IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1964 -7.8 0.5 6.0 7.6 15.7 19.9 21.2 20.0 17.0 11.9 8.1 1.2 29.0 1965 -2.7 0.3 6.2 9.0 15.8 18.8 20.4 21.4 17.0 9.1 7.9 1.7 24.1 1966 6.1 4.7 6.0 10.2 13.3 19.7 19.2 19.8 16.6 11.7 5.7 2.1 17.7 1967 1.4 -2.2 3.2 7.8 14.8 16.8 19.0 19.5 16.3 12.9 7.2 2.4 21.7 1968 -0.5 -0.4 4.7 8.9 14.8 16.6 20.6 20.3 18.3 12.8 7.9 2.4 21.1 1969 -3.2 -2.8 4.8 8.2 15.4 19.7 19.1 19.0 15.3 11.6 7.4 4.7 22.9 1970 -1.5 3.4 6.0 11.6 15.0 17.6 19.6 20.4 15.3 11.4 9.0 1.1 21.9 1971 -0.5 -1.6 6.8 7.6 14.3 15.8 19.8 19.9 19.6 13.5 8.9 1.3 21.5 1972 -4.6 -5.8 0.5 12.8 13.2 18.6 21.5 19.4 19.2 15.5 7.9 -4.9 27.3 1973 -5.4 2.9 4.1 9.3 12.0 14.9 19.2 18.4 16.7 15.4 4.2 1.7 24.6 1974 -6.9 -7.1 3.0 9.1 15.0 18.3 19.5 17.9 16.6 12.6 5.7 0.5 26.6 1975 -0.7 -1.4 4.6 10.5 15.4 18.8 22.5 17.1 13.3 11.4 4.7 -0.6 23.9 1976 -0.2 -4.3 3.1 8.1 12.6 17.8 19.4 22.2 16.6 14.6 6.5 -0.3 26.5 1977 -6.9 2.3 9.0 9.3 11.9 19.2 19.7 20.3 17.3 8.8 5.3 -0.0 27.2 1978 0.1 3.4 7.5 10.4 13.8 16.4 20.3 19.9 18.3 14.3 1.2 3.3 20.2 1979 0.8 2.2 3.4 9.6 12.5 16.1 21.2 23.5 19.7 13.5 10.1 4.6 22.7 1980 -1.9 0.3 4.4 10.7 15.3 19.2 23.4 20.6 18.9 13.7 9.3 5.0 25.3 1981 2.4 2.1 6.3 8.2 13.2 17.1 21.5 20.5 18.1 13.4 7.9 5.6 19.4 1982 -1.2 -3.0 2.0 12.5 14.3 18.2 21.1 18.5 15.3 9.9 1.4 ****** ****** 1983 -4.1 -0.6 2.5 9.5 14.0 18.3 21.8 20.2 16.4 11.6 8.6 2.3 25.9 1984 1.2 -3.8 3.9 11.2 11.4 16.1 22.4 19.8 17.3 10.2 6.2 -5.4 27.8 1985 -1.7 -2.7 -1.9 12.4 15.3 19.7 19.5 20.8 18.7 ****** 6.8 ****** ****** 1986 0.7 0.9 1.2 10.3 13.6 16.6 22.2 21.7 19.1 13.0 4.6 -1.0 23.2 1987 3.9 3.2 3.7 9.3 17.2 20.2 21.9 21.2 17.1 7.0 7.1 2.8 19.1 1988 -1.6 -0.3 5.5 10.4 14.2 19.1 20.7 19.6 17.1 12.6 6.9 3.0 22.3 1989 -5.7 -4.3 6.1 13.2 15.3 20.1 23.7 22.5 17.9 13.6 7.4 2.5 29.4 1990 -4.2 -1.5 3.7 8.7 13.5 20.2 21.5 20.3 19.1 12.6 9.9 1.5 25.7 1991 -1.8 -1.2 3.3 11.7 13.9 18.1 21.8 21.3 17.5 13.7 6.4 0.2 23.6 1992 -3.4 -1.2 1.4 8.8 11.3 17.2 20.9 18.9 16.5 13.5 7.5 0.1 24.3 1993 -4.5 -4.0 1.8 9.6 13.9 17.6 20.6 20.8 18.1 11.2 0.0 0.7 25.3 1994 1.8 -0.7 5.2 12.1 14.6 17.5 20.1 21.2 16.5 12.3 6.8 -0.9 22.1 1995 2.5 2.6 6.4 10.6 15.3 18.6 21.3 22.4 18.0 11.4 8.0 0.5 21.9 1996 -1.6 1.5 2.9 9.0 16.0 18.0 22.4 22.0 19.4 12.5 5.9 5.7 24.0 1997 0.1 -3.0 0.1 10.5 15.0 19.4 21.5 22.5 16.2 15.0 6.6 2.3 25.5 1998 -2.9 -2.9 5.4 12.2 15.0 21.0 22.1 22.8 18.0 13.4 9.4 5.1 25.7 1999 2.3 4.1 5.5 9.4 14.2 19.0 21.2 24.4 17.9 13.1 4.9 5.2 22.1 2000 -0.6 0.3 3.2 13.2 14.9 18.8 23.5 22.7 18.5 10.6 5.2 3.2 24.1 MEAN -1.4 -0.5 4.1 10.1 14.2 18.2 21.0 20.6 17.4 12.4 6.6 1.7 22.4 SD 3.13 2.91 2.23 1.62 1.34 1.44 1.28 1.59 1.40 1.85 2.29 2.55 1.97 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 -14.1 -4.1 0.4 2.4 7.8 12.1 14.1 13.3 9.9 3.6 0.9 -3.7 3.6 1965 -7.1 -4.7 -0.0 2.5 7.5 10.9 12.2 11.7 8.4 2.4 0.7 -7.8 3.1 1966 1.0 -1.6 -0.7 3.1 6.4 11.5 8.2 9.5 9.9 5.7 -3.9 -6.9 3.5 1967 -4.1 -7.0 -1.6 1.8 7.3 8.6 11.5 10.9 8.5 5.5 1.7 -3.5 3.3 1968 -6.6 -6.6 -2.2 1.6 7.8 9.2 11.7 11.5 8.5 5.1 2.4 -2.2 3.4 1969 -7.4 -7.8 -0.4 2.6 7.9 10.7 11.2 8.8 6.6 5.7 2.2 -0.9 3.3 1970 -7.9 -3.1 0.7 4.9 7.5 8.8 10.7 12.8 7.9 2.9 2.7 -2.4 3.8 1971 -4.5 -4.3 1.8 2.3 7.4 6.5 10.0 10.5 9.3 3.9 1.9 -4.1 3.4 1972 -10.6 -12.2 -3.4 6.6 7.9 11.3 13.9 10.4 10.5 6.9 1.3 -11.2 2.6 1973 -13.2 -3.1 -2.7 3.1 2.8 5.7 9.0 8.3 8.2 7.5 -4.0 -5.0 1.4 1974 -14.2 -14.5 -3.0 2.1 5.2 8.6 10.7 8.5 8.1 4.4 -0.8 -6.2 0.8 1975 -5.7 -7.5 -2.4 3.0 7.7 10.0 12.2 8.9 6.9 3.8 -1.3 -5.4 2.5 1976 -6.0 -11.1 -3.2 1.5 5.6 9.2 9.9 12.0 8.1 7.0 0.0 -6.6 2.2 1977 -13.9 -4.9 2.4 2.6 4.3 10.8 11.7 11.3 8.8 0.6 -2.7 -6.6 2.0 1978 -6.2 -4.3 -0.9 2.0 6.1 7.9 10.0 11.9 8.2 6.0 -5.3 -2.0 2.8 1979 -5.4 -4.6 -3.6 1.4 4.7 8.6 13.2 17.0 11.8 5.5 1.7 -3.2 3.9 1980 -9.0 -6.0 -2.1 2.8 7.2 10.2 15.1 13.5 11.9 6.5 1.4 -2.4 4.1 1981 -4.1 -5.1 -1.8 -0.1 5.2 10.0 14.4 13.4 9.0 4.5 0.3 -1.7 3.7 1982 -9.1 -10.0 -6.0 3.8 7.0 10.9 13.8 10.7 4.9 2.5 -4.6 ****** ****** 1983 -10.3 -7.1 -4.4 1.1 5.9 10.7 13.0 12.0 8.1 2.0 1.4 -4.6 2.3 1984 -6.9 -10.1 -3.0 2.3 3.3 6.2 13.1 11.5 9.3 3.1 -1.3 -11.8 1.3 1985 -11.0 -9.2 -9.7 3.7 7.5 10.7 11.2 11.4 8.4 ****** -0.7 ****** ****** 1986 -3.4 -3.1 -3.1 6.0 7.9 10.6 15.7 14.8 11.4 7.9 1.8 -4.5 5.2 1987 -0.4 -1.5 -0.9 2.5 9.8 13.0 14.9 14.6 10.2 3.5 1.7 -0.7 5.6 1988 -4.6 -3.9 0.9 4.9 8.1 12.0 14.8 14.5 11.4 7.4 1.8 -1.0 5.5 1989 -9.7 -9.5 1.1 6.0 8.0 12.5 17.5 16.1 11.1 8.0 3.6 -2.0 5.2 1990 -8.3 -5.7 -1.4 3.3 7.3 12.5 15.1 14.8 11.3 6.5 3.8 -3.1 4.7 1991 -6.4 -6.2 -1.2 5.2 7.5 11.7 14.9 15.4 10.4 8.3 1.0 -3.3 4.8 1992 -7.7 -5.7 -3.2 2.9 6.0 11.0 15.0 12.8 10.1 6.2 2.4 -3.4 3.9 1993 -8.5 -7.6 -2.9 4.1 8.1 11.2 14.6 14.2 10.8 4.3 -3.2 -3.0 3.5 1994 -2.1 -4.8 0.6 5.6 8.6 11.5 14.3 15.8 9.6 6.7 2.8 -4.5 5.3 1995 -1.5 -2.4 0.0 5.0 8.3 11.4 15.4 15.9 11.0 5.3 2.1 -3.8 5.6 1996 -5.7 -2.9 -1.2 3.6 9.7 11.3 15.7 15.2 12.1 6.7 0.5 1.7 5.6 1997 -4.3 -7.7 -4.8 3.9 7.9 12.6 16.2 16.5 10.2 8.3 1.5 -2.0 4.9 1998 -6.6 -7.3 0.4 5.8 8.7 14.0 15.6 16.2 11.8 7.0 3.9 0.1 5.8 1999 -1.8 -1.6 -0.6 3.7 7.1 11.4 14.5 17.4 12.2 6.7 -0.2 0.3 5.8 2000 -4.6 -4.2 -2.3 6.3 8.1 11.5 16.1 16.0 12.7 6.1 0.8 -0.4 5.5 MEAN -6.8 -6.0 -1.7 3.4 7.1 10.5 13.3 13.0 9.7 5.4 0.5 -3.7 3.7 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 -1.6 5.0 11.7 12.8 23.5 27.8 28.4 26.6 24.1 20.2 15.2 6.0 16.6 1965 1.7 5.2 12.4 15.5 24.0 26.6 28.6 31.2 25.5 15.7 15.1 11.2 17.7 1966 11.2 11.0 12.8 17.3 20.2 27.9 30.2 30.1 23.2 17.7 15.3 11.2 19.0 1967 6.8 2.5 8.0 13.8 22.3 24.9 26.4 28.1 24.2 20.2 12.6 8.3 16.5 1968 5.5 5.9 11.5 16.1 21.9 23.9 29.5 29.2 28.1 20.6 13.3 7.0 17.7 1969 1.0 2.1 10.0 13.7 22.8 28.7 27.1 29.3 23.9 17.6 12.5 10.3 16.6 1970 4.9 9.9 11.4 18.4 22.6 26.4 28.5 27.9 22.6 19.9 15.4 4.6 17.7 1971 3.5 1.1 11.7 12.9 21.2 25.2 29.7 29.4 29.9 23.0 16.0 6.7 17.5 1972 1.3 0.7 4.5 19.0 18.6 25.8 29.1 28.5 27.8 24.1 14.5 1.4 16.3 1973 2.4 8.9 11.0 15.5 21.2 24.1 29.5 28.5 25.2 23.4 12.6 8.4 17.5 1974 0.4 0.3 8.9 16.1 24.8 28.0 28.3 27.3 25.0 20.8 12.3 7.3 16.6 1975 4.4 4.8 11.5 17.9 23.1 27.5 32.7 25.4 19.7 19.1 10.6 4.2 16.8 1976 5.6 2.4 9.4 14.8 19.6 26.3 29.0 32.5 25.2 22.2 13.1 6.1 17.2 1977 0.2 9.5 15.5 16.0 19.5 27.6 27.6 29.3 25.8 17.0 13.2 6.5 17.3 1978 6.4 11.1 15.9 18.8 21.6 24.9 30.7 27.8 28.4 22.5 7.8 8.6 18.7 1979 7.0 9.1 10.4 17.8 20.4 23.6 29.2 29.9 27.7 21.6 18.8 12.3 19.0 1980 5.2 6.7 11.0 18.6 23.4 28.2 31.6 27.7 26.0 21.0 17.3 12.3 19.1 1981 8.8 9.3 14.4 16.9 21.3 24.2 28.6 27.5 27.2 22.3 15.7 12.7 19.1 1982 6.4 4.0 10.6 21.3 21.6 25.6 28.5 26.4 25.5 17.6 7.7 ****** ****** 1983 1.5 5.9 9.3 17.9 22.2 25.9 30.6 28.3 24.8 21.3 15.8 9.2 17.7 1984 9.2 2.4 10.9 20.1 19.5 26.1 31.7 28.1 25.1 17.4 13.7 1.0 17.1 1985 7.8 3.8 5.8 21.2 23.0 28.6 27.9 30.1 28.6 ****** 14.3 ****** ****** 1986 4.9 4.9 5.6 14.6 19.4 22.7 28.6 28.5 26.9 18.1 7.5 2.7 15.4 1987 8.2 8.0 8.2 16.1 24.6 27.4 28.9 27.8 24.1 10.5 12.5 6.0 16.9 1988 1.5 3.3 10.0 15.9 20.2 26.1 26.6 24.7 22.8 17.9 11.9 7.0 15.7 1989 -1.6 1.2 11.1 20.3 22.7 27.7 29.9 28.9 24.6 19.2 11.2 7.0 16.8 1990 -0.1 2.7 8.7 14.1 19.8 27.9 27.9 25.8 26.8 18.6 16.0 6.0 16.2 1991 2.9 3.7 7.7 18.2 20.2 24.4 28.8 27.2 24.5 19.2 11.7 3.7 16.0 1992 0.8 3.4 6.0 14.7 16.5 23.4 26.8 25.1 23.0 20.9 12.6 3.6 14.7 1993 -0.6 -0.4 6.6 15.1 19.6 24.1 26.5 27.4 25.4 18.1 3.3 4.4 14.1 1994 5.7 3.5 9.7 18.7 20.6 23.4 26.0 26.6 23.4 18.0 10.7 2.8 15.8 1995 6.5 7.7 12.7 16.3 22.3 25.9 27.1 29.0 24.9 17.5 13.9 4.8 17.4 1996 2.5 5.9 7.0 14.3 22.4 24.8 29.1 28.7 26.8 18.4 11.2 9.7 16.7 1997 4.5 1.6 5.0 17.2 22.2 26.3 26.8 28.4 22.3 21.7 11.8 6.6 16.2 1998 0.8 1.5 10.3 18.5 21.4 27.9 28.7 29.3 24.3 19.8 15.0 10.1 17.3 1999 6.5 9.8 11.6 15.0 21.2 26.6 27.8 31.4 23.6 19.5 9.9 10.1 17.8 2000 3.5 4.7 8.8 20.0 21.7 26.0 30.9 29.4 24.3 15.0 9.6 6.8 16.7 MEAN 3.9 4.9 9.9 16.8 21.4 26.0 28.8 28.3 25.2 19.4 12.7 7.0 17.0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 12.5 9.1 11.3 10.4 15.7 15.6 14.3 13.3 14.2 16.6 14.3 9.7 13.1 1965 8.8 9.9 12.4 13.0 16.5 15.7 16.4 19.5 17.1 13.3 14.4 19.0 14.7 1966 10.2 12.6 13.5 14.2 13.8 16.4 22.0 20.6 13.3 12.0 19.2 18.1 15.5 1967 10.9 9.5 9.6 12.0 15.0 16.3 14.9 17.2 15.7 14.7 10.9 11.8 13.2 1968 12.1 12.5 13.7 14.5 14.1 14.7 17.8 17.7 19.6 15.5 10.9 9.2 14.4 1969 8.4 9.9 10.4 11.1 14.9 18.0 15.9 20.5 17.3 11.9 10.3 11.2 13.3 1970 12.8 13.0 10.7 13.5 15.1 17.6 17.8 15.1 14.7 17.0 12.7 7.0 13.9 1971 8.0 5.4 9.9 10.6 13.8 18.7 19.7 18.9 20.6 19.1 14.1 10.8 14.1 1972 11.9 12.9 7.9 12.4 10.7 14.5 15.2 18.1 17.3 17.2 13.2 12.6 13.7 1973 15.6 12.0 13.7 12.4 18.4 18.4 20.5 20.2 17.0 15.9 16.6 13.4 16.2 1974 14.6 14.8 11.9 14.0 19.6 19.4 17.6 18.8 16.9 16.4 13.1 13.5 15.9 1975 10.1 12.3 13.9 14.9 15.4 17.5 20.5 16.5 12.8 15.3 11.9 9.6 14.2 1976 11.6 13.5 12.6 13.3 14.0 17.1 19.1 20.5 17.1 15.2 13.1 12.7 15.0 1977 14.1 14.4 13.1 13.4 15.2 16.8 15.9 18.0 17.0 16.4 15.9 13.1 15.3 1978 12.6 15.4 16.8 16.8 15.5 17.0 20.7 15.9 20.2 16.5 13.1 10.6 15.9 1979 12.4 13.7 14.0 16.4 15.7 15.0 16.0 12.9 16.0 16.1 17.1 15.5 15.1 1980 14.2 12.7 13.1 15.8 16.2 18.0 16.5 14.2 14.1 14.5 15.9 14.7 15.0 1981 12.9 14.4 16.2 17.0 16.1 14.2 14.2 14.1 18.2 17.8 15.4 14.4 15.4 1982 15.5 14.0 16.6 17.5 14.6 14.7 14.7 15.7 20.6 15.1 12.3 ****** ****** 1983 11.8 13.0 13.7 16.8 16.3 15.2 17.6 16.3 16.7 19.3 14.4 13.8 15.4 1984 16.1 12.5 13.9 17.8 16.2 19.9 18.6 16.6 15.8 14.3 14.9 12.8 15.8 1985 18.8 12.9 15.5 17.5 15.5 17.9 16.7 18.7 20.2 ****** 15.0 ****** ****** 1986 8.3 8.0 8.7 8.6 11.5 12.1 12.9 13.7 15.5 10.2 5.7 7.2 10.2 1987 8.6 9.5 9.1 13.6 14.8 14.4 14.0 13.2 13.9 7.0 10.8 6.7 11.3 1988 6.1 7.2 9.1 11.0 12.1 14.1 11.8 10.2 11.4 10.5 10.1 8.0 10.1 1989 8.1 10.7 10.0 14.3 14.7 15.2 12.4 12.8 13.5 11.2 7.6 9.0 11.6 1990 8.2 8.4 10.1 10.8 12.5 15.4 12.8 11.0 15.5 12.1 12.2 9.1 11.5 1991 9.3 9.9 8.9 13.0 12.7 12.7 13.9 11.8 14.1 10.9 10.7 7.0 11.2 1992 8.5 9.1 9.2 11.8 10.5 12.4 11.8 12.3 12.9 14.7 10.2 7.0 10.9 1993 7.9 7.2 9.5 11.0 11.5 12.9 11.9 13.2 14.6 13.8 6.5 7.4 10.6 1994 7.8 8.3 9.1 13.1 12.0 11.9 11.7 10.8 13.8 11.3 7.9 7.3 10.4 1995 8.0 10.1 12.7 11.3 14.0 14.5 11.7 13.1 13.9 12.2 11.8 8.6 11.8 1996 8.2 8.8 8.2 10.7 12.7 13.5 13.4 13.5 14.7 11.7 10.7 8.0 11.2 1997 8.8 9.3 9.8 13.3 14.3 13.7 10.6 11.9 12.1 13.4 10.3 8.6 11.3 1998 7.4 8.8 9.9 12.7 12.7 13.9 13.1 13.1 12.5 12.8 11.1 10.0 11.5 1999 8.3 11.4 12.2 11.3 14.1 15.2 13.3 14.0 11.4 12.8 10.1 9.8 12.0 2000 8.1 8.9 11.1 13.7 13.6 14.5 14.8 13.4 11.6 8.9 8.8 7.2 11.2 MEAN 10.7 11.0 11.7 13.4 14.4 15.5 15.5 15.3 15.5 14.0 12.2 10.7 13.