8 30.7 31.4 26.5 20.2 13.4 10.2 18.3 1982 3.5 3.4 7.4 19.3 23.5 30.9 31.9 33.1 27.2 17.6 9.5 3.3 17.6 1983 -0.6 2.6 6.5 14.9 22.7 29.6 32.5 32.2 28.9 21.1 15.1 7.3 17.7 1984 4.8 7.7 11.1 17.6 19.2 28.5 30.8 32.6 28.8 20.5 12.8 6.1 18.4 1985 7.0 7.4 11.9 16.5 22.4 30.0 32.6 30.3 28.8 22.5 15.3 6.8 19.3 1986 8.0 6.2 10.0 15.8 20.4 27.9 30.2 29.3 26.0 22.6 10.9 3.5 17.6 1987 6.4 7.5 8.6 17.4 25.0 28.9 30.4 30.1 28.1 19.0 16.2 8.8 18.9 1988 6.4 4.9 11.9 17.7 24.4 28.6 32.8 31.9 30.1 24.5 14.6 9.0 19.7 1989 0.7 2.7 10.3 18.0 23.1 29.8 31.5 31.9 28.7 22.2 ****** 8.2 ****** 1990 4.3 6.5 12.0 17.2 24.9 31.4 ****** ****** ****** ****** 16.1 10.3 ****** 1991 5.2 7.0 11.5 18.3 22.4 29.0 34.7 35.2 30.5 21.1 16.5 5.7 19.8 1992 0.2 3.3 7.0 14.5 19.6 27.4 31.3 29.5 24.9 21.0 13.4 5.6 16.5 1993 3.2 4.1 7.2 14.7 19.8 26.9 29.4 29.4 28.1 19.9 12.7 12.1 17.3 1994 6.5 7.3 11.2 17.3 20.8 27.7 32.8 32.8 25.3 19.6 11.4 5.3 18.2 1995 6.8 5.9 10.6 15.1 20.9 26.4 31.5 31.1 27.2 20.7 15.6 3.9 18.0 1996 0.8 6.6 8.2 16.0 22.3 27.9 28.0 29.1 28.3 21.3 14.2 9.8 17.7 1997 5.0 6.4 7.2 14.9 21.0 26.7 32.1 31.9 27.1 21.1 11.6 5.6 17.6 1998 2.2 5.0 10.2 17.1 22.2 27.7 30.0 30.0 27.1 21.7 17.8 14.7 18.8 1999 5.0 7.9 9.5 16.9 23.9 28.4 30.4 30.3 27.7 22.0 13.2 10.6 18.8 2000 5.2 4.9 11.4 20.4 24.4 28.6 30.3 30.5 27.6 20.5 11.0 6.6 18.5 2001 5.5 7.9 13.4 19.5 23.3 29.0 32.1 31.1 27.5 22.3 12.9 7.6 19.4 2002 4.5 7.7 13.3 14.8 22.6 27.0 29.5 31.1 28.8 22.6 12.0 5.5 18.3 2003 6.0 7.2 10.5 16.8 21.6 27.9 32.4 31.0 27.6 22.3 13.8 7.0 18.7 MEAN 3.7 6.1 10.6 16.6 22.5 28.8 31.7 31.3 27.6 21.5 13.8 7.3 18.4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 16.7 5.1 12.5 14.3 21.0 23.3 20.5 22.7 22.5 20.6 15.6 13.7 17.4 1965 10.2 ****** 12.5 13.0 16.7 18.9 18.6 17.5 19.3 15.2 15.1 15.7 ****** 1966 12.2 12.5 14.1 14.1 15.3 18.4 18.2 18.5 20.2 15.4 18.8 14.9 16.0 1967 13.6 11.1 11.2 11.7 14.3 17.5 18.1 20.1 20.3 18.2 15.6 14.7 15.5 1968 13.0 13.1 11.7 12.8 15.5 19.7 19.0 19.3 22.6 19.9 13.4 11.7 16.0 1969 11.8 13.0 11.7 15.8 18.4 23.0 22.7 19.5 20.3 22.2 16.6 14.8 17.5 1970 14.0 16.7 15.9 18.1 20.2 24.3 20.3 21.4 23.7 24.0 21.3 17.4 19.8 1971 19.1 19.3 16.4 16.3 19.3 22.5 19.1 20.4 21.3 22.2 13.4 14.8 18.7 1972 15.1 ****** ****** ****** ****** ****** ****** ****** 20.3 19.6 15.9 11.3 ****** 1973 14.0 13.3 13.2 13.9 17.8 21.5 19.8 18.9 20.9 21.2 18.7 15.1 17.4 1974 15.5 14.4 11.1 12.0 16.4 18.8 16.6 18.0 19.8 19.1 19.1 17.7 16.5 1975 13.7 14.3 14.5 13.5 16.2 16.9 18.0 18.2 18.7 21.8 15.9 13.7 16.3 1976 ****** 13.6 13.1 11.9 14.0 17.9 17.1 17.5 19.4 18.4 15.3 17.2 ****** 1977 17.0 18.2 15.6 12.6 15.5 18.0 18.6 18.3 20.5 16.1 13.6 10.3 16.2 1978 12.1 12.0 13.6 14.9 15.8 18.3 17.8 19.7 20.7 20.8 14.0 12.7 16.0 1979 12.1 13.4 13.4 14.4 14.4 17.8 19.5 18.3 20.6 19.0 18.8 ****** ****** 1980 12.1 14.3 10.4 13.4 13.1 18.8 19.4 20.6 20.5 19.5 16.8 15.1 16.2 1981 11.6 12.4 12.3 11.7 16.1 18.1 19.0 20.1 21.2 19.8 15.5 15.4 16.1 1982 11.9 13.2 11.6 13.8 15.0 19.3 19.3 20.5 19.0 14.4 13.1 13.6 15.4 1983 10.5 12.7 12.1 12.8 14.1 19.5 19.4 20.2 21.3 20.8 18.5 15.0 16.4 1984 16.1 16.4 ****** 14.4 14.2 18.1 18.5 20.3 22.6 20.8 13.5 13.7 ****** 1985 15.1 14.5 14.3 14.3 16.7 19.8 19.6 19.2 22.6 22.3 17.5 13.6 17.5 1986 16.8 14.4 12.9 12.1 13.7 19.2 17.7 18.8 21.1 20.5 13.1 13.1 16.1 1987 16.7 15.8 12.4 15.0 17.7 18.9 18.9 18.9 21.2 15.8 18.3 12.9 16.9 1988 14.3 15.4 14.5 15.2 18.4 18.8 20.2 21.7 24.4 22.7 17.9 14.3 18.1 1989 16.0 17.4 14.2 15.7 17.8 20.7 18.8 20.1 21.8 22.1 ****** 13.4 ****** 1990 13.3 15.4 14.4 16.4 18.8 19.8 ****** ****** ****** ****** ****** 17.3 ****** 1991 13.3 13.0 12.9 15.8 17.7 21.3 22.7 23.9 23.1 17.6 19.4 10.1 17.6 1992 12.5 12.0 12.5 12.1 13.1 18.3 17.2 16.3 17.8 18.9 12.9 9.3 14.4 1993 9.5 10.0 8.6 12.7 13.3 17.2 15.9 16.8 19.0 15.9 11.2 14.5 13.7 1994 11.3 12.1 12.3 14.4 14.2 17.0 17.0 17.7 16.8 15.0 10.2 10.2 14.0 1995 11.8 10.6 11.8 11.0 13.7 16.3 16.8 17.2 17.4 17.3 16.1 11.6 14.3 1996 11.0 9.0 8.6 12.2 14.6 16.6 13.8 15.8 19.1 17.0 14.9 12.7 13.8 1997 11.6 11.6 9.1 12.2 13.7 15.6 16.2 18.3 18.5 15.0 11.5 11.7 13.7 1998 11.1 10.0 10.3 12.5 14.5 16.5 15.4 16.5 17.8 18.1 18.5 14.2 14.6 1999 9.2 10.3 10.5 12.8 16.8 17.4 15.5 15.9 19.1 17.9 12.1 14.6 14.3 2000 10.8 13.6 13.3 15.0 17.6 18.1 16.1 17.4 18.2 16.2 11.8 9.5 14.8 2001 12.9 13.0 14.6 15.7 15.2 17.9 16.7 17.4 18.0 15.5 13.1 8.7 14.9 2002 11.2 11.6 13.8 10.7 15.2 16.1 16.0 18.1 18.9 17.9 12.1 9.0 14.2 2003 12.1 10.7 11.5 12.1 15.5 17.8 17.4 18.4 19.4 18.3 15.0 10.1 14.9 MEAN 13.1 13.1 12.6 13.7 15.9 18.8 18.2 18.9 20.3 18.8 15.4 13.3 16.0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 1.04 5.99 4.62 4.79 5.10 5.62 7.53 5.55 4.41 2.43 3.03 2.21 4.36 1965 2.34 ****** 3.47 3.82 5.25 5.54 6.49 7.21 4.47 4.91 3.88 2.40 ****** 1966 3.16 2.93 3.33 4.56 5.69 5.50 8.40 8.61 5.63 5.40 2.68 2.71 4.88 1967 1.69 2.61 3.18 4.35 5.98 5.44 10.22 6.93 5.45 4.21 2.92 2.30 4.61 1968 1.93 2.08 3.83 4.98 6.77 7.23 6.59 6.95 4.44 3.79 4.42 2.94 4.66 1969 2.63 2.60 4.45 4.40 5.45 6.15 6.84 6.84 4.21 4.97 3.39 2.56 4.54 1970 2.11 2.33 3.44 4.61 6.52 6.91 7.41 7.52 5.07 3.11 2.01 1.99 4.42 1971 1.18 1.89 3.55 4.94 6.21 6.48 7.50 6.55 4.45 3.44 3.60 2.13 4.33 1972 1.70 1.46 3.24 5.33 5.72 6.11 6.98 6.27 4.81 3.80 3.85 2.82 4.34 1973 2.02 3.38 3.61 4.38 4.71 5.41 7.51 5.47 4.24 2.90 2.65 2.32 4.05 1974 1.51 1.82 3.84 4.40 5.51 6.19 7.64 6.04 4.80 3.90 2.56 1.25 4.12 1975 1.70 1.50 2.95 4.67 5.72 6.60 8.12 6.94 5.00 3.22 3.52 2.28 4.35 1976 ****** 2.42 2.60 4.90 5.56 6.70 10.33 7.08 5.49 4.22 3.27 2.37 ****** 1977 0.84 2.00 4.11 4.74 5.63 7.27 7.16 6.73 4.79 4.34 3.65 3.47 4.56 1978 2.66 3.07 3.23 4.50 4.93 6.77 6.60 5.93 5.06 4.27 3.35 3.60 4.50 1979 2.26 2.78 3.40 4.72 6.04 6.75 7.61 6.64 5.31 4.82 3.08 2.38 4.65 1980 2.17 2.08 3.86 5.42 5.52 6.82 6.70 7.26 5.31 4.24 3.61 2.62 4.63 1981 2.48 3.09 4.12 4.64 5.48 5.65 6.62 5.99 4.66 4.17 3.64 2.67 4.43 1982 2.35 2.17 3.21 4.80 5.96 6.18 5.87 6.72 4.88 5.49 3.70 2.24 4.47 1983 2.10 2.04 2.91 4.68 6.33 5.90 6.73 6.27 5.41 3.47 2.86 2.39 4.26 1984 1.96 2.39 4.34 4.32 5.13 6.38 7.03 6.36 4.91 3.56 4.22 2.03 4.39 1985 2.31 2.49 3.47 4.56 4.56 6.06 6.82 6.14 4.49 3.06 3.71 2.76 4.20 1986 2.52 2.57 3.34 5.51 6.19 6.55 7.71 6.66 4.65 4.08 3.86 2.35 4.67 1987 2.13 2.47 3.54 4.29 5.90 5.52 5.98 5.54 4.92 4.86 3.45 3.29 4.33 1988 2.52 2.09 3.47 4.28 5.00 5.58 7.15 6.39 4.52 3.91 3.33 3.14 4.28 1989 1.71 1.70 3.04 4.10 5.50 5.83 6.70 6.20 4.84 3.62 ****** 2.94 ****** 1990 2.40 2.42 3.39 4.03 5.26 6.68 ****** ****** ****** ****** 2.89 2.83 ****** 1991 2.91 3.18 4.03 4.90 5.04 6.03 6.32 5.95 4.73 5.30 3.45 3.49 4.61 1992 1.96 2.39 2.89 4.53 5.79 6.07 6.70 6.75 4.58 3.43 3.92 3.33 4.36 1993 2.64 2.96 3.75 4.15 5.26 5.34 6.91 6.82 4.87 3.76 3.90 2.96 4.44 1994 2.68 2.58 3.84 4.80 5.51 5.73 8.35 6.67 5.46 5.17 4.21 3.02 4.84 1995 2.69 2.97 3.24 5.28 5.58 5.75 5.89 5.31 5.00 4.00 3.19 2.49 4.28 1996 2.15 3.79 4.12 4.84 5.81 5.54 6.22 5.64 4.81 4.14 3.35 3.35 4.48 1997 2.72 2.73 3.75 4.79 5.31 6.48 8.27 5.67 4.42 4.81 4.15 2.92 4.67 1998 2.48 3.26 4.27 4.85 5.25 5.63 7.14 6.21 5.07 4.08 3.17 3.53 4.58 1999 3.38 3.64 3.71 4.74 4.68 4.96 6.15 5.47 4.26 3.82 4.13 2.93 4.32 2000 2.97 2.23 3.51 4.30 4.13 4.88 6.71 6.24 5.53 5.37 3.06 3.02 4.33 2001 2.37 2.91 3.81 4.03 5.36 4.96 6.07 5.74 4.68 4.72 3.84 4.44 4.41 2002 2.79 3.27 3.71 5.05 4.85 5.09 5.99 5.10 4.77 3.59 4.30 3.48 4.33 2003 2.79 3.29 3.61 5.11 4.80 5.09 6.44 5.22 4.53 4.15 3.44 3.57 4.34 MEAN 2.26 2.66 3.60 4.66 5.48 5.99 7.12 6.35 4.85 4.12 3.47 2.79 4.44 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 3.06 6.23 5.20 4.70 5.02 5.35 7.88 5.93 5.47 2.98 3.58 4.09 4.96 1965 4.11 ****** 3.64 3.80 4.13 6.23 6.62 8.57 4.41 5.13 4.73 4.02 ****** 1966 4.83 4.78 4.95 4.84 5.21 4.87 11.55 14.95 7.12 6.27 3.52 3.60 6.38 1967 3.66 4.39 4.34 4.83 5.47 5.69 15.02 8.30 6.96 3.39 4.10 4.49 5.89 1968 3.78 4.38 4.59 6.24 7.45 7.77 8.15 7.86 7.35 5.31 4.78 4.44 6.01 1969 4.02 4.53 5.46 5.26 5.64 5.87 6.47 6.14 4.22 5.12 4.27 3.86 5.07 1970 3.44 4.23 4.23 5.04 6.12 6.58 8.12 7.89 5.59 3.65 3.31 3.45 5.14 1971 3.13 4.46 4.47 5.22 6.71 7.10 7.28 7.20 4.89 4.22 4.36 3.96 5.25 1972 3.38 3.25 4.82 5.64 5.79 6.39 6.59 5.83 4.77 3.89 4.32 4.15 4.90 1973 3.51 4.83 3.61 4.36 5.41 4.66 7.36 4.85 5.00 3.89 2.73 3.42 4.47 1974 3.07 3.30 5.12 4.32 5.33 5.69 6.70 5.82 4.81 4.41 3.80 3.21 4.63 1975 3.49 3.52 4.37 5.09 6.65 6.84 6.32 5.57 4.84 4.94 4.56 3.79 5.00 1976 ****** 4.30 4.23 5.53 6.57 7.24 9.20 5.61 5.10 4.74 4.51 4.01 ****** 1977 1.93 4.09 5.49 5.09 6.69 7.36 11.26 6.03 4.29 4.98 4.74 4.27 5.52 1978 3.51 4.00 4.29 4.72 5.37 6.33 6.13 7.26 6.33 5.39 4.42 4.54 5.19 1979 3.21 3.68 4.27 4.50 5.76 6.92 7.13 6.71 6.85 6.28 5.14 3.61 5.34 1980 3.03 4.39 4.46 5.09 5.55 6.25 5.80 6.62 6.05 6.12 4.93 4.19 5.21 1981 3.50 3.73 4.24 4.96 5.54 5.84 7.26 6.28 5.25 5.31 4.22 3.67 4.98 1982 2.74 3.10 3.57 5.16 6.16 6.51 6.36 7.25 5.40 5.88 4.34 3.57 5.00 1983 2.84 3.47 3.90 4.96 6.95 6.64 7.12 6.33 5.59 4.83 3.93 3.67 5.02 1984 3.58 3.48 4.99 4.26 5.16 6.78 6.04 5.65 4.89 4.36 4.58 2.97 4.73 1985 4.24 3.30 4.24 4.79 5.13 5.52 5.96 6.46 5.56 3.92 4.89 3.86 4.82 1986 3.73 3.74 4.38 6.40 6.45 6.73 7.24 7.60 5.80 5.59 5.01 3.61 5.52 1987 3.70 3.89 4.31 4.77 6.12 6.60 7.71 6.88 6.76 5.99 5.09 4.13 5.50 1988 3.87 3.77 4.36 5.55 5.98 6.05 7.61 6.65 5.84 5.35 4.54 4.12 5.31 1989 2.63 3.27 3.97 4.95 5.88 5.90 6.70 6.82 6.31 5.42 ****** 3.95 ****** 1990 3.67 3.99 4.17 4.83 6.04 8.07 ****** ****** ****** ****** 4.00 3.69 ****** 1991 4.32 4.12 4.93 5.26 5.42 6.46 7.10 6.64 5.22 5.61 4.27 4.58 5.33 1992 3.29 3.93 4.17 4.73 6.31 6.40 6.59 6.29 4.66 4.28 4.11 4.37 4.93 1993 3.75 4.31 4.44 4.66 5.92 6.28 8.15 8.66 6.46 6.05 4.58 4.69 5.66 1994 3.70 3.78 4.12 5.56 6.01 7.29 11.78 8.22 7.14 6.04 5.35 3.40 6.03 1995 3.80 4.20 4.09 5.78 5.95 5.73 5.72 7.03 5.45 4.63 3.75 3.88 5.00 1996 3.33 4.55 4.35 4.67 6.58 5.86 6.52 6.57 5.78 4.56 4.10 3.87 5.06 1997 3.42 3.43 3.97 4.78 5.64 7.50 13.73 6.76 5.93 4.80 4.92 3.84 5.73 1998 3.52 3.93 4.62 4.98 5.61 6.07 7.92 6.53 5.55 5.15 4.15 3.68 5.14 1999 4.23 4.23 4.02 4.64 5.17 5.00 6.01 5.17 4.09 3.94 4.11 3.24 4.49 2000 3.90 3.62 3.13 4.22 4.41 5.24 9.70 9.12 8.70 9.54 6.07 5.35 6.08 2001 4.42 4.53 5.10 4.84 6.26 5.41 6.16 6.49 5.63 6.35 4.27 5.20 5.39 2002 3.70 3.98 3.82 5.35 4.79 5.55 6.26 6.24 6.03 4.33 4.55 4.34 4.91 2003 3.31 4.32 3.96 5.39 5.51 5.85 8.30 6.63 5.83 5.41 3.98 4.09 5.22 MEAN 3.55 4.03 4.36 5.00 5.80 6.27 7.79 6.96 5.70 5.08 4.38 3.98 5.24 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 2.10 5.20 5.02 4.62 5.05 5.25 6.84 5.86 4.68 3.03 3.49 3.12 4.52 1965 3.42 ****** 3.49 3.75 4.30 5.38 5.82 7.35 3.58 4.72 4.56 3.66 ****** 1966 4.41 4.05 4.27 4.55 4.49 4.76 10.96 14.03 6.34 5.27 3.31 3.03 5.79 1967 2.77 3.47 3.93 4.66 5.11 4.34 11.30 6.78 6.01 3.41 3.39 3.17 4.86 1968 2.77 3.34 3.84 5.82 7.26 6.99 6.19 6.74 5.09 4.47 4.66 4.08 5.10 1969 3.12 3.60 4.80 4.92 5.37 5.16 4.97 5.08 3.96 4.21 3.72 2.84 4.31 1970 2.63 3.44 3.90 4.14 4.74 5.83 6.70 6.43 4.60 3.29 2.77 2.60 4.26 1971 2.25 2.96 3.95 4.26 5.51 5.68 5.90 5.80 4.10 3.56 4.49 3.03 4.29 1972 2.69 2.40 3.89 5.24 5.21 5.09 5.20 4.69 4.04 3.35 4.21 3.60 4.13 1973 2.89 4.48 3.81 3.88 4.50 4.22 5.97 3.42 3.50 3.62 3.56 2.68 3.88 1974 2.20 2.68 4.61 3.90 4.55 4.43 5.24 4.71 3.63 3.80 3.59 2.61 3.83 1975 2.73 2.57 3.34 4.24 5.33 5.49 5.06 4.53 3.84 3.72 4.14 3.27 4.02 1976 ****** 3.27 3.62 4.68 5.87 5.68 7.95 4.83 4.24 3.78 3.95 3.83 ****** 1977 1.64 3.70 4.87 4.59 5.90 6.23 9.65 5.33 4.38 4.34 4.15 3.85 4.88 1978 3.18 3.67 3.82 4.45 4.57 4.61 4.78 6.29 5.07 4.60 4.28 4.23 4.46 1979 2.92 3.32 4.00 4.07 5.08 6.41 6.43 5.65 5.60 5.25 4.35 2.97 4.67 1980 2.65 3.36 4.10 4.90 5.23 5.44 5.62 6.24 5.65 5.72 4.67 3.65 4.77 1981 3.16 3.39 3.91 4.59 4.90 5.63 6.12 5.64 5.38 4.60 3.80 3.25 4.53 1982 2.65 2.62 3.36 4.73 5.75 5.93 6.09 6.25 5.21 5.32 4.35 3.55 4.65 1983 2.68 3.10 3.59 4.66 6.30 6.34 6.49 5.74 5.21 4.27 3.18 3.36 4.58 1984 3.18 3.56 4.49 4.06 4.65 6.10 5.52 5.04 4.38 4.02 4.45 2.68 4.35 1985 3.84 3.02 4.03 4.38 4.65 5.02 5.47 5.78 4.83 3.51 4.34 3.35 4.35 1986 3.08 3.05 3.75 6.01 5.64 6.01 6.53 6.78 5.05 4.58 4.13 3.05 4.81 1987 2.83 3.18 3.81 4.39 5.42 5.69 6.92 6.36 5.23 4.86 4.14 3.52 4.70 1988 3.22 3.37 3.82 4.90 4.83 5.45 6.57 5.95 4.91 4.18 3.68 3.40 4.52 1989 2.58 2.66 3.67 4.49 5.25 5.61 5.96 5.74 5.34 4.43 ****** 3.67 ****** 1990 3.04 3.37 4.27 4.63 5.67 7.12 ****** ****** ****** ****** 3.87 3.48 ****** 1991 3.76 3.92 4.77 5.06 4.90 6.09 6.66 6.52 4.96 5.92 4.27 4.18 5.08 1992 2.48 3.10 3.98 4.64 5.82 6.48 6.43 6.11 4.37 4.54 4.62 3.98 4.71 1993 3.39 3.73 4.31 4.57 6.10 6.18 7.36 7.65 5.45 4.99 4.27 3.96 5.16 1994 3.32 3.30 4.33 5.39 6.05 7.39 10.66 7.10 6.25 5.87 5.00 3.61 5.69 1995 3.65 3.57 4.02 5.78 5.86 6.03 6.00 5.98 5.50 4.14 3.55 3.26 4.78 1996 2.69 4.24 4.57 4.81 6.26 5.48 5.82 5.69 5.12 4.90 4.23 3.81 4.80 1997 3.11 3.20 3.77 4.90 5.71 7.10 11.53 5.49 5.01 4.91 4.85 3.48 5.26 1998 3.15 3.87 4.31 4.73 5.23 5.75 7.13 6.00 5.06 4.83 3.92 4.12 4.84 1999 3.66 4.18 4.23 4.76 4.53 5.20 5.94 5.56 4.57 4.19 4.52 3.21 4.55 2000 3.10 3.18 3.14 4.30 4.14 5.25 8.76 8.40 7.46 7.61 5.60 4.53 5.46 2001 3.46 3.98 4.41 4.50 5.59 5.10 6.18 6.01 5.29 5.62 4.11 5.02 4.94 2002 3.65 3.93 4.02 5.10 4.81 5.64 5.65 5.39 5.05 4.13 4.82 4.08 4.69 2003 3.07 3.76 4.36 5.05 5.12 5.73 7.76 5.54 4.86 4.36 4.07 3.93 4.80 MEAN 3.01 3.46 4.06 4.68 5.29 5.69 6.83 6.12 4.95 4.52 4.13 3.52 4.68 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 -27.5 20 1.2 10 -4.5 1 -3.5 12 1.5 2 4.5 1 11.5 1 10.5 3 4.5 26 -3.5 29 -8.5 29 -27.5 20 -27.5 1965 -22.5 16 ***** ** -6.2 17 -4.5 4 1.5 5 6.5 1 8.5 7 9.5 11 -2.5 26 2.5 15 -6.0 25 -16.5 23 ***** 1966 -13.5 16 -11.5 5 -10.5 29 -5.5 1 1.8 9 7.5 1 9.5 23 10.5 24 4.5 5 2.0 24 -10.5 26 -15.5 29 -15.5 1967 -22.0 23 -19.5 6 -10.0 28 -10.5 2 -1.0 1 3.5 7 8.5 28 8.5 28 2.0 27 -3.5 24 -7.5 14 -13.5 24 -22.0 1968 -21.5 19 -21.5 7 -7.0 26 -3.5 6 2.2 4 4.5 1 7.5 18 7.5 27 2.5 21 -3.5 29 -6.5 19 -9.5 31 -21.5 1969 -20.5 12 -18.5 1 -5.0 18 -6.0 14 2.5 24 5.0 20 7.5 8 6.5 30 -1.5 13 1.5 14 -7.5 23 -9.0 9 -20.5 1970 -16.5 29 -14.5 2 -5.5 3 -2.0 25 2.5 9 4.5 12 9.5 26 10.5 25 3.5 20 -5.5 26 -7.5 28 -25.5 17 -25.5 1971 -27.5 26 -25.5 3 -15.0 2 -5.5 24 2.5 11 2.5 3 10.5 23 9.5 19 1.2 23 -2.5 6 -4.5 3 -20.0 22 -27.5 1972 -21.5 4 -26.5 11 -10.0 4 -2.6 6 1.5 7 4.5 13 8.5 13 5.5 27 3.0 12 -1.5 26 -6.5 22 -19.8 26 -26.5 1973 -22.6 20 -15.8 1 -7.5 10 -3.5 11 1.5 7 2.5 6 9.5 29 7.4 24 2.5 21 -3.5 28 -12.5 10 -12.5 22 -22.6 1974 -25.5 25 -25.5 4 -8.5 6 -3.5 12 0.5 2 4.5 9 9.5 1 7.5 31 4.5 4 -4.5 28 -8.5 27 -20.8 28 -25.5 1975 -28.5 23 -23.5 14 -15.5 10 -3.6 2 3.5 2 7.5 1 11.5 4 9.5 26 4.5 27 -3.5 29 -9.5 29 -17.5 26 -28.5 1976 ***** ** -15.5 24 -17.5 3 -2.5 6 2.5 1 4.5 2 11.5 2 9.5 24 4.5 19 -2.5 19 -5.5 20 -9.5 1 ***** 1977 -29.5 23 -16.5 3 -5.5 6 -2.5 17 3.5 1 6.5 4 10.5 7 9.0 30 4.5 20 -2.5 29 -5.5 14 -12.5 26 -29.5 1978 -12.5 17 -10.5 1 -8.5 16 -3.5 1 1.5 3 3.5 23 7.5 10 9.5 14 4.5 25 -4.5 30 -8.5 24 -8.0 18 -12.5 1979 -17.5 28 -12.5 1 -12.5 5 -4.5 29 2.5 1 5.5 1 9.5 3 8.5 30 3.5 25 -3.0 31 -8.5 27 ***** ** ***** 1980 -19.5 1 -21.5 2 -11.5 8 -2.5 17 5.5 13 8.0 13 7.5 1 2.5 25 1.5 25 -3.5 31 -5.5 26 -12.5 14 -21.5 1981 -14.5 7 -13.5 2 -9.5 5 -6.5 2 1.5 3 3.5 6 8.5 31 8.5 31 -2.0 30 -3.5 31 -7.5 24 -8.5 3 -14.5 1982 -12.5 15 -17.5 19 -9.5 5 -2.5 1 6.5 9 8.5 3 10.5 21 7.5 30 2.5 27 -3.5 30 -10.5 15 -15.5 22 -17.5 1983 -19.5 28 -19.0 2 -9.0 7 -3.5 2 3.0 3 7.0 1 11.0 8 5.0 29 4.0 26 -3.5 22 -4.5 10 -16.5 23 -19.5 1984 -18.5 21 -17.5 2 ***** ** -1.5 1 2.5 3 5.5 2 9.5 9 9.5 28 -1.5 30 -4.5 20 -3.5 6 -17.0 31 ***** 1985 -17.5 1 -11.5 23 -13.5 4 -2.5 9 2.5 7 7.5 2 7.5 29 8.5 13 2.5 27 -3.5 23 -4.5 30 -13.5 31 -17.5 1986 -14.5 21 -14.5 17 -5.5 1 -0.5 2 1.5 7 5.5 4 9.5 26 7.0 30 2.0 11 -3.5 26 -8.5 25 -16.5 23 -16.5 1987 -14.5 5 -17.5 13 -10.5 13 -4.5 8 4.5 9 6.5 1 8.5 5 8.5 28 2.5 30 -2.5 13 -9.5 30 -12.5 1 -17.5 1988 -14.5 21 -17.5 6 -9.5 14 -4.5 3 2.5 6 7.5 6 8.5 28 7.5 8 3.4 1 -1.5 10 -9.8 26 -17.5 29 -17.5 1989 -24.5 31 -25.5 7 -10.5 31 -2.5 2 1.5 3 5.5 13 9.5 9 9.5 10 2.2 30 -3.0 10 ***** ** -9.5 18 ***** 1990 -18.5 13 -18.5 1 -11.5 1 -3.5 1 1.5 14 5.4 2 ***** ** ***** ** ***** ** ***** ** ***** ** -19.5 29 ***** 1991 -14.5 29 -12.0 14 -5.5 4 -2.5 14 -0.5 5 3.5 1 8.5 1 8.5 27 3.2 28 -2.2 31 -7.5 27 -12.5 27 -14.5 1992 -24.5 26 -22.2 12 -18.5 2 -3.5 5 1.2 14 6.0 21 9.2 25 9.5 31 4.0 12 -1.5 29 -6.5 27 -10.0 21 -24.5 1993 -14.5 16 -16.5 9 -10.5 13 -2.5 5 1.0 8 5.5 6 11.2 8 9.0 12 3.5 30 1.2 9 -4.8 30 -7.5 13 -16.5 1994 -17.5 28 -10.5 21 -5.5 3 -2.5 4 2.0 7 5.5 6 10.0 1 11.0 27 3.2 23 0.0 13 -4.5 20 -13.5 8 -17.5 1995 -13.7 14 -14.5 11 -6.2 27 -1.8 1 1.5 10 5.5 1 9.0 1 12.0 11 6.0 27 -1.0 16 -12.0 28 -14.5 20 -14.5 1996 -24.5 25 -10.2 6 -4.3 28 -2.5 6 3.0 12 4.0 7 11.5 7 9.0 5 6.0 21 -1.5 19 -5.5 11 -7.4 25 -24.5 1997 -22.6 20 -15.5 2 -7.6 1 -3.4 1 1.0 6 6.5 3 9.4 7 9.2 30 3.0 10 1.0 30 -5.0 25 -16.5 22 -22.6 1998 -18.5 14 -13.6 17 -7.0 4 -0.5 6 1.0 2 8.0 2 11.5 29 10.0 4 5.0 23 -1.2 28 -3.4 27 -6.5 6 -18.5 1999 -12.5 27 -13.5 7 -6.2 8 -4.0 11 1.5 24 7.0 16 11.5 14 11.0 29 3.5 18 0.0 22 -8.6 30 -11.5 13 -13.5 2000 -11.5 24 -21.2 4 -9.2 16 -1.6 2 2.0 13 5.0 1 10.4 21 10.0 30 5.2 27 0.8 19 -6.8 30 -12.2 17 -21.2 2001 -16.5 29 -9.2 13 -6.4 12 -3.0 14 3.0 1 6.5 1 12.0 31 10.0 1 6.5 27 3.4 16 -7.5 25 -9.2 3 -16.5 2002 -15.5 15 -10.2 2 -6.5 8 -3.5 6 1.5 7 5.4 1 10.0 1 9.5 31 6.4 29 -1.0 26 -5.5 30 -16.6 23 -16.6 2003 -15.5 26 -11.0 1 -8.5 2 -0.5 3 0.0 1 7.0 7 9.0 2 10.0 25 5.5 27 1.0 25 -8.0 24 -13.5 31 -15.5 LOW. -29.5 23 -26.5 11 -18.5 2 -10.5 2 -1.0 1 2.5 3 7.5 18 2.5 25 -2.5 26 -5.5 26 -12.5 10 -27.5 20 -29.5 YEAR 1977 1972 1992 1967 1967 1971 1968 1980 1965 1970 1973 1964 1977 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 8.5 31 11.5 23 18.5 24 21.5 6 29.5 31 36.2 10 38.5 11 38.5 15 35.5 4 28.5 1 19.5 16 9.5 6 38.5 1965 8.5 30 ***** ** 17.5 11 22.5 29 28.2 20 33.5 21 38.5 28 33.5 1 32.5 5 26.5 5 27.5 4 14.5 3 ***** 1966 18.2 6 16.5 28 16.5 8 22.2 30 29.5 21 32.5 24 37.4 30 33.5 2 36.5 11 30.0 11 17.5 2 15.2 9 37.4 1967 11.4 18 9.5 27 14.2 14 19.5 24 25.5 13 32.5 30 34.5 12 33.5 3 33.5 9 26.5 4 18.5 1 13.5 17 34.5 1968 11.5 14 12.5 29 18.5 14 21.5 17 25.5 22 31.5 17 35.5 8 32.5 6 32.5 4 26.8 7 19.5 9 12.5 25 35.5 1969 8.5 21 9.5 6 19.5 31 28.5 30 31.0 31 34.5 29 38.5 17 37.5 5 28.0 4 33.5 3 18.5 14 14.5 5 38.5 1970 11.5 3 14.5 22 20.5 29 26.5 16 34.5 19 36.5 5 39.5 29 37.5 1 35.5 1 34.5 12 23.0 2 17.5 1 39.5 1971 14.5 13 17.5 24 19.5 18 22.5 29 26.5 15 33.5 16 34.5 7 34.5 9 33.5 1 25.8 2 20.5 2 17.5 1 34.5 1972 5.5 10 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 29.8 3 25.2 1 18.5 2 13.2 5 ***** 1973 6.5 9 15.2 20 16.2 1 22.5 26 25.5 27 34.5 20 36.5 13 32.5 1 31.5 1 26.5 5 19.5 12 14.5 2 36.5 1974 9.5 1 9.5 25 17.5 21 21.5 23 27.5 28 33.5 23 32.5 2 32.5 1 28.5 10 24.5 1 22.5 1 13.5 1 33.5 1975 9.5 3 9.5 22 16.5 31 20.5 14 28.5 21 32.5 27 33.5 16 39.5 23 28.5 8 26.5 4 21.5 3 9.5 12 39.5 1976 ***** ** 9.5 8 11.5 20 20.2 17 24.5 18 32.5 25 36.5 14 32.5 1 30.5 4 26.5 2 19.5 6 14.5 7 ***** 1977 5.5 1 17.5 25 19.5 14 21.5 14 26.5 14 32.5 26 36.5 15 34.5 15 29.5 1 27.5 1 15.5 7 15.5 5 36.5 1978 11.5 8 13.5 19 16.5 29 21.5 9 26.5 27 32.5 12 33.5 4 33.5 25 31.5 2 26.5 1 15.5 7 13.5 10 33.5 1979 13.5 1 14.5 20 15.5 19 29.5 18 27.5 27 32.5 28 34.5 16 32.5 1 31.5 12 25.6 10 19.5 1 10.5 6 34.5 1980 8.5 28 9.5 13 15.5 26 22.5 21 25.5 27 32.5 22 33.5 30 32.5 2 31.5 2 26.5 1 18.5 4 12.5 1 33.5 1981 9.5 24 10.5 8 16.0 25 23.5 22 26.5 27 30.5 24 35.5 14 34.5 21 31.5 2 24.5 3 18.5 2 12.5 7 35.5 1982 9.5 5 7.5 28 11.5 24 25.5 29 28.5 19 34.5 12 34.5 28 35.5 3 29.5 1 24.5 2 15.5 22 8.5 14 35.5 1983 6.0 3 6.0 6 14.0 28 20.0 16 26.0 21 33.0 18 35.0 25 35.0 12 33.0 1 26.0 1 20.0 3 17.0 4 35.0 1984 9.5 5 14.5 13 22.5 10 22.5 22 25.5 27 32.5 14 33.5 13 35.5 4 32.5 1 24.5 1 19.5 3 12.5 2 35.5 1985 14.0 28 14.5 15 17.5 19 21.5 20 28.5 30 34.5 28 34.5 20 34.5 2 31.5 4 29.5 2 21.5 2 10.5 5 34.5 1986 12.5 10 13.5 28 15.5 5 19.5 18 25.5 20 34.5 29 32.5 1 31.5 4 28.5 27 26.5 4 18.5 1 9.5 9 34.5 1987 13.0 31 14.0 3 14.5 7 23.5 30 27.5 5 31.5 9 33.5 11 31.5 14 32.5 8 29.5 4 19.5 14 14.5 12 33.5 1988 10.5 3 10.5 29 18.2 31 22.5 20 29.5 27 31.5 12 37.5 23 35.5 5 34.5 11 27.5 7 21.5 3 15.2 2 37.5 1989 6.5 22 13.5 28 14.5 3 22.5 12 31.5 26 34.5 30 35.5 9 34.0 27 32.5 1 26.5 12 ***** ** 11.5 26 ***** 1990 9.5 1 10.5 19 17.5 7 22.5 27 29.5 21 34.5 28 ***** ** ***** ** ***** ** ***** ** 18.5 16 17.2 16 ***** 1991 9.2 20 11.5 25 20.5 22 24.5 27 27.2 31 32.5 30 37.2 12 39.2 9 36.2 10 25.0 8 22.2 2 10.5 8 39.2 1992 5.0 1 8.8 22 13.5 29 20.2 13 28.2 30 33.5 30 35.5 1 33.2 6 26.5 25 25.5 4 19.0 4 10.5 1 35.5 1993 8.5 29 12.5 28 13.5 30 21.5 19 27.0 18 30.5 29 32.2 15 32.5 15 30.5 4 25.0 1 17.5 8 15.2 19 32.5 1994 13.5 3 13.0 27 16.2 30 22.5 23 26.8 31 29.5 18 35.5 26 36.0 5 32.0 2 23.6 6 19.2 3 9.5 28 36.0 1995 11.0 28 10.5 3 15.0 30 20.0 30 24.0 21 32.0 21 34.5 17 33.5 7 31.0 13 26.5 5 19.2 1 9.0 1 34.5 1996 8.5 31 11.5 9 16.0 30 20.0 30 28.0 31 29.2 22 30.0 4 31.2 17 32.2 13 28.0 1 21.0 5 15.0 5 32.2 1997 12.5 6 14.0 21 14.5 2 25.5 28 26.0 31 30.5 30 35.0 28 34.2 13 29.5 6 26.5 6 16.0 2 12.4 8 35.0 1998 6.5 9 11.4 6 18.5 29 23.5 16 27.0 28 31.0 12 35.0 11 33.2 18 30.0 2 26.0 1 20.5 18 21.5 10 35.0 1999 11.0 6 12.6 8 18.5 31 21.0 26 29.0 30 31.0 30 34.0 4 32.5 14 31.0 9 25.0 1 16.5 5 16.5 30 34.0 2000 15.0 1 9.5 17 16.0 21 24.0 13 28.0 31 32.5 21 34.5 10 32.0 3 31.5 9 27.5 13 18.0 1 10.5 19 34.5 2001 12.0 3 14.5 28 18.5 31 23.0 25 28.5 14 33.0 25 35.0 4 34.5 10 30.5 3 25.5 1 20.5 5 15.0 29 35.0 2002 15.8 4 12.5 24 19.0 12 23.5 27 29.0 31 29.5 17 33.5 21 33.5 20 31.5 3 26.5 10 18.5 11 9.2 4 33.5 2003 16.0 12 12.5 24 16.5 25 22.0 6 24.5 22 32.0 23 34.5 10 33.0 1 30.5 1 25.0 2 18.6 5 13.5 16 34.5 HIG. 18.2 6 17.5 24 22.5 10 29.5 18 34.5 19 36.5 5 39.5 29 39.5 23 36.5 11 34.5 12 27.5 4 21.5 10 39.5 YEAR 1966 1971 1984 1979 1970 1970 1970 1975 1966 1970 1965 1998 1970 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 2.5 1 25.0 10 28.4 13 20.0 14 5.0 1 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 45.0 25 27.5 12 45.0 1965 22.5 27 ***** ** 60.0 13 25.0 19 14.0 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** 23.0 28 14.0 8 12.5 28 ***** 1966 38.0 31 15.0 2 35.0 27 33.0 3 17.0 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 30.0 13 0.0 ** 24.0 20 38.0 1967 32.0 21 23.0 12 35.0 2 20.0 5 19.2 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 60.0 24 5.0 8 60.0 1968 40.0 16 4.5 2 20.0 29 54.0 2 8.5 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** 24.0 26 48.0 7 59.0 28 59.0 1969 32.0 23 12.6 12 31.2 21 52.0 13 27.0 7 0.0 ** 0.0 ** 4.2 28 2.4 30 0.0 ** 23.4 3 18.8 31 52.0 1970 12.0 22 14.2 23 27.0 12 25.2 30 11.6 1 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 18.2 9 27.0 1971 3.4 31 30.0 14 16.0 15 34.4 13 3.0 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 18.0 8 13.0 9 34.4 1972 6.0 17 30.0 19 46.0 21 20.0 18 36.0 13 0.0 ** 0.0 ** 7.0 5 0.0 ** 1.4 29 15.0 30 26.0 1 46.0 1973 22.0 15 40.0 22 25.0 4 34.0 8 0.0 ** 0.0 ** 5.5 23 0.0 ** 0.0 ** 0.0 ** 18.0 24 5.0 18 40.0 1974 20.0 22 34.0 27 33.0 1 10.0 12 6.0 11 0.0 ** 2.0 17 0.0 ** 0.0 ** 5.0 12 2.0 22 20.0 5 34.0 1975 32.0 20 48.0 25 5.5 2 5.2 23 16.5 11 0.0 ** 12.0 23 0.0 ** 0.0 ** 0.0 ** 21.6 11 30.0 2 48.0 1976 ***** ** 36.0 11 22.0 11 45.0 5 47.0 14 0.0 ** 21.0 24 0.0 ** 0.0 ** 25.0 31 17.0 3 17.0 28 ***** 1977 10.0 11 18.0 7 31.0 27 26.0 7 8.0 24 0.0 ** 2.0 29 0.0 ** 0.0 ** 28.0 27 60.0 12 47.0 15 60.0 1978 40.0 10 20.0 23 47.5 13 9.2 25 2.5 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 29.0 10 44.0 3 47.5 1979 55.0 23 27.0 9 76.0 27 12.0 28 43.0 8 34.4 3 0.0 ** 2.0 28 0.0 ** 8.0 25 14.0 30 18.0 15 76.0 1980 35.5 23 59.0 11 23.7 14 25.0 29 12.0 1 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.5 25 9.0 24 14.0 18 59.0 1981 20.0 21 33.5 11 28.0 28 44.0 17 8.5 1 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 51.5 22 4.5 31 51.5 1982 22.0 17 21.0 14 23.0 15 8.0 8 4.0 24 0.0 ** 0.0 ** 0.0 ** 0.0 ** 14.0 14 41.4 10 18.0 30 41.4 1983 31.0 1 23.0 21 18.0 3 25.0 1 23.2 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.2 13 12.5 27 31.0 1984 28.0 17 16.0 24 36.0 12 18.6 17 19.8 9 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.2 8 13.0 18 13.0 27 36.0 1985 21.2 16 24.5 1 24.0 24 10.0 3 2.5 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 12.2 13 38.2 19 38.2 1986 4.0 27 12.0 15 32.0 8 38.0 3 58.0 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 52.0 30 41.0 20 58.0 1987 16.0 7 20.0 10 32.0 19 35.0 5 0.0 ** 0.0 ** 3.0 28 5.0 1 0.0 ** 12.0 26 8.0 3 24.0 29 35.0 1988 16.0 16 26.0 3 34.0 4 27.0 26 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 29.0 14 33.0 17 34.0 1989 17.0 3 31.0 21 19.0 24 17.0 25 12.0 8 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** ** 94.0 4 ***** 1990 18.0 5 26.0 11 16.0 15 19.0 3 2.0 12 0.0 ** ***** ** ***** ** ***** ** ***** ** 8.0 28 18.0 25 ***** 1991 32.0 19 22.0 3 40.0 23 6.0 4 0.0 ** 6.0 25 0.0 ** 0.0 ** 0.0 ** 17.0 4 0.0 ** 54.0 14 54.0 1992 13.0 1 27.0 24 23.0 31 24.0 15 16.0 11 0.0 ** 0.0 ** 3.0 30 0.0 ** 0.0 ** 14.0 26 71.0 30 71.0 1993 57.0 8 50.0 2 42.0 8 0.0 ** 30.0 6 0.0 ** 0.0 ** 7.0 27 0.0 ** 0.0 ** 21.0 11 4.0 8 57.0 1994 17.0 5 53.0 1 31.0 12 16.2 2 13.0 4 0.0 ** 5.0 15 0.0 ** 0.5 15 5.0 8 48.5 30 27.0 3 53.0 1995 19.0 13 35.0 5 12.0 16 22.0 23 6.0 30 27.0 1 0.0 ** 0.0 ** 0.0 ** 4.0 22 0.0 ** 32.0 12 35.0 1996 35.0 6 33.0 2 33.0 2 30.0 15 8.0 12 0.0 ** 0.0 ** 4.0 30 0.0 ** 3.0 10 4.0 28 13.0 23 35.0 1997 26.0 17 5.0 22 44.0 29 39.0 5 18.0 5 3.0 23 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 25.0 14 44.0 1998 50.0 6 36.0 9 132.0 18 6.0 5 6.0 13 0.0 ** 4.0 26 0.0 ** 3.0 12 15.0 11 0.0 ** 9.0 4 132.0 1999 22.0 17 34.0 21 38.0 13 12.0 6 0.0 ** 0.0 ** 12.0 13 0.0 ** 0.0 ** 0.0 ** 15.0 1 17.0 12 38.0 2000 38.0 28 28.0 25 23.0 25 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.0 4 17.0 17 26.0 11 38.0 2001 13.0 24 29.0 21 41.0 10 0.0 ** 11.0 11 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 28 8.0 18 57.0 5 57.0 2002 40.0 8 34.0 14 41.0 21 36.0 2 5.0 12 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 20.0 7 56.0 10 56.0 2003 15.5 28 36.0 14 43.0 26 28.0 21 2.0 8 0.0 ** 0.0 ** 0.2 7 0.0 ** 0.0 ** 5.0 29 42.0 28 43.0 HIG. 57.0 8 59.0 11 132.0 18 54.0 2 58.0 4 34.4 3 21.0 24 7.0 5 3.0 12 30.0 13 60.0 24 94.0 4 132.0 YEAR 1993 1980 1998 1968 1986 1979 1976 1972 1998 1966 1967 1989 1998 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1964 4.9 49.0 124.4 55.0 10.0 0.0 0.0 0.0 0.0 0.0 59.0 90.5 392.8 45.4 16.5 0.0 38.1 1965 91.9 ****** 113.0 74.0 20.0 0.0 0.0 0.0 0.0 60.5 40.0 15.0 ****** 49.4 22.7 0.0 27.9 1966 108.6 75.0 68.9 33.0 17.0 0.0 0.0 0.0 0.0 114.0 0.0 53.0 469.5 53.8 10.6 0.0 35.6 1967 97.8 113.0 78.0 109.0 39.2 0.0 0.0 0.0 0.0 0.0 170.0 9.0 616.0 46.9 24.1 0.0 29.1 1968 51.8 11.3 79.0 258.0 10.7 0.0 0.0 0.0 0.0 28.0 122.2 120.8 681.8 20.8 39.4 0.0 39.7 1969 168.0 62.4 123.8 148.5 44.4 0.0 0.0 10.0 2.4 0.0 61.2 37.5 658.2 53.8 29.3 1.9 15.0 1970 40.0 58.6 90.9 67.6 19.0 0.0 0.0 0.0 0.0 0.0 0.0 51.2 327.3 57.9 26.5 0.0 15.6 1971 18.6 82.6 55.2 236.8 4.0 0.0 0.0 0.0 0.0 0.0 54.0 41.5 492.7 31.7 48.9 0.0 19.4 1972 29.8 60.0 188.0 110.0 79.0 0.0 0.0 7.0 0.0 1.4 35.0 57.4 567.6 48.9 33.3 1.2 16.5 1973 73.0 82.0 111.0 116.0 0.0 0.0 10.0 0.0 0.0 0.0 22.0 22.0 436.0 61.0 26.6 2.3 10.1 1974 154.0 101.5 84.0 15.0 10.0 0.0 4.0 0.0 0.0 11.0 2.0 93.0 474.5 71.5 5.3 0.8 22.3 1975 92.0 117.0 24.1 20.9 31.5 0.0 19.0 0.0 0.0 0.0 71.3 202.2 578.0 40.3 9.1 3.3 47.3 1976 ****** 231.5 132.2 137.0 160.0 0.0 33.0 0.0 0.0 73.0 43.0 72.2 ****** 41.2 33.7 3.7 21.3 1977 50.0 18.0 63.0 107.2 18.0 0.0 2.0 0.0 0.0 77.5 148.0 188.4 672.1 19.5 18.6 0.3 61.6 1978 155.0 83.2 109.1 17.6 2.5 0.0 0.0 0.0 0.0 0.0 71.5 147.7 586.6 59.2 3.4 0.0 37.4 1979 127.2 73.5 163.5 14.0 146.2 40.4 0.0 2.0 0.0 13.0 18.6 73.4 671.8 54.2 29.9 0.3 15.6 1980 149.4 246.4 147.9 85.2 24.0 0.0 0.0 0.0 0.0 5.0 25.8 55.7 739.4 73.5 14.8 0.0 11.7 1981 91.7 139.0 96.0 130.8 14.5 0.0 0.0 0.0 0.0 0.0 91.2 12.5 575.7 56.7 25.2 0.0 18.0 1982 81.2 84.2 131.5 10.0 9.0 0.0 0.0 0.0 0.0 65.5 162.0 38.0 581.4 51.1 3.3 0.0 45.7 1983 159.5 63.4 115.5 57.7 35.2 0.0 0.0 0.0 0.0 0.0 3.7 35.8 470.8 71.9 19.7 0.0 8.4 1984 86.3 51.0 216.8 36.0 59.2 0.0 0.0 0.0 0.0 7.9 48.0 59.5 564.7 62.7 16.9 0.0 20.4 1985 77.5 57.5 63.0 16.0 4.0 0.0 0.0 0.0 0.0 0.0 14.2 135.2 367.4 53.9 5.4 0.0 40.7 1986 12.0 53.0 151.0 148.4 103.2 0.0 0.0 0.0 0.0 0.0 197.9 121.4 786.9 27.4 32.0 0.0 40.6 1987 47.0 47.0 184.0 76.0 0.0 0.0 8.0 10.4 0.0 45.0 14.0 88.6 520.0 53.5 14.6 3.5 28.4 1988 60.8 99.0 134.0 67.0 0.0 0.0 0.0 0.0 0.0 0.0 70.0 122.0 552.8 53.1 12.1 0.0 34.7 1989 70.0 108.0 87.0 27.0 14.0 0.0 0.0 0.0 0.0 0.0 ****** 268.0 ****** 46.2 7.1 0.0 46.7 1990 87.0 90.0 46.0 22.0 2.0 0.0 ****** ****** ****** ****** 8.0 52.0 ****** 72.6 7.8 ***** 19.5 1991 114.0 95.0 126.0 12.0 0.0 6.0 0.0 0.0 0.0 57.0 0.0 255.0 665.0 50.4 2.7 0.0 46.9 1992 76.0 92.0 82.0 83.0 63.0 0.0 0.0 6.0 0.0 0.0 22.0 211.0 635.0 39.4 23.0 0.9 36.7 1993 160.0 152.0 236.0 0.0 53.0 0.0 0.0 7.0 0.0 0.0 97.0 7.0 712.0 77.0 7.4 1.0 14.6 1994 46.0 69.0 84.0 35.2 39.9 0.0 9.0 0.0 0.9 14.0 296.0 109.0 703.0 28.3 10.7 1.4 59.6 1995 49.0 131.0 46.0 64.0 25.0 33.0 0.0 0.0 0.0 4.0 0.0 67.0 419.0 53.9 29.1 0.0 16.9 1996 143.0 136.0 212.0 96.5 16.0 0.0 0.0 4.0 0.0 6.0 10.0 34.0 657.5 74.7 17.1 0.6 7.6 1997 56.0 12.0 174.0 102.0 21.5 3.0 0.0 0.0 0.0 0.0 0.0 112.0 480.5 50.4 26.3 0.0 23.3 1998 138.0 168.0 277.0 19.0 6.0 0.0 7.0 0.0 3.0 30.0 0.0 26.0 674.0 86.5 3.7 1.5 8.3 1999 131.5 145.0 139.0 31.0 0.0 0.0 16.0 0.0 0.0 0.0 41.0 48.0 551.5 75.3 5.6 2.9 16.1 2000 140.0 89.0 36.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 37.0 122.0 426.0 62.2 0.0 0.0 37.8 2001 47.0 70.0 95.0 0.0 25.0 0.0 0.0 0.0 0.0 4.0 39.0 350.5 630.5 33.6 4.0 0.0 62.4 2002 148.0 65.0 84.0 156.0 8.0 0.0 0.0 0.0 0.0 0.0 75.0 181.0 717.0 41.4 22.9 0.0 35.7 2003 59.0 150.0 131.0 89.0 2.0 0.0 0.0 0.2 0.0 0.0 10.0 89.5 530.7 64.1 17.1 0.0 18.7 MEAN 89.6 93.1 117.6 72.1 28.4 2.1 2.8 1.2 0.2 15.9 55.9 96.9 575.8 52.2 17.8 0.7 29.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 2 2 8 4 2 0 0 0 0 0 3 6 27 1965 9 *** 4 6 2 0 0 0 0 5 3 2 *** 1966 6 9 5 1 1 0 0 0 0 4 0 5 31 1967 6 8 3 9 3 0 0 0 0 0 6 2 37 1968 4 8 6 12 2 0 0 0 0 2 7 8 49 1969 12 7 8 7 2 0 0 4 1 0 4 3 48 1970 9 6 8 4 2 0 0 0 0 0 0 4 33 1971 7 5 10 16 2 0 0 0 0 0 5 8 53 1972 8 5 11 9 4 0 0 1 0 1 7 7 53 1973 8 4 7 7 0 0 3 0 0 0 2 7 38 1974 17 9 8 2 3 0 2 0 0 3 1 11 56 1975 8 11 8 8 3 0 3 0 0 0 8 13 62 1976 *** 12 13 6 5 0 2 0 0 5 3 9 *** 1977 8 1 4 13 4 0 1 0 0 5 6 9 51 1978 6 8 7 4 1 0 0 0 0 0 8 5 39 1979 5 5 6 2 7 2 0 1 0 2 2 10 42 1980 9 10 14 6 3 0 0 0 0 2 4 6 54 1981 9 9 7 12 3 0 0 0 0 0 5 3 48 1982 7 9 11 2 3 0 0 0 0 13 9 6 60 1983 11 9 11 8 2 0 0 0 0 0 2 5 48 1984 9 4 13 5 5 0 0 0 0 3 7 8 54 1985 7 8 7 4 2 0 0 0 0 0 2 9 39 1986 4 7 10 15 4 0 0 0 0 0 13 9 62 1987 4 5 13 5 0 0 3 3 0 6 3 8 50 1988 7 7 8 5 0 0 0 0 0 0 6 5 38 1989 7 10 8 5 2 0 0 0 0 0 *** 8 *** 1990 9 8 5 2 1 0 *** *** *** *** 1 5 *** 1991 9 8 8 3 0 1 0 0 0 7 0 15 51 1992 10 10 8 7 10 0 0 2 0 0 3 10 60 1993 11 8 12 0 5 0 0 1 0 0 9 2 48 1994 6 4 6 4 6 0 2 0 2 4 12 10 56 1995 5 6 6 8 6 3 0 0 0 1 0 6 41 1996 10 10 14 8 4 0 0 1 0 2 4 5 58 1997 7 3 14 9 2 1 0 0 0 0 0 7 43 1998 10 10 10 4 1 0 2 0 1 3 0 4 45 1999 13 11 9 6 0 0 2 0 0 0 5 4 50 2000 10 7 4 0 0 0 0 0 0 1 7 13 42 2001 7 7 5 0 3 0 0 0 0 1 6 13 42 2002 9 6 6 9 2 0 0 0 0 0 9 10 51 2003 10 11 8 7 1 0 0 1 0 0 3 9 50 MEAN 8 7 8 6 3 0 1 0 0 2 4 7 46 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 2 8 4 2 0 0 0 0 0 3 6 27 1965 9 *** 4 6 2 0 0 0 0 5 3 2 *** 1966 6 9 4 1 1 0 0 0 0 4 0 5 30 1967 6 8 3 9 3 0 0 0 0 0 6 2 37 1968 4 4 6 12 2 0 0 0 0 2 7 8 45 1969 12 7 8 7 2 0 0 4 1 0 4 3 48 1970 9 6 8 4 2 0 0 0 0 0 0 4 33 1971 7 5 10 16 2 0 0 0 0 0 5 8 53 1972 8 5 11 9 4 0 0 1 0 1 7 7 53 1973 8 4 7 7 0 0 3 0 0 0 2 7 38 1974 17 9 8 2 3 0 2 0 0 3 1 11 56 1975 8 11 7 8 3 0 3 0 0 0 8 13 61 1976 *** 12 13 6 5 0 2 0 0 5 3 9 *** 1977 8 1 4 13 4 0 1 0 0 5 6 9 51 1978 6 8 7 4 1 0 0 0 0 0 8 5 39 1979 5 5 6 2 7 2 0 1 0 2 2 10 42 1980 9 10 14 6 3 0 0 0 0 2 4 6 54 1981 9 9 7 12 3 0 0 0 0 0 5 3 48 1982 7 9 11 2 3 0 0 0 0 13 9 6 60 1983 11 9 11 8 2 0 0 0 0 0 2 5 48 1984 9 4 12 5 5 0 0 0 0 3 7 8 53 1985 7 8 7 4 2 0 0 0 0 0 2 9 39 1986 4 7 10 15 4 0 0 0 0 0 13 9 62 1987 4 5 13 5 0 0 3 3 0 6 3 8 50 1988 7 7 8 5 0 0 0 0 0 0 6 5 38 1989 7 10 8 5 2 0 0 0 0 0 *** 8 *** 1990 9 8 5 2 1 0 *** *** *** *** 1 5 *** 1991 9 8 8 3 0 1 0 0 0 7 0 15 51 1992 10 10 8 7 10 0 0 2 0 0 3 10 60 1993 11 8 12 0 5 0 0 1 0 0 9 2 48 1994 6 4 6 4 6 0 2 0 0 4 12 10 54 1995 5 6 6 8 6 3 0 0 0 1 0 6 41 1996 10 10 14 8 4 0 0 1 0 2 4 5 58 1997 7 3 14 9 2 1 0 0 0 0 0 7 43 1998 10 10 10 4 1 0 2 0 1 3 0 4 45 1999 13 11 9 6 0 0 2 0 0 0 5 4 50 2000 10 7 4 0 0 0 0 0 0 1 7 13 42 2001 7 7 5 0 3 0 0 0 0 1 6 13 42 2002 9 6 6 9 2 0 0 0 0 0 9 10 51 2003 10 11 8 7 1 0 0 0 0 0 3 9 49 MEAN 8 7 8 6 3 0 1 0 0 2 4 7 46 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 2 8 4 0 0 0 0 0 0 2 4 20 1965 5 *** 3 5 1 0 0 0 0 3 3 1 *** 1966 5 4 3 1 1 0 0 0 0 4 0 2 20 1967 4 6 2 6 2 0 0 0 0 0 4 0 24 1968 1 0 6 9 0 0 0 0 0 1 4 2 23 1969 6 4 5 7 2 0 0 0 0 0 3 2 29 1970 1 4 4 4 1 0 0 0 0 0 0 2 16 1971 0 4 2 11 0 0 0 0 0 0 3 1 21 1972 0 3 7 6 4 0 0 0 0 0 1 1 22 1973 3 4 5 6 0 0 0 0 0 0 1 0 19 1974 8 3 3 1 0 0 0 0 0 0 0 4 19 1975 4 4 0 0 2 0 1 0 0 0 4 9 24 1976 *** 9 7 5 5 0 2 0 0 4 3 3 *** 1977 1 1 3 5 0 0 0 0 0 3 4 7 24 1978 5 4 3 0 0 0 0 0 0 0 3 4 19 1979 5 4 6 1 5 1 0 0 0 0 1 3 26 1980 5 10 8 3 1 0 0 0 0 0 0 3 30 1981 5 5 4 5 0 0 0 0 0 0 2 0 21 1982 4 3 6 0 0 0 0 0 0 2 6 1 22 1983 8 2 6 2 2 0 0 0 0 0 0 1 21 1984 2 3 8 1 3 0 0 0 0 0 2 3 22 1985 4 1 3 1 0 0 0 0 0 0 1 5 15 1986 0 4 7 6 3 0 0 0 0 0 7 6 33 1987 3 2 9 2 0 0 0 0 0 1 0 3 20 1988 3 4 7 3 0 0 0 0 0 0 2 5 24 1989 3 3 4 1 1 0 0 0 0 0 *** 5 *** 1990 3 5 2 1 0 0 *** *** *** *** 0 2 *** 1991 4 5 3 0 0 0 0 0 0 2 0 7 21 1992 3 2 4 3 2 0 0 0 0 0 1 8 23 1993 5 5 11 0 2 0 0 0 0 0 4 0 27 1994 1 1 3 2 2 0 0 0 0 0 8 4 21 1995 3 4 2 2 0 1 0 0 0 0 0 2 14 1996 6 6 7 3 0 0 0 0 0 0 0 1 23 1997 2 0 6 3 1 0 0 0 0 0 0 6 18 1998 4 4 5 0 0 0 0 0 0 1 0 0 14 1999 6 6 4 1 0 0 1 0 0 0 2 3 23 2000 5 3 1 0 0 0 0 0 0 0 2 5 16 2001 2 2 3 0 2 0 0 0 0 0 0 9 18 2002 6 2 2 5 0 0 0 0 0 0 4 6 25 2003 3 5 6 4 0 0 0 0 0 0 0 2 20 MEAN 4 4 5 3 1 0 0 0 0 1 2 3 23 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 65 89 79 70 53 45 45 40 44 44 64 79 60 1965 79 *** 67 63 53 44 44 50 45 63 72 69 *** 1966 76 76 75 69 55 43 59 63 61 72 64 76 66 1967 63 74 72 68 64 45 61 50 58 65 60 69 62 1968 63 68 70 72 74 61 48 51 50 53 73 69 63 1969 77 73 68 65 54 46 44 49 56 54 76 66 61 1970 76 67 79 61 54 46 47 51 52 52 44 68 58 1971 56 69 70 70 56 50 51 52 51 61 73 69 61 1972 69 66 76 79 69 47 47 52 54 57 79 85 65 1973 76 84 69 59 50 44 50 42 45 47 62 68 58 1974 66 64 67 60 61 49 52 46 51 66 60 57 58 1975 67 59 67 70 58 52 55 52 52 59 73 69 61 1976 *** 78 73 73 62 54 65 56 61 57 64 65 *** 1977 48 68 72 67 63 60 47 52 52 62 75 80 62 1978 79 75 75 67 57 54 48 46 55 63 82 84 65 1979 80 81 79 65 65 56 52 50 56 66 73 82 67 1980 82 69 78 64 56 50 48 57 57 61 75 82 65 1981 82 82 76 65 59 48 47 46 57 70 73 72 65 1982 75 79 75 58 57 45 42 45 50 75 83 85 64 1983 88 83 83 74 59 47 46 47 55 63 71 78 66 1984 82 79 69 62 64 52 50 47 56 65 77 62 64 1985 62 73 70 67 54 49 48 52 54 55 75 81 62 1986 83 80 76 76 66 58 55 59 60 64 78 80 70 1987 76 77 77 64 59 48 48 47 56 66 71 74 64 1988 78 77 68 61 53 48 49 52 53 60 75 80 63 1989 78 76 72 61 59 49 47 48 57 62 *** 76 *** 1990 80 78 68 65 55 51 *** *** *** *** 71 75 *** 1991 83 83 78 72 60 50 48 49 52 78 80 85 68 1992 79 82 80 71 69 60 45 51 52 59 75 83 67 1993 77 78 80 66 62 51 52 56 50 55 66 67 63 1994 70 68 80 73 69 53 56 46 58 72 73 80 67 1995 73 78 67 78 68 58 43 41 51 63 64 82 64 1996 80 87 83 72 67 49 47 44 51 59 69 82 66 1997 83 77 85 77 63 58 55 43 48 62 81 83 68 1998 85 85 79 67 58 51 51 47 52 61 66 67 64 1999 85 83 80 67 53 44 44 40 45 55 72 75 62 2000 84 76 79 56 48 45 50 49 56 77 60 66 62 2001 77 80 80 60 59 44 42 43 47 57 74 92 63 2002 83 85 75 74 54 45 45 41 46 50 83 87 64 2003 82 82 74 70 60 49 44 41 49 58 69 80 63 MEAN 76 77 75 67 59 50 49 49 53 61 71 76 64 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 86 81 48 36 21 16 18 14 16 15 35 79 39 1965 87 *** 38 36 18 22 20 28 17 32 38 49 *** 1966 61 65 55 40 25 16 34 43 28 39 27 51 40 1967 70 77 57 46 32 21 41 24 24 21 45 63 43 1968 68 75 49 58 43 29 27 24 26 28 44 61 44 1969 74 72 54 38 29 21 18 20 22 22 42 43 38 1970 59 47 48 28 27 19 22 20 20 20 25 58 33 1971 70 75 49 47 32 24 21 21 20 22 50 58 41 1972 77 74 62 46 41 26 19 22 18 20 37 69 43 1973 69 59 39 34 26 15 22 16 18 19 23 45 32 1974 72 65 53 35 28 20 23 18 19 29 29 58 37 1975 67 64 53 44 36 25 18 17 19 28 46 60 40 1976 *** 76 61 49 40 28 27 18 20 27 40 43 *** 1977 60 51 44 42 36 26 29 18 16 33 47 57 38 1978 49 52 47 33 28 22 20 21 23 27 47 51 35 1979 55 46 47 31 37 27 21 23 27 33 39 61 37 1980 61 72 56 35 30 21 18 20 23 32 40 55 39 1981 59 54 43 41 31 22 22 19 21 30 39 40 35 1982 51 56 49 33 30 21 19 20 21 43 50 64 38 1983 67 65 57 42 35 22 20 18 18 26 30 52 38 1984 59 51 56 30 34 25 19 16 18 27 47 47 36 1985 62 51 45 38 26 18 17 22 20 20 42 57 35 1986 51 58 53 52 38 25 23 26 24 28 57 63 42 1987 54 52 57 34 26 24 25 23 24 41 39 52 38 1988 55 61 47 39 27 22 21 20 19 24 41 52 36 1989 57 62 46 36 31 19 20 20 22 27 *** 49 *** 1990 62 59 44 36 27 24 *** *** *** *** 33 45 *** 1991 69 59 50 36 27 22 18 16 18 32 32 69 37 1992 72 71 57 40 39 24 20 21 20 24 38 64 41 1993 65 69 59 40 37 24 26 28 22 34 42 44 41 1994 52 50 44 39 34 26 32 22 31 37 55 51 39 1995 51 62 43 46 34 23 17 21 20 26 28 64 36 1996 65 65 54 35 34 21 23 22 20 24 36 43 37 1997 56 50 56 40 31 28 37 19 23 26 49 56 39 1998 67 62 51 37 28 22 25 20 21 27 28 31 35 1999 68 54 49 32 24 17 19 16 14 20 37 35 32 2000 62 56 32 23 19 18 30 28 32 53 61 72 41 2001 65 57 46 29 30 19 17 19 20 31 40 67 37 2002 60 52 36 44 24 20 20 18 20 21 44 65 35 2003 51 58 43 40 28 21 23 20 21 27 34 54 35 MEAN 63 61 49 39 31 22 23 21 21 28 40 55 38 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 82 85 60 46 31 22 23 20 21 24 45 80 45 1965 86 *** 45 45 26 24 21 29 17 38 53 61 *** 1966 70 70 60 47 28 20 41 51 31 43 36 57 46 1967 70 78 69 56 38 21 39 25 32 29 47 60 47 1968 66 75 51 68 56 35 25 27 29 36 59 70 50 1969 73 69 59 52 37 24 19 27 30 27 49 46 43 1970 60 54 57 33 28 22 23 23 23 26 29 62 37 1971 71 72 55 51 36 25 22 23 23 30 65 57 44 1972 78 74 68 57 47 25 19 24 22 26 51 82 48 1973 78 71 51 39 30 18 23 14 18 28 44 49 39 1974 68 69 63 40 33 19 22 19 19 35 40 65 41 1975 68 61 53 46 38 25 19 17 20 28 57 70 42 1976 *** 72 65 52 45 27 29 19 20 25 45 56 *** 1977 59 58 49 49 41 27 31 19 23 40 54 63 43 1978 59 58 52 39 31 20 18 24 23 33 62 61 40 1979 65 55 57 37 40 31 23 23 28 39 44 67 42 1980 65 71 60 43 35 23 22 24 28 36 48 64 43 1981 63 57 48 45 34 28 22 20 27 38 44 45 39 1982 58 57 55 37 33 23 22 22 24 44 61 76 43 1983 75 71 62 49 39 26 22 21 22 33 35 61 43 1984 69 63 63 38 39 28 22 18 22 36 60 58 43 1985 68 60 54 43 30 21 19 24 24 29 50 68 41 1986 59 63 58 62 42 28 25 28 27 33 62 70 46 1987 62 57 60 41 31 25 29 27 26 44 45 56 42 1988 59 67 50 44 31 24 24 23 24 29 45 55 40 1989 68 62 51 40 36 24 22 22 27 33 *** 66 *** 1990 76 72 60 45 33 25 *** *** *** *** 49 60 *** 1991 79 73 64 45 34 30 24 24 25 53 51 83 49 1992 76 77 73 51 47 35 24 25 24 37 55 78 50 1993 74 76 68 47 45 30 31 34 28 41 52 56 49 1994 63 60 59 48 45 36 40 26 34 48 65 73 50 1995 66 69 54 60 44 35 23 24 28 33 42 72 46 1996 75 76 70 47 44 27 26 24 26 38 51 59 47 1997 68 62 64 54 41 37 42 21 27 36 64 71 49 1998 80 76 62 42 35 29 29 24 27 38 39 50 44 1999 74 70 63 46 29 25 24 22 23 32 57 52 43 2000 68 67 43 33 24 24 34 33 38 61 76 84 49 2001 70 71 53 35 36 22 24 23 25 39 51 80 44 2002 78 65 49 54 33 27 23 22 23 29 64 78 45 2003 64 67 62 49 36 28 29 21 24 31 50 66 44 MEAN 69 67 58 46 37 26 26 24 25 35 51 65 44 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 18 0 1 0 0 0 0 0 0 0 7 28 54 1965 24 *** 5 2 0 0 0 0 0 0 5 26 *** 1966 14 15 12 3 0 0 0 0 0 0 11 22 77 1967 26 17 12 4 0 0 0 0 0 0 13 26 98 1968 24 24 7 0 0 0 0 0 0 0 4 15 74 1969 25 15 2 2 0 0 0 0 0 0 18 24 86 1970 29 21 8 0 0 0 0 0 0 7 19 26 110 1971 31 27 15 4 0 0 0 0 0 0 3 28 108 1972 30 28 18 0 0 0 0 0 0 0 8 25 109 1973 30 15 8 0 0 0 0 0 0 0 14 25 92 1974 31 25 8 0 0 0 0 0 0 1 7 31 103 1975 27 24 12 0 0 0 0 0 0 0 9 28 100 1976 *** 27 26 0 0 0 0 0 0 0 8 29 *** 1977 31 24 3 0 0 0 0 0 0 0 6 9 73 1978 21 12 10 0 0 0 0 0 0 1 12 13 69 1979 28 17 16 1 0 0 0 0 0 0 10 *** *** 1980 31 29 13 0 0 0 0 0 0 0 10 29 112 1981 24 14 5 1 0 0 0 0 0 0 9 22 75 1982 30 28 12 0 0 0 0 0 0 0 16 28 114 1983 22 27 23 0 0 0 0 0 0 0 11 26 109 1984 31 27 *** 0 0 0 0 0 0 6 0 24 *** 1985 20 26 12 0 0 0 0 0 0 0 1 21 80 1986 27 25 4 0 0 0 0 0 0 0 10 30 96 1987 31 28 11 2 0 0 0 0 0 0 9 16 97 1988 26 28 12 2 0 0 0 0 0 0 13 19 100 1989 31 28 10 0 0 0 0 0 0 0 *** 19 *** 1990 29 23 11 0 0 0 *** *** *** *** *** 26 *** 1991 23 21 8 0 0 0 0 0 0 0 14 14 80 1992 29 24 16 0 0 0 0 0 0 0 3 13 85 1993 22 13 7 0 0 0 0 0 0 0 1 10 53 1994 17 16 6 0 0 0 0 0 0 0 2 19 60 1995 20 14 9 0 0 0 0 0 0 0 6 23 72 1996 24 8 3 0 0 0 0 0 0 0 2 12 49 1997 20 18 6 0 0 0 0 0 0 0 2 22 68 1998 23 16 6 0 0 0 0 0 0 0 0 4 49 1999 19 9 9 1 0 0 0 0 0 0 2 17 57 2000 22 22 8 0 0 0 0 0 0 0 5 12 69 2001 23 19 4 0 0 0 0 0 0 0 6 3 55 2002 20 14 7 0 0 0 0 0 0 0 7 13 61 2003 21 10 7 0 0 0 0 0 0 0 8 13 59 MEAN 25 20 10 1 0 0 0 0 0 0 8 20 84 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 0 0 0 0 0 0 0 0 0 1965 0 *** 0 0 0 0 0 0 0 0 0 0 *** 1966 0 0 0 0 0 0 0 0 0 0 0 0 0 1967 0 0 0 0 0 0 2 0 0 0 0 0 2 1968 0 0 0 0 0 0 0 0 0 0 0 0 0 1969 0 0 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 0 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 *** 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 *** *** 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 *** 1985 0 0 0 0 0 0 0 0 0 0 0 0 0 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 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 *** 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 1 0 0 0 0 1 1995 