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 1.32 2.97 4.42 4.92 7.62 10.11 10.80 10.53 8.60 5.37 4.19 3.03 6.16 1965 1.62 2.56 4.81 4.84 6.70 8.79 9.83 9.51 8.48 5.83 4.02 3.01 5.83 1966 4.14 3.74 3.90 5.77 7.22 9.24 8.30 9.12 8.83 6.78 4.64 3.59 6.27 1967 3.18 1.98 3.66 4.67 7.20 8.13 9.42 9.68 8.06 6.26 5.03 3.52 5.90 1968 3.04 2.68 3.62 5.10 7.27 8.27 9.07 9.43 7.34 6.34 5.00 3.55 5.89 1969 2.59 1.87 4.23 5.09 7.42 8.82 9.13 8.51 7.27 6.40 5.15 4.76 5.94 1970 3.53 4.32 4.55 5.55 6.58 7.53 7.84 9.48 7.33 5.43 4.47 3.65 5.85 1971 3.22 3.07 5.06 5.46 7.99 7.04 7.00 6.69 6.46 5.34 4.58 3.32 5.44 1972 2.43 2.27 3.54 7.94 7.15 9.65 9.66 8.18 7.52 6.52 4.67 2.23 5.98 1973 2.01 3.64 3.66 5.33 5.52 7.62 9.11 8.84 7.75 7.66 3.38 3.00 5.63 1974 1.80 1.71 3.77 4.84 5.96 8.07 9.44 8.20 7.81 5.73 4.02 2.58 5.33 1975 2.62 2.33 3.45 4.89 7.62 8.84 10.47 7.92 6.92 5.55 3.72 2.62 5.58 1976 2.56 1.80 3.50 4.70 6.43 8.23 9.07 9.80 7.47 6.99 4.04 2.26 5.57 1977 1.32 2.84 4.47 4.77 5.31 9.28 9.93 9.66 7.85 4.35 3.60 2.60 5.50 1978 2.56 2.79 3.80 4.56 6.89 7.41 8.30 8.95 7.16 6.26 2.68 3.82 5.43 1979 3.13 3.05 3.95 5.08 6.18 8.12 11.82 15.45 11.43 6.69 4.70 3.42 6.92 1980 2.04 2.71 3.85 5.05 7.09 8.48 12.21 10.89 10.18 7.16 5.01 3.61 6.52 1981 3.11 2.83 3.99 4.36 6.20 8.65 11.56 11.02 8.23 5.94 4.20 3.91 6.17 1982 2.38 1.82 2.85 5.70 7.15 8.92 11.45 9.06 ****** 4.93 2.94 ****** ****** 1983 ****** ****** 3.16 4.63 6.44 9.43 10.58 10.24 7.82 4.85 4.93 3.02 ****** 1984 2.58 1.48 3.47 4.84 5.47 6.70 11.19 10.11 8.88 5.75 4.20 1.23 5.49 1985 1.49 2.22 2.38 5.37 7.71 9.48 9.65 9.87 8.49 ****** 3.92 ****** ****** 1986 2.66 2.95 2.98 5.41 6.46 8.33 9.95 8.77 6.94 6.73 4.23 2.46 5.66 1987 2.73 3.22 3.32 4.19 6.75 7.74 8.04 9.23 7.10 5.01 3.36 3.23 5.33 1988 2.39 2.47 3.42 4.92 6.50 8.84 9.99 9.95 7.55 6.22 3.39 3.15 5.73 1989 1.91 1.87 4.32 5.05 6.24 8.00 9.40 9.25 7.84 6.23 4.87 3.31 5.69 1990 2.32 2.75 3.46 4.94 6.43 8.21 8.63 9.59 7.28 6.06 3.95 3.05 5.56 1991 2.56 2.67 3.83 5.43 6.43 8.77 8.88 9.27 7.09 6.43 4.42 3.20 5.75 1992 2.34 2.88 3.21 4.56 6.26 9.11 9.33 8.06 7.26 4.41 3.95 3.15 5.38 1993 2.12 2.20 2.94 4.59 7.09 8.88 9.18 9.00 7.55 4.65 3.30 2.90 5.37 1994 2.86 2.38 3.58 5.54 7.46 8.67 8.77 9.67 6.05 6.17 4.43 2.67 5.69 1995 3.08 3.21 3.66 5.27 6.54 8.36 8.79 9.81 7.91 5.00 3.17 2.55 5.61 1996 2.57 3.03 3.60 4.71 7.73 7.23 9.31 8.50 7.54 5.27 3.92 3.70 5.59 1997 2.38 2.03 2.65 4.17 6.53 9.37 10.64 9.44 7.24 5.44 3.94 2.90 5.56 1998 2.39 2.18 3.51 5.01 7.14 8.47 8.67 9.45 8.23 5.37 4.39 3.34 5.68 1999 3.07 2.64 3.39 4.80 7.16 7.68 7.64 10.45 8.86 5.68 3.74 3.04 5.68 2000 2.51 2.40 3.04 5.22 6.51 6.99 7.93 8.41 8.93 6.05 4.04 3.34 5.45 MEAN 2.52 2.60 3.65 5.07 6.77 8.42 9.49 9.46 7.87 5.86 4.12 3.11 5.74 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 2.73 3.68 5.20 5.70 9.88 13.82 13.08 12.68 10.77 7.06 5.03 3.53 7.76 1965 3.53 3.70 4.76 5.04 7.22 9.27 10.18 14.10 10.61 6.98 5.08 3.72 7.02 1966 3.95 3.76 4.69 5.74 8.13 12.10 11.00 11.28 9.44 7.92 5.81 4.61 7.37 1967 4.07 3.25 3.96 5.16 8.34 9.23 10.22 10.30 8.81 7.02 5.21 3.56 6.59 1968 3.30 3.46 4.29 5.99 6.99 8.87 11.15 9.89 7.92 7.07 5.47 3.77 6.51 1969 3.07 3.67 4.79 5.72 8.04 9.57 9.71 9.25 7.84 6.41 6.71 7.15 6.83 1970 5.51 7.31 7.48 6.14 6.90 7.03 7.88 9.51 9.56 5.73 4.89 4.27 6.85 1971 4.90 3.93 7.24 7.97 9.42 11.50 8.06 5.95 7.88 6.71 4.75 3.92 6.85 1972 2.81 3.26 4.52 9.84 7.45 8.96 9.31 8.22 5.73 7.45 5.33 2.83 6.31 1973 3.70 4.95 4.40 6.99 7.89 9.67 10.64 11.83 8.32 9.91 5.38 4.18 7.32 1974 2.46 2.42 5.16 6.09 8.19 11.12 12.56 13.41 9.75 9.24 5.25 3.82 7.46 1975 3.53 3.64 4.31 6.72 8.92 11.43 15.43 12.93 9.57 6.89 4.37 3.66 7.62 1976 3.78 2.96 4.70 6.30 8.87 13.80 14.50 15.23 11.31 9.84 5.52 3.49 8.36 1977 2.46 3.95 6.69 7.24 8.25 13.97 14.23 13.91 11.23 6.13 5.39 3.58 8.08 1978 3.57 3.81 5.03 7.00 8.08 10.04 10.10 9.59 8.61 7.71 3.93 5.49 6.91 1979 4.36 4.66 5.60 7.29 10.07 12.71 16.85 18.67 16.92 10.96 8.01 5.46 10.13 1980 3.29 4.73 6.24 6.44 9.22 9.06 12.06 10.45 10.77 8.33 6.15 4.38 7.59 1981 4.22 4.11 5.27 6.18 7.36 10.51 11.34 11.03 9.87 9.57 6.02 4.48 7.50 1982 3.50 3.15 4.43 7.16 8.90 8.98 11.60 9.47 11.65 6.87 3.70 ****** ****** 1983 ****** 4.76 5.25 5.66 9.41 10.68 12.70 10.22 8.59 7.94 7.17 4.12 ****** 1984 4.34 2.83 4.97 5.39 6.41 8.84 10.83 11.92 13.10 7.89 5.51 3.19 7.10 1985 4.07 3.33 3.93 8.64 11.10 13.87 13.39 14.19 11.03 ****** 4.98 ****** ****** 1986 2.94 3.18 3.27 5.47 6.67 8.32 10.41 9.29 7.13 6.86 4.25 2.83 5.88 1987 2.88 3.64 3.48 4.24 6.43 7.23 8.42 9.29 7.02 5.15 3.46 3.54 5.40 1988 2.84 2.60 3.39 5.10 5.83 7.15 9.32 9.21 7.23 6.38 3.43 3.46 5.49 1989 2.36 2.65 4.34 4.86 5.61 7.17 9.21 9.44 7.62 6.71 5.36 3.43 5.73 1990 2.68 3.21 3.52 5.00 5.82 6.92 8.63 10.00 8.18 6.25 4.10 3.43 5.65 1991 2.95 2.76 4.00 5.08 5.92 8.29 8.47 9.05 7.29 6.46 4.80 3.52 5.71 1992 2.63 3.24 3.32 4.51 5.73 8.22 9.10 7.60 6.86 4.31 4.19 3.19 5.24 1993 2.63 2.69 3.02 4.19 6.34 7.80 8.77 8.33 6.93 4.51 3.46 3.49 5.18 1994 2.97 2.40 3.57 5.47 7.36 8.21 8.22 9.58 6.09 6.04 4.43 2.96 5.61 1995 3.33 3.36 3.59 5.34 5.91 7.49 8.55 10.10 9.10 4.74 3.12 2.53 5.60 1996 2.72 3.01 3.65 4.43 7.14 6.98 8.91 8.78 7.12 5.34 4.14 3.58 5.48 1997 2.46 2.31 2.71 3.39 6.11 8.56 9.82 9.33 6.81 5.25 4.00 3.09 5.32 1998 2.88 2.48 3.24 4.78 6.65 8.24 8.02 9.48 7.91 5.04 4.57 3.47 5.56 1999 2.89 2.57 3.20 4.65 6.96 7.10 7.32 9.73 8.16 5.44 3.76 3.12 5.41 2000 2.64 2.55 2.90 4.66 5.89 7.06 7.80 8.73 9.92 5.87 4.06 3.29 5.45 MEAN 3.31 3.46 4.44 5.83 7.56 9.46 10.49 10.60 8.99 6.89 4.89 3.78 6.64 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 1.90 3.44 5.24 5.72 9.89 12.78 12.40 11.84 9.44 6.56 4.46 3.60 7.27 1965 2.19 3.16 4.87 5.57 7.09 9.55 10.50 9.98 9.71 6.36 4.71 3.05 6.40 1966 4.07 3.67 4.49 5.54 8.18 9.00 9.94 10.46 9.29 7.64 5.40 4.22 6.83 1967 3.35 3.02 4.14 5.19 8.29 8.70 10.10 10.11 8.38 6.95 5.19 3.49 6.41 1968 3.27 2.92 3.74 5.83 7.28 9.03 9.92 9.86 7.64 7.16 5.66 3.88 6.35 1969 2.96 2.71 4.64 5.54 8.08 8.90 8.91 8.70 7.89 6.80 5.93 5.63 6.39 1970 4.32 5.86 6.50 6.39 7.24 6.92 7.80 9.48 6.94 5.48 4.76 3.83 6.29 1971 4.18 3.45 6.50 6.80 10.76 8.99 6.89 6.38 7.89 7.33 5.22 3.44 6.49 1972 2.73 2.95 3.98 10.27 7.81 9.85 8.70 8.39 8.59 7.09 4.89 2.60 6.49 1973 2.85 4.70 4.34 6.10 7.18 8.92 10.59 10.10 7.84 7.36 4.39 3.70 6.51 1974 2.31 2.17 4.36 5.28 6.26 8.94 8.83 9.58 8.32 6.57 4.26 3.04 5.83 1975 2.80 2.93 4.04 5.79 8.23 8.86 11.74 11.03 8.40 6.48 3.90 2.61 6.40 1976 3.54 2.50 4.17 5.68 7.70 12.17 12.71 12.35 9.85 8.42 4.75 2.80 7.22 1977 1.56 3.89 6.37 6.35 6.95 11.27 11.13 11.40 9.27 5.35 4.90 2.93 6.78 1978 3.25 3.60 4.44 5.66 7.24 8.69 8.81 9.01 7.71 7.25 3.67 4.65 6.16 1979 3.53 4.02 4.83 6.21 8.33 10.96 14.99 16.57 14.61 9.48 7.91 5.87 8.94 1980 2.44 3.94 4.90 6.58 8.43 7.37 10.31 10.35 9.96 8.76 6.48 4.46 7.00 1981 3.85 4.02 4.90 5.96 6.82 9.82 10.68 11.10 9.58 8.64 5.54 4.27 7.10 1982 3.16 2.21 4.08 7.11 7.53 9.19 10.94 8.89 10.67 6.15 3.38 ****** ****** 1983 ****** 3.45 4.34 5.34 7.75 9.84 11.64 9.75 8.12 6.86 5.89 3.73 ****** 1984 3.75 1.91 4.45 4.54 6.43 8.34 10.04 10.77 11.28 6.52 4.62 1.90 6.21 1985 3.44 2.28 3.48 6.78 9.84 12.48 12.25 11.89 9.97 ****** 3.99 ****** ****** 1986 2.93 3.10 3.23 5.86 6.29 8.52 10.41 8.47 7.19 6.86 4.48 2.65 5.83 1987 2.87 3.59 3.30 4.16 6.28 7.71 8.82 9.44 7.10 5.14 3.54 3.53 5.46 1988 2.73 2.52 3.42 5.07 6.70 7.44 9.88 9.72 7.33 6.61 3.52 3.40 5.70 1989 2.22 2.32 4.42 4.94 5.98 7.99 10.11 9.89 7.93 6.62 5.18 3.37 5.91 1990 2.46 3.18 3.86 5.01 5.85 7.51 9.34 10.30 8.18 6.46 4.06 3.42 5.80 1991 2.82 2.90 4.16 4.76 5.96 8.52 8.70 9.43 7.32 6.53 4.95 3.45 5.79 1992 2.60 3.11 3.52 4.61 6.34 8.87 9.83 8.25 7.29 4.55 4.28 3.20 5.54 1993 2.52 2.71 3.28 4.32 6.36 7.74 8.89 8.75 6.87 4.68 3.35 3.38 5.24 1994 3.05 2.56 3.86 5.77 7.29 8.04 8.86 10.08 5.81 6.08 4.61 2.89 5.74 1995 3.54 3.52 3.62 5.70 6.31 8.02 9.17 10.36 9.14 5.24 3.15 2.63 5.87 1996 2.80 3.08 3.82 4.62 7.39 7.26 8.90 9.08 6.72 5.36 4.28 3.94 5.60 1997 2.54 2.25 2.84 3.50 6.35 8.86 10.18 9.26 6.94 5.41 4.33 3.19 5.47 1998 2.63 2.50 3.49 4.70 7.10 8.04 8.51 9.73 8.01 5.36 4.33 3.62 5.67 1999 3.13 2.53 3.30 4.80 6.57 7.56 8.17 9.81 8.70 5.69 3.97 3.19 5.62 2000 2.85 2.91 3.03 4.70 6.17 7.53 8.93 9.46 10.02 6.00 4.33 3.46 5.78 MEAN 2.98 3.13 4.22 5.59 7.31 8.93 9.97 10.01 8.54 6.56 4.66 3.52 6.28 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 -22.0 23 -9.5 16 -8.5 12 -2.0 13 1.5 2 8.5 20 11.5 16 9.5 28 5.0 19 -1.0 8 -10.5 27 -13.5 26 -22.0 1965 -12.0 18 -15.0 17 -7.0 16 -7.0 5 3.5 4 8.0 11 9.5 9 10.0 9 3.0 30 -9.5 29 -5.0 20 -20.0 25 -20.0 1966 -3.0 10 -7.5 7 -7.0 1 -8.0 1 1.5 3 5.0 15 2.5 30 7.0 15 6.5 18 1.5 18 -9.5 30 -12.5 27 -12.5 1967 -10.4 26 -18.5 3 -9.0 1 -6.5 1 2.5 7 1.5 5 8.5 2 6.5 29 5.0 30 1.0 15 -9.0 30 -17.5 24 -18.5 1968 -15.0 23 -22.0 6 -8.5 15 -4.5 3 2.5 1 4.5 8 7.5 15 6.5 26 4.5 8 0.0 28 -1.5 19 -6.0 13 -22.0 1969 -18.5 8 -13.5 4 -8.0 24 -1.5 3 1.0 7 4.5 1 7.0 6 6.0 13 1.5 28 -6.5 30 -3.0 15 -12.0 23 -18.5 1970 -10.0 6 -9.0 25 -7.0 11 -1.5 22 3.5 4 3.3 11 7.0 8 8.0 30 2.0 27 -0.5 8 -2.5 21 -8.0 15 -10.0 1971 -14.5 30 -15.0 14 -4.5 8 -6.3 3 4.5 2 2.5 20 4.5 13 6.0 5 6.5 9 -1.5 28 -1.0 20 -13.0 28 -15.0 1972 -20.0 18 -27.5 7 -11.0 14 -4.5 3 3.5 10 8.5 17 9.0 23 6.5 29 8.0 18 1.0 26 -5.5 29 -21.5 25 -27.5 1973 -25.0 26 -12.5 23 -11.5 13 -1.0 1 0.2 5 2.0 3 2.5 17 4.0 22 4.0 1 2.0 11 -18.5 7 -15.5 25 -25.0 1974 -21.5 21 -23.5 16 -13.5 19 -6.5 7 0.5 3 4.5 4 5.5 9 4.5 5 4.0 18 -4.5 20 -8.5 26 -13.0 20 -23.5 1975 -11.5 16 -14.0 23 -8.0 1 -9.0 2 3.5 7 6.5 7 8.0 2 4.0 8 3.0 27 -1.5 30 -9.0 7 -15.5 4 -15.5 1976 -13.5 1 -20.0 17 -16.5 2 -11.5 2 1.5 1 3.5 9 5.0 4 8.0 14 5.5 21 2.5 28 -7.0 29 -10.5 22 -20.0 1977 -22.0 8 -10.5 13 -5.0 10 0.5 19 1.5 2 4.5 4 7.5 30 6.5 19 0.5 30 -11.5 23 -8.5 10 -16.5 25 -22.0 1978 -13.0 14 -13.5 26 -6.5 20 -3.5 14 0.5 7 0.5 2 5.0 4 7.5 20 4.5 6 1.5 11 -11.5 22 -6.5 24 -13.5 1979 -12.5 26 -13.5 27 -13.5 5 -3.0 28 -2.0 3 5.5 10 9.0 5 11.0 28 3.5 27 1.0 28 -3.0 23 -8.5 22 -13.5 1980 -19.0 31 -13.5 1 -11.5 7 -8.0 16 4.5 1 7.5 3 11.5 3 9.0 21 10.0 11 1.0 30 -1.5 23 -7.0 20 -19.0 1981 -8.5 1 -8.0 24 -8.5 1 -10.0 3 2.0 17 6.0 9 11.5 26 10.0 27 3.5 23 1.0 23 -5.5 23 -5.0 31 -10.0 1982 -18.5 21 -18.0 19 -14.0 27 -3.5 1 4.0 19 7.0 14 10.0 25 9.0 10 3.0 18 -1.5 7 -13.5 30 ***** ** ***** 1983 -19.0 8 -13.0 11 -14.0 7 -4.5 1 2.0 1 8.0 1 10.0 1 8.0 29 2.5 28 -2.0 25 -6.0 26 -12.0 18 -19.0 1984 -15.0 29 -19.0 6 -11.0 1 -1.0 1 -2.5 2 3.0 1 6.5 1 5.5 12 6.0 22 -4.0 22 -6.0 29 -15.0 9 -19.0 1985 -15.0 1 -19.5 23 -23.0 3 1.0 8 4.0 15 6.5 15 8.5 1 8.5 11 4.0 25 ***** ** -3.5 30 ***** ** ***** 1986 -16.2 21 -13.0 11 -13.2 3 1.0 5 4.2 6 4.8 22 11.2 22 10.6 6 6.0 30 2.4 25 -4.2 30 -14.0 12 -16.2 1987 -5.0 22 -6.8 7 -7.0 15 -4.6 21 4.6 6 10.6 1 9.4 4 8.0 30 4.0 24 -2.5 28 -10.6 29 -10.0 28 -10.6 1988 -14.8 20 -9.8 4 -5.4 6 -3.4 6 0.4 3 9.0 18 9.2 28 10.0 30 7.0 22 1.6 24 -5.0 14 -14.8 29 -14.8 1989 -17.0 30 -20.0 3 -7.0 31 1.2 30 3.0 1 6.0 11 14.6 31 12.0 20 4.0 22 3.0 22 -8.0 22 -8.5 5 -20.0 1990 -18.0 9 -18.2 5 -12.4 18 -11.0 4 1.0 4 9.0 18 9.0 7 11.6 3 6.0 22 -1.0 15 -4.0 14 -18.0 27 -18.2 1991 -19.0 25 -14.5 13 -17.5 11 -0.6 13 3.0 7 6.0 8 9.4 12 11.0 14 4.2 27 4.4 17 -5.0 18 -11.6 19 -19.0 1992 -16.2 25 -15.6 29 -10.0 1 -1.5 19 -4.0 5 8.2 7 8.0 11 7.4 12 6.0 28 0.0 15 -5.0 26 -17.0 27 -17.0 1993 -15.0 17 -20.5 17 -11.0 23 -9.5 23 1.0 9 6.0 22 10.6 6 9.4 25 4.2 25 0.0 9 -16.6 30 -15.0 1 -20.5 1994 -8.5 24 -13.6 19 -3.6 3 0.0 3 4.0 7 6.0 30 10.4 3 12.2 26 5.0 20 2.8 12 -4.0 7 -19.0 6 -19.0 1995 -10.5 23 -9.2 6 -4.0 3 -1.2 6 3.6 11 7.0 1 10.6 3 12.2 21 6.0 30 0.0 20 -7.0 28 -11.0 18 -11.0 1996 -18.6 14 -18.6 3 -8.0 1 -5.2 5 5.0 7 6.4 14 11.2 16 12.3 17 7.2 21 -0.6 29 -5.6 17 -6.4 1 -18.6 1997 -14.0 29 -17.6 6 -17.0 9 -4.8 12 2.0 6 8.4 7 12.2 8 12.4 31 1.5 14 1.6 31 -4.4 26 -14.4 20 -17.6 1998 -12.4 14 -19.8 10 -6.6 2 -3.0 1 1.6 4 10.0 1 11.4 30 13.4 7 7.2 29 0.0 9 -0.2 13 -5.6 28 -19.8 1999 -11.0 2 -9.0 5 -6.0 3 -2.0 9 0.2 21 8.0 5 8.4 15 14.2 20 5.0 28 0.4 31 -11.0 28 -11.0 1 -11.0 2000 -17.4 17 -16.0 8 -14.0 15 1.0 2 3.0 11 3.6 13 13.2 23 11.4 8 8.4 27 2.2 30 -4.8 29 -7.8 24 -17.4 LOW. -25.0 26 -27.5 7 -23.0 3 -11.5 2 -4.0 5 0.5 2 2.5 30 4.0 22 0.5 30 -11.5 23 -18.5 7 -21.5 25 -27.5 YEAR 1973 1972 1985 1976 1992 1978 1966 1973 1977 1977 1973 1972 1972 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 6.0 17 10.0 2 20.0 26 22.5 27 29.5 30 31.5 2 32.5 17 34.0 13 30.0 11 30.5 15 27.5 6 15.5 6 34.0 1965 6.5 6 10.5 28 19.6 10 26.0 26 32.5 20 31.5 8 35.0 16 36.5 13 35.5 7 26.5 12 19.0 17 19.0 8 36.5 1966 18.0 7 18.0 26 21.0 17 24.5 20 27.5 31 35.5 10 39.0 25 34.5 30 31.0 9 22.0 19 26.5 29 16.5 7 39.0 1967 14.5 16 11.5 11 13.5 4 19.0 17 28.0 23 33.5 16 30.0 7 30.5 4 30.5 14 24.0 10 23.5 2 12.5 14 33.5 1968 10.5 13 15.5 29 18.5 8 24.0 14 27.5 19 30.5 18 37.0 20 35.5 16 31.5 21 27.0 18 17.0 25 11.5 1 37.0 1969 8.0 20 11.5 28 18.5 31 25.5 29 31.0 13 34.5 11 36.0 14 35.0 3 32.5 7 32.0 2 17.5 6 15.5 22 36.0 1970 10.0 19 14.5 28 22.5 31 28.3 14 29.5 23 32.0 21 34.5 20 38.0 27 30.0 6 28.5 5 22.0 3 13.0 3 38.0 1971 16.0 5 10.0 20 19.5 25 20.0 28 27.5 6 29.0 3 36.0 26 34.0 18 34.0 8 32.0 1 22.0 4 14.5 2 36.0 1972 24.0 29 6.0 17 14.0 29 26.5 28 28.5 28 31.0 22 32.5 31 33.0 16 36.5 29 30.5 5 28.0 2 5.1 11 36.5 1973 15.5 29 15.5 20 18.0 22 22.5 27 31.0 25 30.0 16 40.0 27 33.0 3 32.5 14 33.0 21 20.5 12 20.0 1 40.0 1974 8.0 2 6.0 13 18.5 1 23.0 26 32.5 22 36.0 22 37.0 2 36.0 2 29.5 8 27.5 4 17.5 18 14.0 2 37.0 1975 8.5 5 13.0 10 20.8 29 28.0 12 31.0 21 37.0 30 38.0 29 34.5 29 28.5 17 25.0 9 19.0 1 12.5 22 38.0 1976 13.5 22 14.5 8 19.0 29 20.5 15 26.5 14 33.0 25 34.5 30 39.5 7 28.5 16 26.5 22 22.0 4 11.0 18 39.5 1977 8.0 31 17.0 24 22.5 2 20.5 30 25.0 30 35.0 11 35.0 8 39.5 24 33.0 23 31.0 3 19.5 7 14.5 4 39.5 1978 14.0 24 20.0 17 23.0 28 27.5 10 29.0 15 35.0 17 37.5 17 34.5 13 35.0 11 27.5 8 20.0 1 11.5 3 37.5 1979 14.0 4 18.0 16 20.0 22 27.0 4 26.5 22 29.5 30 32.0 11 34.5 17 34.0 5 30.0 1 25.0 13 21.0 4 34.5 1980 11.0 4 10.5 22 20.5 29 26.0 25 29.0 21 32.0 29 35.5 31 36.0 19 34.0 6 27.0 1 22.0 5 19.0 5 36.0 1981 13.5 8 13.0 17 23.0 19 26.0 24 31.0 8 27.0 4 33.0 27 32.5 30 33.0 12 28.0 3 22.0 1 19.0 19 33.0 1982 13.5 3 10.5 28 17.0 17 27.5 30 29.5 20 30.0 8 33.0 10 30.5 27 30.0 8 27.0 16 19.0 3 ***** ** ***** 1983 8.5 1 8.0 19 19.5 28 24.0 16 26.0 22 30.5 15 34.5 17 34.5 15 29.0 19 27.0 11 21.0 2 15.0 10 34.5 1984 15.0 4 12.5 11 19.0 23 26.0 8 27.5 27 33.5 30 36.0 10 34.0 28 30.0 2 26.0 3 17.5 5 5.0 17 36.0 1985 15.0 26 14.0 17 16.0 20 29.5 20 30.0 30 35.0 26 33.0 19 34.0 22 35.0 1 ***** ** 21.0 8 ***** ** ***** 1986 9.6 6 12.2 27 14.2 28 22.2 15 26.6 25 27.2 12 35.4 9 32.2 1 32.0 22 24.8 19 19.6 2 10.2 25 35.4 1987 15.2 31 17.4 3 15.0 8 22.6 24 30.2 9 32.5 28 34.4 6 35.0 3 31.6 5 29.0 2 18.4 6 13.0 1 35.0 1988 7.2 31 11.2 29 17.2 30 20.0 16 27.4 18 32.5 13 35.2 13 32.8 28 32.2 8 24.2 26 19.8 3 16.2 9 35.2 1989 4.0 19 11.2 28 17.8 24 25.4 17 30.0 24 32.0 19 34.0 30 35.5 9 35.0 1 27.4 5 18.0 29 13.0 25 35.5 1990 5.2 4 10.7 17 15.8 23 26.0 27 27.0 29 34.2 3 33.0 22 30.0 24 32.5 13 26.2 11 22.5 3 17.0 2 34.2 1991 9.5 7 11.4 25 21.0 30 25.0 21 25.5 21 30.2 30 34.0 5 34.5 1 31.2 18 24.6 6 19.2 1 12.0 1 34.5 1992 6.0 19 10.5 23 16.0 29 23.0 12 28.4 29 29.5 30 34.5 16 34.0 24 29.0 2 25.4 3 20.0 6 12.0 15 34.5 1993 6.4 29 10.0 27 19.0 30 26.4 19 26.4 17 33.4 28 35.0 24 34.0 27 33.4 7 27.0 1 18.4 8 10.2 25 35.0 1994 10.2 3 11.5 27 18.0 29 26.5 21 26.5 28 31.6 16 29.5 20 30.2 16 28.0 17 23.6 14 19.0 3 9.6 2 31.6 1995 13.2 4 13.0 22 20.0 24 21.0 30 27.5 21 33.8 21 31.0 13 36.4 12 31.2 7 28.0 3 19.6 22 13.0 30 36.4 1996 13.0 3 14.8 25 17.2 30 22.2 29 29.0 31 34.0 29 36.4 24 35.8 21 31.6 7 27.0 3 16.4 4 14.6 27 36.4 1997 13.6 6 10.6 18 15.0 31 29.6 26 29.4 28 30.4 12 31.3 27 36.4 12 32.6 1 27.6 18 16.8 10 15.8 8 36.4 1998 4.5 1 10.0 7 18.8 29 28.0 14 29.4 7 35.2 22 33.2 5 38.0 30 33.0 1 27.5 1 20.8 6 20.5 10 38.0 1999 11.0 14 13.2 27 18.0 7 25.0 30 29.6 28 32.2 24 32.5 31 36.6 26 31.2 2 29.5 1 17.4 19 16.4 22 36.6 2000 17.4 1 13.0 24 17.0 19 25.6 14 27.2 31 32.2 20 35.7 28 36.8 3 32.2 7 24.8 11 15.4 12 12.0 30 36.8 HIG. 24.0 29 20.0 17 23.0 28 29.6 26 32.5 20 37.0 30 40.0 27 39.5 7 36.5 29 33.0 21 28.0 2 21.0 4 40.0 YEAR 1972 1978 1978 1997 1965 1975 1973 1976 1972 1973 1972 1979 1973 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 6.0 19 19.5 4 9.2 26 26.4 8 5.8 1 20.0 21 0.0 ** 6.0 17 0.0 ** 3.5 3 3.5 21 7.5 13 26.4 1965 32.5 9 9.8 15 18.0 24 22.0 20 22.4 2 13.4 25 6.2 26 1.5 21 13.5 29 27.2 19 0.0 ** 15.2 29 32.5 1966 6.8 30 13.4 2 29.8 20 12.8 23 23.8 7 8.2 1 0.0 ** 0.0 ** 16.4 14 30.5 9 45.2 7 6.2 19 45.2 1967 8.5 17 5.8 27 15.8 8 12.5 13 20.5 18 9.5 5 1.2 29 0.0 ** 10.7 23 8.8 3 7.5 11 9.5 22 20.5 1968 9.5 26 12.5 2 10.5 30 16.8 16 4.8 26 10.2 14 0.0 ** 5.5 19 0.0 ** 17.5 25 14.4 3 7.5 5 17.5 1969 12.0 28 9.6 20 25.4 8 28.0 2 7.5 20 25.7 15 5.0 5 0.2 5 38.6 11 9.3 21 9.4 1 13.3 27 38.6 1970 7.3 22 0.0 ** 3.0 10 15.0 19 12.0 11 12.0 10 0.8 4 3.0 19 4.0 12 4.0 15 19.0 29 18.7 13 19.0 1971 8.6 16 9.0 28 7.0 15 20.5 24 9.0 28 3.2 19 5.2 20 0.0 ** 0.0 ** 6.0 26 5.5 10 9.0 28 20.5 1972 13.0 22 2.0 19 21.0 4 2.8 15 12.0 13 18.2 13 1.0 1 7.0 15 9.0 9 0.0 ** 10.3 28 13.0 14 21.0 1973 18.0 15 20.0 22 19.0 19 15.0 4 6.0 3 14.0 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 16.0 12 20.0 1974 8.5 25 14.0 25 21.4 20 22.0 28 8.0 29 16.5 10 8.0 16 4.5 25 17.0 3 0.0 ** 0.0 ** 11.5 23 22.0 1975 10.0 11 25.0 22 13.0 18 10.5 21 26.0 6 14.0 14 0.0 ** 0.0 ** 0.0 ** 8.0 2 6.2 30 5.0 24 26.0 1976 9.0 22 20.0 11 10.0 1 24.5 25 47.0 15 28.7 8 1.5 5 0.0 ** 19.0 14 11.0 30 6.4 29 5.0 30 47.0 1977 10.5 7 6.0 6 12.5 18 18.0 17 13.5 26 29.3 20 0.0 ** 2.8 3 5.0 13 13.2 21 22.0 12 14.0 23 29.3 1978 8.5 4 5.5 22 17.4 31 3.4 13 30.0 6 12.5 2 0.0 ** 0.0 ** 9.5 8 10.0 20 11.5 13 12.0 13 30.0 1979 11.0 10 29.0 28 12.0 27 11.0 16 17.0 29 15.0 20 0.0 ** 0.0 ** 0.0 ** 19.0 28 0.0 ** 2.5 15 29.0 1980 20.0 14 6.5 11 6.5 6 9.0 29 12.0 9 12.0 17 0.0 ** 0.0 ** 4.0 22 16.5 29 4.5 19 7.5 12 20.0 1981 5.5 21 16.0 21 12.5 30 24.0 17 15.0 22 22.0 6 0.0 ** 5.0 12 0.0 ** 18.5 8 15.5 30 9.5 29 24.0 1982 20.5 15 8.0 15 15.0 24 20.0 8 11.0 11 31.0 24 17.0 2 0.0 ** 8.0 27 31.0 7 17.0 25 ***** ** ***** 1983 7.0 20 0.0 ** 15.0 6 15.0 23 14.0 23 0.0 ** 0.0 ** 10.0 28 12.0 14 18.0 6 10.5 25 5.0 11 18.0 1984 17.5 28 13.0 13 0.0 ** 0.0 ** 14.5 5 6.0 6 6.5 25 0.0 ** 30.0 8 22.0 19 28.0 29 6.0 24 30.0 1985 18.0 16 28.0 18 7.0 20 5.5 27 23.0 21 19.0 8 0.0 ** 0.0 ** 0.0 ** ***** ** 0.0 ** ***** ** ***** 1986 7.0 15 8.2 6 7.7 1 19.1 3 13.0 17 18.0 10 2.0 26 7.0 23 15.8 30 4.0 7 11.0 29 12.6 2 19.1 1987 0.6 24 4.0 8 6.1 27 7.2 3 11.1 30 11.0 15 0.3 30 14.0 5 0.6 14 14.0 5 13.0 7 25.0 26 25.0 1988 7.0 19 6.2 17 7.0 21 18.0 28 13.0 22 6.2 29 7.6 11 21.5 4 1.0 1 8.0 16 14.3 10 11.0 27 21.5 1989 5.0 3 4.0 2 10.3 29 6.0 13 10.0 5 5.0 10 0.0 ** 5.0 14 20.0 15 34.0 29 6.0 11 4.7 4 34.0 1990 10.0 6 3.1 2 12.9 6 14.0 29 9.0 13 4.0 17 0.0 ** 0.0 ** 0.0 ** 10.0 14 2.0 13 11.0 22 14.0 1991 4.3 23 8.0 27 11.0 6 16.0 12 13.0 24 23.0 7 3.0 2 1.0 12 0.0 ** 9.2 15 12.0 3 11.0 9 23.0 1992 5.5 16 7.0 24 11.2 24 7.0 22 19.0 21 9.0 6 5.0 11 3.0 11 3.0 15 9.1 15 15.0 11 14.1 26 19.0 1993 7.2 8 16.0 2 8.0 18 13.2 20 14.0 31 10.3 3 9.0 11 17.0 7 0.0 ** 12.0 31 23.0 11 6.6 8 23.0 1994 8.0 2 3.3 14 12.6 12 17.2 30 16.4 13 11.3 27 0.0 ** 0.0 ** 6.0 28 14.0 15 30.0 5 5.1 4 30.0 1995 10.0 17 9.0 5 13.0 17 12.8 4 6.5 4 14.4 4 1.6 1 0.0 ** 9.0 20 7.0 12 1.0 10 1.3 13 14.4 1996 7.0 6 9.0 11 14.7 8 24.0 9 15.0 11 4.0 4 8.0 7 1.0 29 5.0 22 22.1 15 16.0 7 4.0 11 24.0 1997 14.1 16 11.7 24 11.0 6 7.2 11 11.0 24 15.0 22 5.0 5 0.6 9 28.0 14 4.0 28 6.0 5 6.0 11 28.0 1998 6.0 27 13.0 8 11.9 17 8.2 30 17.0 12 9.0 1 9.2 31 0.0 ** 14.0 26 26.5 9 14.3 23 5.4 24 26.5 1999 4.7 17 2.0 3 16.0 17 13.7 8 18.2 14 5.0 15 0.9 13 11.0 7 11.0 26 25.0 12 8.2 26 2.0 16 25.0 2000 14.3 16 6.7 7 11.0 24 9.0 26 7.3 9 1.8 1 0.6 8 0.0 ** 13.2 29 14.2 24 29.4 1 6.0 22 29.4 HIG. 32.5 9 29.0 28 29.8 20 28.0 2 47.0 15 31.0 24 17.0 2 21.5 4 38.6 11 34.0 29 45.2 7 25.0 26 47.0 YEAR 1965 1979 1966 1969 1976 1982 1982 1988 1969 1989 1966 1987 1976 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1964 6.0 35.2 18.3 112.2 17.3 59.4 0.0 10.5 0.0 6.0 3.5 7.5 275.9 21.6 68.5 3.8 6.2 1965 61.4 20.9 36.1 33.4 34.5 33.1 10.0 1.5 34.0 119.6 0.0 24.6 409.1 28.9 24.7 11.1 35.2 1966 16.8 13.4 57.2 35.4 74.5 8.7 0.0 0.0 51.7 84.8 51.8 6.2 400.5 21.8 29.6 12.9 35.7 1967 19.3 21.1 52.1 59.0 79.4 15.0 1.2 0.0 19.0 23.0 27.7 15.5 332.3 27.8 46.2 6.1 19.9 1968 22.0 22.1 31.5 68.5 23.3 50.2 0.0 5.5 0.0 38.3 57.2 31.5 350.1 21.6 40.6 1.6 36.3 1969 35.3 25.8 111.4 99.7 28.3 65.8 5.0 0.2 41.8 32.6 18.3 37.0 501.2 34.4 38.7 9.4 17.5 1970 20.5 0.0 10.4 29.3 42.1 14.0 1.4 3.0 4.0 4.0 35.6 33.4 197.7 15.6 43.2 4.2 36.9 1971 18.2 27.0 16.3 93.7 45.0 7.5 7.4 0.0 0.0 7.2 5.5 14.5 242.3 25.4 60.3 3.1 11.2 1972 33.8 4.5 40.0 6.0 29.9 79.8 1.0 10.2 26.8 0.0 13.1 29.7 274.8 28.5 42.1 13.8 15.6 1973 32.0 36.0 31.0 44.0 24.5 22.9 0.0 0.0 0.0 0.0 0.0 20.0 210.4 47.1 43.4 0.0 9.5 1974 18.5 27.0 38.4 46.5 30.0 43.0 15.0 4.5 20.0 