0 0 0 0 0 0 1 0 0 0 0 0 1 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 1 0 0 0 0 0 1 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 0 0 2001 0 0 0 0 0 0 0 0 0 0 0 0 0 2002 0 0 0 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 20 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 20 0 0 0 0 0 0 0 0 0 0 9 29 1965 16 *** 0 0 0 0 0 0 0 0 0 1 *** 1966 0 0 0 0 0 0 0 0 0 0 0 0 0 1967 7 3 1 1 0 0 0 0 0 0 0 0 12 1968 9 5 0 0 0 0 0 0 0 0 0 0 14 1969 5 1 0 0 0 0 0 0 0 0 0 0 6 1970 5 0 0 0 0 0 0 0 0 0 0 6 11 1971 7 3 0 0 0 0 0 0 0 0 0 6 16 1972 6 *** *** *** *** *** *** *** 0 0 0 5 *** 1973 8 0 0 0 0 0 0 0 0 0 0 0 8 1974 12 9 0 0 0 0 0 0 0 0 0 6 27 1975 11 12 0 0 0 0 0 0 0 0 0 1 24 1976 *** 0 2 0 0 0 0 0 0 0 0 0 *** 1977 20 2 0 0 0 0 0 0 0 0 0 1 23 1978 4 1 0 0 0 0 0 0 0 0 0 0 5 1979 10 2 2 0 0 0 0 0 0 0 0 7 21 1980 13 6 0 0 0 0 0 0 0 0 0 0 19 1981 5 1 0 0 0 0 0 0 0 0 0 0 6 1982 7 3 0 0 0 0 0 0 0 0 0 6 16 1983 18 8 1 0 0 0 0 0 0 0 0 7 34 1984 4 2 0 0 0 0 0 0 0 0 0 1 7 1985 3 1 0 0 0 0 0 0 0 0 0 0 4 1986 1 3 0 0 0 0 0 0 0 0 0 7 11 1987 0 3 2 0 0 0 0 0 0 0 0 0 5 1988 2 6 0 0 0 0 0 0 0 0 0 2 10 1989 16 12 0 0 0 0 0 0 0 0 *** 0 *** 1990 2 0 0 0 0 0 *** *** *** *** 0 1 *** 1991 1 0 0 0 0 0 0 0 0 0 0 0 1 1992 14 3 0 0 0 0 0 0 0 0 0 0 17 1993 4 5 2 0 0 0 0 0 0 0 0 0 11 1994 1 0 0 0 0 0 0 0 0 0 0 2 3 1995 0 0 0 0 0 0 0 0 0 0 0 2 2 1996 13 1 0 0 0 0 0 0 0 0 0 0 14 1997 5 1 0 0 0 0 0 0 0 0 0 1 7 1998 6 5 0 0 0 0 0 0 0 0 0 0 11 1999 1 0 0 0 0 0 0 0 0 0 0 0 1 2000 2 3 0 0 0 0 0 0 0 0 0 0 5 2001 2 0 0 0 0 0 0 0 0 0 0 0 2 2002 1 0 0 0 0 0 0 0 0 0 0 1 2 2003 5 0 0 0 0 0 0 0 0 0 0 3 8 MEAN 7 3 0 0 0 0 0 0 0 0 0 2 12 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 0 0 25 31 31 16 0 0 0 103 1965 0 *** 0 0 0 5 22 10 2 0 0 0 *** 1966 0 0 0 0 0 11 25 30 4 1 0 0 71 1967 0 0 0 0 0 5 29 28 3 0 0 0 65 1968 0 0 0 0 0 1 12 20 2 0 0 0 35 1969 0 0 0 0 1 20 31 23 0 7 0 0 82 1970 0 0 0 0 16 30 31 31 18 4 0 0 130 1971 0 0 0 0 0 15 27 27 8 0 0 0 77 1972 0 *** *** *** *** *** *** *** 0 0 0 0 *** 1973 0 0 0 0 0 15 27 17 7 0 0 0 66 1974 0 0 0 0 0 9 13 15 0 0 0 0 37 1975 0 0 0 0 0 3 30 23 0 0 0 0 56 1976 *** 0 0 0 0 5 23 13 2 0 0 0 *** 1977 0 0 0 0 0 12 30 21 0 0 0 0 63 1978 0 0 0 0 0 11 18 26 4 0 0 0 59 1979 0 0 0 0 0 5 28 15 2 0 0 0 50 1980 0 0 0 0 0 15 19 26 8 0 0 0 68 1981 0 0 0 0 0 2 18 25 2 0 0 0 47 1982 0 0 0 0 0 20 24 28 0 0 0 0 72 1983 0 0 0 0 0 16 30 28 11 0 0 0 85 1984 0 0 0 0 0 10 23 30 10 0 0 0 73 1985 0 0 0 0 0 12 30 17 7 0 0 0 66 1986 0 0 0 0 0 8 15 12 0 0 0 0 35 1987 0 0 0 0 0 10 21 22 10 0 0 0 63 1988 0 0 0 0 0 7 24 27 15 0 0 0 73 1989 0 0 0 0 2 14 21 29 10 0 *** 0 *** 1990 0 0 0 0 0 26 *** *** *** *** 0 0 *** 1991 0 0 0 0 0 10 31 31 18 0 0 0 90 1992 0 0 0 0 0 5 27 14 0 0 0 0 46 1993 0 0 0 0 0 2 12 9 2 0 0 0 25 1994 0 0 0 0 0 0 29 26 4 0 0 0 59 1995 0 0 0 0 0 2 27 30 2 0 0 0 61 1996 0 0 0 0 0 0 1 10 7 0 0 0 18 1997 0 0 0 0 0 3 24 29 0 0 0 0 56 1998 0 0 0 0 0 5 17 17 2 0 0 0 41 1999 0 0 0 0 0 7 21 24 3 0 0 0 55 2000 0 0 0 0 0 9 17 24 4 0 0 0 54 2001 0 0 0 0 0 10 24 25 4 0 0 0 63 2002 0 0 0 0 0 0 13 23 10 0 0 0 46 2003 0 0 0 0 0 9 29 27 3 0 0 0 68 MEAN 0 0 0 0 0 10 23 23 5 0 0 0 61 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 0 0 0 0 0 0 0 0 1965 0 *** 0 0 0 0 0 0 0 0 0 0 *** 1966 0 0 0 0 0 0 0 0 0 0 0 0 0 1967 0 0 0 0 0 0 0 0 0 0 0 0 0 1968 0 0 0 0 0 0 0 0 0 0 0 0 0 1969 0 0 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 0 0 0 0 0 0 0 1972 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 *** 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 0 0 0 0 0 0 0 0 0 0 0 0 0 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 *** 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 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 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 0 0 2001 0 0 0 0 0 0 0 0 0 0 0 0 0 2002 0 0 0 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 23 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 0 0 1965 0 *** 0 0 0 0 0 0 0 0 0 0 *** 1966 0 0 0 0 0 0 0 0 0 0 0 0 0 1967 0 0 0 0 0 0 0 0 0 0 0 0 0 1968 0 0 0 0 0 0 0 0 0 0 0 0 0 1969 0 0 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 0 0 0 0 0 0 0 1972 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 *** 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 0 0 0 0 0 0 0 0 0 0 0 0 0 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 *** 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 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 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 0 0 2001 0 0 0 0 0 0 0 0 0 0 0 0 0 2002 0 0 0 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 EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 18 0 10 4 0 0 0 0 0 14 22 31 99 10 17 4 13 1965 30 *** 17 12 0 0 0 0 1 0 17 31 *** 9 26 4 22 1966 25 25 22 10 0 0 0 0 0 0 26 29 137 11 4 4 14 1967 31 26 26 9 1 0 0 0 0 8 25 31 157 10 23 5 1 1968 31 29 15 13 0 0 0 0 0 7 15 30 140 10 11 4 28 1969 30 28 10 9 0 0 0 0 1 0 25 31 134 9 13 4 24 1970 31 27 28 2 0 0 0 0 0 14 28 30 160 10 10 4 25 1971 31 28 25 20 0 0 0 0 0 19 23 31 177 10 4 4 27 1972 31 29 27 5 0 0 0 0 0 4 18 30 144 10 24 4 26 1973 31 26 23 7 0 0 0 0 0 11 25 31 154 10 17 4 18 1974 31 27 11 6 0 0 0 0 0 13 25 31 144 10 18 4 14 1975 30 28 24 10 0 0 0 0 0 18 26 31 167 10 7 4 25 1976 *** 28 31 9 0 0 0 0 0 5 18 31 *** 10 19 4 28 1977 31 28 12 4 0 0 0 0 0 1 20 22 118 10 29 4 19 1978 31 23 25 6 0 0 0 0 0 8 26 23 142 10 15 4 27 1979 31 28 19 6 0 0 0 0 0 4 24 *** *** 10 28 4 30 1980 31 29 17 2 0 0 0 0 0 9 21 31 140 10 16 4 20 1981 26 16 11 1 0 0 0 0 4 16 22 30 126 9 24 4 2 1982 31 28 30 2 0 0 0 0 0 5 26 31 153 10 21 4 2 1983 23 28 31 8 0 0 0 0 0 16 29 30 165 10 14 4 17 1984 31 29 *** 4 0 0 0 0 2 14 19 30 *** 9 29 4 6 1985 26 27 19 7 0 0 0 0 0 12 18 30 139 10 13 4 30 1986 31 28 30 1 0 0 0 0 0 6 19 31 146 10 26 4 2 1987 31 28 30 11 0 0 0 0 0 6 22 27 155 10 13 4 12 1988 30 29 22 9 0 0 0 0 0 9 26 30 155 10 9 4 10 1989 31 28 30 7 0 0 0 0 0 15 *** 29 *** 10 3 4 12 1990 31 28 23 16 0 0 *** *** *** *** *** 30 *** 12 1 4 23 1991 30 26 22 8 1 0 0 0 0 7 26 24 144 10 24 5 5 1992 31 28 28 9 0 0 0 0 0 4 15 27 142 10 27 4 20 1993 27 26 18 6 0 0 0 0 0 0 12 24 113 11 6 4 15 1994 25 26 20 4 0 0 0 0 0 1 13 29 118 10 13 4 7 1995 28 24 19 4 0 0 0 0 0 3 16 31 125 10 15 4 17 1996 30 22 17 4 0 0 0 0 0 5 22 28 128 10 18 4 7 1997 29 23 23 7 0 0 0 0 0 0 11 27 120 11 16 4 14 1998 31 24 20 3 0 0 0 0 0 2 24 14 118 10 28 4 25 1999 26 22 19 5 0 0 0 0 0 1 14 27 114 10 22 4 19 2000 30 28 21 3 0 0 0 0 0 0 19 21 122 11 8 4 26 2001 31 26 20 3 0 0 0 0 0 0 15 16 111 11 2 4 18 2002 27 25 16 7 0 0 0 0 0 3 17 26 121 10 25 4 24 2003 31 24 20 2 1 0 0 0 0 0 20 22 120 11 3 5 1 MEAN 29 26 21 7 0 0 0 0 0 7 21 28 139 9 13 5 5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 -10.5 4.5 7.5 10.3 17.3 22.8 27.0 25.8 20.8 12.1 6.3 -4.2 11.6 1965 -4.6 ****** 6.1 7.9 17.3 21.3 24.2 23.1 19.2 13.3 7.6 2.0 ****** 1966 2.6 1.5 4.4 9.6 17.0 21.9 23.9 23.9 18.4 13.1 7.0 1.3 12.0 1967 -4.0 -2.0 2.3 7.5 14.9 20.0 25.4 24.0 18.2 12.1 5.2 0.3 10.3 1968 -2.5 -2.6 5.8 8.3 14.1 20.1 22.9 23.0 18.4 13.5 7.1 2.0 10.8 1969 -2.5 -0.5 7.5 10.1 16.1 21.5 24.9 22.4 14.3 16.9 4.9 3.1 11.6 1970 -2.3 2.6 4.1 13.3 18.9 24.1 25.6 25.0 19.1 12.5 8.2 -2.7 12.4 1971 -6.8 -3.3 4.6 8.5 17.1 21.8 24.4 23.2 17.3 12.1 4.9 -0.7 10.3 1972 -5.9 -7.6 2.1 9.3 12.0 20.4 24.3 19.9 18.2 13.3 6.7 -1.7 9.3 1973 -4.5 2.5 5.6 10.4 16.1 22.0 24.5 22.8 19.3 13.1 6.2 1.1 11.6 1974 -6.7 -4.7 5.7 10.1 15.4 21.4 22.9 22.7 18.2 10.5 7.4 -4.5 9.9 1975 -4.4 -4.1 2.7 8.9 15.4 21.1 24.5 23.4 18.6 11.9 5.3 -1.0 10.2 1976 ****** -2.1 0.4 8.6 13.9 20.6 25.1 22.7 18.9 13.9 7.0 3.3 ****** 1977 -11.4 1.0 8.6 9.6 14.9 21.2 25.8 23.4 18.5 11.9 5.3 2.2 10.9 1978 -0.1 2.4 4.2 10.8 15.1 21.3 23.0 23.3 19.5 13.5 3.7 3.8 11.7 1979 -2.5 1.5 3.7 11.1 13.9 20.6 24.5 22.5 18.6 13.5 7.5 -2.4 11.1 1980 -4.2 -1.9 3.8 12.1 15.6 22.5 23.2 23.2 18.6 14.2 7.6 0.7 11.3 1981 -1.4 0.9 6.1 10.0 15.3 20.0 24.0 23.8 18.0 11.9 6.7 3.5 11.6 1982 -2.1 -2.4 2.3 13.1 17.3 23.0 23.9 25.1 19.2 11.8 3.9 -2.8 11.0 1983 -5.9 -3.5 0.7 9.0 17.0 22.3 24.8 24.0 20.5 11.9 6.7 0.3 10.6 1984 -2.7 0.0 5.8 10.8 12.4 20.9 23.4 24.2 19.0 10.6 6.1 -0.5 10.8 1985 -0.3 -0.1 5.1 9.9 15.2 22.1 24.5 21.6 18.5 12.0 7.1 -0.3 11.3 1986 -0.1 -0.9 3.4 9.8 14.6 20.1 23.4 21.3 16.9 13.5 4.4 -2.3 10.3 1987 -1.4 0.5 3.1 10.5 17.6 21.0 22.4 21.9 18.7 11.6 7.9 3.1 11.4 1988 0.2 -1.7 5.7 11.0 16.6 20.8 24.6 23.0 19.5 14.0 6.1 2.4 11.8 1989 -5.6 -4.4 3.8 10.8 15.7 21.6 24.0 23.2 18.8 12.9 ****** 1.5 ****** 1990 -2.7 -1.2 4.9 9.7 17.1 23.8 ****** ****** ****** ****** 6.3 2.3 ****** 1991 -0.8 0.7 5.5 11.1 14.8 20.8 24.9 24.3 19.9 12.2 6.8 0.2 11.7 1992 -6.3 -3.3 0.6 8.5 13.3 18.8 24.1 22.5 17.2 12.0 6.8 0.7 9.6 1993 -1.6 -0.8 3.0 8.9 13.8 19.4 22.4 21.6 19.3 12.4 7.0 4.9 10.9 1994 0.7 1.3 5.2 10.9 13.8 19.8 24.7 24.5 17.5 12.4 6.1 0.0 11.4 1995 1.1 0.4 4.9 9.3 14.0 18.4 23.7 23.1 19.2 12.5 7.5 -2.0 11.0 1996 -4.9 1.7 3.9 10.0 15.2 20.0 21.8 22.0 19.4 13.2 6.9 3.5 11.1 1997 -1.1 0.5 2.4 8.6 14.6 19.3 24.5 23.8 18.4 14.0 5.7 -0.1 10.9 1998 -3.5 -0.0 4.9 11.0 15.6 20.1 23.0 22.9 18.9 13.2 9.0 7.5 11.9 1999 -0.1 2.6 4.2 10.6 16.2 20.7 23.4 23.1 19.3 13.6 7.0 3.6 12.0 2000 -0.4 -1.8 4.9 13.3 16.7 20.7 23.2 22.8 19.3 12.6 5.3 1.5 11.5 2001 -0.9 1.6 6.6 12.3 16.4 21.5 24.5 23.6 19.8 15.0 6.9 3.3 12.5 2002 -1.2 2.1 6.8 9.7 15.7 20.1 22.7 23.0 20.7 14.4 6.1 0.7 11.7 2003 -0.0 1.7 4.8 11.1 14.6 19.8 24.5 23.2 19.3 14.2 6.9 2.2 11.9 MEAN -2.9 -0.5 4.4 10.1 15.5 21.0 24.1 23.1 18.8 12.9 6.4 0.9 11.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 -14.0 2.0 -0.2 -1.1 0.1 1.2 5.6 2.2 -0.3 -8.2 -6.3 -7.8 -2.2 1965 -7.1 ****** -5.0 -4.3 -1.4 1.4 3.3 5.7 -3.4 -0.2 -2.3 -6.1 ****** 1966 -3.1 -3.8 -2.8 -1.1 0.2 0.1 9.2 12.5 2.5 1.3 -6.6 -7.1 0.1 1967 -9.9 -5.8 -4.0 -1.5 1.1 -0.3 12.0 5.2 0.6 -4.5 -5.7 -6.1 -1.6 1968 -8.7 -7.1 -3.2 1.6 5.2 5.5 4.2 5.1 1.3 -2.0 -1.2 -4.1 -0.3 1969 -6.7 -5.3 -0.6 -1.1 1.0 2.0 2.7 2.2 -2.5 -0.7 -4.5 -7.4 -1.7 1970 -8.9 -6.4 -3.7 -1.5 1.8 3.6 5.7 5.3 0.0 -6.8 -9.0 -9.8 -2.5 1971 -12.6 -8.0 -3.9 -0.9 3.0 3.5 4.4 3.7 -1.6 -4.0 -2.6 -7.8 -2.2 1972 -10.0 -12.2 -3.5 1.1 1.5 2.2 2.9 1.2 -1.2 -4.1 -2.9 -5.2 -2.5 1973 -8.7 -2.7 -4.7 -2.7 -0.4 -1.0 4.3 -2.0 -2.3 -5.6 -8.1 -8.6 -3.5 1974 -11.8 -10.5 -1.7 -2.5 0.4 1.0 3.6 1.4 -1.7 -3.3 -5.9 -11.8 -3.6 1975 -10.2 -11.0 -5.5 -1.6 2.1 3.3 3.1 1.2 -1.5 -3.6 -3.3 -7.0 -2.8 1976 ****** -6.0 -5.5 0.1 2.4 3.8 8.6 2.0 -0.2 -3.1 -3.7 -5.6 ****** 1977 -19.7 -6.6 -0.8 -0.6 2.7 4.6 8.7 2.5 -1.3 -1.4 -2.8 -3.8 -1.6 1978 -6.8 -4.7 -4.0 -1.3 -0.0 2.1 2.1 3.7 1.4 -0.6 -3.3 -2.7 -1.2 1979 -8.3 -6.0 -3.8 -1.7 1.6 4.3 5.0 3.4 2.5 1.2 -2.6 -7.4 -1.0 1980 -9.3 -6.9 -2.7 0.4 1.4 3.1 2.8 4.3 1.8 0.9 -1.9 -5.1 -0.9 1981 -6.9 -5.5 -2.9 -0.9 0.8 2.0 4.1 2.7 0.4 -0.8 -3.5 -6.0 -1.4 1982 -8.9 -8.7 -5.4 -0.3 2.5 3.2 3.1 4.4 0.6 1.5 -2.9 -6.8 -1.5 1983 -9.5 -7.9 -5.1 -0.7 3.9 3.4 4.5 2.9 1.2 -2.5 -5.6 -6.6 -1.8 1984 -7.8 -6.6 -1.4 -2.5 -0.1 3.6 3.1 2.0 -0.5 -3.3 -1.9 -9.2 -2.1 1985 -6.6 -7.4 -3.6 -1.3 -0.6 1.6 2.8 3.1 0.0 -4.8 -2.1 -5.8 -2.1 1986 -6.7 -6.6 -3.8 2.5 2.8 3.6 5.3 4.9 0.5 -0.6 -2.2 -7.1 -0.6 1987 -7.7 -6.4 -3.6 -1.8 2.3 2.5 4.5 3.2 1.7 0.5 -2.5 -4.5 -1.0 1988 -6.3 -7.1 -3.7 -0.4 0.9 2.1 5.2 3.6 0.4 -1.5 -3.8 -4.9 -1.3 1989 -10.9 -10.0 -4.7 -1.5 1.6 2.2 3.8 3.4 1.5 -1.5 ****** -5.1 ****** 1990 -7.2 -6.4 -3.4 -1.7 1.8 5.3 ****** ****** ****** ****** -4.5 -5.7 ****** 1991 -4.7 -4.2 -1.5 0.2 0.4 3.1 4.2 3.5 -0.1 1.5 -3.1 -3.2 -0.3 1992 -10.1 -6.9 -4.7 -1.3 2.4 3.5 4.0 3.6 -1.2 -3.7 -2.7 -3.5 -1.7 1993 -6.2 -4.9 -2.7 -1.7 1.9 2.5 5.8 6.3 1.5 -0.2 -2.4 -3.6 -0.3 1994 -6.5 -6.1 -2.9 0.6 2.3 4.3 10.4 5.5 3.3 1.9 -0.6 -5.9 0.5 1995 -5.6 -4.8 -4.0 1.4 2.0 2.3 2.4 3.0 1.1 -2.2 -5.1 -6.5 -1.3 1996 -9.1 -2.5 -2.1 -0.9 3.2 1.8 3.2 2.6 0.8 -1.5 -3.6 -4.3 -1.0 1997 -6.9 -6.6 -3.8 -0.7 1.5 4.7 10.9 2.6 0.4 -0.3 -1.2 -5.5 -0.4 1998 -7.2 -4.6 -2.2 -0.7 1.1 2.3 5.7 3.3 0.8 -0.9 -3.9 -4.1 -0.9 1999 -4.2 -3.3 -3.4 -1.1 -0.6 0.3 2.8 1.2 -2.0 -3.1 -2.5 -6.7 -1.9 2000 -5.7 -7.6 -6.4 -2.3 -2.3 0.5 7.4 6.2 4.9 5.5 -1.1 -3.2 -0.4 2001 -5.7 -3.9 -1.7 -1.5 1.9 0.5 3.1 2.8 0.8 1.4 -2.9 -0.4 -0.5 2002 -6.0 -4.1 -3.8 0.4 -0.5 1.2 2.7 1.7 1.0 -2.8 -1.5 -3.5 -1.3 2003 -6.8 -4.1 -3.5 0.2 0.5 1.7 5.7 2.3 0.4 -1.1 -3.8 -4.1 -1.0 MEAN -8.2 -6.1 -3.4 -0.9 1.3 2.5 4.9 3.4 0.3 -1.6 -3.5 -5.7 -1.4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 2.07 5.81 4.95 4.70 5.06 5.41 7.42 5.78 4.85 2.81 3.37 3.14 4.61 1965 3.29 ****** 3.53 3.79 4.56 5.71 6.31 7.71 4.15 4.92 4.39 3.36 ****** 1966 4.14 3.92 4.18 4.65 5.13 5.04 10.30 12.53 6.36 5.65 3.17 3.11 5.68 1967 2.70 3.49 3.81 4.61 5.52 5.16 12.18 7.34 6.14 3.67 3.47 3.32 5.12 1968 2.83 3.27 4.09 5.68 7.16 7.33 6.97 7.18 5.63 4.52 4.62 3.82 5.26 1969 3.26 3.58 4.90 4.86 5.48 5.73 6.09 6.02 4.17 4.77 3.79 3.09 4.65 1970 2.73 3.39 3.86 4.60 5.80 6.44 7.41 7.28 5.09 3.35 2.70 2.68 4.61 1971 2.19 3.10 3.99 4.81 6.14 6.42 6.89 6.52 4.48 3.74 4.15 3.04 4.62 1972 2.59 2.37 3.98 5.40 5.57 5.86 6.26 5.60 4.54 3.68 4.13 3.52 4.46 1973 2.81 4.23 3.68 4.21 4.87 4.80 6.95 4.58 4.24 3.47 2.98 2.81 4.13 1974 2.26 2.60 4.53 4.21 5.13 5.44 6.53 5.53 4.41 4.04 3.31 2.35 4.19 1975 2.64 2.53 3.55 4.67 5.90 6.31 6.50 5.68 4.56 3.96 4.08 3.11 4.46 1976 ****** 3.33 3.48 5.04 6.00 6.54 9.16 5.84 4.94 4.25 3.91 3.41 ****** 1977 1.47 3.26 4.83 4.81 6.07 6.95 9.36 6.03 4.49 4.55 4.18 3.86 4.99 1978 3.12 3.58 3.78 4.56 4.96 5.90 5.83 6.49 5.49 4.75 4.02 4.12 4.72 1979 2.80 3.26 3.89 4.43 5.63 6.69 7.06 6.33 5.92 5.45 4.19 2.97 4.88 1980 2.62 3.25 4.14 5.14 5.44 6.17 6.04 6.71 5.67 5.36 4.40 3.49 4.87 1981 3.05 3.40 4.09 4.73 5.30 5.71 6.67 5.97 5.09 4.70 3.89 3.20 4.65 1982 2.58 2.63 3.38 4.90 5.95 6.21 6.11 6.74 5.16 5.56 4.13 3.12 4.71 1983 2.55 2.87 3.49 4.76 6.53 6.29 6.78 6.11 5.40 4.19 3.32 3.14 4.62 1984 2.91 3.14 4.61 4.21 4.98 6.42 6.20 5.68 4.73 3.98 4.38 2.63 4.49 1985 3.46 2.94 3.91 4.58 4.78 5.53 6.08 6.13 4.96 3.50 4.31 3.32 4.46 1986 3.11 3.12 3.82 5.97 6.09 6.43 7.16 7.01 5.17 4.75 4.34 3.00 5.00 1987 2.89 3.18 3.89 4.48 5.81 5.94 6.87 6.26 5.64 5.24 4.23 3.65 4.84 1988 3.20 3.07 3.88 4.91 5.27 5.69 7.11 6.33 5.09 4.48 3.85 3.55 4.70 1989 2.31 2.54 3.56 4.51 5.55 5.78 6.45 6.25 5.50 4.49 ****** 3.52 ****** 1990 3.04 3.26 3.94 4.50 5.66 7.29 ****** ****** ****** ****** 3.59 3.33 ****** 1991 3.66 3.74 4.58 5.07 5.12 6.19 6.69 6.37 4.97 5.61 3.99 4.09 5.01 1992 2.58 3.14 3.68 4.64 5.98 6.31 6.57 6.39 4.54 3.98 4.25 3.89 4.66 1993 3.26 3.67 4.17 4.46 5.76 5.93 7.47 7.71 5.60 4.93 4.25 3.87 5.09 1994 3.20 3.24 4.09 5.25 5.86 6.80 10.26 7.41 6.34 5.69 4.86 3.34 5.53 1995 3.38 3.58 3.78 5.61 5.80 5.84 5.87 6.11 5.32 4.26 3.50 3.21 4.69 1996 2.72 4.19 4.34 4.77 6.22 5.63 6.19 5.97 5.24 4.53 3.89 3.68 4.78 1997 3.08 3.12 3.83 4.82 5.55 7.03 11.18 5.97 5.12 4.85 4.64 3.41 5.22 1998 3.05 3.69 4.40 4.85 5.36 5.82 7.40 6.24 5.23 4.69 3.74 3.77 4.85 1999 3.76 4.01 3.99 4.71 4.79 5.05 6.03 5.40 4.31 3.98 4.25 3.13 4.45 2000 3.33 3.01 3.26 4.27 4.23 5.12 8.39 7.92 7.23 7.51 4.95 4.30 5.29 2001 3.42 3.81 4.44 4.45 5.74 5.16 6.14 6.08 5.20 5.56 4.07 4.89 4.91 2002 3.38 3.73 3.85 5.16 4.81 5.43 5.97 5.58 5.28 4.02 4.55 3.97 4.64 2003 3.06 3.79 3.98 5.19 5.14 5.55 7.50 5.80 5.07 4.64 3.83 3.86 4.78 MEAN 2.94 3.38 4.00 4.77 5.52 5.98 7.24 6.48 5.16 4.57 3.99 3.43 4.79 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 2.54 7.20 6.15 5.87 6.34 6.81 9.34 7.29 6.11 3.53 4.19 3.88 5.77 1965 4.06 ****** 4.40 4.72 5.72 7.18 7.94 9.67 5.22 6.15 5.46 4.17 ****** 1966 5.13 4.86 5.20 5.80 6.43 6.35 12.85 15.58 7.96 7.04 3.96 3.86 7.08 1967 3.34 4.32 4.73 5.74 6.90 6.48 15.17 9.22 7.67 4.59 4.32 4.12 6.38 1968 3.50 4.04 5.08 7.06 8.93 9.18 8.75 9.02 7.06 5.66 5.75 4.74 6.57 1969 4.03 4.43 6.10 6.06 6.86 7.20 7.67 7.56 5.22 5.98 4.71 3.83 5.81 1970 3.37 4.21 4.79 5.75 7.27 8.11 9.32 9.15 6.39 4.19 3.37 3.32 5.77 1971 2.70 3.84 4.96 5.98 7.69 8.07 8.66 8.20 5.63 4.68 5.16 3.77 5.78 1972 3.20 2.92 4.94 6.72 6.95 7.36 7.87 7.02 5.70 4.61 5.14 4.36 5.57 1973 3.47 5.24 4.57 5.25 6.10 6.04 8.73 5.77 5.34 4.35 3.71 3.48 5.17 1974 2.79 3.22 5.63 5.25 6.42 6.83 8.20 6.96 5.55 5.04 4.14 2.91 5.24 1975 3.26 3.13 4.41 5.81 7.38 7.92 8.17 7.14 5.73 4.95 5.07 3.86 5.57 1976 ****** 4.12 4.31 6.27 7.49 8.20 11.48 7.34 6.21 5.32 4.87 4.23 ****** 1977 1.81 4.05 6.01 5.99 7.59 8.72 11.74 7.59 5.64 5.69 5.19 4.79 6.23 1978 3.87 4.45 4.69 5.69 6.21 7.42 7.34 8.17 6.89 5.95 4.99 5.12 5.90 1979 3.47 4.05 4.83 5.53 7.03 8.39 8.87 7.96 7.43 6.81 5.22 3.67 6.11 1980 3.24 4.02 5.14 6.41 6.80 7.76 7.60 8.43 7.12 6.71 5.49 4.32 6.09 1981 3.77 4.22 5.09 5.90 6.64 7.17 8.39 7.52 6.40 5.87 4.84 3.98 5.81 1982 3.20 3.26 4.19 6.12 7.46 7.81 7.69 8.49 6.49 6.94 5.13 3.86 5.89 1983 3.15 3.55 4.32 5.94 8.17 7.91 8.54 7.70 6.79 5.24 4.15 3.90 5.78 1984 3.60 3.90 5.73 5.26 6.22 8.06 7.80 7.16 5.94 4.98 5.45 3.25 5.61 1985 4.29 3.64 4.87 5.71 5.99 6.96 7.66 7.70 6.23 4.38 5.37 4.11 5.58 1986 3.86 3.87 4.75 7.43 7.61 8.07 8.99 8.80 6.48 5.95 5.39 3.72 6.24 1987 3.58 3.95 4.82 5.59 7.28 7.46 8.63 7.87 7.08 6.53 5.27 4.53 6.05 1988 3.97 3.80 4.83 6.13 6.61 7.15 8.95 7.96 6.40 5.61 4.79 4.41 5.88 1989 2.85 3.15 4.43 5.64 6.94 7.27 8.12 7.87 6.90 5.62 ****** 4.36 ****** 1990 3.76 4.03 4.90 5.61 7.09 9.16 ****** ****** ****** ****** 4.47 4.14 ****** 1991 4.53 4.63 5.69 6.33 6.41 7.78 8.43 8.02 6.25 7.00 4.97 5.06 6.26 1992 3.18 3.88 4.56 5.77 7.46 7.92 8.27 8.03 5.70 4.99 5.29 4.82 5.82 1993 4.04 4.54 5.17 5.56 7.20 7.45 9.38 9.67 7.03 6.17 5.30 4.81 6.36 1994 3.97 4.02 5.09 6.55 7.32 8.53 12.85 9.31 7.94 7.10 6.04 4.14 6.91 1995 4.19 4.43 4.71 6.98 7.24 7.32 7.40 7.69 6.68 5.33 4.36 3.97 5.86 1996 3.37 5.20 5.39 5.95 7.77 7.07 7.78 7.50 6.58 5.67 4.85 4.57 5.97 1997 3.82 3.87 4.75 6.01 6.94 8.80 13.95 7.52 6.43 6.07 5.76 4.23 6.51 1998 3.78 4.57 5.47 6.06 6.72 7.30 9.29 7.86 6.57 5.86 4.67 4.70 6.07 1999 4.65 4.98 4.95 5.88 6.01 6.35 7.60 6.80 5.42 4.99 5.29 3.89 5.57 2000 4.12 3.73 4.05 5.35 5.31 6.45 10.52 9.93 9.06 9.35 6.15 5.33 6.61 2001 4.23 4.72 5.52 5.57 7.18 6.49 7.73 7.65 6.54 6.96 5.07 6.06 6.14 2002 4.18 4.63 4.79 6.43 6.03 6.82 7.51 7.03 6.65 5.04 5.66 4.91 5.81 2003 3.79 4.70 4.94 6.46 6.44 6.98 9.43 7.30 6.38 5.81 4.77 4.79 5.98 MEAN 3.63 4.19 4.97 5.95 6.90 7.51 9.09 8.14 6.48 5.71 4.97 4.25 5.98 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 0.54 1.36 4.73 7.39 14.86 23.13 28.90 29.15 21.24 12.68 6.31 1.16 12.62 1965 0.66 ****** 5.56 6.74 15.33 19.63 24.11 19.87 18.86 10.18 5.86 3.58 ****** 1966 2.75 2.44 3.86 6.89 13.92 21.55 18.79 15.98 15.07 9.15 7.10 3.53 10.09 1967 1.65 1.28 2.84 5.16 10.88 18.38 18.88 22.45 15.25 10.88 5.16 2.57 9.61 1968 2.09 1.47 4.73 4.35 7.92 15.72 20.73 20.78 16.27 11.28 4.78 2.57 9.39 1969 1.36 1.84 4.67 7.19 12.28 19.75 25.65 21.53 12.42 14.82 4.53 4.34 10.87 1970 2.22 3.66 3.93 10.67 16.28 23.59 25.48 24.99 17.93 12.09 8.53 2.58 12.66 1971 1.32 1.47 4.13 5.52 12.58 19.74 23.83 22.49 16.21 11.13 3.98 2.81 10.43 1972 1.03 1.12 2.55 5.44 7.80 17.59 24.25 17.52 17.05 12.05 5.52 1.46 9.45 1973 1.29 2.59 4.97 7.96 13.19 22.48 23.98 23.82 19.25 12.53 6.90 3.69 11.89 1974 1.24 1.65 4.05 7.63 12.39 20.27 20.88 22.55 16.97 8.76 7.22 2.08 10.47 1975 1.63 1.93 3.68 6.21 11.03 18.29 24.40 23.56 17.33 10.68 4.51 2.17 10.45 1976 ****** 1.39 2.36 5.38 9.09 17.42 22.04 22.16 17.62 12.04 5.68 4.14 ****** 1977 1.23 3.34 5.82 6.47 10.15 18.18 23.80 23.26 17.64 9.43 4.17 2.74 10.52 1978 2.62 3.25 4.14 7.99 12.04 19.50 22.21 22.62 18.03 11.00 3.56 3.34 10.86 1979 2.15 3.39 3.83 8.62 9.72 17.29 23.72 20.76 15.91 9.97 6.42 1.88 10.31 1980 1.61 1.63 3.31 8.34 11.52 20.90 22.45 22.16 16.69 11.19 5.89 2.65 10.70 1981 2.04 2.66 4.86 7.10 11.81 17.53 23.53 24.10 16.80 9.43 5.84 4.45 10.85 1982 2.29 2.18 3.30 9.66 13.12 22.02 23.83 25.49 17.45 7.79 3.49 1.49 11.01 1983 1.15 1.53 2.62 6.19 12.21 20.80 24.76 24.52 19.92 10.49 6.75 3.16 11.17 1984 1.94 2.82 4.08 8.28 8.86 18.22 22.54 25.19 18.62 9.21 4.44 3.01 10.60 1985 2.29 2.86 4.61 7.06 12.50 21.48 25.13 20.02 17.64 11.55 5.48 2.18 11.07 1986 2.73 2.27 3.47 5.18 9.97 17.30 21.22 18.32 14.80 11.27 3.50 1.76 9.32 1987 2.42 2.94 3.19 8.26 13.92 19.04 20.60 20.45 16.82 8.18 6.47 3.56 10.49 1988 2.69 2.13 5.03 7.76 13.41 18.95 24.09 22.47 19.30 12.31 5.60 3.56 11.44 1989 1.56 1.82 4.18 8.08 12.08 20.52 23.53 22.61 17.43 10.99 ****** 2.84 ****** 1990 1.58 2.04 4.26 7.44 13.78 22.72 ****** ****** ****** ****** 6.19 3.99 ****** 1991 1.52 2.11 3.95 7.95 11.55 18.52 26.03 25.68 20.09 8.52 6.03 1.45 11.12 1992 1.00 1.27 2.27 5.89 8.65 15.58 23.31 20.95 15.33 10.42 5.39 1.94 9.33 1993 1.66 1.62 2.74 6.47 9.56 16.76 19.29 17.78 17.47 9.25 5.25 4.43 9.36 1994 2.94 3.11 4.26 7.35 9.58 16.28 20.41 23.75 13.88 8.19 3.85 2.35 9.66 1995 2.81 2.17 4.39 5.25 9.61 15.62 24.09 22.62 17.44 10.63 7.18 1.70 10.29 1996 1.36 1.99 2.96 6.93 10.55 17.95 19.55 20.60 18.23 10.98 5.97 3.80 10.07 1997 2.41 2.95 2.80 5.94 10.72 15.06 18.84 24.29 16.48 11.21 3.89 2.29 9.74 1998 1.30 1.90 3.68 7.78 12.06 17.81 20.32 21.83 17.02 10.87 8.03 6.47 10.76 1999 1.69 2.73 3.80 7.62 13.82 19.92 23.01 23.09 19.11 12.15 5.27 4.73 11.41 2000 2.19 2.17 5.27 11.00 15.34 20.01 19.75 19.88 15.26 6.36 3.32 1.82 10.20 2001 1.97 2.65 5.11 9.81 12.85 21.39 25.18 23.51 18.46 11.43 5.74 1.98 11.67 2002 1.92 2.95 5.85 6.38 13.08 18.15 21.76 23.35 20.01 13.02 4.37 1.82 11.06 2003 2.85 2.60 4.21 7.53 11.35 18.00 23.46 23.33 18.06 11.81 6.06 2.78 11.00 MEAN 1.84 2.24 4.00 7.22 11.78 19.08 22.78 22.29 17.32 10.66 5.49 2.87 10.63 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 78 85 62 51 35 28 29 25 27 28 48 79 48 1965 84 *** 50 48 33 30 29 36 27 45 54 60 *** 1966 69 70 63 52 36 27 45 52 40 51 42 61 51 1967 67 77 66 56 45 29 47 33 38 38 51 64 51 1968 66 73 57 66 58 42 33 34 35 39 59 67 52 1969 75 72 61 52 40 30 27 32 36 34 56 52 47 1970 65 57 61 41 36 29 31 32 32 32 33 63 43 1971 66 72 58 56 41 33 31 32 31 37 63 62 49 1972 74 71 69 60 52 32 29 33 32 34 56 79 52 1973 74 72 53 44 35 26 32 24 27 31 43 54 43 1974 69 66 61 45 40 30 32 28 30 43 43 60 46 1975 67 61 58 53 44 34 31 29 31 38 59 66 48 1976 *** 75 67 58 49 36 40 31 34 37 50 55 *** 1977 56 59 55 53 46 38 36 30 30 45 59 67 48 1978 63 62 58 46 39 32 29 30 34 41 64 65 47 1979 67 61 61 44 47 38 32 32 37 46 52 70 49 1980 69 71 65 48 40 31 29 34 36 43 54 67 49 1981 68 64 56 50 41 33 30 28 35 46 52 52 46 1982 61 64 60 42 40 30 28 29 32 54 64 75 48 1983 76 73 67 55 44 32 29 29 32 41 45 64 49 1984 70 64 63 43 46 35 30 27 32 42 61 56 47 1985 64 61 56 50 37 29 28 33 33 35 56 69 46 1986 65 67 62 64 49 37 34 38 37 42 65 71 53 1987 64 62 65 46 39 32 34 32 35 51 52 61 48 1988 64 68 55 48 37 31 31 32 32 38 54 62 46 1989 68 67 56 45 42 31 30 30 35 40 *** 64 *** 1990 73 70 58 49 38 33 *** *** *** *** 51 60 *** 1991 77 72 64 51 40 34 30 30 32 54 54 79 51 1992 76 77 70 54 52 40 30 32 32 39 56 75 53 1993 72 74 69 51 48 35 36 39 34 43 53 56 51 1994 61 60 61 53 49 39 42 32 41 53 64 68 52 1995 63 70 55 61 49 39 28 29 33 41 44 73 49 1996 74 76 69 52 48 32 32 30 32 40 52 61 50 1997 69 63 68 57 45 41 45 28 32 42 64 70 52 1998 77 74 64 49 40 34 35 31 33 42 44 49 48 1999 76 69 64 48 35 29 29 26 27 36 55 54 46 2000 71 66 51 38 30 29 38 37 42 64 66 74 51 2001 71 69 60 41 42 28 28 28 31 43 55 80 48 2002 74 67 53 57 37 31 29 27 30 33 64 77 48 2003 66 69 60 53 41 33 32 27 31 39 51 67 47 MEAN 69 68 61 51 42 33 33 31 33 42 54 65 49 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 90 95 83 72 53 45 45 40 44 45 68 90 64 1965 91 *** 69 70 54 44 45 50 45 64 73 78 *** 1966 80 82 78 72 55 43 60 67 61 74 64 81 68 1967 82 87 79 71 65 46 62 50 58 65 66 77 67 1968 80 83 73 79 74 61 49 51 51 56 77 80 68 1969 85 85 73 71 55 46 44 51 57 54 77 70 64 1970 82 76 81 63 55 46 47 51 52 53 48 79 61 1971 79 82 76 74 56 50 52 52 51 61 79 76 66 1972 85 83 82 80 71 47 47 52 54 57 80 90 69 1973 86 87 73 60 50 44 50 43 45 48 68 73 61 1974 79 77 74 62 62 49 52 46 51 66 62 75 63 1975 81 74 76 72 59 53 55 52 52 60 76 78 66 1976 *** 84 78 75 64 55 65 56 61 59 67 69 *** 1977 71 73 72 68 63 60 47 52 52 62 76 81 65 1978 80 76 76 67 57 54 48 46 55 63 83 84 66 1979 82 81 80 65 65 56 52 50 56 67 73 82 67 1980 84 79 80 67 56 50 48 57 57 61 76 83 67 1981 82 83 76 67 60 48 47 46 57 70 73 72 65 1982 76 79 76 58 57 45 42 45 50 75 83 86 64 1983 88 83 84 74 59 47 46 47 55 63 71 79 66 1984 82 79 75 63 65 52 50 47 56 66 78 70 65 1985 78 74 72 68 54 49 48 52 54 55 76 83 64 1986 83 80 78 79 66 58 55 59 60 64 79 81 70 1987 77 78 79 64 59 49 48 47 56 68 72 74 64 1988 78 77 71 63 53 48 49 52 53 60 77 81 64 1989 79 77 73 62 60 49 47 48 57 62 *** 78 *** 1990 82 80 71 66 55 51 *** *** *** *** 72 75 *** 1991 86 85 80 73 60 50 48 49 52 80 80 90 69 1992 83 83 82 74 71 60 45 51 52 61 76 88 69 1993 80 82 83 68 63 51 52 56 51 55 67 67 65 1994 72 70 81 74 70 54 56 47 58 73 75 83 68 1995 75 79 68 78 68 58 43 41 51 63 65 85 65 1996 82 89 86 73 67 49 47 44 51 59 71 82 67 1997 85 78 86 77 63 59 55 43 48 63 82 87 69 1998 86 88 83 70 59 51 51 47 52 62 66 68 65 1999 88 85 84 69 54 45 44 41 45 55 75 77 64 2000 87 79 81 56 48 45 51 49 56 78 78 87 66 2001 78 84 82 60 60 44 43 43 47 57 76 93 64 2002 88 86 77 76 55 46 45 41 46 50 86 91 66 2003 86 84 76 72 60 49 45 41 49 59 70 83 65 MEAN 82 81 78 69 60 50 49 49 53 62 73 80 66 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 63 73 46 33 20 16 17 14 16 15 33 67 34 1965 73 *** 35 31 18 20 17 26 14 31 37 43 *** 1966 57 59 49 36 22 15 32 40 24 34 26 45 37 1967 52 64 52 43 30 18 36 22 22 20 35 52 37 1968 50 62 43 55 43 29 20 22 24 26 43 52 39 1969 63 57 49 35 27 19 16 18 20 20 39 33 33 1970 47 38 46 26 25 19 20 19 19 17 21 47 29 1971 49 59 43 43 30 22 18 19 18 21 48 48 35 1972 61 56 56 45 38 21 16 19 17 19 35 65 37 1973 60 56 36 31 24 15 19 11 16 17 21 37 29 1974 56 54 50 33 26 17 20 17 17 27 28 45 33 1975 54 46 42 40 34 22 16 15 17 24 42 52 34 1976 *** 66 55 45 37 25 25 16 18 23 36 40 *** 1977 36 47 43 40 34 24 28 17 16 33 45 56 35 1978 47 49 44 31 27 19 17 21 21 27 46 50 33 1979 52 45 46 30 36 26 20 21 26 33 38 60 36 1980 58 61 53 33 29 19 18 19 23 32 38 54 36 1981 57 52 41 38 28 22 20 18 19 30 39 40 34 1982 51 55 49 32 29 21 19 20 21 41 49 64 38 1983 65 64 54 42 34 22 20 18 18 26 30 50 37 1984 58 51 55 29 33 24 18 15 18 26 46 40 34 1985 49 49 43 37 26 18 16 22 20 20 41 56 33 1986 49 56 51 51 38 24 23 25 23 28 56 61 40 1987 52 51 54 33 26 22 25 22 24 39 37 51 36 1988 54 60 43 38 27 22 21 20 19 24 40 49 35 1989 57 58 46 34 30 19 20 20 22 27 *** 49 *** 1990 61 58 43 34 26 22 *** *** *** *** 33 44 *** 1991 65 58 48 35 27 21 17 16 17 32 32 67 36 1992 69 69 57 37 37 24 20 20 20 22 37 60 39 1993 64 66 56 37 34 24 25 27 22 34 41 44 40 1994 49 50 43 38 34 26 31 22 29 36 53 50 38 1995 51 61 43 46 34 23 16 20 20 26 27 59 36 1996 64 63 53 34 33 20 22 21 19 23 35 43 36 1997 54 48 54 39 30 28 36 19 22 26 48 54 38 1998 65 59 47 32 27 21 24 20 20 27 27 31 33 1999 62 52 46 32 23 16 18 16 14 20 36 34 31 2000 56 52 29 23 18 17 29 27 31 53 54 61 38 2001 63 55 45 28 30 17 17 18 20 31 38 66 36 2002 56 50 34 41 24 20 19 18 19 21 42 61 34 2003 47 54 41 39 28 21 22 19 20 24 33 51 33 MEAN 56 56 47 36 29 21 21 20 20 27 38 51 35 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 0 2 8 4 2 0 0 0 0 0 2 6 24 1965 7 *** 4 5 2 0 0 0 0 4 3 1 *** 1966 5 7 3 1 1 0 0 0 0 4 0 4 25 1967 5 7 3 9 3 0 0 0 0 0 5 1 33 1968 2 0 6 10 1 0 0 0 0 1 5 5 30 1969 10 6 7 7 2 0 0 0 0 0 3 2 37 1970 3 6 5 4 2 0 0 0 0 0 0 4 24 1971 0 4 4 13 0 0 0 0 0 0 5 3 29 1972 2 3 9 8 4 0 0 1 0 0 1 4 32 1973 7 4 7 6 0 0 1 0 0 0 1 2 28 1974 13 6 5 2 1 0 0 0 0 1 0 9 37 1975 7 8 1 1 2 0 2 0 0 0 4 11 36 1976 *** 9 12 6 5 0 2 0 0 5 3 7 *** 1977 7 1 3 7 1 0 0 0 0 3 5 7 34 1978 6 5 4 1 0 0 0 0 0 0 4 5 25 1979 5 4 6 1 6 2 0 0 0 2 1 5 32 1980 8 10 10 5 2 0 0 0 0 0 3 5 43 1981 8 7 5 7 1 0 0 0 0 0 5 0 33 1982 5 5 9 1 0 0 0 0 0 4 9 2 35 1983 11 5 9 3 2 0 0 0 0 0 0 3 33 1984 7 4 11 2 4 0 0 0 0 0 4 5 37 1985 6 5 3 1 0 0 0 0 0 0 1 7 23 1986 0 5 9 9 3 0 0 0 0 0 11 7 44 1987 3 3 11 3 0 0 0 1 0 5 1 6 33 1988 5 6 8 4 0 0 0 0 0 0 6 5 34 1989 6 7 6 1 1 0 0 0 0 0 *** 8 *** 1990 9 6 4 1 0 0 *** *** *** *** 1 4 *** 1991 9 5 8 1 0 1 0 0 0 6 0 11 41 1992 8 7 7 7 5 0 0 0 0 0 2 10 46 1993 9 6 12 0 3 0 0 1 0 0 6 0 37 1994 5 3 4 2 3 0 1 0 0 1 12 8 39 1995 4 5 4 5 2 1 0 0 0 0 0 5 26 1996 7 9 12 5 1 0 0 0 0 0 0 3 37 1997 3 1 13 5 1 0 0 0 0 0 0 6 29 1998 7 8 8 2 1 0 0 0 0 3 0 3 32 1999 11 9 7 2 0 0 1 0 0 0 2 3 35 2000 8 6 2 0 0 0 0 0 0 0 2 10 28 2001 4 6 3 0 2 0 0 0 0 0 5 13 33 2002 7 3 3 6 1 0 0 0 0 0 5 9 34 2003 3 7 7 6 0 0 0 0 0 0 1 3 27 MEAN 6 5 7 4 2 0 0 0 0 1 3 5 33 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 5.4 9.4 13.4 14.2 19.8 21.4 28.2 23.5 18.4 15.4 10.8 9.2 1 YEAR - DAY 1994- 3 1964-17 1984-30 1974-23 1970-23 1970-20 1965-29 1994- 7 1970- 2 1969-11 1999- 8 1987-20 LOW. DRY 03 -28.5 -24.2 -18.0 -8.4 0.0 4.2 8.4 7.4 -0.2 -4.2 -11.4 -25.2 2 YEAR - DAY 1975-23 1972-11 1992- 2 1967- 2 2003- 1 1978-23 1968-17 1983-29 1981-30 1974-28 1973-10 1970-17 HIG. WET 03 3.4 9.2 8.4 9.4 14.2 14.2 18.4 18.2 12.4 9.4 7.0 4.4 3 YEAR - DAY 1969-23 1964-17 1984-28 1979-18 1970-22 1967-26 1967-16 1966- 3 1966- 1 1969-11 2000- 5 1991-10 LOW. WET 03 -29.2 -24.8 -18.2 -9.4 -2.2 0.2 4.4 3.2 -2.4 -6.2 -12.2 -25.4 4 YEAR - DAY 1975-23 1974- 5 1992- 2 1967- 2 2000-13 1996- 7 1985-29 1983-29 1965-26 1970-29 1973-10 1970-17 HIG. DRY 09 16.0 15.2 19.5 28.2 32.2 36.2 37.4 37.5 34.8 28.4 21.4 21.0 5 YEAR - DAY 2003-12 1966-28 1991-22 1979-18 1970-20 1964-10 1966-30 1991- 9 1991-10 1969- 4 1983- 1 1998-10 LOW. DRY 09 -18.4 -15.2 -5.4 -1.4 5.2 16.4 20.2 19.5 10.2 7.4 -1.4 -12.2 6 YEAR - DAY 1977-23 1974- 5 1976- 2 1975- 1 1972-13 1972-17 1987-31 1969-30 1969-30 1977-26 1982-30 1964-28 HIG. WET 09 8.2 9.5 12.2 17.2 18.2 19.4 28.4 28.2 22.5 20.2 13.4 10.2 7 YEAR - DAY 1965-30 1973-20 1968-15 1970-19 1975-21 1967-26 1967-18 1966- 3 1967- 5 2003-18 2000- 1 1998-10 LOW. WET 09 -18.8 -15.8 -6.4 -2.4 3.5 7.8 11.2 8.2 7.2 3.4 -3.2 -12.4 8 YEAR - DAY 1977-23 1974- 5 1979- 4 1975- 1 1972-13 1993- 4 1978-10 1972-29 1967-30 1974-28 1982-30 1964-28 HIG. DRY 15 10.2 14.2 15.4 24.4 30.4 31.8 33.4 32.5 28.6 22.8 19.2 10.6 9 YEAR - DAY 1966- 2 1973-20 1968-14 1979-18 1970-22 1990-28 1966-11 1970-12 1994- 2 1980- 3 1965- 5 1998-17 LOW. DRY 15 -19.2 -17.2 -11.4 -3.8 2.2 11.6 14.2 10.4 9.4 5.2 -7.4 -19.2 10 YEAR - DAY 1977-22 1974- 5 1976- 2 1967- 1 1972-13 1995- 2 1966-22 1969-29 1969-29 1984-19 1975-28 1964-19 HIG. WET 15 7.2 8.5 9.2 12.2 15.2 19.2 25.0 25.2 20.2 13.4 9.2 6.0 11 YEAR - DAY 1966- 6 1973-20 1977-14 1979-18 1970-21 1994- 9 1997-28 1966- 2 1966- 2 1976- 1 1980-14 1988- 6 LOW. WET 15 -20.4 -18.2 -12.4 -4.8 2.2 5.8 8.8 6.2 3.2 -0.2 -8.2 -19.4 12 YEAR - DAY 1977-23 1974- 5 1976- 2 1967- 1 1972-13 1967- 6 1968-16 1972-29 1969-20 1984-19 1975-28 1964-19 HIG. MIN. 5.0 7.5 8.5 11.0 15.5 18.5 21.5 23.0 16.0 12.5 9.0 5.5 13 YEAR - DAY 1994- 4 1964-17 1998-29 1996-24 1970-23 1967-26 1967-16 1994- 7 2000- 6 1969-11 1994- 5 2000- 1 LOW. MIN. -29.5 -26.5 -18.5 -10.5 -1.0 2.5 7.5 2.5 -2.5 -5.5 -12.5 -27.5 14 YEAR - DAY 1977-23 1972-11 1992- 2 1967- 2 1967- 1 1971- 3 1968-18 1980-25 1965-26 1970-26 1973-10 1964-20 HIG. MAX. 18.2 17.5 22.5 29.5 34.5 36.5 39.5 39.5 36.5 34.5 27.5 21.5 15 YEAR - DAY 1966- 6 1971-24 1984-10 1979-18 1970-19 1970- 5 1970-29 1975-23 1966-11 1970-12 1965- 4 1998-10 LOW. MAX. -11.5 -7.5 -3.5 -1.2 8.5 19.5 23.5 22.2 15.5 8.5 1.5 -7.5 16 YEAR - DAY 1983-28 1974- 4 1979- 4 1967- 1 1981- 1 1979- 3 1987-31 1992-31 1969-29 1965-27 1964-28 1970-16 HIG. PPTN 57.0 59.0 132.0 54.0 58.0 34.4 21.0 7.0 3.0 30.0 60.0 94.0 17 YEAR - DAY 1993- 8 1980-11 1998-18 1968- 2 1986- 4 1979- 3 1976-24 1972- 5 1998-12 1966-13 1967-24 1989- 4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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 22.8 25.6 23.0 21.8 21.2 21.0 23.2 25.0 26.0 25.8 25.6 23.4 18 YEAR - DAY 2003-12 1972-13 2002-12 2001-14 1988-14 1964-10 1991- 9 1991-25 1991- 3 1985- 1 1973-10 1998-10 DRY 15 - DRY 09 14.0 15.6 12.6 13.2 15.0 12.0 18.0 12.0 15.2 13.8 12.8 14.4 19 YEAR - DAY 2002- 4 1970- 2 1972- 2 1969- 5 1964-16 1970-20 1966-22 1969-27 1991-15 1967- 6 1995-27 1965-24 DRY 15 - DRY 03 17.4 21.0 18.4 15.8 16.6 18.2 18.0 18.6 21.6 19.4 19.8 18.0 20 YEAR - DAY 1986- 1 1972-13 1988-18 1989-12 2000-13 1978-23 1966-11 2000-28 1991- 3 1967-24 1973-10 1988-30 WET 09 - WET 03 19.6 25.4 18.4 14.4 13.4 12.8 16.0 17.3 15.3 19.8 16.0 19.6 21 YEAR - DAY 1972-21 1972-13 1992- 2 1988- 4 2000-13 1978-23 1966-25 1966-23 1968- 9 2003-18 1973-12 1965-23 WET 15 - WET 09 11.6 13.4 11.4 7.0 8.8 8.6 9.0 14.0 10.0 13.4 8.4 12.2 22 YEAR - DAY 1969-10 2001- 2 1972- 2 1970-10 1975-21 1967-25 1968-15 1966- 5 1966- 1 2003-18 1995-26 1964-20 WET 15 - WET 03 17.0 19.0 15.0 10.4 10.4 11.4 12.0 13.0 13.4 13.7 19.7 14.4 23 YEAR - DAY 1964-31 1972-13 1992- 2 1969-18 2000-13 1989- 3 1966-23 1966- 1 1986-15 1983-23 1973-10 1964-23 DAY BY DAY DRY 03 19.7 18.6 13.4 11.8 11.0 9.6 12.0 8.0 8.0 10.8 10.6 15.4 24 YEAR - DAY 1975-23 1999- 8 1988-20 1979-18 1999-15 1996- 7 1965-30 1988-18 1988- 1 1985-23 2002- 6 1964-24 DAY BY DAY WET 03 20.0 16.1 11.6 9.8 7.8 7.8 7.2 6.2 8.6 9.4 10.5 15.4 25 YEAR - DAY 1975-23 1989- 1 1988-20 2002- 4 1999-15 1996- 7 1985-30 1977-20 1966- 5 1976-19 1973-21 1964-24 DAY BY DAY DRY 09 11.4 13.0 12.6 14.8 11.0 9.8 10.4 9.2 10.0 12.8 11.4 14.6 26 YEAR - DAY 1989-19 1975- 1 1984-12 1975- 1 1972-13 1972-18 1973-21 1969-26 2003- 2 1966-14 1975-28 1971-21 DAY BY DAY WET 09 11.6 14.0 9.2 10.8 6.3 7.6 10.2 14.0 9.0 9.8 7.4 13.8 27 YEAR - DAY 1969-10 1971- 4 1979- 4 1970-20 1969- 1 1967-25 1967-19 1966- 6 1967- 8 2003-19 1975-28 1971-21 DAY BY DAY DRY 15 15.4 14.8 14.6 14.0 10.0 6.8 12.2 8.0 9.0 9.0 11.6 19.4 28 YEAR - DAY 1964-19 1974- 8 1966- 1 1979-18 1972-13 1980-17 1966-23 2000-29 1991-15 1984-19 1975-28 1971-21 DAY BY DAY WET 15 15.0 13.6 8.1 7.4 5.0 5.8 10.6 11.2 8.9 5.8 11.4 18.6 29 YEAR - DAY 1964-19 1974- 8 1976- 2 1975- 1 1964-21 1967-21 1966-23 1997- 1 1966- 5 1991- 7 1975-28 1971-21 DAY BY DAY MIN. 19.0 18.7 13.5 10.0 9.0 9.5 9.4 9.0 7.0 9.0 11.2 15.0 30 YEAR - DAY 1975-23 1999- 8 1988-21 1989- 1 1996-12 1996- 7 1967-19 1980-25 1965-27 1967-23 1973-21 1964-28 DAY BY DAY MAX. 11.0 12.0 12.0 14.0 11.5 5.7 8.9 9.0 8.0 12.0 10.7 13.0 31 YEAR - DAY 1964-31 1980- 1 1979- 4 1979-18 1969- 1 1964-10 1966-31 1975-23 1966-12 1966-14 1973-25 1971-21 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -9.1 5.6 7.5 9.5 14.2 19.7 25.7 24.0 19.4 11.2 5.9 -4.3 10.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -17.4 3.0 1.2 2.4 3.7 8.1 15.4 12.7 8.1 0.9 -1.9 -11.2 2.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. -0.7 8.1 13.7 16.7 24.7 31.4 35.9 35.4 30.6 21.5 13.7 2.5 19.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.7 5.1 12.5 14.3 21.0 23.3 20.5 22.7 22.5 20.6 15.6 13.7 17.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.04 5.99 4.62 4.79 5.10 5.62 7.53 5.55 4.41 2.43 3.03 2.21 4.36 MEAN OF MIXING RATIO AT 09 GMT. 3.06 6.23 5.20 4.70 5.02 5.35 7.88 5.93 5.47 2.98 3.58 4.09 4.96 MEAN OF MIXING RATIO AT 15 GMT. 2.10 5.20 5.02 4.62 5.05 5.25 6.84 5.86 4.68 3.03 3.49 3.12 4.52 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -27.5 1.2 -4.5 -3.5 1.5 4.5 11.5 10.5 4.5 -3.5 -8.5 -27.5 -27.5 DAY 20 10 1 12 2 1 1 3 26 29 29 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 11.5 18.5 21.5 29.5 36.2 38.5 38.5 35.5 28.5 19.5 9.5 38.5 DAY 31 23 24 6 31 10 11 15 4 1 16 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 2.5 25.0 28.4 20.0 5.0 0.0 0.0 0.0 0.0 0.0 45.0 27.5 45.0 DAY 1 10 13 14 1 ** ** ** ** ** 25 12 MONTHLY TOTAL PRECIPITATION IN MM. 4.9 49.0 124.4 55.0 10.0 0.0 0.0 0.0 0.0 0.0 59.0 90.5 392.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 45.4 16.5 0.0 38.1 NO. OF DAYS WITH PRECIPITATION. 2 2 8 4 2 0 0 0 0 0 3 6 27 NO. OF DAYS PRECIPITATION EQUAL 2 2 8 4 2 0 0 0 0 0 3 6 27 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 8 4 0 0 0 0 0 0 2 4 20 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 65 89 79 70 53 45 45 40 44 44 64 79 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 86 81 48 36 21 16 18 14 16 15 35 79 39 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 82 85 60 46 31 22 23 20 21 24 45 80 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 0 1 0 0 0 0 0 0 0 7 28 54 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 20 0 0 0 0 0 0 0 0 0 0 9 29 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 25 31 31 16 0 0 0 103 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 18 0 10 4 0 0 0 0 0 14 22 31 99 DATE OF START AND END FREEZING START = 17 OCT. END = 13 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -4.5 ***** 6.1 7.6 15.8 19.5 22.2 21.0 17.7 12.8 7.6 1.9 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -9.6 ***** -0.2 1.1 7.5 10.0 12.9 12.2 8.1 5.2 0.0 -6.0 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.6 ***** 12.3 14.1 24.2 28.9 31.5 29.7 27.4 20.4 15.1 9.7 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.2 ***** 12.5 13.0 16.7 18.9 18.6 17.5 19.3 15.2 15.1 15.7 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.34 ***** 3.47 3.82 5.25 5.54 6.49 7.21 4.47 4.91 3.88 2.40 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.11 ***** 3.64 3.80 4.13 6.23 6.62 8.57 4.41 5.13 4.73 4.02 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.42 ***** 3.49 3.75 4.30 5.38 5.82 7.35 3.58 4.72 4.56 3.66 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -22.5 ***** -6.2 -4.5 1.5 6.5 8.5 9.5 -2.5 2.5 -6.0 -16.5 ****** DAY 16 ** 17 4 5 1 7 11 26 15 25 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 ***** 17.5 22.5 28.2 33.5 38.5 33.5 32.5 26.5 27.5 14.5 ****** DAY 30 ** 11 29 20 21 28 1 5 5 4 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.5 ***** 60.0 25.0 14.0 0.0 0.0 0.0 0.0 23.0 14.0 12.5 ****** DAY 27 ** 13 19 2 ** ** ** ** 28 8 28 MONTHLY TOTAL PRECIPITATION IN MM. 91.9 ***** 113.0 74.0 20.0 0.0 0.0 0.0 0.0 60.5 40.0 15.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 49.4 22.7 0.0 27.9 NO. OF DAYS WITH PRECIPITATION. 9 *** 4 6 2 0 0 0 0 5 3 2 *** NO. OF DAYS PRECIPITATION EQUAL 9 *** 4 6 2 0 0 0 0 5 3 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 *** 3 5 1 0 0 0 0 3 3 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 *** 67 63 53 44 44 50 45 63 72 69 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 87 *** 38 36 18 22 20 28 17 32 38 49 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 86 *** 45 45 26 24 21 29 17 38 53 61 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 *** 5 2 0 0 0 0 0 0 5 26 *** 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 16 *** 0 0 0 0 0 0 0 0 0 1 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 5 22 10 2 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. 30 *** 17 12 0 0 0 0 1 0 17 31 *** DATE OF START AND END FREEZING START = 26 SEP. END = 22 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. 2.5 1.6 4.1 8.7 15.9 20.3 22.5 22.3 17.6 12.4 6.0 1.6 11.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.6 -4.7 -2.9 1.7 8.3 11.1 13.4 13.1 7.5 4.7 -3.4 -5.9 3.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.6 7.8 11.2 15.8 23.6 29.5 31.6 31.6 27.7 20.1 15.4 9.0 19.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.2 12.5 14.1 14.1 15.3 18.4 18.2 18.5 20.2 15.4 18.8 14.9 16.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.16 2.93 3.33 4.56 5.69 5.50 8.40 8.61 5.63 5.40 2.68 2.71 4.88 MEAN OF MIXING RATIO AT 09 GMT. 4.83 4.78 4.95 4.84 5.21 4.87 11.55 14.95 7.12 6.27 3.52 3.60 6.38 MEAN OF MIXING RATIO AT 15 GMT. 4.41 4.05 4.27 4.55 4.49 4.76 10.96 14.03 6.34 5.27 3.31 3.03 5.79 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.5 -11.5 -10.5 -5.5 1.8 7.5 9.5 10.5 4.5 2.0 -10.5 -15.5 -15.5 DAY 16 5 29 1 9 1 23 24 5 24 26 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.2 16.5 16.5 22.2 29.5 32.5 37.4 33.5 36.5 30.0 17.5 15.2 37.4 DAY 6 28 8 30 21 24 30 2 11 11 2 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 38.0 15.0 35.0 33.0 17.0 0.0 0.0 0.0 0.0 30.0 0.0 24.0 38.0 DAY 31 2 27 3 6 ** ** ** ** 13 ** 20 MONTHLY TOTAL PRECIPITATION IN MM. 108.6 75.0 68.9 33.0 17.0 0.0 0.0 0.0 0.0 114.0 0.0 53.0 469.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.8 10.6 0.0 35.6 NO. OF DAYS WITH PRECIPITATION. 6 9 5 1 1 0 0 0 0 4 0 5 31 NO. OF DAYS PRECIPITATION EQUAL 6 9 4 1 1 0 0 0 0 4 0 5 30 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 4 3 1 1 0 0 0 0 4 0 2 20 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 76 75 69 55 43 59 63 61 72 64 76 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 65 55 40 25 16 34 43 28 39 27 51 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 70 60 47 28 20 41 51 31 43 36 57 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 14 15 12 3 0 0 0 0 0 0 11 22 77 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 0 11 25 30 4 1 0 0 71 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 25 25 22 10 0 0 0 0 0 0 26 29 137 DATE OF START AND END FREEZING START = 4 NOV. END = 14 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -4.3 -2.0 2.4 7.2 14.2 18.6 23.3 21.5 16.6 11.1 4.5 -0.4 9.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -11.1 -7.5 -3.2 1.4 7.0 9.8 14.3 11.5 6.4 2.0 -3.3 -7.7 1.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.5 3.6 8.0 13.1 21.3 27.3 32.4 31.6 26.7 20.2 12.3 7.0 17.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.6 11.1 11.2 11.7 14.3 17.5 18.1 20.1 20.3 18.2 15.6 14.7 15.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.69 2.61 3.18 4.35 5.98 5.44 10.22 6.93 5.45 4.21 2.92 2.30 4.61 MEAN OF MIXING RATIO AT 09 GMT. 3.66 4.39 4.34 4.83 5.47 5.69 15.02 8.30 6.96 3.39 4.10 4.49 5.89 MEAN OF MIXING RATIO AT 15 GMT. 2.77 3.47 3.93 4.66 5.11 4.34 11.30 6.78 6.01 3.41 3.39 3.17 4.86 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -22.0 -19.5 -10.0 -10.5 -1.0 3.5 8.5 8.5 2.0 -3.5 -7.5 -13.5 -22.0 DAY 23 6 28 2 1 7 28 28 27 24 14 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.4 9.5 14.2 19.5 25.5 32.5 34.5 33.5 33.5 26.5 18.5 13.5 34.5 DAY 18 27 14 24 13 30 12 3 9 4 1 17 24 HOUR MAXIMUM PRECIPITATION IN MM. 32.0 23.0 35.0 20.0 19.2 0.0 0.0 0.0 0.0 0.0 60.0 5.0 60.0 DAY 21 12 2 5 6 ** ** ** ** ** 24 8 MONTHLY TOTAL PRECIPITATION IN MM. 97.8 113.0 78.0 109.0 39.2 0.0 0.0 0.0 0.0 0.0 170.0 9.0 616.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 46.9 24.1 0.0 29.1 NO. OF DAYS WITH PRECIPITATION. 