0.0 0.0 11.5 254.4 33.0 47.0 15.5 4.5 1975 20.0 27.0 37.5 28.5 77.0 19.0 0.0 0.0 0.0 20.0 15.7 16.2 260.9 32.4 47.7 0.0 19.9 1976 9.0 46.0 18.2 66.5 164.1 31.1 1.5 0.0 19.0 36.1 11.4 17.5 420.4 17.4 62.3 4.9 15.5 1977 38.6 6.0 35.7 41.1 49.4 53.2 0.0 2.8 5.0 37.0 40.0 58.4 367.2 21.9 39.1 2.1 36.9 1978 20.0 17.0 22.9 13.9 68.5 44.0 0.0 0.0 9.5 19.5 54.5 24.5 294.3 20.4 42.9 3.2 33.5 1979 25.0 60.0 44.0 42.0 63.0 73.5 0.0 0.0 0.0 66.5 0.0 7.0 381.0 33.9 46.9 0.0 19.3 1980 57.0 36.5 31.5 28.0 29.5 14.5 0.0 0.0 4.0 46.5 19.0 11.5 278.0 45.0 25.9 1.4 27.7 1981 9.5 25.0 31.0 107.5 77.0 77.0 0.0 13.0 0.0 18.5 34.0 9.5 402.0 16.3 65.0 3.2 15.4 1982 49.0 19.0 33.0 41.0 50.0 53.0 23.5 0.0 26.0 128.0 86.5 ****** ****** 19.8 28.3 9.7 42.1 1983 26.0 0.0 24.5 44.0 64.0 0.0 0.0 16.0 23.0 21.0 17.0 12.5 248.0 20.4 43.5 15.7 20.4 1984 22.3 13.0 0.0 0.0 39.5 10.0 16.0 0.0 30.0 33.5 86.5 20.0 270.8 13.0 18.3 17.0 51.7 1985 23.0 47.5 21.0 17.0 50.5 28.5 0.0 0.0 0.0 ****** 0.0 ****** ****** 48.8 51.2 0.0 0.0 1986 20.0 17.7 28.2 31.0 65.4 84.0 3.4 7.0 25.1 18.2 31.0 22.1 353.1 18.7 51.1 10.1 20.2 1987 0.7 15.9 25.4 27.1 30.6 25.3 0.5 24.8 0.7 59.1 14.2 55.6 279.9 15.0 29.7 9.3 46.1 1988 16.5 13.7 27.5 64.2 53.6 28.9 11.9 32.8 1.0 17.6 17.4 25.2 310.3 18.6 47.3 14.7 19.4 1989 20.5 12.3 35.7 13.5 35.0 6.3 0.0 5.0 48.0 89.0 18.2 6.5 290.0 23.6 18.9 18.3 39.2 1990 35.4 10.6 34.3 60.4 27.1 4.3 0.0 0.0 0.0 27.9 3.0 22.8 225.8 35.6 40.7 0.0 23.8 1991 5.6 19.3 66.3 23.3 53.9 54.7 5.3 1.0 0.0 24.1 23.4 37.9 314.8 29.0 41.9 2.0 27.1 1992 12.0 17.7 23.7 32.6 68.2 59.9 8.2 5.6 3.2 9.1 45.6 29.5 315.3 16.9 51.0 5.4 26.7 1993 20.4 59.7 39.0 44.6 60.9 21.9 12.0 19.3 0.0 24.3 93.4 15.1 410.6 29.0 31.0 7.6 32.3 1994 28.1 8.9 41.8 48.8 54.6 33.7 0.0 0.0 6.6 31.7 65.2 19.9 339.3 23.2 40.4 1.9 34.4 1995 28.9 11.5 37.8 60.8 19.6 54.7 2.6 0.0 21.3 8.8 1.5 3.1 250.6 31.2 53.9 9.5 5.3 1996 14.9 21.8 56.6 50.6 39.5 4.3 12.0 2.0 9.3 38.1 29.0 6.7 284.8 32.8 33.1 8.2 25.9 1997 18.5 35.8 34.6 17.3 41.8 51.0 7.5 0.7 33.7 7.2 14.6 20.3 283.0 31.4 38.9 14.8 14.9 1998 26.7 25.7 21.8 36.2 40.1 11.0 16.8 0.0 15.5 39.5 19.5 11.7 264.5 28.1 33.0 12.2 26.7 1999 10.2 4.7 48.4 51.2 66.8 8.4 0.9 26.6 25.3 73.1 19.0 2.1 336.7 18.8 37.5 15.7 28.0 2000 20.6 25.9 32.6 17.8 16.5 1.8 0.6 0.0 39.4 34.3 43.1 9.9 242.5 32.6 14.9 16.5 36.0 MEAN 23.3 22.5 35.0 44.2 49.6 33.9 4.4 5.2 14.7 34.6 27.4 19.9 314.7 25.7 40.6 7.7 26.0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 1 5 7 12 5 7 0 2 0 2 1 1 43 1965 6 3 6 5 4 5 3 1 4 8 0 3 48 1966 3 1 4 6 7 2 0 0 9 7 4 1 44 1967 3 7 9 12 10 4 1 0 4 5 6 3 64 1968 3 3 5 9 7 11 0 1 0 5 10 7 61 1969 8 5 13 17 8 5 1 1 4 12 2 5 81 1970 7 0 6 7 10 2 2 1 1 1 7 4 48 1971 4 11 7 16 12 4 2 0 0 2 1 4 63 1972 7 3 7 3 8 7 1 3 5 0 3 6 53 1973 2 3 6 5 6 3 0 0 0 0 0 2 27 1974 3 4 3 4 5 4 2 1 2 0 0 1 29 1975 2 2 6 4 8 2 0 0 0 3 3 5 35 1976 1 6 4 5 19 2 1 0 1 5 2 6 52 1977 7 1 5 4 7 5 0 1 1 5 3 7 46 1978 3 4 3 5 8 6 0 0 1 5 12 5 52 1979 5 7 9 6 8 13 0 0 0 9 0 4 61 1980 8 11 7 6 4 2 0 0 1 5 5 2 51 1981 3 4 5 11 9 7 0 3 0 1 3 1 47 1982 5 4 3 4 8 4 2 0 5 11 10 *** *** 1983 6 0 4 8 10 0 0 2 2 2 2 3 39 1984 4 1 0 0 5 2 3 0 1 4 8 6 34 1985 2 5 5 5 8 2 0 0 0 *** 0 *** *** 1986 9 6 12 12 16 11 3 1 3 10 17 3 103 1987 2 10 14 9 8 4 2 4 2 16 2 13 86 1988 8 12 14 18 13 14 5 7 1 9 4 8 113 1989 10 6 11 5 9 5 0 1 4 7 8 5 71 1990 8 8 9 11 9 2 0 0 0 7 2 6 62 1991 3 10 15 7 16 8 4 1 0 6 5 9 84 1992 6 6 10 12 18 16 3 3 2 1 10 7 94 1993 13 11 14 12 13 10 2 3 0 4 15 6 103 1994 9 10 11 9 12 9 0 0 2 6 10 9 87 1995 6 5 8 13 9 10 2 0 7 3 4 6 73 1996 9 9 14 12 10 2 2 2 5 6 4 5 80 1997 5 8 11 7 12 10 2 2 4 3 5 7 76 1998 12 7 6 10 16 4 7 0 4 2 5 4 77 1999 5 4 9 15 11 4 1 7 6 8 5 2 77 2000 11 9 9 8 9 1 1 0 6 9 7 7 77 MEAN 6 6 8 8 10 6 1 1 2 5 5 5 63 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 1 5 6 12 5 7 0 2 0 2 1 1 42 1965 6 3 6 5 4 5 3 1 4 8 0 3 48 1966 3 1 4 6 7 1 0 0 9 7 3 1 42 1967 3 7 9 10 10 4 1 0 4 5 6 3 62 1968 3 3 5 9 7 10 0 1 0 5 9 7 59 1969 8 5 11 15 7 5 1 0 3 12 2 4 73 1970 6 0 4 5 10 2 0 1 1 1 7 4 41 1971 4 7 6 13 10 3 2 0 0 2 1 3 51 1972 7 3 7 3 8 7 1 3 5 0 3 5 52 1973 2 3 6 5 6 3 0 0 0 0 0 2 27 1974 3 4 3 4 5 4 2 1 2 0 0 1 29 1975 2 2 6 4 8 2 0 0 0 3 3 5 35 1976 1 6 4 5 19 2 1 0 1 5 2 6 52 1977 7 1 5 4 7 5 0 1 1 5 3 7 46 1978 3 4 3 5 8 6 0 0 1 5 12 5 52 1979 5 7 8 6 8 13 0 0 0 9 0 4 60 1980 8 11 7 6 4 2 0 0 1 5 5 2 51 1981 3 4 5 11 9 7 0 3 0 1 3 1 47 1982 5 4 3 4 8 4 2 0 5 11 10 *** *** 1983 6 0 4 8 10 0 0 2 2 2 2 3 39 1984 3 1 0 0 5 2 3 0 1 4 8 6 33 1985 2 5 5 5 8 2 0 0 0 *** 0 *** *** 1986 5 3 8 6 10 8 2 1 3 5 5 3 59 1987 0 5 6 6 5 3 0 2 0 11 2 10 50 1988 5 5 10 11 11 9 4 4 1 5 2 5 72 1989 7 4 9 3 7 1 0 1 4 7 6 1 50 1990 6 5 5 10 7 1 0 0 0 5 2 3 44 1991 1 6 10 5 12 6 2 1 0 4 4 6 57 1992 3 4 6 9 10 11 2 2 1 1 7 4 60 1993 4 8 8 8 8 3 2 2 0 3 12 3 61 1994 7 4 8 7 10 5 0 0 1 4 8 7 61 1995 6 2 7 12 7 10 2 0 4 2 1 1 54 1996 4 4 12 8 7 1 2 2 4 6 4 3 57 1997 3 7 8 4 9 8 2 0 2 2 4 4 53 1998 8 5 5 10 8 2 3 0 2 2 3 4 52 1999 3 3 7 9 9 3 0 5 4 7 4 1 55 2000 3 7 7 5 5 1 0 0 4 6 5 3 46 MEAN 4 4 6 7 8 5 1 1 2 5 4 4 51 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 1 0 4 0 2 0 0 0 0 0 0 7 1965 1 0 1 1 1 1 0 0 1 5 0 1 12 1966 0 1 2 1 2 0 0 0 2 3 1 0 12 1967 0 0 2 1 4 0 0 0 1 0 0 0 8 1968 0 1 1 3 0 1 0 0 0 1 2 0 9 1969 1 0 4 2 0 3 0 0 1 0 0 2 13 1970 0 0 0 1 1 1 0 0 0 0 1 2 6 1971 0 0 0 4 0 0 0 0 0 0 0 0 4 1972 1 0 1 0 1 5 0 0 0 0 1 1 10 1973 2 2 1 2 0 1 0 0 0 0 0 1 9 1974 0 1 2 2 0 2 0 0 1 0 0 1 9 1975 2 1 1 1 2 1 0 0 0 0 0 0 8 1976 0 1 1 2 5 1 0 0 1 1 0 0 12 1977 2 0 2 2 2 2 0 0 0 1 2 2 15 1978 0 0 1 0 2 2 0 0 0 1 1 1 8 1979 1 2 1 1 2 2 0 0 0 2 0 0 11 1980 2 0 0 0 1 1 0 0 0 2 0 0 6 1981 0 1 1 3 4 3 0 0 0 1 2 0 15 1982 2 0 2 1 1 2 1 0 0 5 4 *** *** 1983 0 0 1 1 2 0 0 1 2 1 1 0 9 1984 1 1 0 0 3 0 0 0 1 1 4 0 11 1985 1 2 0 0 1 1 0 0 0 *** 0 *** *** 1986 0 0 0 1 2 5 0 0 1 0 1 1 11 1987 0 0 0 0 1 1 0 2 0 2 1 2 9 1988 0 0 0 3 2 0 0 1 0 0 1 1 8 1989 0 0 1 0 1 0 0 0 3 3 0 0 8 1990 1 0 1 2 0 0 0 0 0 1 0 1 6 1991 0 0 3 1 2 2 0 0 0 0 1 1 10 1992 0 0 1 0 2 0 0 0 0 0 2 1 6 1993 0 2 0 2 2 1 0 1 0 2 4 0 14 1994 0 0 1 2 1 1 0 0 0 2 2 0 9 1995 1 0 1 2 0 2 0 0 0 0 0 0 6 1996 0 0 2 1 1 0 0 0 0 1 1 0 6 1997 1 1 1 0 1 1 0 0 1 0 0 0 6 1998 0 1 1 0 1 0 0 0 1 2 1 0 7 1999 0 0 2 1 3 0 0 1 1 3 0 0 11 2000 1 0 1 0 0 0 0 0 2 2 1 0 7 MEAN 1 0 1 1 1 1 0 0 1 1 1 1 9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 78 80 84 83 88 77 80 83 84 72 79 79 1965 43 62 81 74 73 80 75 73 78 84 71 59 71 1966 74 76 76 84 86 74 65 68 84 89 82 70 77 1967 70 50 84 78 85 81 74 74 82 81 84 78 77 1968 78 68 80 83 77 82 72 75 73 78 82 79 77 1969 80 41 83 81 83 80 75 70 79 82 86 91 78 1970 88 93 89 76 76 71 64 68 76 71 57 84 76 1971 82 82 87 85 78 67 54 56 55 68 71 76 72 1972 84 78 87 90 79 75 63 66 65 69 81 82 77 1973 78 79 81 80 75 75 71 69 70 72 65 65 73 1974 79 77 76 72 64 71 72 69 73 68 69 69 72 1975 73 69 75 68 78 72 71 71 72 81 76 69 73 1976 64 61 73 71 75 74 72 68 71 76 66 62 69 1977 51 72 66 72 66 77 76 74 75 72 77 65 70 1978 64 62 69 68 83 74 65 61 68 72 71 86 70 1979 80 72 80 78 79 83 85 89 81 84 77 81 81 1980 61 77 71 76 78 72 83 80 90 85 83 80 78 1981 82 81 83 80 81 79 77 83 79 85 79 84 81 1982 81 65 74 83 81 76 85 80 *** 77 69 *** *** 1983 *** *** 71 76 76 82 76 77 79 77 80 71 *** 1984 68 44 74 73 76 75 77 77 76 77 78 53 71 1985 49 59 50 73 74 78 76 79 78 *** 69 *** *** 1986 64 78 81 79 81 83 75 70 69 85 81 69 76 1987 60 75 76 73 70 67 61 74 73 85 60 69 70 1988 68 69 69 75 77 78 76 81 76 81 62 69 73 1989 79 73 86 72 74 70 63 68 81 76 78 76 75 1990 80 85 80 82 78 71 64 75 71 81 62 74 75 1991 79 80 86 79 80 82 69 71 76 80 86 83 79 1992 80 85 85 81 84 89 73 74 78 64 68 80 78 1993 77 79 75 74 85 85 73 75 77 74 84 73 78 1994 68 72 77 81 86 84 71 73 68 82 76 72 76 1995 71 79 76 79 76 80 67 74 81 75 53 72 74 1996 78 76 86 78 84 70 69 68 74 72 80 70 75 1997 65 67 75 65 77 81 76 68 80 67 74 68 72 1998 74 67 72 71 80 67 65 70 81 71 72 71 72 1999 75 63 74 79 89 71 59 72 83 77 75 63 73 2000 69 68 71 70 78 64 56 62 83 86 83 74 72 MEAN 72 71 77 77 79 76 71 72 76 77 74 73 75 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 78 66 62 64 52 57 53 57 55 49 49 59 58 1965 75 71 58 46 42 41 46 49 53 66 45 46 53 1966 49 47 52 49 59 51 39 43 55 63 59 59 52 1967 66 67 59 54 54 48 47 41 47 49 59 55 54 1968 60 64 54 58 44 50 44 39 34 48 59 62 51 1969 74 78 68 63 49 41 45 37 45 54 69 87 59 1970 93 88 81 48 42 34 33 43 56 40 47 74 57 1971 86 86 80 82 61 57 31 23 29 37 45 66 57 1972 72 78 81 69 57 44 37 34 27 46 57 64 56 1973 78 71 60 64 52 53 43 51 44 57 59 61 58 1974 61 66 73 57 44 47 55 63 50 61 61 66 59 1975 65 68 56 54 52 52 50 64 67 54 56 72 59 1976 65 65 61 59 62 62 57 50 55 59 57 63 60 1977 62 59 60 63 58 61 61 56 54 54 58 59 59 1978 62 50 47 54 52 53 36 41 37 51 63 79 52 1979 75 66 74 60 68 73 70 72 68 72 66 70 70 1980 64 81 75 52 58 40 46 49 55 62 56 61 58 1981 63 64 58 57 51 58 48 50 45 60 63 55 56 1982 64 66 59 49 57 44 48 46 58 58 55 *** *** 1983 *** 80 70 46 57 51 47 45 44 52 64 59 *** 1984 62 60 64 38 48 47 38 50 66 62 57 71 55 1985 70 63 59 54 61 53 56 52 44 *** 47 *** *** 1986 54 59 61 54 50 50 45 41 34 57 66 59 53 1987 43 60 55 43 35 33 37 43 43 68 41 60 47 1988 63 53 45 46 41 36 43 49 45 52 39 56 47 1989 70 65 58 34 34 32 37 39 43 52 63 58 49 1990 68 72 56 54 43 32 38 50 40 50 38 57 50 1991 64 57 65 45 43 47 36 42 40 48 58 70 51 1992 64 66 59 50 51 47 44 42 40 32 49 63 51 1993 70 72 52 46 46 46 42 39 39 40 71 66 52 1994 51 52 53 46 51 51 40 46 36 51 57 61 50 1995 54 56 46 49 36 38 40 44 50 42 31 48 45 1996 60 57 62 49 46 38 38 40 37 43 54 49 48 1997 46 53 52 30 38 42 46 41 45 34 47 51 44 1998 70 57 42 41 43 37 35 40 45 40 48 50 46 1999 49 35 43 49 51 34 32 37 48 45 54 43 43 2000 56 50 48 34 38 37 30 37 56 57 57 54 46 MEAN 65 64 60 52 49 46 44 46 47 52 55 61 53 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 70 75 72 75 67 75 62 64 63 63 59 76 68 1965 54 63 67 64 52 58 54 46 60 72 57 46 58 1966 59 59 63 57 69 52 44 49 65 71 64 65 60 1967 68 77 71 66 69 58 58 52 58 63 70 61 64 1968 74 64 61 67 57 63 51 51 45 59 69 71 61 1969 81 62 75 70 62 49 48 44 58 66 78 91 65 1970 91 95 88 63 60 44 40 49 47 48 52 82 63 1971 84 85 84 85 81 59 35 36 36 55 57 70 64 1972 80 81 85 89 69 61 39 42 48 53 65 75 66 1973 80 79 71 65 63 61 54 51 50 50 60 66 63 1974 78 77 72 60 42 49 50 56 57 52 57 64 60 1975 68 65 66 58 61 52 50 63 67 67 65 62 62 1976 68 67 64 63 64 67 62 54 60 62 56 58 62 1977 48 67 65 63 58 61 57 55 56 58 62 55 59 1978 64 59 54 57 60 61 40 46 44 62 77 84 59 1979 75 