6 8 3 9 3 0 0 0 0 0 6 2 37 NO. OF DAYS PRECIPITATION EQUAL 6 8 3 9 3 0 0 0 0 0 6 2 37 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 6 2 6 2 0 0 0 0 0 4 0 24 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 63 74 72 68 64 45 61 50 58 65 60 69 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 77 57 46 32 21 41 24 24 21 45 63 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 78 69 56 38 21 39 25 32 29 47 60 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 17 12 4 0 0 0 0 0 0 13 26 98 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 7 3 1 1 0 0 0 0 0 0 0 0 12 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 29 28 3 0 0 0 65 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 26 26 9 1 0 0 0 0 8 25 31 157 DATE OF START AND END FREEZING START = 23 OCT. END = 1 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -2.8 -2.7 6.0 7.8 12.9 17.6 20.3 20.8 16.4 11.9 6.6 1.6 9.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -9.3 -9.2 0.2 1.4 5.1 7.7 10.8 11.2 5.1 1.9 -0.1 -4.2 1.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.7 3.9 11.9 14.2 20.6 27.4 29.8 30.5 27.7 21.8 13.3 7.5 17.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.0 13.1 11.7 12.8 15.5 19.7 19.0 19.3 22.6 19.9 13.4 11.7 16.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.93 2.08 3.83 4.98 6.77 7.23 6.59 6.95 4.44 3.79 4.42 2.94 4.66 MEAN OF MIXING RATIO AT 09 GMT. 3.78 4.38 4.59 6.24 7.45 7.77 8.15 7.86 7.35 5.31 4.78 4.44 6.01 MEAN OF MIXING RATIO AT 15 GMT. 2.77 3.34 3.84 5.82 7.26 6.99 6.19 6.74 5.09 4.47 4.66 4.08 5.10 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -21.5 -21.5 -7.0 -3.5 2.2 4.5 7.5 7.5 2.5 -3.5 -6.5 -9.5 -21.5 DAY 19 7 26 6 4 1 18 27 21 29 19 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.5 12.5 18.5 21.5 25.5 31.5 35.5 32.5 32.5 26.8 19.5 12.5 35.5 DAY 14 29 14 17 22 17 8 6 4 7 9 25 24 HOUR MAXIMUM PRECIPITATION IN MM. 40.0 4.5 20.0 54.0 8.5 0.0 0.0 0.0 0.0 24.0 48.0 59.0 59.0 DAY 16 2 29 2 2 ** ** ** ** 26 7 28 MONTHLY TOTAL PRECIPITATION IN MM. 51.8 11.3 79.0 258.0 10.7 0.0 0.0 0.0 0.0 28.0 122.2 120.8 681.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 20.8 39.4 0.0 39.7 NO. OF DAYS WITH PRECIPITATION. 4 8 6 12 2 0 0 0 0 2 7 8 49 NO. OF DAYS PRECIPITATION EQUAL 4 4 6 12 2 0 0 0 0 2 7 8 45 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 6 9 0 0 0 0 0 1 4 2 23 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 63 68 70 72 74 61 48 51 50 53 73 69 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 75 49 58 43 29 27 24 26 28 44 61 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 66 75 51 68 56 35 25 27 29 36 59 70 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 24 7 0 0 0 0 0 0 0 4 15 74 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 9 5 0 0 0 0 0 0 0 0 0 0 14 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 12 20 2 0 0 0 35 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 29 15 13 0 0 0 0 0 7 15 30 140 DATE OF START AND END FREEZING START = 11 OCT. END = 28 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -2.4 -0.8 7.5 9.7 15.0 19.3 23.2 21.9 13.8 17.3 4.6 2.5 11.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.3 -7.3 1.6 1.8 5.8 7.8 11.9 12.1 3.7 6.2 -3.7 -4.9 2.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.5 5.7 13.3 17.6 24.2 30.8 34.6 31.6 24.0 28.4 12.9 9.9 19.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.8 13.0 11.7 15.8 18.4 23.0 22.7 19.5 20.3 22.2 16.6 14.8 17.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.63 2.60 4.45 4.40 5.45 6.15 6.84 6.84 4.21 4.97 3.39 2.56 4.54 MEAN OF MIXING RATIO AT 09 GMT. 4.02 4.53 5.46 5.26 5.64 5.87 6.47 6.14 4.22 5.12 4.27 3.86 5.07 MEAN OF MIXING RATIO AT 15 GMT. 3.12 3.60 4.80 4.92 5.37 5.16 4.97 5.08 3.96 4.21 3.72 2.84 4.31 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.5 -18.5 -5.0 -6.0 2.5 5.0 7.5 6.5 -1.5 1.5 -7.5 -9.0 -20.5 DAY 12 1 18 14 24 20 8 30 13 14 23 9 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 9.5 19.5 28.5 31.0 34.5 38.5 37.5 28.0 33.5 18.5 14.5 38.5 DAY 21 6 31 30 31 29 17 5 4 3 14 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 32.0 12.6 31.2 52.0 27.0 0.0 0.0 4.2 2.4 0.0 23.4 18.8 52.0 DAY 23 12 21 13 7 ** ** 28 30 ** 3 31 MONTHLY TOTAL PRECIPITATION IN MM. 168.0 62.4 123.8 148.5 44.4 0.0 0.0 10.0 2.4 0.0 61.2 37.5 658.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.8 29.3 1.9 15.0 NO. OF DAYS WITH PRECIPITATION. 12 7 8 7 2 0 0 4 1 0 4 3 48 NO. OF DAYS PRECIPITATION EQUAL 12 7 8 7 2 0 0 4 1 0 4 3 48 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 6 4 5 7 2 0 0 0 0 0 3 2 29 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 73 68 65 54 46 44 49 56 54 76 66 61 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 74 72 54 38 29 21 18 20 22 22 42 43 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 69 59 52 37 24 19 27 30 27 49 46 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 15 2 2 0 0 0 0 0 0 18 24 86 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 5 1 0 0 0 0 0 0 0 0 0 0 6 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 20 31 23 0 7 0 0 82 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 28 10 9 0 0 0 0 1 0 25 31 134 DATE OF START AND END FREEZING START = 13 SEP. END = 24 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -1.9 2.1 5.0 13.1 18.4 22.1 24.6 24.3 19.4 12.6 6.7 -3.1 11.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.9 -6.3 -2.9 4.1 8.3 9.9 14.5 13.6 7.5 0.6 -3.9 -11.8 2.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.1 10.4 13.0 22.2 28.5 34.2 34.8 35.0 31.2 24.6 17.4 5.6 21.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.0 16.7 15.9 18.1 20.2 24.3 20.3 21.4 23.7 24.0 21.3 17.4 19.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.11 2.33 3.44 4.61 6.52 6.91 7.41 7.52 5.07 3.11 2.01 1.99 4.42 MEAN OF MIXING RATIO AT 09 GMT. 3.44 4.23 4.23 5.04 6.12 6.58 8.12 7.89 5.59 3.65 3.31 3.45 5.14 MEAN OF MIXING RATIO AT 15 GMT. 2.63 3.44 3.90 4.14 4.74 5.83 6.70 6.43 4.60 3.29 2.77 2.60 4.26 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -16.5 -14.5 -5.5 -2.0 2.5 4.5 9.5 10.5 3.5 -5.5 -7.5 -25.5 -25.5 DAY 29 2 3 25 9 12 26 25 20 26 28 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.5 14.5 20.5 26.5 34.5 36.5 39.5 37.5 35.5 34.5 23.0 17.5 39.5 DAY 3 22 29 16 19 5 29 1 1 12 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 14.2 27.0 25.2 11.6 0.0 0.0 0.0 0.0 0.0 0.0 18.2 27.0 DAY 22 23 12 30 1 ** ** ** ** ** ** 9 MONTHLY TOTAL PRECIPITATION IN MM. 40.0 58.6 90.9 67.6 19.0 0.0 0.0 0.0 0.0 0.0 0.0 51.2 327.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 57.9 26.5 0.0 15.6 NO. OF DAYS WITH PRECIPITATION. 9 6 8 4 2 0 0 0 0 0 0 4 33 NO. OF DAYS PRECIPITATION EQUAL 9 6 8 4 2 0 0 0 0 0 0 4 33 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 4 4 4 1 0 0 0 0 0 0 2 16 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 67 79 61 54 46 47 51 52 52 44 68 58 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 47 48 28 27 19 22 20 20 20 25 58 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 60 54 57 33 28 22 23 23 23 26 29 62 37 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 21 8 0 0 0 0 0 0 7 19 26 110 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 5 0 0 0 0 0 0 0 0 0 0 6 11 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 16 30 31 31 18 4 0 0 130 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 28 2 0 0 0 0 0 14 28 30 160 DATE OF START AND END FREEZING START = 10 OCT. END = 25 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -6.9 -3.1 4.4 7.0 14.1 19.0 22.7 21.9 16.3 10.9 5.0 -1.1 9.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -16.5 -12.7 -3.8 -1.2 4.5 7.7 13.2 11.7 5.6 -0.2 -1.7 -8.5 -0.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.6 6.6 12.6 15.1 23.8 30.2 32.3 32.1 26.9 22.0 11.7 6.3 18.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 19.1 19.3 16.4 16.3 19.3 22.5 19.1 20.4 21.3 22.2 13.4 14.8 18.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.18 1.89 3.55 4.94 6.21 6.48 7.50 6.55 4.45 3.44 3.60 2.13 4.33 MEAN OF MIXING RATIO AT 09 GMT. 3.13 4.46 4.47 5.22 6.71 7.10 7.28 7.20 4.89 4.22 4.36 3.96 5.25 MEAN OF MIXING RATIO AT 15 GMT. 2.25 2.96 3.95 4.26 5.51 5.68 5.90 5.80 4.10 3.56 4.49 3.03 4.29 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -27.5 -25.5 -15.0 -5.5 2.5 2.5 10.5 9.5 1.2 -2.5 -4.5 -20.0 -27.5 DAY 26 3 2 24 11 3 23 19 23 6 3 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 17.5 19.5 22.5 26.5 33.5 34.5 34.5 33.5 25.8 20.5 17.5 34.5 DAY 13 24 18 29 15 16 7 9 1 2 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 3.4 30.0 16.0 34.4 3.0 0.0 0.0 0.0 0.0 0.0 18.0 13.0 34.4 DAY 31 14 15 13 6 ** ** ** ** ** 8 9 MONTHLY TOTAL PRECIPITATION IN MM. 18.6 82.6 55.2 236.8 4.0 0.0 0.0 0.0 0.0 0.0 54.0 41.5 492.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 31.7 48.9 0.0 19.4 NO. OF DAYS WITH PRECIPITATION. 7 5 10 16 2 0 0 0 0 0 5 8 53 NO. OF DAYS PRECIPITATION EQUAL 7 5 10 16 2 0 0 0 0 0 5 8 53 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 4 2 11 0 0 0 0 0 0 3 1 21 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 56 69 70 70 56 50 51 52 51 61 73 69 61 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 75 49 47 32 24 21 21 20 22 50 58 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 72 55 51 36 25 22 23 23 30 65 57 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 27 15 4 0 0 0 0 0 0 3 28 108 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 7 3 0 0 0 0 0 0 0 0 0 6 16 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 15 27 27 8 0 0 0 77 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 25 20 0 0 0 0 0 19 23 31 177 DATE OF START AND END FREEZING START = 4 OCT. END = 27 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -6.4 ***** ***** ***** ***** ***** ***** ***** 16.4 12.0 6.7 -1.9 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -13.7 -17.4 -4.4 2.6 4.5 8.8 12.3 9.9 6.3 2.2 -1.2 -7.5 0.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.4 ***** ***** ***** ***** ***** ***** ***** 26.6 21.8 14.7 3.8 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.1 ***** ***** ***** ***** ***** ***** ***** 20.3 19.6 15.9 11.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.70 1.46 3.24 5.33 5.72 6.11 6.98 6.27 4.81 3.80 3.85 2.82 4.34 MEAN OF MIXING RATIO AT 09 GMT. 3.38 3.25 4.82 5.64 5.79 6.39 6.59 5.83 4.77 3.89 4.32 4.15 4.90 MEAN OF MIXING RATIO AT 15 GMT. 2.69 2.40 3.89 5.24 5.21 5.09 5.20 4.69 4.04 3.35 4.21 3.60 4.13 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -21.5 -26.5 -10.0 -2.6 1.5 4.5 8.5 5.5 3.0 -1.5 -6.5 -19.8 -26.5 DAY 4 11 4 6 7 13 13 27 12 26 22 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 5.5 ***** ***** ***** ***** ***** ***** ***** 29.8 25.2 18.5 13.2 ****** DAY 10 ** ** ** ** ** ** ** 3 1 2 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 30.0 46.0 20.0 36.0 0.0 0.0 7.0 0.0 1.4 15.0 26.0 46.0 DAY 17 19 21 18 13 ** ** 5 ** 29 30 1 MONTHLY TOTAL PRECIPITATION IN MM. 29.8 60.0 188.0 110.0 79.0 0.0 0.0 7.0 0.0 1.4 35.0 57.4 567.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 48.9 33.3 1.2 16.5 NO. OF DAYS WITH PRECIPITATION. 8 5 11 9 4 0 0 1 0 1 7 7 53 NO. OF DAYS PRECIPITATION EQUAL 8 5 11 9 4 0 0 1 0 1 7 7 53 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 3 7 6 4 0 0 0 0 0 1 1 22 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 66 76 79 69 47 47 52 54 57 79 85 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 77 74 62 46 41 26 19 22 18 20 37 69 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 74 68 57 47 25 19 24 22 26 51 82 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 30 28 18 0 0 0 0 0 0 0 8 25 109 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 6 *** *** *** *** *** *** *** 0 0 0 5 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** *** *** *** *** *** 0 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** *** *** *** *** *** 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** *** *** *** *** *** 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 29 27 5 0 0 0 0 0 4 18 30 144 DATE OF START AND END FREEZING START = 24 OCT. END = 26 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -4.7 1.9 5.1 10.0 14.2 19.4 22.7 20.8 17.6 12.3 5.5 0.8 10.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -11.7 -4.8 -1.5 3.0 5.3 8.6 12.8 11.4 7.2 1.7 -3.9 -6.7 1.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.3 8.5 11.7 16.9 23.1 30.1 32.6 30.3 28.1 22.9 14.8 8.4 19.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.0 13.3 13.2 13.9 17.8 21.5 19.8 18.9 20.9 21.2 18.7 15.1 17.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.02 3.38 3.61 4.38 4.71 5.41 7.51 5.47 4.24 2.90 2.65 2.32 4.05 MEAN OF MIXING RATIO AT 09 GMT. 3.51 4.83 3.61 4.36 5.41 4.66 7.36 4.85 5.00 3.89 2.73 3.42 4.47 MEAN OF MIXING RATIO AT 15 GMT. 2.89 4.48 3.81 3.88 4.50 4.22 5.97 3.42 3.50 3.62 3.56 2.68 3.88 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -22.6 -15.8 -7.5 -3.5 1.5 2.5 9.5 7.4 2.5 -3.5 -12.5 -12.5 -22.6 DAY 20 1 10 11 7 6 29 24 21 28 10 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.5 15.2 16.2 22.5 25.5 34.5 36.5 32.5 31.5 26.5 19.5 14.5 36.5 DAY 9 20 1 26 27 20 13 1 1 5 12 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.0 40.0 25.0 34.0 0.0 0.0 5.5 0.0 0.0 0.0 18.0 5.0 40.0 DAY 15 22 4 8 ** ** 23 ** ** ** 24 18 MONTHLY TOTAL PRECIPITATION IN MM. 73.0 82.0 111.0 116.0 0.0 0.0 10.0 0.0 0.0 0.0 22.0 22.0 436.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 61.0 26.6 2.3 10.1 NO. OF DAYS WITH PRECIPITATION. 8 4 7 7 0 0 3 0 0 0 2 7 38 NO. OF DAYS PRECIPITATION EQUAL 8 4 7 7 0 0 3 0 0 0 2 7 38 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 4 5 6 0 0 0 0 0 0 1 0 19 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 84 69 59 50 44 50 42 45 47 62 68 58 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 59 39 34 26 15 22 16 18 19 23 45 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 71 51 39 30 18 23 14 18 28 44 49 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 30 15 8 0 0 0 0 0 0 0 14 25 92 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 8 0 0 0 0 0 0 0 0 0 0 0 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 15 27 17 7 0 0 0 66 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 26 23 7 0 0 0 0 0 11 25 31 154 DATE OF START AND END FREEZING START = 17 OCT. END = 18 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -6.5 -4.9 5.5 9.7 14.2 19.2 21.0 21.1 16.4 10.2 6.8 -4.8 9.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -14.2 -12.1 0.0 3.7 6.0 9.8 12.7 12.1 6.5 0.7 -2.8 -13.6 0.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.3 2.3 11.1 15.7 22.4 28.6 29.3 30.1 26.3 19.8 16.3 4.1 17.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.5 14.4 11.1 12.0 16.4 18.8 16.6 18.0 19.8 19.1 19.1 17.7 16.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.51 1.82 3.84 4.40 5.51 6.19 7.64 6.04 4.80 3.90 2.56 1.25 4.12 MEAN OF MIXING RATIO AT 09 GMT. 3.07 3.30 5.12 4.32 5.33 5.69 6.70 5.82 4.81 4.41 3.80 3.21 4.63 MEAN OF MIXING RATIO AT 15 GMT. 2.20 2.68 4.61 3.90 4.55 4.43 5.24 4.71 3.63 3.80 3.59 2.61 3.83 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -25.5 -25.5 -8.5 -3.5 0.5 4.5 9.5 7.5 4.5 -4.5 -8.5 -20.8 -25.5 DAY 25 4 6 12 2 9 1 31 4 28 27 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.5 9.5 17.5 21.5 27.5 33.5 32.5 32.5 28.5 24.5 22.5 13.5 33.5 DAY 1 25 21 23 28 23 2 1 10 1 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 34.0 33.0 10.0 6.0 0.0 2.0 0.0 0.0 5.0 2.0 20.0 34.0 DAY 22 27 1 12 11 ** 17 ** ** 12 22 5 MONTHLY TOTAL PRECIPITATION IN MM. 154.0 101.5 84.0 15.0 10.0 0.0 4.0 0.0 0.0 11.0 2.0 93.0 474.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 71.5 5.3 0.8 22.3 NO. OF DAYS WITH PRECIPITATION. 17 9 8 2 3 0 2 0 0 3 1 11 56 NO. OF DAYS PRECIPITATION EQUAL 17 9 8 2 3 0 2 0 0 3 1 11 56 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 8 3 3 1 0 0 0 0 0 0 0 4 19 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 66 64 67 60 61 49 52 46 51 66 60 57 58 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 72 65 53 35 28 20 23 18 19 29 29 58 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 69 63 40 33 19 22 19 19 35 40 65 41 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 25 8 0 0 0 0 0 0 1 7 31 103 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 12 9 0 0 0 0 0 0 0 0 0 6 27 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 13 15 0 0 0 0 37 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 11 6 0 0 0 0 0 13 25 31 144 DATE OF START AND END FREEZING START = 18 OCT. END = 14 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -4.9 -4.8 2.5 8.6 14.7 18.9 22.7 22.0 17.1 11.0 5.2 -1.0 9.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -11.7 -12.0 -4.8 1.9 6.6 10.4 13.7 12.9 7.7 0.1 -2.7 -7.8 1.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.0 2.3 9.7 15.4 22.8 27.3 31.7 31.1 26.4 21.9 13.2 5.9 17.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.7 14.3 14.5 13.5 16.2 16.9 18.0 18.2 18.7 21.8 15.9 13.7 16.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.70 1.50 2.95 4.67 5.72 6.60 8.12 6.94 5.00 3.22 3.52 2.28 4.35 MEAN OF MIXING RATIO AT 09 GMT. 3.49 3.52 4.37 5.09 6.65 6.84 6.32 5.57 4.84 4.94 4.56 3.79 5.00 MEAN OF MIXING RATIO AT 15 GMT. 2.73 2.57 3.34 4.24 5.33 5.49 5.06 4.53 3.84 3.72 4.14 3.27 4.02 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -28.5 -23.5 -15.5 -3.6 3.5 7.5 11.5 9.5 4.5 -3.5 -9.5 -17.5 -28.5 DAY 23 14 10 2 2 1 4 26 27 29 29 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.5 9.5 16.5 20.5 28.5 32.5 33.5 39.5 28.5 26.5 21.5 9.5 39.5 DAY 3 22 31 14 21 27 16 23 8 4 3 12 24 HOUR MAXIMUM PRECIPITATION IN MM. 32.0 48.0 5.5 5.2 16.5 0.0 12.0 0.0 0.0 0.0 21.6 30.0 48.0 DAY 20 25 2 23 11 ** 23 ** ** ** 11 2 MONTHLY TOTAL PRECIPITATION IN MM. 92.0 117.0 24.1 20.9 31.5 0.0 19.0 0.0 0.0 0.0 71.3 202.2 578.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 40.3 9.1 3.3 47.3 NO. OF DAYS WITH PRECIPITATION. 8 11 8 8 3 0 3 0 0 0 8 13 62 NO. OF DAYS PRECIPITATION EQUAL 8 11 7 8 3 0 3 0 0 0 8 13 61 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 4 0 0 2 0 1 0 0 0 4 9 24 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 67 59 67 70 58 52 55 52 52 59 73 69 61 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 64 53 44 36 25 18 17 19 28 46 60 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 61 53 46 38 25 19 17 20 28 57 70 42 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 24 12 0 0 0 0 0 0 0 9 28 100 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 11 12 0 0 0 0 0 0 0 0 0 1 24 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 30 23 0 0 0 0 56 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 28 24 10 0 0 0 0 0 18 26 31 167 DATE OF START AND END FREEZING START = 7 OCT. END = 25 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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.***** -2.4 -0.2 8.4 13.3 18.7 23.4 21.0 17.1 11.8 6.4 3.3 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** -9.2 -6.8 2.4 6.3 9.7 14.9 12.3 7.4 2.6 -1.3 -5.3 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 4.4 6.3 14.3 20.3 27.6 32.0 29.8 26.8 21.0 14.0 11.9 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 13.6 13.1 11.9 14.0 17.9 17.1 17.5 19.4 18.4 15.3 17.2 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 2.42 2.60 4.90 5.56 6.70 10.33 7.08 5.49 4.22 3.27 2.37 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 4.30 4.23 5.53 6.57 7.24 9.20 5.61 5.10 4.74 4.51 4.01 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 3.27 3.62 4.68 5.87 5.68 7.95 4.83 4.24 3.78 3.95 3.83 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -15.5 -17.5 -2.5 2.5 4.5 11.5 9.5 4.5 -2.5 -5.5 -9.5 ****** DAY ** 24 3 6 1 2 2 24 19 19 20 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 9.5 11.5 20.2 24.5 32.5 36.5 32.5 30.5 26.5 19.5 14.5 ****** DAY ** 8 20 17 18 25 14 1 4 2 6 7 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** 36.0 22.0 45.0 47.0 0.0 21.0 0.0 0.0 25.0 17.0 17.0 ****** DAY ** 11 11 5 14 ** 24 ** ** 31 3 28 MONTHLY TOTAL PRECIPITATION IN MM. ***** 231.5 132.2 137.0 160.0 0.0 33.0 0.0 0.0 73.0 43.0 72.2 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 41.2 33.7 3.7 21.3 NO. OF DAYS WITH PRECIPITATION. *** 12 13 6 5 0 2 0 0 5 3 9 *** NO. OF DAYS PRECIPITATION EQUAL *** 12 13 6 5 0 2 0 0 5 3 9 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** 9 7 5 5 0 2 0 0 4 3 3 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 78 73 73 62 54 65 56 61 57 64 65 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 76 61 49 40 28 27 18 20 27 40 43 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 72 65 52 45 27 29 19 20 25 45 56 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 27 26 0 0 0 0 0 0 0 8 29 *** 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 *** 0 2 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 5 23 13 2 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. *** 28 31 9 0 0 0 0 0 5 18 31 *** DATE OF START AND END FREEZING START = 19 OCT. END = 28 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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.-10.1 0.4 8.3 9.1 14.0 19.7 23.9 22.1 17.8 11.8 5.3 2.4 10.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -18.6 -8.7 0.5 2.8 6.3 10.7 14.6 12.9 7.5 3.8 -1.5 -2.7 2.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. -1.6 9.5 16.1 15.4 21.8 28.7 33.2 31.2 28.0 19.9 12.1 7.6 18.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 17.0 18.2 15.6 12.6 15.5 18.0 18.6 18.3 20.5 16.1 13.6 10.3 16.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 0.84 2.00 4.11 4.74 5.63 7.27 7.16 6.73 4.79 4.34 3.65 3.47 4.56 MEAN OF MIXING RATIO AT 09 GMT. 1.93 4.09 5.49 5.09 6.69 7.36 11.26 6.03 4.29 4.98 4.74 4.27 5.52 MEAN OF MIXING RATIO AT 15 GMT. 1.64 3.70 4.87 4.59 5.90 6.23 9.65 5.33 4.38 4.34 4.15 3.85 4.88 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -29.5 -16.5 -5.5 -2.5 3.5 6.5 10.5 9.0 4.5 -2.5 -5.5 -12.5 -29.5 DAY 23 3 6 17 1 4 7 30 20 29 14 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 5.5 17.5 19.5 21.5 26.5 32.5 36.5 34.5 29.5 27.5 15.5 15.5 36.5 DAY 1 25 14 14 14 26 15 15 1 1 7 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 18.0 31.0 26.0 8.0 0.0 2.0 0.0 0.0 28.0 60.0 47.0 60.0 DAY 11 7 27 7 24 ** 29 ** ** 27 12 15 MONTHLY TOTAL PRECIPITATION IN MM. 50.0 18.0 63.0 107.2 18.0 0.0 2.0 0.0 0.0 77.5 148.0 188.4 672.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 19.5 18.6 0.3 61.6 NO. OF DAYS WITH PRECIPITATION. 8 1 4 13 4 0 1 0 0 5 6 9 51 NO. OF DAYS PRECIPITATION EQUAL 8 1 4 13 4 0 1 0 0 5 6 9 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 3 5 0 0 0 0 0 3 4 7 24 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 48 68 72 67 63 60 47 52 52 62 75 80 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 51 44 42 36 26 29 18 16 33 47 57 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 58 49 49 41 27 31 19 23 40 54 63 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 24 3 0 0 0 0 0 0 0 6 9 73 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 20 2 0 0 0 0 0 0 0 0 0 1 23 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 12 30 21 0 0 0 0 63 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 12 4 0 0 0 0 0 1 20 22 118 DATE OF START AND END FREEZING START = 29 OCT. END = 19 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. 0.1 2.4 4.1 10.2 14.2 19.4 21.4 21.9 18.0 12.4 3.6 3.5 10.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.0 -3.6 -2.7 2.8 6.3 10.3 12.5 12.1 7.6 2.0 -3.4 -2.9 2.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.1 8.4 10.9 17.7 22.1 28.6 30.3 31.8 28.3 22.8 10.6 9.8 18.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.1 12.0 13.6 14.9 15.8 18.3 17.8 19.7 20.7 20.8 14.0 12.7 16.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.66 3.07 3.23 4.50 4.93 6.77 6.60 5.93 5.06 4.27 3.35 3.60 4.50 MEAN OF MIXING RATIO AT 09 GMT. 3.51 4.00 4.29 4.72 5.37 6.33 6.13 7.26 6.33 5.39 4.42 4.54 5.19 MEAN OF MIXING RATIO AT 15 GMT. 3.18 3.67 3.82 4.45 4.57 4.61 4.78 6.29 5.07 4.60 4.28 4.23 4.46 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -10.5 -8.5 -3.5 1.5 3.5 7.5 9.5 4.5 -4.5 -8.5 -8.0 -12.5 DAY 17 1 16 1 3 23 10 14 25 30 24 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.5 13.5 16.5 21.5 26.5 32.5 33.5 33.5 31.5 26.5 15.5 13.5 33.5 DAY 8 19 29 9 27 12 4 25 2 1 7 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 40.0 20.0 47.5 9.2 2.5 0.0 0.0 0.0 0.0 0.0 29.0 44.0 47.5 DAY 10 23 13 25 2 ** ** ** ** ** 10 3 MONTHLY TOTAL PRECIPITATION IN MM. 155.0 83.2 109.1 17.6 2.5 0.0 0.0 0.0 0.0 0.0 71.5 147.7 586.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 59.2 3.4 0.0 37.4 NO. OF DAYS WITH PRECIPITATION. 6 8 7 4 1 0 0 0 0 0 8 5 39 NO. OF DAYS PRECIPITATION EQUAL 6 8 7 4 1 0 0 0 0 0 8 5 39 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 4 3 0 0 0 0 0 0 0 3 4 19 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 75 75 67 57 54 48 46 55 63 82 84 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 49 52 47 33 28 22 20 21 23 27 47 51 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 58 52 39 31 20 18 24 23 33 62 61 40 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 12 10 0 0 0 0 0 0 1 12 13 69 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 4 1 0 0 0 0 0 0 0 0 0 0 5 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 11 18 26 4 0 0 0 59 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 23 25 6 0 0 0 0 0 8 26 23 142 DATE OF START AND END FREEZING START = 15 OCT. END = 27 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -2.3 1.4 4.1 10.2 12.9 18.6 22.3 20.5 16.9 12.3 6.4 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -8.4 -5.3 -2.9 2.9 5.6 9.7 12.5 11.4 6.6 2.8 -3.0 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.7 8.1 10.5 17.3 20.0 27.5 32.0 29.7 27.2 21.8 15.8 3.5 18.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.1 13.4 13.4 14.4 14.4 17.8 19.5 18.3 20.6 19.0 18.8 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.26 2.78 3.40 4.72 6.04 6.75 7.61 6.64 5.31 4.82 3.08 2.38 4.65 MEAN OF MIXING RATIO AT 09 GMT. 3.21 3.68 4.27 4.50 5.76 6.92 7.13 6.71 6.85 6.28 5.14 3.61 5.34 MEAN OF MIXING RATIO AT 15 GMT. 2.92 3.32 4.00 4.07 5.08 6.41 6.43 5.65 5.60 5.25 4.35 2.97 4.67 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.5 -12.5 -12.5 -4.5 2.5 5.5 9.5 8.5 3.5 -3.0 -8.5 ***** ****** DAY 28 1 5 29 1 1 3 30 25 31 27 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.5 14.5 15.5 29.5 27.5 32.5 34.5 32.5 31.5 25.6 19.5 10.5 34.5 DAY 1 20 19 18 27 28 16 1 12 10 1 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 55.0 27.0 76.0 12.0 43.0 34.4 0.0 2.0 0.0 8.0 14.0 18.0 76.0 DAY 23 9 27 28 8 3 ** 28 ** 25 30 15 MONTHLY TOTAL PRECIPITATION IN MM. 127.2 73.5 163.5 14.0 146.2 40.4 0.0 2.0 0.0 13.0 18.6 73.4 671.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 54.2 29.9 0.3 15.6 NO. OF DAYS WITH PRECIPITATION. 5 5 6 2 7 2 0 1 0 2 2 10 42 NO. OF DAYS PRECIPITATION EQUAL 5 5 6 2 7 2 0 1 0 2 2 10 42 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 4 6 1 5 1 0 0 0 0 1 3 26 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 81 79 65 65 56 52 50 56 66 73 82 67 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 46 47 31 37 27 21 23 27 33 39 61 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 65 55 57 37 40 31 23 23 28 39 44 67 42 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 28 17 16 1 0 0 0 0 0 0 10 *** *** 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 10 2 2 0 0 0 0 0 0 0 0 7 21 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 28 15 2 0 0 0 50 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 19 6 0 0 0 0 0 4 24 *** *** DATE OF START AND END FREEZING START = 28 OCT. END = 30 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -4.7 -2.9 3.4 11.4 15.0 20.3 21.1 21.0 16.7 12.0 6.5 0.1 10.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.8 -10.1 -1.8 4.7 8.5 10.9 11.4 10.7 6.5 2.2 -1.9 -7.4 1.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.3 4.2 8.6 18.1 21.6 29.7 30.8 31.3 27.0 21.7 14.9 7.7 18.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.1 14.3 10.4 13.4 13.1 18.8 19.4 20.6 20.5 19.5 16.8 15.1 16.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.17 2.08 3.86 5.42 5.52 6.82 6.70 7.26 5.31 4.24 3.61 2.62 4.63 MEAN OF MIXING RATIO AT 09 GMT. 3.03 4.39 4.46 5.09 5.55 6.25 5.80 6.62 6.05 6.12 4.93 4.19 5.21 MEAN OF MIXING RATIO AT 15 GMT. 2.65 3.36 4.10 4.90 5.23 5.44 5.62 6.24 5.65 5.72 4.67 3.65 4.77 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.5 -21.5 -11.5 -2.5 5.5 8.0 7.5 2.5 1.5 -3.5 -5.5 -12.5 -21.5 DAY 1 2 8 17 13 13 1 25 25 31 26 14 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 9.5 15.5 22.5 25.5 32.5 33.5 32.5 31.5 26.5 18.5 12.5 33.5 DAY 28 13 26 21 27 22 30 2 2 1 4 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 35.5 59.0 23.7 25.0 12.0 0.0 0.0 0.0 0.0 2.5 9.0 14.0 59.0 DAY 23 11 14 29 1 ** ** ** ** 25 24 18 MONTHLY TOTAL PRECIPITATION IN MM. 149.4 246.4 147.9 85.2 24.0 0.0 0.0 0.0 0.0 5.0 25.8 55.7 739.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 73.5 14.8 0.0 11.7 NO. OF DAYS WITH PRECIPITATION. 9 10 14 6 3 0 0 0 0 2 4 6 54 NO. OF DAYS PRECIPITATION EQUAL 9 10 14 6 3 0 0 0 0 2 4 6 54 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 10 8 3 1 0 0 0 0 0 0 3 30 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 69 78 64 56 50 48 57 57 61 75 82 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 72 56 35 30 21 18 20 23 32 40 55 39 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 65 71 60 43 35 23 22 24 28 36 48 64 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 29 13 0 0 0 0 0 0 0 10 29 112 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 13 6 0 0 0 0 0 0 0 0 0 0 19 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 15 19 26 8 0 0 0 68 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 29 17 2 0 0 0 0 0 9 21 31 140 DATE OF START AND END FREEZING START = 16 OCT. END = 20 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -2.1 0.4 5.8 9.4 13.8 17.8 21.2 21.4 15.9 10.3 5.7 2.5 10.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.7 -5.9 -0.2 3.8 5.7 8.7 11.7 11.3 5.3 0.4 -2.1 -5.2 2.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.9 6.5 12.1 15.5 21.8 26.8 30.7 31.4 26.5 20.2 13.4 10.2 18.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.6 12.4 12.3 11.7 16.1 18.1 19.0 20.1 21.2 19.8 15.5 15.4 16.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.48 3.09 4.12 4.64 5.48 5.65 6.62 5.99 4.66 4.17 3.64 2.67 4.43 MEAN OF MIXING RATIO AT 09 GMT. 3.50 3.73 4.24 4.96 5.54 5.84 7.26 6.28 5.25 5.31 4.22 3.67 4.98 MEAN OF MIXING RATIO AT 15 GMT. 3.16 3.39 3.91 4.59 4.90 5.63 6.12 5.64 5.38 4.60 3.80 3.25 4.53 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -13.5 -9.5 -6.5 1.5 3.5 8.5 8.5 -2.0 -3.5 -7.5 -8.5 -14.5 DAY 7 2 5 2 3 6 31 31 30 31 24 3 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.5 10.5 16.0 23.5 26.5 30.5 35.5 34.5 31.5 24.5 18.5 12.5 35.5 DAY 24 8 25 22 27 24 14 21 2 3 2 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 33.5 28.0 44.0 8.5 0.0 0.0 0.0 0.0 0.0 51.5 4.5 51.5 DAY 21 11 28 17 1 ** ** ** ** ** 22 31 MONTHLY TOTAL PRECIPITATION IN MM. 91.7 139.0 96.0 130.8 14.5 0.0 0.0 0.0 0.0 0.0 91.2 12.5 575.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 56.7 25.2 0.0 18.0 NO. OF DAYS WITH PRECIPITATION. 9 9 7 12 3 0 0 0 0 0 5 3 48 NO. OF DAYS PRECIPITATION EQUAL 9 9 7 12 3 0 0 0 0 0 5 3 48 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 5 4 5 0 0 0 0 0 0 2 0 21 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 82 76 65 59 48 47 46 57 70 73 72 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 54 43 41 31 22 22 19 21 30 39 40 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 57 48 45 34 28 22 20 27 38 44 45 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 14 5 1 0 0 0 0 0 0 9 22 75 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 5 1 0 0 0 0 0 0 0 0 0 0 6 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 18 25 2 0 0 0 47 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 16 11 1 0 0 0 0 4 16 22 30 126 DATE OF START AND END FREEZING START = 24 SEP. END = 2 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -2.5 -3.2 1.6 12.4 16.0 21.3 22.2 22.9 17.7 10.4 2.9 -3.5 9.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.4 -9.8 -4.2 5.5 8.5 11.6 12.6 12.6 8.2 3.2 -3.6 -10.3 2.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.5 3.4 7.4 19.3 23.5 30.9 31.9 33.1 27.2 17.6 9.5 3.3 17.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.9 13.2 11.6 13.8 15.0 19.3 19.3 20.5 19.0 14.4 13.1 13.6 15.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.35 2.17 3.21 4.80 5.96 6.18 5.87 6.72 4.88 5.49 3.70 2.24 4.47 MEAN OF MIXING RATIO AT 09 GMT. 2.74 3.10 3.57 5.16 6.16 6.51 6.36 7.25 5.40 5.88 4.34 3.57 5.00 MEAN OF MIXING RATIO AT 15 GMT. 2.65 2.62 3.36 4.73 5.75 5.93 6.09 6.25 5.21 5.32 4.35 3.55 4.65 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -17.5 -9.5 -2.5 6.5 8.5 10.5 7.5 2.5 -3.5 -10.5 -15.5 -17.5 DAY 15 19 5 1 9 3 21 30 27 30 15 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.5 7.5 11.5 25.5 28.5 34.5 34.5 35.5 29.5 24.5 15.5 8.5 35.5 DAY 5 28 24 29 19 12 28 3 1 2 22 14 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.0 21.0 23.0 8.0 4.0 0.0 0.0 0.0 0.0 14.0 41.4 18.0 41.4 DAY 17 14 15 8 24 ** ** ** ** 14 10 30 MONTHLY TOTAL PRECIPITATION IN MM. 81.2 84.2 131.5 10.0 9.0 0.0 0.0 0.0 0.0 65.5 162.0 38.0 581.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 51.1 3.3 0.0 45.7 NO. OF DAYS WITH PRECIPITATION. 7 9 11 2 3 0 0 0 0 13 9 6 60 NO. OF DAYS PRECIPITATION EQUAL 7 9 11 2 3 0 0 0 0 13 9 6 60 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 3 6 0 0 0 0 0 0 2 6 1 22 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 79 75 58 57 45 42 45 50 75 83 85 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 56 49 33 30 21 19 20 21 43 50 64 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 58 57 55 37 33 23 22 22 24 44 61 76 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 30 28 12 0 0 0 0 0 0 0 16 28 114 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 7 3 0 0 0 0 0 0 0 0 0 6 16 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 20 24 28 0 0 0 0 72 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 30 2 0 0 0 0 0 5 26 31 153 DATE OF START AND END FREEZING START = 21 OCT. END = 2 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -5.9 -3.7 0.4 8.5 15.7 19.9 22.8 22.1 18.3 10.7 5.8 -0.2 9.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -11.1 -10.1 -5.6 2.1 8.6 10.1 13.1 12.0 7.6 0.3 -3.4 -7.8 1.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. -0.6 2.6 6.5 14.9 22.7 29.6 32.5 32.2 28.9 21.1 15.1 7.3 17.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.5 12.7 12.1 12.8 14.1 19.5 19.4 20.2 21.3 20.8 18.5 15.0 16.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.10 2.04 2.91 4.68 6.33 5.90 6.73 6.27 5.41 3.47 2.86 2.39 4.26 MEAN OF MIXING RATIO AT 09 GMT. 2.84 3.47 3.90 4.96 6.95 6.64 7.12 6.33 5.59 4.83 3.93 3.67 5.02 MEAN OF MIXING RATIO AT 15 GMT. 2.68 3.10 3.59 4.66 6.30 6.34 6.49 5.74 5.21 4.27 3.18 3.36 4.58 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.5 -19.0 -9.0 -3.5 3.0 7.0 11.0 5.0 4.0 -3.5 -4.5 -16.5 -19.5 DAY 28 2 7 2 3 1 8 29 26 22 10 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.0 6.0 14.0 20.0 26.0 33.0 35.0 35.0 33.0 26.0 20.0 17.0 35.0 DAY 3 6 28 16 21 18 25 12 1 1 3 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 31.0 23.0 18.0 25.0 23.2 0.0 0.0 0.0 0.0 0.0 2.2 12.5 31.0 DAY 1 21 3 1 2 ** ** ** ** ** 13 27 MONTHLY TOTAL PRECIPITATION IN MM. 159.5 63.4 115.5 57.7 35.2 0.0 0.0 0.0 0.0 0.0 3.7 35.8 470.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 71.9 19.7 0.0 8.4 NO. OF DAYS WITH PRECIPITATION. 11 9 11 8 2 0 0 0 0 0 2 5 48 NO. OF DAYS PRECIPITATION EQUAL 11 9 11 8 2 0 0 0 0 0 2 5 48 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 8 2 6 2 2 0 0 0 0 0 0 1 21 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 83 83 74 59 47 46 47 55 63 71 78 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 65 57 42 35 22 20 18 18 26 30 52 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 71 62 49 39 26 22 21 22 33 35 61 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 27 23 0 0 0 0 0 0 0 11 26 109 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 18 8 1 0 0 0 0 0 0 0 0 7 34 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 16 30 28 11 0 0 0 85 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 23 28 31 8 0 0 0 0 0 16 29 30 165 DATE OF START AND END FREEZING START = 14 OCT. END = 17 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -3.3 -0.5 ***** 10.4 12.1 19.4 21.5 22.5 17.5 10.1 6.0 -0.6 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -11.3 -8.7 ***** 3.2 5.0 10.4 12.3 12.3 6.2 -0.3 -0.7 -7.6 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.8 7.7 11.1 17.6 19.2 28.5 30.8 32.6 28.8 20.5 12.8 6.1 18.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.1 16.4 ***** 14.4 14.2 18.1 18.5 20.3 22.6 20.8 13.5 13.7 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.96 2.39 4.34 4.32 5.13 6.38 7.03 6.36 4.91 3.56 4.22 2.03 4.39 MEAN OF MIXING RATIO AT 09 GMT. 3.58 3.48 4.99 4.26 5.16 6.78 6.04 5.65 4.89 4.36 4.58 2.97 4.73 MEAN OF MIXING RATIO AT 15 GMT. 3.18 3.56 4.49 4.06 4.65 6.10 5.52 5.04 4.38 4.02 4.45 2.68 4.35 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.5 -17.5 ***** -1.5 2.5 5.5 9.5 9.5 -1.5 -4.5 -3.5 -17.0 ****** DAY 21 2 ** 1 3 2 9 28 30 20 6 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.5 14.5 22.5 22.5 25.5 32.5 33.5 35.5 32.5 24.5 19.5 12.5 35.5 DAY 5 13 10 22 27 14 13 4 1 1 3 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 28.0 16.0 36.0 18.6 19.8 0.0 0.0 0.0 0.0 3.2 13.0 13.0 36.0 DAY 17 24 12 17 9 ** ** ** ** 8 18 27 MONTHLY TOTAL PRECIPITATION IN MM. 86.3 51.0 216.8 36.0 59.2 0.0 0.0 0.0 0.0 7.9 48.0 59.5 564.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 62.7 16.9 0.0 20.4 NO. OF DAYS WITH PRECIPITATION. 9 4 13 5 5 0 0 0 0 3 7 8 54 NO. OF DAYS PRECIPITATION EQUAL 9 4 12 5 5 0 0 0 0 3 7 8 53 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 3 8 1 3 0 0 0 0 0 2 3 22 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 79 69 62 64 52 50 47 56 65 77 62 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 51 56 30 34 25 19 16 18 27 47 47 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 63 63 38 39 28 22 18 22 36 60 58 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 27 *** 0 0 0 0 0 0 6 0 24 *** 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 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 0 10 23 30 10 0 0 0 73 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 29 *** 4 0 0 0 0 2 14 19 30 *** DATE OF START AND END FREEZING START = 29 SEP. END = 6 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -0.7 0.1 4.7 9.4 14.1 20.1 22.8 20.7 17.5 11.5 6.3 0.0 10.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.1 -7.1 -2.4 2.2 5.7 10.2 13.0 11.1 6.2 0.2 -2.2 -6.8 1.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.0 7.4 11.9 16.5 22.4 30.0 32.6 30.3 28.8 22.5 15.3 6.8 19.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.1 14.5 14.3 14.3 16.7 19.8 19.6 19.2 22.6 22.3 17.5 13.6 17.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.31 2.49 3.47 4.56 4.56 6.06 6.82 6.14 4.49 3.06 3.71 2.76 4.20 MEAN OF MIXING RATIO AT 09 GMT. 4.24 3.30 4.24 4.79 5.13 5.52 5.96 6.46 5.56 3.92 4.89 3.86 4.82 MEAN OF MIXING RATIO AT 15 GMT. 3.84 3.02 4.03 4.38 4.65 5.02 5.47 5.78 4.83 3.51 4.34 3.35 4.35 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.5 -11.5 -13.5 -2.5 2.5 7.5 7.5 8.5 2.5 -3.5 -4.5 -13.5 -17.5 DAY 1 23 4 9 7 2 29 13 27 23 30 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 14.5 17.5 21.5 28.5 34.5 34.5 34.5 31.5 29.5 21.5 10.5 34.5 DAY 28 15 19 20 30 28 20 2 4 2 2 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 21.2 24.5 24.0 10.0 2.5 0.0 0.0 0.0 0.0 0.0 12.2 38.2 38.2 DAY 16 1 24 3 2 ** ** ** ** ** 13 19 MONTHLY TOTAL PRECIPITATION IN MM. 77.5 57.5 63.0 16.0 4.0 0.0 0.0 0.0 0.0 0.0 14.2 135.2 367.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.9 5.4 0.0 40.7 NO. OF DAYS WITH PRECIPITATION. 7 8 7 4 2 0 0 0 0 0 2 9 39 NO. OF DAYS PRECIPITATION EQUAL 7 8 7 4 2 0 0 0 0 0 2 9 39 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 1 3 1 0 0 0 0 0 0 1 5 15 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 62 73 70 67 54 49 48 52 54 55 75 81 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 51 45 38 26 18 17 22 20 20 42 57 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 60 54 43 30 21 19 24 24 29 50 68 41 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 26 12 0 0 0 0 0 0 0 1 21 80 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 3 1 0 0 0 0 0 0 0 0 0 0 4 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 12 30 17 7 0 0 0 66 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 27 19 7 0 0 0 0 0 12 18 30 139 DATE OF START AND END FREEZING START = 13 OCT. END = 30 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -0.4 -1.0 3.5 9.8 13.6 18.3 21.4 19.9 15.4 12.3 4.3 -3.1 9.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.8 -8.2 -2.9 3.7 6.7 8.7 12.5 10.5 4.9 2.1 -2.2 -9.6 1.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.0 6.2 10.0 15.8 20.4 27.9 30.2 29.3 26.0 22.6 10.9 3.5 17.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.8 14.4 12.9 12.1 13.7 19.2 17.7 18.8 21.1 20.5 13.1 13.1 16.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.52 2.57 3.34 5.51 6.19 6.55 7.71 6.66 4.65 4.08 3.86 2.35 4.67 MEAN OF MIXING RATIO AT 09 GMT. 3.73 3.74 4.38 6.40 6.45 6.73 7.24 7.60 5.80 5.59 5.01 3.61 5.52 MEAN OF MIXING RATIO AT 15 GMT. 3.08 3.05 3.75 6.01 5.64 6.01 6.53 6.78 5.05 4.58 4.13 3.05 4.81 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -14.5 -5.5 -0.5 1.5 5.5 9.5 7.0 2.0 -3.5 -8.5 -16.5 -16.5 DAY 21 17 1 2 7 4 26 30 11 26 25 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 13.5 15.5 19.5 25.5 34.5 32.5 31.5 28.5 26.5 18.5 9.5 34.5 DAY 10 28 5 18 20 29 1 4 27 4 1 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.0 12.0 32.0 38.0 58.0 0.0 0.0 0.0 0.0 0.0 52.0 41.0 58.0 DAY 27 15 8 3 4 ** ** ** ** ** 30 20 MONTHLY TOTAL PRECIPITATION IN MM. 12.0 53.0 151.0 148.4 103.2 0.0 0.0 0.0 0.0 0.0 197.9 121.4 786.