70 77 65 73 83 75 74 77 78 73 75 75 1980 59 81 78 71 65 41 44 57 67 75 71 69 65 1981 75 75 71 72 59 65 52 61 55 66 68 65 65 1982 71 58 69 60 60 57 54 52 67 70 66 *** *** 1983 *** 81 77 57 61 58 53 54 54 61 61 65 *** 1984 72 55 73 45 61 55 47 60 65 63 58 59 59 1985 71 64 59 54 68 65 67 60 59 *** 50 *** *** 1986 64 62 59 60 49 54 44 36 38 62 74 61 55 1987 49 65 55 41 38 36 37 44 47 73 50 66 50 1988 68 58 50 50 52 39 48 53 49 61 49 64 53 1989 75 67 60 37 39 37 38 41 46 56 67 64 52 1990 72 77 60 56 46 36 40 50 42 57 45 67 54 1991 70 63 68 42 47 48 37 43 42 55 69 80 55 1992 73 73 66 55 58 55 48 45 48 40 60 71 58 1993 76 78 60 49 51 45 42 42 42 48 76 72 57 1994 61 61 59 49 51 49 43 47 36 57 67 68 54 1995 68 63 49 53 42 45 42 44 53 51 40 58 51 1996 69 62 66 51 52 40 37 39 36 49 63 61 52 1997 53 56 58 30 44 47 46 39 50 40 59 61 49 1998 72 62 49 42 48 36 37 41 47 46 51 59 49 1999 60 39 45 52 49 38 35 39 54 52 63 52 48 2000 66 62 51 35 42 38 32 39 59 65 66 65 52 MEAN 69 68 65 58 56 52 47 49 53 59 62 67 59 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 31 15 4 0 0 0 0 0 0 0 3 16 69 1965 29 14 4 2 0 0 0 0 0 3 2 20 74 1966 0 4 5 3 0 0 0 0 0 0 18 20 50 1967 17 19 8 3 0 0 0 0 0 0 3 12 62 1968 22 16 12 1 0 0 0 0 0 0 0 8 59 1969 23 24 4 0 0 0 0 0 0 1 0 11 63 1970 31 15 5 0 0 0 0 0 0 0 0 10 61 1971 15 13 1 2 0 0 0 0 0 0 0 19 50 1972 29 26 17 1 0 0 0 0 0 0 2 30 105 1973 31 14 14 0 0 0 0 0 0 0 12 18 89 1974 31 28 10 2 0 0 0 0 0 1 7 21 100 1975 20 22 12 2 0 0 0 0 0 0 8 22 86 1976 22 24 11 3 0 0 0 0 0 0 7 26 93 1977 29 19 2 0 0 0 0 0 0 6 10 22 88 1978 25 15 4 0 0 0 0 0 0 0 21 5 70 1979 22 15 9 0 0 0 0 0 0 0 0 9 55 1980 28 24 16 1 0 0 0 0 0 0 0 4 73 1981 19 25 6 3 0 0 0 0 0 0 5 2 60 1982 26 24 19 0 0 0 0 0 0 0 15 *** *** 1983 31 27 19 1 0 0 0 0 0 0 2 17 97 1984 27 24 7 0 0 0 0 0 0 1 6 31 96 1985 30 27 17 0 0 0 0 0 0 *** 0 *** *** 1986 13 11 10 0 0 0 0 0 0 0 1 19 54 1987 2 7 7 1 0 0 0 0 0 0 3 7 27 1988 17 16 1 0 0 0 0 0 0 0 2 6 42 1989 31 22 3 0 0 0 0 0 0 0 3 12 71 1990 26 18 7 3 0 0 0 0 0 0 2 14 70 1991 25 17 7 0 0 0 0 0 0 0 2 16 67 1992 26 20 13 0 1 0 0 0 0 0 2 15 77 1993 27 21 11 1 0 0 0 0 0 0 14 10 84 1994 9 16 0 0 0 0 0 0 0 0 1 16 42 1995 7 8 1 0 0 0 0 0 0 0 6 18 40 1996 19 11 6 2 0 0 0 0 0 0 5 1 44 1997 19 19 15 1 0 0 0 0 0 0 2 11 67 1998 26 20 3 0 0 0 0 0 0 0 0 8 57 1999 8 8 7 0 0 0 0 0 0 0 7 4 34 2000 18 14 9 0 0 0 0 0 0 0 1 4 46 MEAN 22 18 8 1 0 0 0 0 0 0 5 14 68 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 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 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 0 0 0 0 0 0 0 0 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 0 0 0 0 0 0 0 0 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 0 0 0 0 0 6 4 0 0 0 10 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 *** *** 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 *** *** 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 1 0 0 0 0 1 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 0 0 0 0 0 0 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 2 0 0 0 0 0 2 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 3 0 0 0 0 3 2000 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 AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 22 0 0 0 0 0 0 0 0 0 0 2 24 1965 14 0 0 0 0 0 0 0 0 0 0 0 14 1966 0 1 0 0 0 0 0 0 0 0 0 0 1 1967 0 5 0 0 0 0 0 0 0 0 0 1 6 1968 0 4 0 0 0 0 0 0 0 0 0 1 5 1969 14 11 1 0 0 0 0 0 0 0 0 0 26 1970 3 0 1 0 0 0 0 0 0 0 0 2 6 1971 8 9 0 0 0 0 0 0 0 0 0 0 17 1972 8 14 4 0 0 0 0 0 0 0 0 11 37 1973 9 2 0 0 0 0 0 0 0 0 2 3 16 1974 16 12 0 0 0 0 0 0 0 0 0 0 28 1975 2 5 0 0 0 0 0 0 0 0 1 3 11 1976 1 10 3 0 0 0 0 0 0 0 0 0 14 1977 15 0 0 0 0 0 0 0 0 0 0 1 16 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 1 0 0 0 0 0 0 0 0 0 0 1 1980 1 0 0 0 0 0 0 0 0 0 0 0 1 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 0 2 0 0 0 0 0 0 0 0 0 *** *** 1983 11 0 2 0 0 0 0 0 0 0 0 0 13 1984 2 7 0 0 0 0 0 0 0 0 0 13 22 1985 1 8 10 0 0 0 0 0 0 *** 0 *** *** 1986 4 3 4 0 0 0 0 0 0 0 0 11 22 1987 0 3 1 0 0 0 0 0 0 2 0 5 11 1988 12 7 0 0 0 0 0 0 0 0 0 4 23 1989 23 9 2 0 0 0 0 0 0 0 0 4 38 1990 18 12 3 1 0 0 0 0 0 0 0 8 42 1991 8 9 5 0 0 0 0 0 0 0 0 5 27 1992 13 5 6 0 0 0 0 0 0 0 0 8 32 1993 19 15 3 0 0 0 0 0 0 0 11 5 53 1994 2 8 1 0 0 0 0 0 0 0 0 9 20 1995 3 0 0 0 0 0 0 0 0 0 0 8 11 1996 12 6 3 0 0 0 0 0 0 0 0 0 21 1997 10 12 4 0 0 0 0 0 0 0 0 4 30 1998 13 9 0 0 0 0 0 0 0 0 0 2 24 1999 0 0 1 0 0 0 0 0 0 0 3 0 4 2000 10 5 2 0 0 0 0 0 0 0 0 3 20 MEAN 7 5 2 0 0 0 0 0 0 0 0 3 17 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 9 7 4 1 1 0 0 22 1965 0 0 0 0 2 4 10 21 7 0 0 0 44 1966 0 0 0 0 0 11 20 19 1 0 0 0 51 1967 0 0 0 0 0 2 1 2 2 0 0 0 7 1968 0 0 0 0 0 1 15 9 11 0 0 0 36 1969 0 0 0 0 4 14 5 10 4 1 0 0 38 1970 0 0 0 0 0 6 12 10 2 0 0 0 30 1971 0 0 0 0 0 0 16 16 17 3 0 0 52 1972 0 0 0 0 0 1 12 7 9 2 0 0 31 1973 0 0 0 0 1 1 9 12 5 5 0 0 33 1974 0 0 0 0 2 11 10 7 0 0 0 0 30 1975 0 0 0 0 3 7 25 6 0 0 0 0 41 1976 0 0 0 0 0 4 14 26 0 0 0 0 44 1977 0 0 0 0 0 10 10 15 5 1 0 0 41 1978 0 0 0 0 0 9 18 5 12 0 0 0 44 1979 0 0 0 0 0 0 15 20 11 1 0 0 47 1980 0 0 0 0 0 7 22 8 6 0 0 0 43 1981 0 0 0 0 1 0 14 6 6 0 0 0 27 1982 0 0 0 0 0 1 12 3 1 0 0 *** *** 1983 0 0 0 0 0 2 19 11 0 0 0 0 32 1984 0 0 0 0 0 8 26 12 2 0 0 0 48 1985 0 0 0 0 2 10 8 19 9 *** 0 *** *** 1986 0 0 0 0 0 0 10 9 5 0 0 0 24 1987 0 0 0 0 1 8 11 13 4 0 0 0 37 1988 0 0 0 0 0 6 4 3 3 0 0 0 16 1989 0 0 0 0 1 6 16 15 6 0 0 0 44 1990 0 0 0 0 0 10 12 1 8 0 0 0 31 1991 0 0 0 0 0 3 16 5 3 0 0 0 27 1992 0 0 0 0 0 0 6 6 0 0 0 0 12 1993 0 0 0 0 0 2 6 6 7 0 0 0 21 1994 0 0 0 0 0 3 0 2 0 0 0 0 5 1995 0 0 0 0 0 4 5 12 6 0 0 0 27 1996 0 0 0 0 0 4 13 15 4 0 0 0 36 1997 0 0 0 0 0 2 7 11 5 0 0 0 25 1998 0 0 0 0 0 6 11 11 4 0 0 0 32 1999 0 0 0 0 0 4 7 21 2 0 0 0 34 2000 0 0 0 0 0 4 19 10 3 0 0 0 36 MEAN 0 0 0 0 0 5 12 10 5 0 0 0 32 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 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 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 0 1 0 0 0 0 0 1 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 0 0 0 0 0 0 0 0 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 0 0 0 0 0 0 0 0 0 0 0 *** *** 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 *** *** 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 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 0 0 0 0 0 0 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 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 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 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 0 0 0 0 0 0 0 0 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 0 0 0 0 0 0 0 0 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 0 0 0 0 0 0 0 0 0 0 0 *** *** 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 *** *** 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 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 0 0 0 0 0 0 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 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 24 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 31 28 15 5 0 0 0 0 0 3 10 28 120 10 8 4 18 1965 31 26 16 6 0 0 0 0 0 7 11 29 126 10 24 4 10 1966 12 21 18 4 0 0 0 0 0 0 25 28 108 11 6 4 5 1967 30 27 24 10 0 0 0 0 0 0 11 26 128 11 16 4 15 1968 29 24 22 12 0 0 0 0 0 1 4 26 118 10 28 4 26 1969 31 26 17 8 0 0 0 0 0 1 5 14 102 10 30 4 15 1970 31 19 16 2 0 0 0 0 0 6 7 26 107 10 8 4 23 1971 24 22 5 2 0 0 0 0 0 4 2 24 83 10 18 4 3 1972 31 28 22 2 0 0 0 0 0 0 11 31 125 11 6 4 4 1973 31 16 20 3 0 0 0 0 0 0 18 21 109 11 5 4 6 1974 31 28 19 2 0 0 0 0 0 3 13 30 126 10 20 4 8 1975 31 28 21 3 0 0 0 0 0 1 15 27 126 10 30 4 7 1976 30 29 17 5 0 0 0 0 0 0 12 31 124 11 16 4 5 1977 31 24 4 0 0 0 0 0 0 11 24 27 121 10 13 3 12 1978 30 24 19 8 0 0 0 0 0 0 29 25 135 11 2 4 25 1979 27 26 28 9 2 0 0 0 0 0 11 31 134 11 11 5 4 1980 30 29 20 2 0 0 0 0 0 0 10 29 120 11 16 4 17 1981 30 28 22 11 0 0 0 0 0 0 10 23 124 11 6 4 17 1982 30 27 28 3 0 0 0 0 0 3 28 *** *** 10 7 4 9 1983 31 28 29 10 0 0 0 0 0 5 7 25 135 10 7 4 22 1984 31 29 29 3 6 0 0 0 0 9 21 31 159 10 20 5 6 1985 31 28 27 0 0 0 0 0 0 *** 20 *** *** 11 1 3 30 1986 24 22 28 0 0 0 0 0 0 0 12 25 111 11 11 3 30 1987 20 19 22 8 0 0 0 0 0 5 10 15 99 10 12 4 26 1988 29 24 14 6 0 0 0 0 0 0 10 18 101 11 1 4 9 1989 31 26 11 0 0 0 0 0 0 0 4 25 97 11 20 3 31 1990 31 24 19 4 0 0 0 0 0 2 8 19 107 10 15 4 5 1991 31 23 17 1 0 0 0 0 0 0 13 23 108 11 2 4 13 1992 31 27 26 6 4 0 0 0 0 1 9 24 128 10 15 5 5 1993 30 27 25 5 0 0 0 0 0 1 23 21 132 10 9 4 24 1994 24 26 17 1 0 0 0 0 0 0 6 23 97 11 6 4 3 1995 21 22 19 2 0 0 0 0 0 1 13 27 105 10 20 4 7 1996 25 21 21 3 0 0 0 0 0 2 14 5 91 10 28 4 6 1997 24 27 24 6 0 0 0 0 0 0 10 21 112 11 1 4 20 1998 30 25 15 3 0 0 0 0 0 1 1 19 94 10 9 4 26 1999 24 20 14 5 0 0 0 0 0 0 14 12 89 11 1 4 24 2000 26 28 22 0 0 0 0 0 0 0 10 17 103 11 9 3 28 MEAN 28 25 20 4 0 0 0 0 0 2 12 24 115 10 7 5 6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 -7.2 0.7 6.5 7.8 16.7 20.2 22.3 20.9 17.8 12.1 8.3 1.3 10.6 1965 -0.9 1.0 7.3 9.7 16.5 19.4 21.3 23.0 18.5 10.0 9.0 4.8 11.6 1966 6.8 5.5 6.6 11.0 13.8 20.6 23.0 23.0 17.3 12.4 8.7 5.7 12.9 1967 2.3 -2.0 3.5 8.1 14.6 17.6 20.4 21.8 17.3 13.3 7.2 3.1 10.6 1968 0.9 0.4 5.0 9.4 15.6 17.0 21.6 21.7 19.7 14.3 8.5 3.0 11.4 1969 -2.8 -0.3 4.8 8.3 15.6 20.9 20.6 21.6 16.5 12.3 7.9 5.0 10.9 1970 1.1 4.7 6.1 12.3 15.4 19.2 21.5 21.7 16.7 13.6 11.4 1.5 12.1 1971 -0.2 -1.6 7.6 8.1 15.8 18.1 22.2 21.1 22.2 15.3 9.8 2.0 11.7 1972 -3.7 -4.0 0.8 13.5 13.6 19.7 23.4 21.7 19.9 16.2 7.4 -3.6 10.4 1973 -3.7 3.5 4.2 10.1 13.3 17.2 21.4 21.4 18.3 16.9 5.4 2.4 10.9 1974 -5.6 -6.1 4.0 9.6 17.3 20.2 20.7 19.6 17.7 14.3 6.9 0.5 9.9 1975 -0.3 -0.4 4.6 11.4 16.3 20.0 24.5 18.7 14.7 11.4 5.0 -0.6 10.4 1976 1.5 -3.8 3.8 9.4 13.8 19.6 21.6 24.2 18.5 15.6 8.2 0.5 11.1 1977 -5.9 3.0 10.5 10.7 13.5 20.6 21.3 22.1 18.6 9.9 6.4 1.0 11.0 1978 1.3 4.2 8.6 11.2 14.3 17.1 22.9 22.1 20.1 14.5 1.5 3.3 11.8 1979 0.6 2.4 4.2 10.6 13.4 16.1 21.9 23.9 21.1 13.9 10.6 4.9 12.0 1980 -1.9 0.6 5.2 10.9 15.5 20.5 23.9 21.1 18.3 13.3 9.4 4.6 11.8 1981 2.1 2.0 6.0 8.2 13.4 17.7 22.7 21.1 19.3 13.9 7.4 5.4 11.6 1982 -1.0 -2.8 3.1 13.2 14.8 19.2 22.1 19.6 ****** 10.1 2.9 ****** ****** 1983 -4.0 -0.0 3.2 10.6 15.1 19.4 23.2 21.0 17.7 12.6 9.7 3.0 11.0 1984 1.8 -2.8 4.6 12.0 12.2 17.4 23.8 20.8 19.2 11.7 7.6 -4.4 10.3 1985 -0.7 -1.9 0.1 13.7 17.0 21.2 20.9 21.9 19.7 ****** 8.4 ****** ****** 1986 0.9 1.1 1.2 10.4 14.0 17.5 22.8 22.3 20.0 12.7 4.3 -0.9 10.5 1987 3.7 2.8 3.6 