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.4 32.0 0.0 40.6 NO. OF DAYS WITH PRECIPITATION. 4 7 10 15 4 0 0 0 0 0 13 9 62 NO. OF DAYS PRECIPITATION EQUAL 4 7 10 15 4 0 0 0 0 0 13 9 62 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 4 7 6 3 0 0 0 0 0 7 6 33 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 80 76 76 66 58 55 59 60 64 78 80 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 58 53 52 38 25 23 26 24 28 57 63 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 63 58 62 42 28 25 28 27 33 62 70 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 25 4 0 0 0 0 0 0 0 10 30 96 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 1 3 0 0 0 0 0 0 0 0 0 7 11 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 15 12 0 0 0 0 35 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 30 1 0 0 0 0 0 6 19 31 146 DATE OF START AND END FREEZING START = 26 OCT. END = 2 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -1.9 -0.4 2.4 9.9 16.1 19.4 20.9 20.7 17.5 11.1 7.0 2.4 10.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.3 -8.3 -3.8 2.4 7.3 10.0 11.5 11.2 6.9 3.2 -2.1 -4.1 2.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.4 7.5 8.6 17.4 25.0 28.9 30.4 30.1 28.1 19.0 16.2 8.8 18.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.7 15.8 12.4 15.0 17.7 18.9 18.9 18.9 21.2 15.8 18.3 12.9 16.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.13 2.47 3.54 4.29 5.90 5.52 5.98 5.54 4.92 4.86 3.45 3.29 4.33 MEAN OF MIXING RATIO AT 09 GMT. 3.70 3.89 4.31 4.77 6.12 6.60 7.71 6.88 6.76 5.99 5.09 4.13 5.50 MEAN OF MIXING RATIO AT 15 GMT. 2.83 3.18 3.81 4.39 5.42 5.69 6.92 6.36 5.23 4.86 4.14 3.52 4.70 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -17.5 -10.5 -4.5 4.5 6.5 8.5 8.5 2.5 -2.5 -9.5 -12.5 -17.5 DAY 5 13 13 8 9 1 5 28 30 13 30 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.0 14.0 14.5 23.5 27.5 31.5 33.5 31.5 32.5 29.5 19.5 14.5 33.5 DAY 31 3 7 30 5 9 11 14 8 4 14 12 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 20.0 32.0 35.0 0.0 0.0 3.0 5.0 0.0 12.0 8.0 24.0 35.0 DAY 7 10 19 5 ** ** 28 1 ** 26 3 29 MONTHLY TOTAL PRECIPITATION IN MM. 47.0 47.0 184.0 76.0 0.0 0.0 8.0 10.4 0.0 45.0 14.0 88.6 520.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.5 14.6 3.5 28.4 NO. OF DAYS WITH PRECIPITATION. 4 5 13 5 0 0 3 3 0 6 3 8 50 NO. OF DAYS PRECIPITATION EQUAL 4 5 13 5 0 0 3 3 0 6 3 8 50 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 9 2 0 0 0 0 0 1 0 3 20 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 77 77 64 59 48 48 47 56 66 71 74 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 52 57 34 26 24 25 23 24 41 39 52 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 62 57 60 41 31 25 29 27 26 44 45 56 42 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 28 11 2 0 0 0 0 0 0 9 16 97 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 3 2 0 0 0 0 0 0 0 0 0 5 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 10 21 22 10 0 0 0 63 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 30 11 0 0 0 0 0 6 22 27 155 DATE OF START AND END FREEZING START = 13 OCT. END = 12 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -0.7 -2.8 4.7 10.1 15.2 19.2 22.7 21.1 17.9 13.1 5.6 1.9 10.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.9 -10.5 -2.6 2.5 6.0 9.8 12.6 10.2 5.7 1.8 -3.3 -5.3 1.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.4 4.9 11.9 17.7 24.4 28.6 32.8 31.9 30.1 24.5 14.6 9.0 19.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.3 15.4 14.5 15.2 18.4 18.8 20.2 21.7 24.4 22.7 17.9 14.3 18.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.52 2.09 3.47 4.28 5.00 5.58 7.15 6.39 4.52 3.91 3.33 3.14 4.28 MEAN OF MIXING RATIO AT 09 GMT. 3.87 3.77 4.36 5.55 5.98 6.05 7.61 6.65 5.84 5.35 4.54 4.12 5.31 MEAN OF MIXING RATIO AT 15 GMT. 3.22 3.37 3.82 4.90 4.83 5.45 6.57 5.95 4.91 4.18 3.68 3.40 4.52 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -17.5 -9.5 -4.5 2.5 7.5 8.5 7.5 3.4 -1.5 -9.8 -17.5 -17.5 DAY 21 6 14 3 6 6 28 8 1 10 26 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.5 10.5 18.2 22.5 29.5 31.5 37.5 35.5 34.5 27.5 21.5 15.2 37.5 DAY 3 29 31 20 27 12 23 5 11 7 3 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 26.0 34.0 27.0 0.0 0.0 0.0 0.0 0.0 0.0 29.0 33.0 34.0 DAY 16 3 4 26 ** ** ** ** ** ** 14 17 MONTHLY TOTAL PRECIPITATION IN MM. 60.8 99.0 134.0 67.0 0.0 0.0 0.0 0.0 0.0 0.0 70.0 122.0 552.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.1 12.1 0.0 34.7 NO. OF DAYS WITH PRECIPITATION. 7 7 8 5 0 0 0 0 0 0 6 5 38 NO. OF DAYS PRECIPITATION EQUAL 7 7 8 5 0 0 0 0 0 0 6 5 38 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 4 7 3 0 0 0 0 0 0 2 5 24 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 77 68 61 53 48 49 52 53 60 75 80 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 61 47 39 27 22 21 20 19 24 41 52 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 67 50 44 31 24 24 23 24 29 45 55 40 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 28 12 2 0 0 0 0 0 0 13 19 100 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 2 6 0 0 0 0 0 0 0 0 0 2 10 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 24 27 15 0 0 0 73 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 29 22 9 0 0 0 0 0 9 26 30 155 DATE OF START AND END FREEZING START = 9 OCT. END = 10 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -7.3 -5.9 3.2 10.2 14.2 19.5 22.1 21.8 17.8 11.2 ***** 1.5 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -15.3 -14.7 -3.9 2.3 5.3 9.1 12.7 11.8 6.9 0.1 ***** -5.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.7 2.7 10.3 18.0 23.1 29.8 31.5 31.9 28.7 22.2 ***** 8.2 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.0 17.4 14.2 15.7 17.8 20.7 18.8 20.1 21.8 22.1 ***** 13.4 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.71 1.70 3.04 4.10 5.50 5.83 6.70 6.20 4.84 3.62 ***** 2.94 ***** MEAN OF MIXING RATIO AT 09 GMT. 2.63 3.27 3.97 4.95 5.88 5.90 6.70 6.82 6.31 5.42 ***** 3.95 ***** MEAN OF MIXING RATIO AT 15 GMT. 2.58 2.66 3.67 4.49 5.25 5.61 5.96 5.74 5.34 4.43 ***** 3.67 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -24.5 -25.5 -10.5 -2.5 1.5 5.5 9.5 9.5 2.2 -3.0 ***** -9.5 ****** DAY 31 7 31 2 3 13 9 10 30 10 ** 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.5 13.5 14.5 22.5 31.5 34.5 35.5 34.0 32.5 26.5 ***** 11.5 ****** DAY 22 28 3 12 26 30 9 27 1 12 ** 26 24 HOUR MAXIMUM PRECIPITATION IN MM. 17.0 31.0 19.0 17.0 12.0 0.0 0.0 0.0 0.0 0.0 ***** 94.0 ****** DAY 3 21 24 25 8 ** ** ** ** ** ** 4 MONTHLY TOTAL PRECIPITATION IN MM. 70.0 108.0 87.0 27.0 14.0 0.0 0.0 0.0 0.0 0.0 ***** 268.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 46.2 7.1 0.0 46.7 NO. OF DAYS WITH PRECIPITATION. 7 10 8 5 2 0 0 0 0 0 *** 8 *** NO. OF DAYS PRECIPITATION EQUAL 7 10 8 5 2 0 0 0 0 0 *** 8 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 3 4 1 1 0 0 0 0 0 *** 5 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 76 72 61 59 49 47 48 57 62 *** 76 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 57 62 46 36 31 19 20 20 22 27 *** 49 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 62 51 40 36 24 22 22 27 33 *** 66 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 28 10 0 0 0 0 0 0 0 *** 19 *** 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 16 12 0 0 0 0 0 0 0 0 *** 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 14 21 29 10 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. 31 28 30 7 0 0 0 0 0 15 *** 29 *** DATE OF START AND END FREEZING START = 3 OCT. END = 12 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -2.4 -1.2 4.8 9.0 15.5 21.5 ***** ***** ***** ***** ***** 1.6 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -9.0 -8.9 -2.4 0.8 6.1 11.6 ***** ***** ***** ***** ***** -7.0 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.3 6.5 12.0 17.2 24.9 31.4 ***** ***** ***** ***** 16.1 10.3 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.3 15.4 14.4 16.4 18.8 19.8 ***** ***** ***** ***** ***** 17.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.40 2.42 3.39 4.03 5.26 6.68 ***** ***** ***** ***** 2.89 2.83 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.67 3.99 4.17 4.83 6.04 8.07 ***** ***** ***** ***** 4.00 3.69 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.04 3.37 4.27 4.63 5.67 7.12 ***** ***** ***** ***** 3.87 3.48 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.5 -18.5 -11.5 -3.5 1.5 5.4 ***** ***** ***** ***** ***** -19.5 ****** DAY 13 1 1 1 14 2 ** ** ** ** ** 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.5 10.5 17.5 22.5 29.5 34.5 ***** ***** ***** ***** 18.5 17.2 ****** DAY 1 19 7 27 21 28 ** ** ** ** 16 16 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 26.0 16.0 19.0 2.0 0.0 ***** ***** ***** ***** 8.0 18.0 ****** DAY 5 11 15 3 12 ** ** ** ** ** 28 25 MONTHLY TOTAL PRECIPITATION IN MM. 87.0 90.0 46.0 22.0 2.0 0.0 ***** ***** ***** ***** 8.0 52.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 72.6 7.8 ***** 19.5 NO. OF DAYS WITH PRECIPITATION. 9 8 5 2 1 0 *** *** *** *** 1 5 *** NO. OF DAYS PRECIPITATION EQUAL 9 8 5 2 1 0 *** *** *** *** 1 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 5 2 1 0 0 *** *** *** *** 0 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 78 68 65 55 51 *** *** *** *** 71 75 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 59 44 36 27 24 *** *** *** *** 33 45 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 72 60 45 33 25 *** *** *** *** 49 60 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 23 11 0 0 0 *** *** *** *** *** 26 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** *** *** *** *** 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 0 0 0 0 0 *** *** *** *** 0 1 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 26 *** *** *** *** 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. 31 28 23 16 0 0 *** *** *** *** *** 30 *** DATE OF START AND END FREEZING START = 1 DEC. END = 23 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -1.4 0.5 5.0 10.4 13.5 18.4 23.3 23.2 19.0 12.3 6.8 0.6 11.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.1 -6.0 -1.4 2.5 4.7 7.7 12.0 11.3 7.4 3.5 -2.9 -4.4 2.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.2 7.0 11.5 18.3 22.4 29.0 34.7 35.2 30.5 21.1 16.5 5.7 19.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.3 13.0 12.9 15.8 17.7 21.3 22.7 23.9 23.1 17.6 19.4 10.1 17.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.91 3.18 4.03 4.90 5.04 6.03 6.32 5.95 4.73 5.30 3.45 3.49 4.61 MEAN OF MIXING RATIO AT 09 GMT. 4.32 4.12 4.93 5.26 5.42 6.46 7.10 6.64 5.22 5.61 4.27 4.58 5.33 MEAN OF MIXING RATIO AT 15 GMT. 3.76 3.92 4.77 5.06 4.90 6.09 6.66 6.52 4.96 5.92 4.27 4.18 5.08 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -12.0 -5.5 -2.5 -0.5 3.5 8.5 8.5 3.2 -2.2 -7.5 -12.5 -14.5 DAY 29 14 4 14 5 1 1 27 28 31 27 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.2 11.5 20.5 24.5 27.2 32.5 37.2 39.2 36.2 25.0 22.2 10.5 39.2 DAY 20 25 22 27 31 30 12 9 10 8 2 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 32.0 22.0 40.0 6.0 0.0 6.0 0.0 0.0 0.0 17.0 0.0 54.0 54.0 DAY 19 3 23 4 ** 25 ** ** ** 4 ** 14 MONTHLY TOTAL PRECIPITATION IN MM. 114.0 95.0 126.0 12.0 0.0 6.0 0.0 0.0 0.0 57.0 0.0 255.0 665.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.4 2.7 0.0 46.9 NO. OF DAYS WITH PRECIPITATION. 9 8 8 3 0 1 0 0 0 7 0 15 51 NO. OF DAYS PRECIPITATION EQUAL 9 8 8 3 0 1 0 0 0 7 0 15 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 5 3 0 0 0 0 0 0 2 0 7 21 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 83 78 72 60 50 48 49 52 78 80 85 68 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 59 50 36 27 22 18 16 18 32 32 69 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 73 64 45 34 30 24 24 25 53 51 83 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 21 8 0 0 0 0 0 0 0 14 14 80 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 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 0 0 10 31 31 18 0 0 0 90 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 26 22 8 1 0 0 0 0 7 26 24 144 DATE OF START AND END FREEZING START = 24 OCT. END = 5 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -6.0 -2.7 0.8 8.5 13.1 18.3 22.7 21.3 16.0 11.6 6.9 0.9 9.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -12.3 -8.7 -5.5 2.4 6.5 9.1 14.1 13.2 7.1 2.1 0.5 -3.7 2.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.2 3.3 7.0 14.5 19.6 27.4 31.3 29.5 24.9 21.0 13.4 5.6 16.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.5 12.0 12.5 12.1 13.1 18.3 17.2 16.3 17.8 18.9 12.9 9.3 14.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.96 2.39 2.89 4.53 5.79 6.07 6.70 6.75 4.58 3.43 3.92 3.33 4.36 MEAN OF MIXING RATIO AT 09 GMT. 3.29 3.93 4.17 4.73 6.31 6.40 6.59 6.29 4.66 4.28 4.11 4.37 4.93 MEAN OF MIXING RATIO AT 15 GMT. 2.48 3.10 3.98 4.64 5.82 6.48 6.43 6.11 4.37 4.54 4.62 3.98 4.71 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -24.5 -22.2 -18.5 -3.5 1.2 6.0 9.2 9.5 4.0 -1.5 -6.5 -10.0 -24.5 DAY 26 12 2 5 14 21 25 31 12 29 27 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 5.0 8.8 13.5 20.2 28.2 33.5 35.5 33.2 26.5 25.5 19.0 10.5 35.5 DAY 1 22 29 13 30 30 1 6 25 4 4 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.0 27.0 23.0 24.0 16.0 0.0 0.0 3.0 0.0 0.0 14.0 71.0 71.0 DAY 1 24 31 15 11 ** ** 30 ** ** 26 30 MONTHLY TOTAL PRECIPITATION IN MM. 76.0 92.0 82.0 83.0 63.0 0.0 0.0 6.0 0.0 0.0 22.0 211.0 635.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 39.4 23.0 0.9 36.7 NO. OF DAYS WITH PRECIPITATION. 10 10 8 7 10 0 0 2 0 0 3 10 60 NO. OF DAYS PRECIPITATION EQUAL 10 10 8 7 10 0 0 2 0 0 3 10 60 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 4 3 2 0 0 0 0 0 1 8 23 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 82 80 71 69 60 45 51 52 59 75 83 67 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 72 71 57 40 39 24 20 21 20 24 38 64 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 77 73 51 47 35 24 25 24 37 55 78 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 24 16 0 0 0 0 0 0 0 3 13 85 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 14 3 0 0 0 0 0 0 0 0 0 0 17 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 27 14 0 0 0 0 46 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 28 9 0 0 0 0 0 4 15 27 142 DATE OF START AND END FREEZING START = 27 OCT. END = 20 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -1.6 -0.9 2.9 8.4 13.2 18.3 21.4 21.0 18.6 11.9 7.2 4.8 10.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.3 -5.9 -1.4 2.0 6.5 9.7 13.5 12.6 9.1 4.0 1.5 -2.4 3.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.2 4.1 7.2 14.7 19.8 26.9 29.4 29.4 28.1 19.9 12.7 12.1 17.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.5 10.0 8.6 12.7 13.3 17.2 15.9 16.8 19.0 15.9 11.2 14.5 13.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.64 2.96 3.75 4.15 5.26 5.34 6.91 6.82 4.87 3.76 3.90 2.96 4.44 MEAN OF MIXING RATIO AT 09 GMT. 3.75 4.31 4.44 4.66 5.92 6.28 8.15 8.66 6.46 6.05 4.58 4.69 5.66 MEAN OF MIXING RATIO AT 15 GMT. 3.39 3.73 4.31 4.57 6.10 6.18 7.36 7.65 5.45 4.99 4.27 3.96 5.16 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -16.5 -10.5 -2.5 1.0 5.5 11.2 9.0 3.5 1.2 -4.8 -7.5 -16.5 DAY 16 9 13 5 8 6 8 12 30 9 30 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 12.5 13.5 21.5 27.0 30.5 32.2 32.5 30.5 25.0 17.5 15.2 32.5 DAY 29 28 30 19 18 29 15 15 4 1 8 19 24 HOUR MAXIMUM PRECIPITATION IN MM. 57.0 50.0 42.0 0.0 30.0 0.0 0.0 7.0 0.0 0.0 21.0 4.0 57.0 DAY 8 2 8 ** 6 ** ** 27 ** ** 11 8 MONTHLY TOTAL PRECIPITATION IN MM. 160.0 152.0 236.0 0.0 53.0 0.0 0.0 7.0 0.0 0.0 97.0 7.0 712.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 77.0 7.4 1.0 14.6 NO. OF DAYS WITH PRECIPITATION. 11 8 12 0 5 0 0 1 0 0 9 2 48 NO. OF DAYS PRECIPITATION EQUAL 11 8 12 0 5 0 0 1 0 0 9 2 48 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 5 11 0 2 0 0 0 0 0 4 0 27 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 78 80 66 62 51 52 56 50 55 66 67 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 65 69 59 40 37 24 26 28 22 34 42 44 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 76 68 47 45 30 31 34 28 41 52 56 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 13 7 0 0 0 0 0 0 0 1 10 53 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 4 5 2 0 0 0 0 0 0 0 0 0 11 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 12 9 2 0 0 0 25 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 26 18 6 0 0 0 0 0 0 12 24 113 DATE OF START AND END FREEZING START = 6 NOV. END = 15 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. 0.8 1.3 5.0 10.2 13.7 19.2 24.3 24.0 16.9 12.1 6.3 0.2 11.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.8 -4.8 -1.1 2.9 6.6 10.7 15.8 15.1 8.5 4.6 1.2 -4.9 4.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.5 7.3 11.2 17.3 20.8 27.7 32.8 32.8 25.3 19.6 11.4 5.3 18.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.3 12.1 12.3 14.4 14.2 17.0 17.0 17.7 16.8 15.0 10.2 10.2 14.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.68 2.58 3.84 4.80 5.51 5.73 8.35 6.67 5.46 5.17 4.21 3.02 4.84 MEAN OF MIXING RATIO AT 09 GMT. 3.70 3.78 4.12 5.56 6.01 7.29 11.78 8.22 7.14 6.04 5.35 3.40 6.03 MEAN OF MIXING RATIO AT 15 GMT. 3.32 3.30 4.33 5.39 6.05 7.39 10.66 7.10 6.25 5.87 5.00 3.61 5.69 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.5 -10.5 -5.5 -2.5 2.0 5.5 10.0 11.0 3.2 0.0 -4.5 -13.5 -17.5 DAY 28 21 3 4 7 6 1 27 23 13 20 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.5 13.0 16.2 22.5 26.8 29.5 35.5 36.0 32.0 23.6 19.2 9.5 36.0 DAY 3 27 30 23 31 18 26 5 2 6 3 28 24 HOUR MAXIMUM PRECIPITATION IN MM. 17.0 53.0 31.0 16.2 13.0 0.0 5.0 0.0 0.5 5.0 48.5 27.0 53.0 DAY 5 1 12 2 4 ** 15 ** 15 8 30 3 MONTHLY TOTAL PRECIPITATION IN MM. 46.0 69.0 84.0 35.2 39.9 0.0 9.0 0.0 0.9 14.0 296.0 109.0 703.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 28.3 10.7 1.4 59.6 NO. OF DAYS WITH PRECIPITATION. 6 4 6 4 6 0 2 0 2 4 12 10 56 NO. OF DAYS PRECIPITATION EQUAL 6 4 6 4 6 0 2 0 0 4 12 10 54 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 3 2 2 0 0 0 0 0 8 4 21 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 68 80 73 69 53 56 46 58 72 73 80 67 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 52 50 44 39 34 26 32 22 31 37 55 51 39 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 60 59 48 45 36 40 26 34 48 65 73 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 17 16 6 0 0 0 0 0 0 0 2 19 60 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 1 0 0 0 0 1 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 2 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 29 26 4 0 0 0 59 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 25 26 20 4 0 0 0 0 0 1 13 29 118 DATE OF START AND END FREEZING START = 13 OCT. END = 7 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. 0.9 0.6 4.7 9.6 14.0 18.3 23.1 22.5 18.5 12.1 7.6 -1.9 10.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.0 -4.7 -1.2 4.1 7.2 10.1 14.7 13.9 9.8 3.4 -0.5 -7.7 3.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.8 5.9 10.6 15.1 20.9 26.4 31.5 31.1 27.2 20.7 15.6 3.9 18.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.8 10.6 11.8 11.0 13.7 16.3 16.8 17.2 17.4 17.3 16.1 11.6 14.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.69 2.97 3.24 5.28 5.58 5.75 5.89 5.31 5.00 4.00 3.19 2.49 4.28 MEAN OF MIXING RATIO AT 09 GMT. 3.80 4.20 4.09 5.78 5.95 5.73 5.72 7.03 5.45 4.63 3.75 3.88 5.00 MEAN OF MIXING RATIO AT 15 GMT. 3.65 3.57 4.02 5.78 5.86 6.03 6.00 5.98 5.50 4.14 3.55 3.26 4.78 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.7 -14.5 -6.2 -1.8 1.5 5.5 9.0 12.0 6.0 -1.0 -12.0 -14.5 -14.5 DAY 14 11 27 1 10 1 1 11 27 16 28 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 10.5 15.0 20.0 24.0 32.0 34.5 33.5 31.0 26.5 19.2 9.0 34.5 DAY 28 3 30 30 21 21 17 7 13 5 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 19.0 35.0 12.0 22.0 6.0 27.0 0.0 0.0 0.0 4.0 0.0 32.0 35.0 DAY 13 5 16 23 30 1 ** ** ** 22 ** 12 MONTHLY TOTAL PRECIPITATION IN MM. 49.0 131.0 46.0 64.0 25.0 33.0 0.0 0.0 0.0 4.0 0.0 67.0 419.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.9 29.1 0.0 16.9 NO. OF DAYS WITH PRECIPITATION. 5 6 6 8 6 3 0 0 0 1 0 6 41 NO. OF DAYS PRECIPITATION EQUAL 5 6 6 8 6 3 0 0 0 1 0 6 41 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 4 2 2 0 1 0 0 0 0 0 2 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 78 67 78 68 58 43 41 51 63 64 82 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 62 43 46 34 23 17 21 20 26 28 64 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 66 69 54 60 44 35 23 24 28 33 42 72 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 14 9 0 0 0 0 0 0 0 6 23 72 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 2 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 27 30 2 0 0 0 61 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 24 19 4 0 0 0 0 0 3 16 31 125 DATE OF START AND END FREEZING START = 15 OCT. END = 17 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -4.7 2.1 3.9 9.9 15.0 19.6 21.1 21.2 18.8 12.8 6.8 3.4 10.