9.9 18.3 21.3 22.8 21.6 17.0 6.6 7.3 2.4 11.5 1988 -1.5 -0.4 5.5 10.6 14.7 20.3 21.5 19.8 17.4 12.5 6.9 3.1 10.9 1989 -5.5 -3.9 6.2 14.0 16.5 21.2 24.4 23.2 18.4 14.1 7.6 2.7 11.6 1990 -3.9 -1.7 3.9 9.1 14.7 21.5 22.6 20.9 19.9 12.9 10.1 2.0 11.0 1991 -1.5 -0.7 3.5 12.4 14.6 18.9 22.9 21.9 18.0 13.8 6.4 -0.1 10.8 1992 -3.2 -1.0 1.5 8.7 11.9 17.9 21.3 19.3 16.9 13.5 7.2 -0.0 9.5 1993 -4.1 -4.0 2.4 9.8 14.5 18.8 21.5 21.2 18.3 11.2 -0.1 0.7 9.2 1994 1.8 -0.9 5.1 12.7 15.3 17.8 20.8 21.5 17.3 12.4 6.6 -0.8 10.8 1995 2.4 2.7 6.7 11.2 16.3 19.5 21.9 22.8 18.3 11.4 8.2 0.6 11.8 1996 -1.8 1.3 2.8 9.1 16.5 18.9 23.1 22.4 19.7 12.6 5.6 5.5 11.3 1997 0.4 -2.5 0.4 11.5 16.0 20.4 22.2 23.0 16.6 15.5 7.0 2.3 11.1 1998 -2.5 -2.5 5.8 12.8 16.0 22.4 22.9 23.2 18.4 13.7 9.5 5.1 12.1 1999 2.1 4.4 5.8 9.6 14.6 20.1 22.2 24.7 17.9 13.1 4.7 4.9 12.0 2000 -0.2 0.5 3.9 14.0 15.9 20.1 24.8 23.3 18.6 10.5 4.9 2.9 11.6 MEAN -0.9 -0.1 4.6 10.7 15.0 19.3 22.3 21.8 18.4 12.9 7.1 2.1 11.1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 -11.7 -3.9 1.3 2.8 10.0 14.8 14.7 14.1 11.1 4.7 0.1 -4.1 4.5 1965 -9.2 -6.0 1.1 1.7 6.4 10.5 12.0 12.9 10.8 4.9 0.4 -4.9 3.4 1966 -1.1 -2.6 -0.4 3.5 8.0 11.2 10.9 11.9 10.6 7.4 2.2 -1.1 5.0 1967 -3.5 -8.5 -1.7 1.6 8.2 9.5 11.7 11.9 9.3 6.0 1.8 -3.5 3.6 1968 -4.5 -6.3 -2.1 3.3 6.7 9.6 11.5 11.0 7.5 6.2 2.8 -2.3 3.6 1969 -6.3 -7.7 0.4 2.7 8.1 10.4 10.7 9.8 7.7 5.3 3.9 3.4 4.0 1970 -0.3 3.5 3.8 4.2 6.2 6.6 8.1 10.9 8.0 3.0 0.7 -1.8 4.4 1971 -2.7 -3.9 4.7 5.4 10.6 9.7 6.4 4.6 6.6 4.3 1.1 -3.1 3.6 1972 -7.2 -7.1 -1.7 10.2 7.5 10.9 10.5 8.9 6.9 6.3 1.3 -7.9 3.2 1973 -7.0 -0.6 -0.9 4.5 6.0 9.3 11.6 11.9 8.3 8.6 -1.8 -4.0 3.8 1974 -9.9 -10.3 -0.5 2.5 5.5 10.4 11.9 12.0 9.4 6.2 -0.1 -5.4 2.7 1975 -5.7 -6.0 -1.9 3.2 8.6 11.1 15.0 12.1 8.8 4.9 -1.5 -6.3 3.5 1976 -4.6 -9.9 -1.6 2.8 7.6 13.2 14.2 14.7 10.8 8.9 0.5 -6.6 4.2 1977 -14.5 -3.4 3.4 4.4 6.0 13.6 14.0 13.8 10.6 1.8 0.0 -6.1 3.7 1978 -5.3 -4.2 -0.1 3.3 7.1 9.4 10.0 10.4 7.9 6.6 -3.9 0.5 3.5 1979 -2.9 -1.4 0.9 4.4 8.4 12.4 17.4 19.6 16.4 9.7 5.4 1.0 7.6 1980 -9.0 -2.7 0.8 4.0 8.8 8.9 13.8 12.5 12.2 8.3 3.8 -0.9 5.0 1981 -2.4 -2.7 0.9 2.3 5.9 11.1 13.4 13.3 10.1 8.1 1.9 -0.6 5.1 1982 -5.7 -9.2 -2.7 5.5 8.1 10.3 13.6 10.5 ****** 3.8 -3.6 ****** ****** 1983 ****** ****** -1.4 2.2 8.0 11.8 13.7 11.9 8.8 5.1 4.1 -3.3 ****** 1984 -3.8 -11.6 -0.8 1.5 4.2 8.4 12.5 12.8 13.2 5.5 0.9 -11.1 2.6 1985 -7.1 -8.8 -6.9 5.6 10.7 14.0 14.1 14.2 11.0 ****** -0.7 ****** ****** 1986 -6.3 -4.9 -4.8 3.3 5.2 9.2 12.2 9.9 6.5 6.2 -0.5 -7.0 2.4 1987 -6.0 -3.4 -3.8 -0.9 4.9 7.7 9.3 10.7 6.4 1.9 -3.8 -4.4 1.5 1988 -7.2 -7.8 -3.9 1.1 4.7 8.0 11.3 11.3 7.2 5.2 -3.9 -4.1 1.8 1989 -9.6 -9.3 -0.3 1.5 4.0 7.9 11.2 11.0 7.9 5.4 1.7 -3.7 2.3 1990 -8.3 -5.2 -3.0 1.5 3.7 7.3 9.9 11.9 8.1 4.9 -1.3 -4.5 2.1 1991 -6.6 -6.8 -1.7 1.9 4.4 9.4 9.7 10.7 6.8 5.4 0.8 -3.8 2.5 1992 -7.9 -5.3 -3.9 0.4 4.3 9.7 11.0 8.4 6.6 -0.2 -1.2 -5.0 1.4 1993 -8.3 -7.9 -5.0 -0.5 5.4 8.5 10.1 9.6 6.3 0.5 -4.2 -4.4 0.8 1994 -5.8 -8.3 -2.6 3.1 7.0 8.9 9.7 11.5 4.1 4.1 0.2 -6.6 2.1 1995 -4.1 -3.9 -3.2 2.6 4.7 8.3 10.1 11.9 9.7 1.7 -5.3 -7.6 2.1 1996 -7.2 -5.6 -2.7 0.2 7.3 6.7 10.2 9.7 6.5 2.4 -1.3 -2.4 2.0 1997 -8.5 -10.3 -7.0 -3.1 4.7 9.9 12.2 10.6 6.2 2.7 -1.2 -5.2 0.9 1998 -7.1 -9.0 -3.8 0.9 6.2 8.8 8.9 11.0 8.5 2.1 0.0 -3.5 1.9 1999 -5.3 -7.4 -4.5 0.7 6.1 7.5 8.0 11.6 9.4 3.3 -2.3 -4.9 1.9 2000 -7.2 -7.3 -5.8 0.9 4.7 6.9 8.8 9.8 11.3 4.2 -1.0 -3.8 1.8 MEAN -6.4 -6.0 -1.7 2.6 6.6 9.8 11.5 11.5 8.8 4.9 -0.1 -4.0 3.1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 2.02 3.36 4.95 5.45 9.13 12.24 12.09 11.68 9.60 6.33 4.56 3.39 7.07 1965 2.45 3.15 4.81 5.15 7.00 9.20 10.17 11.20 9.60 6.39 4.60 3.34 6.42 1966 4.05 3.72 4.36 5.69 7.84 10.12 9.75 10.29 9.19 7.45 5.28 4.14 6.82 1967 3.55 2.84 3.92 5.01 7.94 8.69 9.91 10.08 8.42 6.74 5.15 3.51 6.31 1968 3.21 3.02 3.88 5.66 7.18 8.72 10.05 9.73 7.63 6.86 5.38 3.73 6.25 1969 2.87 2.91 4.55 5.45 7.85 9.10 9.25 8.82 7.67 6.54 5.93 5.85 6.40 1970 4.47 5.83 6.18 6.03 6.90 7.16 7.84 9.49 7.94 5.55 4.71 3.92 6.33 1971 4.10 3.49 6.27 6.75 9.39 9.23 7.32 6.40 7.41 6.46 4.85 3.56 6.27 1972 2.66 2.83 4.01 9.35 7.47 9.49 9.22 8.26 7.28 7.02 4.96 2.55 6.26 1973 2.85 4.43 4.13 6.14 6.86 8.73 10.12 10.25 7.97 8.31 4.37 3.63 6.48 1974 2.19 2.10 4.43 5.40 6.81 9.38 10.28 10.40 8.62 7.18 4.51 3.14 6.20 1975 2.98 2.97 3.93 5.80 8.26 9.71 12.55 10.63 8.30 6.31 4.00 2.97 6.53 1976 3.29 2.42 4.20 5.56 7.67 11.40 12.09 12.46 9.54 8.42 4.77 2.85 7.06 1977 1.81 3.56 5.84 6.12 6.84 11.51 11.76 11.66 9.45 5.28 4.63 3.10 6.80 1978 3.13 3.40 4.42 5.74 7.40 8.71 9.07 9.18 7.83 7.07 3.43 4.64 6.17 1979 3.75 4.08 4.85 6.20 8.19 10.60 14.55 16.89 14.32 9.04 6.87 4.96 8.69 1980 2.63 3.79 5.00 6.03 8.25 8.30 11.53 10.56 10.30 8.09 5.88 4.17 7.04 1981 3.72 3.65 4.78 5.46 6.80 9.66 11.19 11.05 9.23 8.05 5.26 4.22 6.92 1982 3.04 2.39 3.78 6.65 7.81 9.03 11.33 9.14 ****** 5.84 3.46 ****** ****** 1983 ****** ****** 4.24 5.21 7.87 9.98 11.64 10.07 8.17 6.55 6.05 3.62 ****** 1984 3.55 2.10 4.30 4.92 6.05 7.96 10.69 10.93 11.10 6.72 4.77 2.09 6.27 1985 2.98 2.62 3.43 6.93 9.55 11.95 11.76 11.98 9.83 ****** 4.30 ****** ****** 1986 2.84 3.08 3.16 5.58 6.48 8.39 10.26 8.84 7.08 6.82 4.32 2.69 5.79 1987 2.82 3.48 3.37 4.20 6.49 7.56 8.43 9.32 7.07 5.10 3.46 3.43 5.39 1988 2.65 2.53 3.41 5.03 6.34 7.81 9.74 9.63 7.36 6.41 3.44 3.33 5.64 1989 2.17 2.28 4.36 4.95 5.94 7.72 9.57 9.53 7.80 6.52 5.13 3.37 5.78 1990 2.49 3.05 3.62 4.98 6.03 7.54 8.87 9.97 7.88 6.26 4.04 3.30 5.67 1991 2.78 2.78 4.00 5.09 6.10 8.53 8.68 9.25 7.23 6.47 4.72 3.39 5.75 1992 2.52 3.08 3.36 4.56 6.11 8.73 9.42 7.97 7.14 4.42 4.14 3.18 5.39 1993 2.43 2.53 3.08 4.36 6.59 8.14 8.94 8.69 7.12 4.61 3.37 3.26 5.26 1994 2.96 2.45 3.67 5.59 7.37 8.31 8.62 9.78 5.98 6.10 4.49 2.84 5.68 1995 3.32 3.36 3.63 5.44 6.25 7.96 8.84 10.09 8.71 4.99 3.15 2.57 5.69 1996 2.70 3.04 3.69 4.59 7.42 7.15 9.04 8.79 7.13 5.32 4.11 3.74 5.56 1997 2.46 2.20 2.73 3.69 6.33 8.93 10.21 9.34 7.00 5.37 4.09 3.06 5.45 1998 2.63 2.39 3.41 4.83 6.96 8.25 8.40 9.55 8.05 5.26 4.43 3.47 5.64 1999 3.03 2.58 3.30 4.75 6.90 7.45 7.71 9.99 8.57 5.61 3.83 3.12 5.57 2000 2.67 2.62 2.99 4.86 6.19 7.19 8.22 8.87 9.62 5.97 4.14 3.36 5.56 MEAN 2.94 3.06 4.11 5.49 7.20 8.93 9.98 10.02 8.42 6.43 4.56 3.47 6.22 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 2.83 4.72 6.96 7.66 12.80 17.10 16.92 16.35 13.47 8.90 6.42 4.76 9.91 1965 3.44 4.42 6.76 7.24 9.85 12.92 14.26 15.67 13.45 8.98 6.48 4.71 9.02 1966 5.70 5.24 6.14 8.00 11.01 14.16 13.67 14.43 12.89 10.45 7.42 5.82 9.58 1967 4.98 3.99 5.51 7.04 11.15 12.19 13.91 14.15 11.82 9.48 7.23 4.94 8.86 1968 4.51 4.24 5.46 7.96 10.10 12.24 14.09 13.65 10.74 9.64 7.56 5.24 8.79 1969 4.03 4.09 6.40 7.66 11.02 12.78 12.99 12.40 10.77 9.18 8.33 8.20 8.99 1970 6.27 8.17 8.66 8.47 9.71 10.08 11.04 13.33 11.16 7.81 6.63 5.50 8.90 1971 5.75 4.89 8.80 9.46 13.16 12.93 10.30 9.02 10.43 9.08 6.82 5.01 8.80 1972 3.73 3.96 5.63 13.08 10.49 13.31 12.97 11.63 10.25 9.87 6.98 3.59 8.79 1973 4.00 6.22 5.81 8.63 9.65 12.25 14.18 14.38 11.21 11.67 6.15 5.10 9.10 1974 3.07 2.95 6.23 7.60 9.57 13.16 14.40 14.56 12.11 10.08 6.34 4.42 8.71 1975 4.19 4.17 5.53 8.15 11.59 13.61 17.55 14.87 11.64 8.87 5.62 4.17 9.16 1976 4.63 3.40 5.90 7.81 10.76 15.94 16.90 17.42 13.38 11.81 6.71 4.01 9.89 1977 2.54 5.00 8.21 8.60 9.61 16.09 16.45 16.31 13.25 7.42 6.51 4.36 9.53 1978 4.40 4.78 6.23 8.07 10.40 12.22 12.75 12.90 11.01 9.94 4.81 6.51 8.67 1979 5.27 5.73 6.82 8.70 11.48 14.82 20.28 23.45 19.91 12.66 9.64 6.97 12.14 1980 3.69 5.32 7.01 8.47 11.58 11.67 16.14 14.80 14.43 11.34 8.26 5.87 9.88 1981 5.23 5.13 6.71 7.67 9.55 13.54 15.68 15.48 12.94 11.29 7.38 5.94 9.71 1982 4.27 3.36 5.31 9.35 10.96 12.68 15.87 12.83 ****** 8.22 4.87 ****** ****** 1983 ****** ****** 5.95 7.33 11.05 14.00 16.28 14.13 11.49 9.20 8.51 5.09 ****** 1984 5.00 2.95 6.04 6.94 8.51 11.19 14.99 15.30 15.54 9.44 6.70 2.93 8.79 1985 4.19 3.68 4.82 9.73 13.38 16.69 16.45 16.76 13.77 ****** 6.05 ****** ****** 1986 4.00 4.33 4.44 7.85 9.11 11.79 14.40 12.44 9.98 9.58 6.07 3.78 8.14 1987 3.98 4.89 4.74 5.91 9.13 10.65 11.86 13.09 9.95 7.17 4.87 4.82 7.59 1988 3.73 3.56 4.80 7.08 8.92 10.99 13.67 13.51 10.35 9.00 4.85 4.69 7.93 1989 3.04 3.20 6.13 6.97 8.37 10.87 13.46 13.39 10.96 9.17 7.22 4.74 8.13 1990 3.49 4.28 5.08 7.01 8.49 10.62 12.47 13.99 11.09 8.80 5.69 4.64 7.97 1991 3.90 3.90 5.62 7.17 8.59 11.98 12.22 13.00 10.18 9.10 6.64 4.76 8.09 1992 3.54 4.32 4.73 6.42 8.59 12.26 13.24 11.21 10.04 6.23 5.82 4.46 7.57 1993 3.40 3.55 4.33 6.14 9.27 11.44 12.57 12.22 10.01 6.50 4.73 4.57 7.40 1994 4.16 3.44 5.16 7.87 10.35 11.67 12.12 13.73 8.43 8.57 6.32 3.99 7.98 1995 4.66 4.73 5.10 7.65 8.80 11.19 12.43 14.16 12.24 7.03 4.44 3.61 8.00 1996 3.79 4.28 5.19 6.46 10.43 10.07 12.71 12.36 10.03 7.49 5.78 5.26 7.82 1997 3.46 3.09 3.84 5.20 8.91 12.54 14.33 13.13 9.84 7.57 5.76 4.31 7.66 1998 3.70 3.36 4.80 6.80 9.79 11.61 11.82 13.42 11.31 7.41 6.23 4.89 7.93 1999 4.26 3.64 4.64 6.68 9.69 10.49 10.87 14.04 12.04 7.89 5.38 4.39 7.83 2000 3.75 3.69 4.21 6.85 8.72 10.14 11.59 12.47 13.50 8.39 5.82 4.73 7.82 MEAN 4.13 4.30 5.78 7.72 10.12 12.54 14.00 14.05 11.82 9.03 6.41 4.88 8.73 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 1.05 1.89 3.23 3.81 7.47 7.82 10.69 9.12 7.95 6.58 5.39 2.35 5.61 1965 2.36 2.31 3.95 5.80 9.99 10.87 11.95 14.17 9.02 4.22 5.54 4.97 7.10 1966 4.58 4.22 4.25 5.91 5.65 11.30 16.07 14.97 7.84 4.57 4.54 3.65 7.30 1967 2.63 1.86 2.62 4.35 6.17 9.00 10.76 13.05 9.01 6.40 3.61 3.24 6.06 1968 2.30 2.69 3.72 4.65 8.52 8.15 13.04 13.64 13.89 7.67 3.89 2.58 7.06 1969 1.27 2.29 2.69 4.10 7.75 13.88 12.49 14.62 9.38 6.18 2.73 0.88 6.52 1970 0.59 0.77 1.66 6.71 8.90 13.53 15.79 13.66 8.86 8.81 7.30 1.55 7.35 1971 0.96 0.78 2.03 1.82 5.19 8.67 17.76 17.46 18.04 9.84 5.73 2.51 7.57 1972 1.27 0.93 1.19 3.25 5.55 10.21 16.59 15.46 13.83 9.57 4.02 1.31 6.93 1973 1.05 2.11 2.82 4.16 6.70 8.59 12.68 12.27 10.71 8.51 4.01 2.91 6.38 1974 1.24 1.14 2.29 5.02 11.46 11.84 11.02 9.22 8.84 7.04 3.96 2.24 6.28 1975 1.95 2.13 3.50 6.51 8.07 10.70 14.62 7.75 5.59 5.45 3.65 1.90 5.98 1976 2.41 1.67 3.00 4.51 5.63 8.01 10.39 14.19 8.73 6.66 4.66 2.52 6.03 1977 1.82 3.14 4.93 4.67 6.51 9.33 9.76 11.92 9.46 6.58 3.76 2.78 6.22 1978 2.56 4.05 5.59 6.11 6.95 8.68 16.90 14.41 14.22 7.31 2.27 1.47 7.54 1979 1.74 2.84 2.44 4.87 4.60 4.26 6.87 7.08 6.83 4.19 4.07 2.58 4.36 1980 2.03 1.31 2.42 5.57 6.78 13.31 14.50 11.00 7.33 4.58 4.07 3.15 6.34 1981 2.14 2.27 3.60 4.16 6.61 7.29 12.74 10.23 10.97 5.62 