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.2 -2.4 -0.4 3.8 7.7 11.3 14.2 13.3 9.2 4.3 -0.7 -2.9 3.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.8 6.6 8.2 16.0 22.3 27.9 28.0 29.1 28.3 21.3 14.2 9.8 17.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.0 9.0 8.6 12.2 14.6 16.6 13.8 15.8 19.1 17.0 14.9 12.7 13.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.15 3.79 4.12 4.84 5.81 5.54 6.22 5.64 4.81 4.14 3.35 3.35 4.48 MEAN OF MIXING RATIO AT 09 GMT. 3.33 4.55 4.35 4.67 6.58 5.86 6.52 6.57 5.78 4.56 4.10 3.87 5.06 MEAN OF MIXING RATIO AT 15 GMT. 2.69 4.24 4.57 4.81 6.26 5.48 5.82 5.69 5.12 4.90 4.23 3.81 4.80 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -24.5 -10.2 -4.3 -2.5 3.0 4.0 11.5 9.0 6.0 -1.5 -5.5 -7.4 -24.5 DAY 25 6 28 6 12 7 7 5 21 19 11 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 11.5 16.0 20.0 28.0 29.2 30.0 31.2 32.2 28.0 21.0 15.0 32.2 DAY 31 9 30 30 31 22 4 17 13 1 5 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 35.0 33.0 33.0 30.0 8.0 0.0 0.0 4.0 0.0 3.0 4.0 13.0 35.0 DAY 6 2 2 15 12 ** ** 30 ** 10 28 23 MONTHLY TOTAL PRECIPITATION IN MM. 143.0 136.0 212.0 96.5 16.0 0.0 0.0 4.0 0.0 6.0 10.0 34.0 657.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 74.7 17.1 0.6 7.6 NO. OF DAYS WITH PRECIPITATION. 10 10 14 8 4 0 0 1 0 2 4 5 58 NO. OF DAYS PRECIPITATION EQUAL 10 10 14 8 4 0 0 1 0 2 4 5 58 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 6 6 7 3 0 0 0 0 0 0 0 1 23 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 87 83 72 67 49 47 44 51 59 69 82 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 65 65 54 35 34 21 23 22 20 24 36 43 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 76 70 47 44 27 26 24 26 38 51 59 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 8 3 0 0 0 0 0 0 0 2 12 49 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 13 1 0 0 0 0 0 0 0 0 0 0 14 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 10 7 0 0 0 18 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 22 17 4 0 0 0 0 0 5 22 28 128 DATE OF START AND END FREEZING START = 18 OCT. END = 7 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -0.8 0.6 2.7 8.8 14.1 18.9 24.0 22.8 17.8 13.6 5.9 -0.3 10.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.6 -5.2 -1.9 2.7 7.3 11.1 15.9 13.6 8.6 6.1 0.1 -6.1 3.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.0 6.4 7.2 14.9 21.0 26.7 32.1 31.9 27.1 21.1 11.6 5.6 17.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.6 11.6 9.1 12.2 13.7 15.6 16.2 18.3 18.5 15.0 11.5 11.7 13.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.72 2.73 3.75 4.79 5.31 6.48 8.27 5.67 4.42 4.81 4.15 2.92 4.67 MEAN OF MIXING RATIO AT 09 GMT. 3.42 3.43 3.97 4.78 5.64 7.50 13.73 6.76 5.93 4.80 4.92 3.84 5.73 MEAN OF MIXING RATIO AT 15 GMT. 3.11 3.20 3.77 4.90 5.71 7.10 11.53 5.49 5.01 4.91 4.85 3.48 5.26 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -22.6 -15.5 -7.6 -3.4 1.0 6.5 9.4 9.2 3.0 1.0 -5.0 -16.5 -22.6 DAY 20 2 1 1 6 3 7 30 10 30 25 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 14.0 14.5 25.5 26.0 30.5 35.0 34.2 29.5 26.5 16.0 12.4 35.0 DAY 6 21 2 28 31 30 28 13 6 6 2 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 26.0 5.0 44.0 39.0 18.0 3.0 0.0 0.0 0.0 0.0 0.0 25.0 44.0 DAY 17 22 29 5 5 23 ** ** ** ** ** 14 MONTHLY TOTAL PRECIPITATION IN MM. 56.0 12.0 174.0 102.0 21.5 3.0 0.0 0.0 0.0 0.0 0.0 112.0 480.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.4 26.3 0.0 23.3 NO. OF DAYS WITH PRECIPITATION. 7 3 14 9 2 1 0 0 0 0 0 7 43 NO. OF DAYS PRECIPITATION EQUAL 7 3 14 9 2 1 0 0 0 0 0 7 43 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 6 3 1 0 0 0 0 0 0 6 18 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 77 85 77 63 58 55 43 48 62 81 83 68 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 50 56 40 31 28 37 19 23 26 49 56 39 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 62 64 54 41 37 42 21 27 36 64 71 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 18 6 0 0 0 0 0 0 0 2 22 68 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 5 1 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 0 3 24 29 0 0 0 0 56 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 23 23 7 0 0 0 0 0 0 11 27 120 DATE OF START AND END FREEZING START = 16 NOV. END = 14 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -3.3 -0.0 5.0 10.9 15.0 19.4 22.3 21.7 18.2 12.6 8.5 7.6 11.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.9 -5.0 -0.1 4.6 7.7 11.2 14.6 13.5 9.3 3.6 -0.7 0.5 4.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.2 5.0 10.2 17.1 22.2 27.7 30.0 30.0 27.1 21.7 17.8 14.7 18.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.1 10.0 10.3 12.5 14.5 16.5 15.4 16.5 17.8 18.1 18.5 14.2 14.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.48 3.26 4.27 4.85 5.25 5.63 7.14 6.21 5.07 4.08 3.17 3.53 4.58 MEAN OF MIXING RATIO AT 09 GMT. 3.52 3.93 4.62 4.98 5.61 6.07 7.92 6.53 5.55 5.15 4.15 3.68 5.14 MEAN OF MIXING RATIO AT 15 GMT. 3.15 3.87 4.31 4.73 5.23 5.75 7.13 6.00 5.06 4.83 3.92 4.12 4.84 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.5 -13.6 -7.0 -0.5 1.0 8.0 11.5 10.0 5.0 -1.2 -3.4 -6.5 -18.5 DAY 14 17 4 6 2 2 29 4 23 28 27 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.5 11.4 18.5 23.5 27.0 31.0 35.0 33.2 30.0 26.0 20.5 21.5 35.0 DAY 9 6 29 16 28 12 11 18 2 1 18 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 50.0 36.0 132.0 6.0 6.0 0.0 4.0 0.0 3.0 15.0 0.0 9.0 132.0 DAY 6 9 18 5 13 ** 26 ** 12 11 ** 4 MONTHLY TOTAL PRECIPITATION IN MM. 138.0 168.0 277.0 19.0 6.0 0.0 7.0 0.0 3.0 30.0 0.0 26.0 674.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 86.5 3.7 1.5 8.3 NO. OF DAYS WITH PRECIPITATION. 10 10 10 4 1 0 2 0 1 3 0 4 45 NO. OF DAYS PRECIPITATION EQUAL 10 10 10 4 1 0 2 0 1 3 0 4 45 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 4 5 0 0 0 0 0 0 1 0 0 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 85 79 67 58 51 51 47 52 61 66 67 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 62 51 37 28 22 25 20 21 27 28 31 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 76 62 42 35 29 29 24 27 38 39 50 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 16 6 0 0 0 0 0 0 0 0 4 49 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 6 5 0 0 0 0 0 0 0 0 0 0 11 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 17 17 2 0 0 0 41 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 24 20 3 0 0 0 0 0 2 24 14 118 DATE OF START AND END FREEZING START = 28 OCT. END = 25 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. 0.4 2.8 4.3 10.5 15.5 19.7 22.6 22.4 18.1 13.0 7.1 3.3 11.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.2 -2.4 -1.0 4.1 7.1 11.0 14.9 14.4 8.6 4.1 1.1 -4.0 4.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.0 7.9 9.5 16.9 23.9 28.4 30.4 30.3 27.7 22.0 13.2 10.6 18.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.2 10.3 10.5 12.8 16.8 17.4 15.5 15.9 19.1 17.9 12.1 14.6 14.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.38 3.64 3.71 4.74 4.68 4.96 6.15 5.47 4.26 3.82 4.13 2.93 4.32 MEAN OF MIXING RATIO AT 09 GMT. 4.23 4.23 4.02 4.64 5.17 5.00 6.01 5.17 4.09 3.94 4.11 3.24 4.49 MEAN OF MIXING RATIO AT 15 GMT. 3.66 4.18 4.23 4.76 4.53 5.20 5.94 5.56 4.57 4.19 4.52 3.21 4.55 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -13.5 -6.2 -4.0 1.5 7.0 11.5 11.0 3.5 0.0 -8.6 -11.5 -13.5 DAY 27 7 8 11 24 16 14 29 18 22 30 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 12.6 18.5 21.0 29.0 31.0 34.0 32.5 31.0 25.0 16.5 16.5 34.0 DAY 6 8 31 26 30 30 4 14 9 1 5 30 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.0 34.0 38.0 12.0 0.0 0.0 12.0 0.0 0.0 0.0 15.0 17.0 38.0 DAY 17 21 13 6 ** ** 13 ** ** ** 1 12 MONTHLY TOTAL PRECIPITATION IN MM. 131.5 145.0 139.0 31.0 0.0 0.0 16.0 0.0 0.0 0.0 41.0 48.0 551.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 75.3 5.6 2.9 16.1 NO. OF DAYS WITH PRECIPITATION. 13 11 9 6 0 0 2 0 0 0 5 4 50 NO. OF DAYS PRECIPITATION EQUAL 13 11 9 6 0 0 2 0 0 0 5 4 50 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 6 6 4 1 0 0 1 0 0 0 2 3 23 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 83 80 67 53 44 44 40 45 55 72 75 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 54 49 32 24 17 19 16 14 20 37 35 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 70 63 46 29 25 24 22 23 32 57 52 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 9 9 1 0 0 0 0 0 0 2 17 57 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 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 0 0 7 21 24 3 0 0 0 55 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 22 19 5 0 0 0 0 0 1 14 27 114 DATE OF START AND END FREEZING START = 22 OCT. END = 19 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -0.2 -1.9 4.8 12.9 15.6 19.6 22.3 21.8 18.5 12.4 5.1 1.9 11.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.6 -8.7 -1.9 5.4 6.8 10.5 14.2 13.1 9.4 4.3 -0.8 -2.9 3.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.2 4.9 11.4 20.4 24.4 28.6 30.3 30.5 27.6 20.5 11.0 6.6 18.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.8 13.6 13.3 15.0 17.6 18.1 16.1 17.4 18.2 16.2 11.8 9.5 14.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.97 2.23 3.51 4.30 4.13 4.88 6.71 6.24 5.53 5.37 3.06 3.02 4.33 MEAN OF MIXING RATIO AT 09 GMT. 3.90 3.62 3.13 4.22 4.41 5.24 9.70 9.12 8.70 9.54 6.07 5.35 6.08 MEAN OF MIXING RATIO AT 15 GMT. 3.10 3.18 3.14 4.30 4.14 5.25 8.76 8.40 7.46 7.61 5.60 4.53 5.46 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.5 -21.2 -9.2 -1.6 2.0 5.0 10.4 10.0 5.2 0.8 -6.8 -12.2 -21.2 DAY 24 4 16 2 13 1 21 30 27 19 30 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 9.5 16.0 24.0 28.0 32.5 34.5 32.0 31.5 27.5 18.0 10.5 34.5 DAY 1 17 21 13 31 21 10 3 9 13 1 19 24 HOUR MAXIMUM PRECIPITATION IN MM. 38.0 28.0 23.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 17.0 26.0 38.0 DAY 28 25 25 ** ** ** ** ** ** 4 17 11 MONTHLY TOTAL PRECIPITATION IN MM. 140.0 89.0 36.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 37.0 122.0 426.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 62.2 0.0 0.0 37.8 NO. OF DAYS WITH PRECIPITATION. 10 7 4 0 0 0 0 0 0 1 7 13 42 NO. OF DAYS PRECIPITATION EQUAL 10 7 4 0 0 0 0 0 0 1 7 13 42 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 3 1 0 0 0 0 0 0 0 2 5 16 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 76 79 56 48 45 50 49 56 77 60 66 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 56 32 23 19 18 30 28 32 53 61 72 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 67 43 33 24 24 34 33 38 61 76 84 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 22 8 0 0 0 0 0 0 0 5 12 69 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 2 3 0 0 0 0 0 0 0 0 0 0 5 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 17 24 4 0 0 0 54 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 28 21 3 0 0 0 0 0 0 19 21 122 DATE OF START AND END FREEZING START = 8 NOV. END = 26 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -0.9 1.4 6.1 11.6 15.7 20.1 23.7 22.4 18.5 14.6 6.4 3.3 11.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.4 -5.1 -1.2 3.8 8.1 11.1 15.4 13.7 9.5 6.8 -0.2 -1.1 4.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.5 7.9 13.4 19.5 23.3 29.0 32.1 31.1 27.5 22.3 12.9 7.6 19.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.9 13.0 14.6 15.7 15.2 17.9 16.7 17.4 18.0 15.5 13.1 8.7 14.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.37 2.91 3.81 4.03 5.36 4.96 6.07 5.74 4.68 4.72 3.84 4.44 4.41 MEAN OF MIXING RATIO AT 09 GMT. 4.42 4.53 5.10 4.84 6.26 5.41 6.16 6.49 5.63 6.35 4.27 5.20 5.39 MEAN OF MIXING RATIO AT 15 GMT. 3.46 3.98 4.41 4.50 5.59 5.10 6.18 6.01 5.29 5.62 4.11 5.02 4.94 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -16.5 -9.2 -6.4 -3.0 3.0 6.5 12.0 10.0 6.5 3.4 -7.5 -9.2 -16.5 DAY 29 13 12 14 1 1 31 1 27 16 25 3 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.0 14.5 18.5 23.0 28.5 33.0 35.0 34.5 30.5 25.5 20.5 15.0 35.0 DAY 3 28 31 25 14 25 4 10 3 1 5 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.0 29.0 41.0 0.0 11.0 0.0 0.0 0.0 0.0 4.0 8.0 57.0 57.0 DAY 24 21 10 ** 11 ** ** ** ** 28 18 5 MONTHLY TOTAL PRECIPITATION IN MM. 47.0 70.0 95.0 0.0 25.0 0.0 0.0 0.0 0.0 4.0 39.0 350.5 630.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 33.6 4.0 0.0 62.4 NO. OF DAYS WITH PRECIPITATION. 7 7 5 0 3 0 0 0 0 1 6 13 42 NO. OF DAYS PRECIPITATION EQUAL 7 7 5 0 3 0 0 0 0 1 6 13 42 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 3 0 2 0 0 0 0 0 0 9 18 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 80 80 60 59 44 42 43 47 57 74 92 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 65 57 46 29 30 19 17 19 20 31 40 67 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 71 53 35 36 22 24 23 25 39 51 80 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 19 4 0 0 0 0 0 0 0 6 3 55 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 2 0 0 0 0 0 0 0 0 0 0 0 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 10 24 25 4 0 0 0 63 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 26 20 3 0 0 0 0 0 0 15 16 111 DATE OF START AND END FREEZING START = 2 NOV. END = 18 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -1.1 1.9 6.4 9.4 15.0 19.0 21.5 22.0 19.3 13.6 5.9 1.0 11.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.7 -3.9 -0.5 4.1 7.4 10.9 13.5 13.0 9.9 4.7 -0.1 -3.5 4.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.5 7.7 13.3 14.8 22.6 27.0 29.5 31.1 28.8 22.6 12.0 5.5 18.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.2 11.6 13.8 10.7 15.2 16.1 16.0 18.1 18.9 17.9 12.1 9.0 14.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.79 3.27 3.71 5.05 4.85 5.09 5.99 5.10 4.77 3.59 4.30 3.48 4.33 MEAN OF MIXING RATIO AT 09 GMT. 3.70 3.98 3.82 5.35 4.79 5.55 6.26 6.24 6.03 4.33 4.55 4.34 4.91 MEAN OF MIXING RATIO AT 15 GMT. 3.65 3.93 4.02 5.10 4.81 5.64 5.65 5.39 5.05 4.13 4.82 4.08 4.69 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.5 -10.2 -6.5 -3.5 1.5 5.4 10.0 9.5 6.4 -1.0 -5.5 -16.6 -16.6 DAY 15 2 8 6 7 1 1 31 29 26 30 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.8 12.5 19.0 23.5 29.0 29.5 33.5 33.5 31.5 26.5 18.5 9.2 33.5 DAY 4 24 12 27 31 17 21 20 3 10 11 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 40.0 34.0 41.0 36.0 5.0 0.0 0.0 0.0 0.0 0.0 20.0 56.0 56.0 DAY 8 14 21 2 12 ** ** ** ** ** 7 10 MONTHLY TOTAL PRECIPITATION IN MM. 148.0 65.0 84.0 156.0 8.0 0.0 0.0 0.0 0.0 0.0 75.0 181.0 717.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 41.4 22.9 0.0 35.7 NO. OF DAYS WITH PRECIPITATION. 9 6 6 9 2 0 0 0 0 0 9 10 51 NO. OF DAYS PRECIPITATION EQUAL 9 6 6 9 2 0 0 0 0 0 9 10 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 6 2 2 5 0 0 0 0 0 0 4 6 25 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 85 75 74 54 45 45 41 46 50 83 87 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 52 36 44 24 20 20 18 20 21 44 65 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 65 49 54 33 27 23 22 23 29 64 78 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 14 7 0 0 0 0 0 0 0 7 13 61 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 1 0 0 0 0 0 0 0 0 0 0 1 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 13 23 10 0 0 0 46 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 25 16 7 0 0 0 0 0 3 17 26 121 DATE OF START AND END FREEZING START = 25 OCT. END = 24 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -0.1 1.9 4.7 10.8 13.8 19.0 23.7 21.8 17.9 13.1 6.3 1.9 11.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.1 -3.5 -1.0 4.7 6.1 10.1 15.0 12.6 8.2 4.0 -1.2 -3.1 3.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.0 7.2 10.5 16.8 21.6 27.9 32.4 31.0 27.6 22.3 13.8 7.0 18.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.1 10.7 11.5 12.1 15.5 17.8 17.4 18.4 19.4 18.3 15.0 10.1 14.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.79 3.29 3.61 5.11 4.80 5.09 6.44 5.22 4.53 4.15 3.44 3.57 4.34 MEAN OF MIXING RATIO AT 09 GMT. 3.31 4.32 3.96 5.39 5.51 5.85 8.30 6.63 5.83 5.41 3.98 4.09 5.22 MEAN OF MIXING RATIO AT 15 GMT. 3.07 3.76 4.36 5.05 5.12 5.73 7.76 5.54 4.86 4.36 4.07 3.93 4.80 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.5 -11.0 -8.5 -0.5 0.0 7.0 9.0 10.0 5.5 1.0 -8.0 -13.5 -15.5 DAY 26 1 2 3 1 7 2 25 27 25 24 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 12.5 16.5 22.0 24.5 32.0 34.5 33.0 30.5 25.0 18.6 13.5 34.5 DAY 12 24 25 6 22 23 10 1 1 2 5 16 24 HOUR MAXIMUM PRECIPITATION IN MM. 15.5 36.0 43.0 28.0 2.0 0.0 0.0 0.2 0.0 0.0 5.0 42.0 43.0 DAY 28 14 26 21 8 ** ** 7 ** ** 29 28 MONTHLY TOTAL PRECIPITATION IN MM. 59.0 150.0 131.0 89.0 2.0 0.0 0.0 0.2 0.0 0.0 10.0 89.5 530.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 64.1 17.1 0.0 18.7 NO. OF DAYS WITH PRECIPITATION. 10 11 8 7 1 0 0 1 0 0 3 9 50 NO. OF DAYS PRECIPITATION EQUAL 10 11 8 7 1 0 0 0 0 0 3 9 49 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 5 6 4 0 0 0 0 0 0 0 2 20 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 82 74 70 60 49 44 41 49 58 69 80 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 58 43 40 28 21 23 20 21 27 34 54 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 64 67 62 49 36 28 29 21 24 31 50 66 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 10 7 0 0 0 0 0 0 0 8 13 59 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 5 0 0 0 0 0 0 0 0 0 0 3 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 29 27 3 0 0 0 68 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 24 20 2 1 0 0 0 0 0 20 22 120 DATE OF START AND END FREEZING START = 3 NOV. END = 1 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -2.9 -0.5 4.3 9.7 14.5 19.3 22.6 21.8 17.5 12.1 6.0 0.8 10.4 SD OF MEAN DAILY TEMPERATURE IN C. 2.88 2.48 1.88 1.39 1.18 0.93 1.16 0.99 1.16 1.31 1.11 2.55 1.59 AVERAGE OF MINIMUM TEMPERATURE IN C. -9.5 -7.3 -2.1 2.9 6.5 9.9 13.4 12.3 7.4 2.7 -1.6 -5.9 2.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.7 6.1 10.6 16.6 22.5 28.8 31.7 31.3 27.6 21.5 13.8 7.3 18.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.1 13.1 12.6 13.7 15.9 18.8 18.2 18.9 20.3 18.8 15.4 13.3 16.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.26 2.66 3.60 4.66 5.48 5.99 7.12 6.35 4.85 4.12 3.47 2.79 4.44 MEAN OF MIXING RATIO AT 09 GMT. 3.55 4.03 4.36 5.00 5.80 6.27 7.79 6.96 5.70 5.08 4.38 3.98 5.24 MEAN OF MIXING RATIO AT 15 GMT. 3.01 3.46 4.06 4.68 5.29 5.69 6.83 6.12 4.95 4.52 4.13 3.52 4.68 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -29.5 -26.5 -18.5 -10.5 -1.0 2.5 7.5 2.5 -2.5 -5.5 -12.5 -27.5 -29.5 YEAR - DAY 77-23 72-11 92- 2 67- 2 67- 1 71- 3 68-18 80-25 65-26 70-26 73-10 64-20 77-23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.2 17.5 22.5 29.5 34.5 36.5 39.5 39.5 36.5 34.5 27.5 21.5 39.5 YEAR - DAY 66- 6 71-24 84-10 79-18 70-19 70- 5 70-29 75-23 66-11 70-12 65- 4 98-10 70-29 24 HOUR MAXIMUM PRECIPITATION IN MM. 57.0 59.0 132.0 54.0 58.0 34.4 21.0 7.0 3.0 30.0 60.0 94.0 132.0 YEAR - DAY 93- 8 80-11 98-18 68- 2 86- 4 79- 3 76-24 72- 5 98-12 66-13 67-24 89- 4 98-18 MONTHLY TOTAL PRECIPITATION IN MM. 89.6 93.1 117.6 72.1 28.4 2.1 2.8 1.2 0.2 15.9 55.9 96.9 575.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 52.2 17.8 0.7 29.3 NO. OF DAYS WITH PRECIPITATION. 8 7 8 6 3 0 1 0 0 2 4 7 46 NO. OF DAYS PRECIPITATION EQUAL 8 7 8 6 3 0 1 0 0 2 4 7 46 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 4 5 3 1 0 0 0 0 1 2 3 23 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 77 75 67 59 50 49 49 53 61 71 76 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 61 49 39 31 22 23 21 21 28 40 55 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 67 58 46 37 26 26 24 25 35 51 65 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 20 10 1 0 0 0 0 0 0 8 20 84 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 7 3 0 0 0 0 0 0 0 0 0 2 12 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 10 23 23 5 0 0 0 61 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 26 21 7 0 0 0 0 0 7 21 28 139 DATE OF START AND END FREEZING START = 13 SEP. END = 5 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION EMAM-GHEIS LATITUDE 31 44 N DATA PROCESSING CENTER LONGITUDE 51 21 E ELEVATION 2195 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. -2.9 -0.5 4.4 10.1 15.5 21.0 24.1 23.1 18.8 12.9 6.4 0.9 11.2 AVERAGE DEW POINT TEMPERATURE. IN C. -8.2 -6.1 -3.4 -0.9 1.3 2.5 4.9 3.4 0.3 -1.6 -3.5 -5.7 -1.4 AVERAGE OF MIXING RATIO IN G/KG 2.94 3.38 4.00 4.77 5.52 5.98 7.24 6.48 5.16 4.57 3.99 3.43 4.79 AVERAGE OF VAPOUR PRESSURE HPA 3.63 4.19 4.97 5.95 6.90 7.51 9.09 8.14 6.48 5.71 4.97 4.25 5.98 AVERAGE OF SATURATION DEFICIT IN HPA 1.84 2.24 4.00 7.22 11.78 19.08 22.78 22.29 17.32 10.66 5.49 2.87 10.63 AVERAGE RELATIVE HUMIDITY IN PERCENT 69 68 61 51 42 33 33 31 33 42 54 65 49 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 82 81 78 69 60 50 49 49 53 62 73 80 66 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 56 56 47 36 29 21 21 20 20 27 38 51 35 NO. OF DAYS PRECIPITATION EQUAL 6 5 7 4 2 0 0 0 0 1 3 5 33 OR MORE THAN 5 MM.