3.60 3.48 6.06 1982 1.91 1.89 2.85 6.68 6.55 10.33 11.66 11.04 ****** 5.09 3.30 ****** ****** 1983 ****** ****** 2.27 6.23 6.92 9.42 13.33 11.76 9.66 6.61 4.51 2.90 ****** 1984 2.43 2.16 2.88 7.95 6.48 10.17 15.79 10.46 7.46 5.02 4.15 1.65 6.38 1985 1.99 2.08 2.92 7.04 6.72 9.95 9.16 10.86 10.81 ****** 5.50 ****** ****** 1986 2.88 2.59 2.58 5.22 7.62 9.19 14.77 15.66 15.14 5.56 2.72 2.37 7.19 1987 4.29 3.02 3.54 7.17 13.00 16.02 17.27 14.24 10.61 3.37 6.02 2.91 8.46 1988 1.93 2.68 4.61 6.47 8.90 14.08 13.25 10.35 10.53 6.19 5.60 3.56 7.35 1989 1.12 1.71 3.89 10.06 11.59 15.69 18.17 16.28 12.13 8.20 3.57 2.99 8.78 1990 1.34 1.46 3.65 5.61 9.22 16.36 16.18 11.47 13.59 6.97 7.42 3.24 8.04 1991 1.81 2.35 3.05 8.18 8.89 10.90 17.07 14.40 11.68 7.23 3.35 1.51 7.54 1992 1.48 1.63 2.65 5.48 6.41 9.22 13.34 12.39 10.25 10.43 5.00 1.98 6.69 1993 1.30 1.27 3.53 6.84 8.11 11.47 14.23 13.98 12.70 7.78 1.94 2.12 7.11 1994 2.95 2.63 4.17 8.00 8.00 10.03 13.25 12.54 12.44 6.48 3.86 2.10 7.20 1995 2.93 2.98 5.34 6.27 10.71 12.84 14.78 14.81 10.46 7.34 7.22 3.10 8.23 1996 2.03 2.98 2.70 5.79 9.44 12.99 16.89 16.22 14.50 7.95 3.77 4.01 8.27 1997 3.29 2.31 3.03 9.78 10.41 12.53 13.22 16.21 10.45 11.15 4.68 3.33 8.37 1998 1.48 2.13 5.01 9.31 9.27 16.88 17.40 16.42 11.07 9.45 6.25 4.44 9.09 1999 3.06 5.20 5.19 6.03 8.29 14.22 17.03 18.71 9.47 8.57 3.86 4.63 8.69 2000 2.75 2.94 4.54 10.05 10.45 14.73 21.18 17.62 8.99 4.80 3.09 3.02 8.68 MEAN 2.08 2.29 3.36 6.06 7.99 11.15 14.12 13.23 10.62 6.89 4.40 2.74 7.08 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 71 73 72 74 67 73 64 67 67 65 60 71 69 1965 58 65 69 61 56 59 59 56 64 74 58 51 61 1966 60 61 64 63 71 59 49 53 68 74 68 64 63 1967 68 65 71 66 69 62 60 56 62 64 71 64 65 1968 71 65 65 69 59 65 56 55 51 62 70 71 63 1969 78 62 75 71 65 57 56 51 61 67 77 90 68 1970 91 92 86 62 60 49 46 53 59 53 52 80 65 1971 84 85 84 84 73 62 40 39 40 53 58 71 64 1972 79 79 84 83 68 60 47 47 47 56 68 74 66 1973 78 76 71 70 63 63 56 57 55 60 61 64 65 1974 73 73 73 63 50 56 59 63 60 60 62 66 63 1975 69 67 66 60 64 59 57 66 69 67 66 68 65 1976 66 64 67 65 67 68 64 58 62 66 60 61 64 1977 54 66 64 66 61 66 65 62 62 61 66 60 63 1978 63 57 57 60 65 63 47 49 50 62 70 83 61 1979 76 69 77 68 73 80 77 78 76 78 72 75 75 1980 62 79 75 66 67 51 58 62 71 74 70 70 67 1981 73 73 70 69 64 67 59 65 60 70 70 68 67 1982 72 63 67 65 66 59 62 59 *** 68 64 *** *** 1983 *** *** 72 60 65 64 58 59 59 63 68 65 *** 1984 68 55 70 52 62 59 54 62 69 67 64 61 62 1985 64 62 57 60 68 66 66 64 60 *** 55 *** *** 1986 61 66 67 64 60 62 55 49 47 68 73 63 61 1987 51 67 62 52 48 45 45 54 54 75 50 65 56 1988 67 60 55 57 57 51 55 61 57 65 50 63 58 1989 74 68 68 48 49 47 46 49 56 61 69 66 58 1990 73 78 65 64 55 46 47 59 51 63 48 66 60 1991 71 67 73 55 57 59 48 52 53 61 71 78 62 1992 72 74 70 62 64 64 55 54 55 45 59 72 62 1993 74 76 62 56 61 58 52 52 53 54 77 70 62 1994 60 61 63 58 63 61 51 55 47 63 67 67 60 1995 65 66 57 60 51 54 49 54 62 56 41 59 56 1996 69 65 71 59 61 50 48 49 49 55 66 60 59 1997 55 59 62 42 53 56 56 50 58 47 60 60 55 1998 72 62 54 51 57 47 46 50 58 53 57 60 56 1999 61 46 54 60 63 48 42 49 62 58 64 53 55 2000 64 60 56 46 53 46 39 46 66 70 69 65 57 MEAN 69 67 67 62 61 58 54 56 58 63 64 67 62 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 86 85 85 86 84 89 77 80 84 85 74 85 83 1965 81 83 83 80 75 81 75 74 79 88 73 69 78 1966 75 79 80 84 88 75 67 71 85 90 83 77 80 1967 82 86 87 81 86 81 74 74 82 82 85 79 82 1968 84 79 83 85 78 82 72 76 74 79 83 82 80 1969 89 84 85 83 84 81 75 70 79 85 88 94 83 1970 95 96 93 80 79 72 64 69 77 72 62 88 79 1971 91 91 92 90 85 73 55 58 57 74 73 80 77 1972 87 86 91 92 81 77 63 67 65 71 83 85 79 1973 85 85 83 81 76 77 73 71 70 74 74 75 77 1974 83 83 81 75 66 72 73 72 74 70 73 77 75 1975 79 78 78 72 80 74 72 74 76 83 77 80 77 1976 77 76 79 75 77 76 74 70 72 78 68 73 75 1977 67 78 72 76 68 78 77 76 75 76 79 73 75 1978 73 68 73 70 83 76 66 61 70 76 83 91 74 1979 87 80 89 80 83 87 86 90 86 89 86 85 86 1980 76 89 83 80 80 72 83 81 90 88 85 85 83 1981 86 84 86 84 81 80 78 83 80 85 82 86 83 1982 84 73 78 84 82 77 85 80 *** 79 79 *** *** 1983 *** *** 83 77 77 83 77 78 79 79 81 78 *** 1984 80 69 82 73 77 76 77 77 77 78 79 74 77 1985 78 76 69 75 76 79 78 79 79 *** 72 *** *** 1986 72 79 81 80 82 83 75 70 69 85 83 72 78 1987 61 78 77 74 70 67 62 74 74 86 62 73 72 1988 73 71 72 77 79 78 77 81 76 82 65 75 76 1989 81 77 87 73 76 70 63 68 81 76 80 79 76 1990 84 86 82 83 79 71 64 75 71 81 62 76 76 1991 82 81 87 81 80 83 69 72 76 80 86 87 80 1992 85 86 86 83 84 89 73 74 79 64 72 82 80 1993 84 84 79 77 86 85 73 75 78 75 86 78 80 1994 74 75 79 82 86 84 71 73 68 82 79 75 77 1995 75 82 78 80 76 80 68 74 81 76 56 74 75 1996 80 80 87 80 86 71 69 68 74 73 80 72 77 1997 67 69 77 65 78 81 76 68 80 67 76 72 73 1998 82 72 74 72 80 67 65 70 81 72 73 73 73 1999 75 63 75 80 90 72 60 73 84 78 77 65 74 2000 74 72 74 72 78 64 56 62 83 87 84 77 74 MEAN 80 80 81 79 80 77 71 73 77 79 77 78 78 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 57 60 58 63 51 57 52 56 53 48 44 55 55 1965 38 45 55 45 40 40 44 39 51 62 44 35 45 1966 47 45 49 48 56 43 35 38 54 59 53 53 48 1967 53 38 56 54 52 46 46 41 46 48 58 49 49 1968 56 51 49 55 43 50 42 38 33 47 58 60 49 1969 66 38 66 61 48 39 44 37 45 53 66 85 54 1970 86 87 78 46 40 33 31 40 43 37 43 71 53 1971 77 78 76 76 59 49 27 22 25 35 42 61 52 1972 70 73 77 69 55 43 35 32 27 44 53 61 53 1973 72 66 60 60 51 49 41 45 43 48 49 52 53 1974 60 62 65 52 36 43 47 54 46 49 53 56 52 1975 59 56 52 49 49 46 46 60 62 53 54 55 53 1976 54 53 56 55 59 60 55 46 53 55 52 48 54 1977 40 52 55 57 55 56 54 51 50 49 55 47 52 1978 53 46 44 51 49 51 34 39 34 48 56 73 48 1979 66 58 66 56 65 71 68 67 65 66 58 65 64 1980 48 70 65 49 54 36 40 48 52 60 55 56 53 1981 61 60 54 54 48 56 45 50 42 56 61 52 53 1982 61 51 56 47 53 43 47 44 *** 55 49 *** *** 1983 *** *** 61 45 54 50 45 44 42 51 56 53 *** 1984 56 38 58 36 45 45 37 48 62 57 51 48 48 1985 47 50 42 46 58 52 55 49 41 *** 40 *** *** 1986 52 57 57 53 42 47 40 35 33 56 64 55 49 1987 42 56 49 37 31 31 35 39 41 67 39 58 44 1988 61 51 43 41 40 33 41 48 44 51 38 53 45 1989 68 61 55 32 32 31 35 37 41 50 60 55 46 1990 65 70 52 50 40 30 37 48 38 48 37 56 48 1991 61 55 63 37 40 42 34 40 38 47 58 68 49 1992 62 64 57 47 49 45 42 40 40 31 47 62 49 1993 66 69 50 41 43 42 39 37 37 39 70 62 50 1994 49 49 51 42 46 44 40 44 33 49 56 60 47 1995 52 54 42 45 34 37 38 42 48 42 30 46 43 1996 59 53 59 45 42 36 35 37 33 41 53 48 45 1997 44 51 50 25 34 39 44 38 44 34 46 48 41 1998 63 54 41 36 41 33 32 38 43 39 45 48 43 1999 49 34 41 45 45 33 31 34 47 43 53 42 41 2000 54 49 44 30 36 34 28 35 54 55 56 53 44 MEAN 58 56 55 48 46 44 41 43 44 49 51 56 49 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 1 2 1 8 2 5 0 1 0 0 0 1 21 1965 4 2 2 1 2 2 1 0 3 8 0 2 27 1966 2 1 3 3 5 1 0 0 4 5 1 1 26 1967 2 2 4 6 4 1 0 0 1 3 4 1 28 1968 3 2 3 5 0 4 0 1 0 3 4 4 29 1969 3 3 8 7 2 3 1 0 1 2 2 3 35 1970 1 0 0 2 4 1 0 0 0 0 1 2 11 1971 2 2 1 7 4 0 1 0 0 1 1 1 20 1972 2 0 3 0 1 5 0 1 2 0 1 3 18 1973 2 2 2 5 3 2 0 0 0 0 0 1 17 1974 2 3 3 3 4 4 2 0 1 0 0 1 23 1975 2 1 4 3 7 2 0 0 0 3 2 1 25 1976 1 3 1 4 10 1 0 0 1 4 2 1 28 1977 3 1 3 3 5 3 0 0 1 3 2 6 30 1978 2 1 1 0 3 5 0 0 1 1 4 2 20 1979 2 4 5 5 5 6 0 0 0 6 0 0 33 1980 5 2 4 2 3 1 0 0 0 4 0 1 22 1981 1 1 3 9 8 6 0 1 0 1 3 1 34 1982 5 1 2 4 6 3 2 0 2 8 7 *** *** 1983 3 0 1 3 4 0 0 2 2 1 2 1 19 1984 1 1 0 0 3 1 2 0 1 2 7 1 19 1985 2 3 2 1 2 2 0 0 0 *** 0 *** *** 1986 2 1 2 1 7 8 0 1 2 0 2 2 28 1987 0 0 2 4 3 3 0 2 0 4 1 3 22 1988 1 1 2 4 3 3 1 2 0 1 1 2 21 1989 1 0 3 1 3 1 0 1 3 4 1 0 18 1990 3 0 3 6 2 0 0 0 0 3 0 2 19 1991 0 1 5 1 3 4 0 0 0 3 2 4 23 1992 1 2 1 2 5 7 1 0 0 1 3 2 25 1993 1 6 4 4 6 2 1 1 0 2 6 2 35 1994 2 0 4 2 4 3 0 0 1 2 5 2 25 1995 2 1 2 4 1 4 0 0 2 1 0 0 17 1996 1 2 4 3 4 0 1 0 1 3 2 0 21 1997 1 3 3 2 5 5 1 0 2 0 1 2 25 1998 2 1 1 4 2 1 2 0 1 2 1 1 18 1999 0 0 5 4 5 1 0 2 2 4 1 0 24 2000 1 3 3 1 1 0 0 0 4 2 3 1 19 MEAN 2 2 3 3 4 3 0 0 1 2 2 2 24 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. HIGHEST AND LOWEST LIMITS FOR 37 YEARS DURING 1964-2000 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 9.8 10.4 15.6 18.2 21.2 20.2 23.0 30.0 31.0 20.6 18.0 13.4 1 YEAR - DAY 1966-24 1978-17 1970-31 1972-29 1970-23 1998-27 1972-12 1979-17 1979- 2 1973-21 1979-15 1998-10 LOW. DRY 03 -22.6 -24.4 -17.4 -10.0 -2.6 2.2 8.0 7.4 3.0 -9.2 -15.5 -19.4 2 YEAR - DAY 1973-26 1972- 7 1985- 3 1990- 4 1992- 5 1967- 5 1969- 6 1992-12 1997-14 1977-23 1973- 7 1972-25 HIG. WET 03 6.0 7.8 12.4 15.2 16.2 16.8 20.0 27.4 27.0 17.2 15.0 9.4 3 YEAR - DAY 1971- 4 1970-18 1970-31 1972-29 1985-30 1972-22 1980- 8 1979-16 1979- 2 1979-16 1979-15 1969-22 LOW. WET 03 -22.6 -24.5 -19.0 -9.8 -2.8 2.0 5.0 4.2 1.4 -10.4 -15.7 -19.4 4 YEAR - DAY 1973-26 1972- 7 1985- 3 1990- 4 1992- 5 1967- 5 1973-16 1971- 5 1977-30 1977-23 1973- 7 1972-25 HIG. DRY 09 24.0 18.0 22.0 28.2 31.0 34.4 37.4 38.6 33.0 30.0 24.0 19.6 5 YEAR - DAY 1972-29 1966-27 1970-31 1997-26 1974-22 1966-10 1973-27 1976- 7 1978-18 1971- 1 1972- 2 1998-10 LOW. DRY 09 -11.8 -12.8 -9.6 -2.2 1.0 8.8 13.4 12.2 7.6 -2.0 -8.0 -11.0 6 YEAR - DAY 1964-19 1993-16 1976- 2 1990- 2 1992- 2 1968- 7 1992-11 1987-28 1969-11 1977-22 1973- 7 1967-24 HIG. WET 09 14.0 12.2 18.2 24.2 23.2 29.8 29.0 30.0 30.6 23.0 18.2 16.8 7 YEAR - DAY 1971- 5 1970-28 1968- 8 1985-19 1985-31 1966- 6 1966-27 1979-15 1979- 2 1979-16 1979- 2 1979- 4 LOW. WET 09 -12.4 -13.0 -11.8 -6.0 -0.8 6.4 10.0 10.0 6.4 -3.4 -10.4 -11.2 8 YEAR - DAY 1964-19 1993-16 1976- 2 1971- 2 1992- 2 1968- 7 1970-23 1975- 8 1969-11 1977-22 1973- 7 1967-24 HIG. DRY 15 13.4 14.8 18.0 27.0 28.8 34.0 35.0 35.2 33.2 28.0 20.4 17.0 9 YEAR - DAY 1966- 6 1978-17 1991-30 1997-26 1989-24 1998-22 1984-20 1998-30 1989- 1 1971- 1 1972- 2 1973- 1 LOW. DRY 15 -16.4 -16.0 -10.6 -4.0 1.4 6.2 11.4 12.0 6.8 -4.0 -14.2 -12.6 10 YEAR - DAY 1973-26 1974-16 1985- 3 1981- 1 1992- 3 1968- 7 1992-11 1970-30 1969-11 1977-22 1973- 7 1988-28 HIG. WET 15 12.0 10.0 14.6 21.0 20.2 26.0 28.0 27.2 27.0 19.2 16.0 12.2 11 YEAR - DAY 1971- 5 1978-17 1970-31 1985-19 1975-31 1976-25 1966-26 1979-15 1979- 9 1979- 1 1979-24 1979- 4 LOW. WET 15 -17.0 -16.0 -12.0 -5.0 0.4 5.0 8.0 7.4 5.4 -4.5 -14.7 -13.8 12 YEAR - DAY 1973-26 1974-16 1985- 3 1981- 1 1992- 2 1968- 7 1971-28 1975- 8 1977-30 1977-22 1973- 7 1975- 4 HIG. MIN. 7.4 6.0 15.0 15.4 16.8 19.6 21.4 25.0 24.0 17.0 12.0 11.8 13 YEAR - DAY 1987-31 1996- 9 1970-31 1993-19 1987-23 1998-27 1996-25 1979-16 1979- 2 1973-21 1989-29 1998-10 LOW. MIN. -25.0 -27.5 -23.0 -11.5 -4.0 0.5 2.5 4.0 0.5 -11.5 -18.5 -21.5 14 YEAR - DAY 1973-26 1972- 7 1985- 3 1976- 2 1992- 5 1978- 2 1966-30 1973-22 1977-30 1977-23 1973- 7 1972-25 HIG. MAX. 24.0 20.0 23.0 29.6 32.5 37.0 40.0 39.5 36.5 33.0 28.0 21.0 15 YEAR - DAY 1972-29 1978-17 1978-28 1997-26 1965-20 1975-30 1973-27 1976- 7 1972-29 1973-21 1972- 2 1979- 4 LOW. MAX. -10.5 -8.0 -5.5 0.0 2.0 9.6 14.8 13.6 9.8 -0.4 -5.0 -8.0 16 YEAR - DAY 1964-19 1993-16 1985- 2 1990- 3 1992- 2 1994-28 1992-12 1987-28 1997- 8 1987-28 1973- 7 1994- 6 HIG. PPTN 32.5 29.0 29.8 28.0 47.0 31.0 17.0 21.5 38.6 34.0 45.2 25.0 17 YEAR - DAY 1965- 9 1979-28 1966-20 1969- 2 1976-15 1982-24 1982- 2 1988- 4 1969-11 1989-29 1966- 7 1987-26 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 37 YEARS DURING 1964-2000 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 25.4 20.4 22.2 19.6 19.4 22.0 20.2 25.6 21.4 22.8 27.4 18.6 18 YEAR - DAY 1972-29 1972- 7 1968-15 1970-13 1970-22 1974-22 1969-13 1976- 7 1964-19 1964- 8 1973-25 1979- 4 DRY 15 - DRY 09 25.2 14.0 13.8 14.2 13.3 14.2 13.0 12.8 12.0 15.0 19.0 9.4 19 YEAR - DAY 1972-29 1985-11 1968- 8 1974-21 1970-26 1969- 6 1971-21 1965- 7 1983-13 1964-15 1982- 7 1969-15 DRY 15 - DRY 03 16.0 19.6 17.2 18.0 17.8 18.4 18.4 19.8 18.6 20.0 20.0 16.0 20 YEAR - DAY 1982-19 1972- 7 1999- 6 1993-23 1999- 6 1996-29 1969-13 1997-31 1987- 5 1971-24 1979-24 1979- 4 WET 09 - WET 03 16.4 18.9 17.0 16.2 15.8 19.0 18.0 18.4 15.0 18.8 21.4 18.0 21 YEAR - DAY 1985-26 1972- 7 1968- 8 1985-19 1973-31 1974-22 1973-16 1966-30 1979- 9 1981-26 1973-25 1979- 4 WET 15 - WET 09 12.4 12.6 14.0 10.0 8.4 11.8 13.0 12.0 11.0 14.8 11.6 10.4 22 YEAR - DAY 1984-26 1985-11 1968- 8 1978-20 1982-20 1966- 7 1966-27 1966-30 1979-17 1972-26 1982- 7 1965-25 WET 15 - WET 03 15.2 19.3 13.0 13.0 12.4 14.2 12.6 14.0 14.8 15.0 17.4 13.6 23 YEAR - DAY 1982-19 1972- 7 1985-17 1985-19 1973-31 1968-11 1966-26 1976- 7 1971-15 1979- 1 1979-24 1979- 1 DAY BY DAY DRY 03 18.0 20.2 17.4 17.2 12.6 9.8 9.8 12.0 15.0 11.8 13.0 15.4 24 YEAR - DAY 1973-26 1972-23 1968-15 1993-23 1970-23 1973-19 1971-17 1979-18 1979- 2 1969-30 1973-11 1973-21 DAY BY DAY WET 03 16.8 20.3 13.6 12.9 8.8 10.8 8.0 10.2 14.0 11.6 11.8 15.2 25 YEAR - DAY 1973-26 1972-23 1991-13 1993-23 1974-27 1973-19 1973-16 1979-30 1979-14 1965-30 1973-11 1969-23 DAY BY DAY DRY 09 26.4 16.0 18.0 18.6 18.0 16.8 15.4 15.0 17.0 18.4 16.4 16.0 26 YEAR - DAY 1972-30 1996-26 1974- 1 1993-20 1980- 5 1995-22 1973-27 1965- 8 1987-23 1964- 3 1994- 5 1973-19 DAY BY DAY WET 09 15.4 11.6 16.0 18.0 10.5 12.0 10.8 13.4 11.8 12.8 12.6 15.6 27 YEAR - DAY 1973-26 1974-24 1974- 1 1971- 2 1971-15 1971- 3 1980-28 1975- 1 1965- 4 1982- 6 1977-10 1973-21 DAY BY DAY DRY 15 15.0 15.6 15.8 16.4 13.6 15.6 11.8 13.0 13.4 16.0 17.0 18.2 28 YEAR - DAY 1964-18 1987- 4 1974- 1 1978-11 2000- 4 1995-22 1986-30 1975- 1 1987-23 1977-11 1973-11 1973-21 DAY BY DAY WET 15 13.0 13.4 14.4 11.8 9.4 11.2 12.0 11.0 10.8 13.2 13.5 17.0 29 YEAR - DAY 1964-18 1974-17 1974- 1 1978-11 1971- 5 1976- 7 1966-27 1984-27 1965- 4 1979-29 1973-11 1973-21 DAY BY DAY MIN. 16.5 24.0 15.0 17.0 10.0 7.6 11.5 11.0 14.0 11.5 13.5 21.0 30 YEAR - DAY 1980-30 1972-22 1974-20 1974- 1 1970-23 1987- 2 1973-23 1979-30 1979-14 1969-30 1973-11 1965-28 DAY BY DAY MAX. 22.0 15.6 17.5 17.0 14.4 14.5 13.0 14.5 14.5 17.5 15.0 20.3 31 YEAR - DAY 1972-29 1987- 5 1974- 1 1978-11 1999- 8 1978-10 1965-23 1975- 1 1975- 1 1964- 3 1977-10 1973-18 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -7.8 0.5 6.0 7.6 15.7 19.9 21.2 20.0 17.0 11.9 8.1 1.2 10.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -14.1 -4.1 0.4 2.4 7.8 12.1 14.1 13.3 9.9 3.6 0.9 -3.7 3.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. -1.6 5.0 11.7 12.8 23.5 27.8 28.4 26.6 24.1 20.2 15.2 6.0 16.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.5 9.1 11.3 10.4 15.7 15.6 14.3 13.3 14.2 16.6 14.3 9.7 13.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.32 2.97 4.42 4.92 7.62 10.11 10.80 10.53 8.60 5.37 4.19 3.03 6.16 MEAN OF MIXING RATIO AT 09 GMT. 2.73 3.68 5.20 5.70 9.88 13.82 13.08 12.68 10.77 7.06 5.03 3.53 7.76 MEAN OF MIXING RATIO AT 15 GMT. 1.90 3.44 5.24 5.72 9.89 12.78 12.40 11.84 9.44 6.56 4.46 3.60 7.27 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -22.0 -9.5 -8.5 -2.0 1.5 8.5 11.5 9.5 5.0 -1.0 -10.5 -13.5 -22.0 DAY 23 16 12 13 2 20 16 28 19 8 27 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.0 10.0 20.0 22.5 29.5 31.5 32.5 34.0 30.0 30.5 27.5 15.5 34.0 DAY 17 2 26 27 30 2 17 13 11 15 6 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 19.5 9.2 26.4 5.8 20.0 0.0 6.0 0.0 3.5 3.5 7.5 26.4 DAY 19 4 26 8 1 21 ** 17 ** 3 21 13 MONTHLY TOTAL PRECIPITATION IN MM. 6.0 35.2 18.3 112.2 17.3 59.4 0.0 10.5 0.0 6.0 3.5 7.5 275.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 21.6 68.5 3.8 6.2 NO. OF DAYS WITH PRECIPITATION. 1 5 7 12 5 7 0 2 0 2 1 1 43 NO. OF DAYS PRECIPITATION EQUAL 1 5 6 12 5 7 0 2 0 2 1 1 42 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 4 0 2 0 0 0 0 0 0 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 65 78 80 84 83 88 77 80 83 84 72 79 79 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 78 66 62 64 52 57 53 57 55 49 49 59 58 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 75 72 75 67 75 62 64 63 63 59 76 68 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 15 4 0 0 0 0 0 0 0 3 16 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 22 0 0 0 0 0 0 0 0 0 0 2 24 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 7 4 1 1 0 0 22 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 15 5 0 0 0 0 0 3 10 28 120 DATE OF START AND END FREEZING START = 8 OCT. END = 18 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -2.7 0.3 6.2 9.0 15.8 18.8 20.4 21.4 17.0 9.1 7.9 1.7 10.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.1 -4.7 -0.0 2.5 7.5 10.9 12.2 11.7 8.4 2.4 0.7 -7.8 3.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.7 5.2 12.4 15.5 24.0 26.6 28.6 31.2 25.5 15.7 15.1 11.2 17.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.8 9.9 12.4 13.0 16.5 15.7 16.4 19.5 17.1 13.3 14.4 19.0 14.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.62 2.56 4.81 4.84 6.70 8.79 9.83 9.51 8.48 5.83 4.02 3.01 5.83 MEAN OF MIXING RATIO AT 09 GMT. 3.53 3.70 4.76 5.04 7.22 9.27 10.18 14.10 10.61 6.98 5.08 3.72 7.02 MEAN OF MIXING RATIO AT 15 GMT. 2.19 3.16 4.87 5.57 7.09 9.55 10.50 9.98 9.71 6.36 4.71 3.05 6.40 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.0 -15.0 -7.0 -7.0 3.5 8.0 9.5 10.0 3.0 -9.5 -5.0 -20.0 -20.0 DAY 18 17 16 5 4 11 9 9 30 29 20 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.5 10.5 19.6 26.0 32.5 31.5 35.0 36.5 35.5 26.5 19.0 19.0 36.5 DAY 6 28 10 26 20 8 16 13 7 12 17 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 32.5 9.8 18.0 22.0 22.4 13.4 6.2 1.5 13.5 27.2 0.0 15.2 32.5 DAY 9 15 24 20 2 25 26 21 29 19 ** 29 MONTHLY TOTAL PRECIPITATION IN MM. 61.4 20.9 36.1 33.4 34.5 33.1 10.0 1.5 34.0 119.6 0.0 24.6 409.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 28.9 24.7 11.1 35.2 NO. OF DAYS WITH PRECIPITATION. 6 3 6 5 4 5 3 1 4 8 0 3 48 NO. OF DAYS PRECIPITATION EQUAL 6 3 6 5 4 5 3 1 4 8 0 3 48 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 1 1 1 0 0 1 5 0 1 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 43 62 81 74 73 80 75 73 78 84 71 59 71 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 75 71 58 46 42 41 46 49 53 66 45 46 53 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 54 63 67 64 52 58 54 46 60 72 57 46 58 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 14 4 2 0 0 0 0 0 3 2 20 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 14 0 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 2 4 10 21 7 0 0 0 44 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 16 6 0 0 0 0 0 7 11 29 126 DATE OF START AND END FREEZING START = 24 OCT. END = 10 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. 6.1 4.7 6.0 10.2 13.3 19.7 19.2 19.8 16.6 11.7 5.7 2.1 11.3 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.0 -1.6 -0.7 3.1 6.4 11.5 8.2 9.5 9.9 5.7 -3.9 -6.9 3.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.2 11.0 12.8 17.3 20.2 27.9 30.2 30.1 23.2 17.7 15.3 11.2 19.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.2 12.6 13.5 14.2 13.8 16.4 22.0 20.6 13.3 12.0 19.2 18.1 15.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.14 3.74 3.90 5.77 7.22 9.24 8.30 9.12 8.83 6.78 4.64 3.59 6.27 MEAN OF MIXING RATIO AT 09 GMT. 3.95 3.76 4.69 5.74 8.13 12.10 11.00 11.28 9.44 7.92 5.81 4.61 7.37 MEAN OF MIXING RATIO AT 15 GMT. 4.07 3.67 4.49 5.54 8.18 9.00 9.94 10.46 9.29 7.64 5.40 4.22 6.83 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.0 -7.5 -7.0 -8.0 1.5 5.0 2.5 7.0 6.5 1.5 -9.5 -12.5 -12.5 DAY 10 7 1 1 3 15 30 15 18 18 30 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.0 18.0 21.0 24.5 27.5 35.5 39.0 34.5 31.0 22.0 26.5 16.5 39.0 DAY 7 26 17 20 31 10 25 30 9 19 29 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.8 13.4 29.8 12.8 23.8 8.2 0.0 0.0 16.4 30.5 45.2 6.2 45.2 DAY 30 2 20 23 7 1 ** ** 14 9 7 19 MONTHLY TOTAL PRECIPITATION IN MM. 16.8 13.4 57.2 35.4 74.5 8.7 0.0 0.0 51.7 84.8 51.8 6.2 400.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 21.8 29.6 12.9 35.7 NO. OF DAYS WITH PRECIPITATION. 3 1 4 6 7 2 0 0 9 7 4 1 44 NO. OF DAYS PRECIPITATION EQUAL 3 1 4 6 7 1 0 0 9 7 3 1 42 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 2 1 2 0 0 0 2 3 1 0 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 74 76 76 84 86 74 65 68 84 89 82 70 77 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 49 47 52 49 59 51 39 43 55 63 59 59 52 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 59 63 57 69 52 44 49 65 71 64 65 60 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 4 5 3 0 0 0 0 0 0 18 20 50 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 1 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 11 20 19 1 0 0 0 51 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. 12 21 18 4 0 0 0 0 0 0 25 28 108 DATE OF START AND END FREEZING START = 6 NOV. END = 5 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. 1.4 -2.2 3.2 7.8 14.8 16.8 19.0 19.5 16.3 12.9 7.2 2.4 9.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.1 -7.0 -1.6 1.8 7.3 8.6 11.5 10.9 8.5 5.5 1.7 -3.5 3.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.8 2.5 8.0 13.8 22.3 24.9 26.4 28.1 24.2 20.2 12.6 8.3 16.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.9 9.5 9.6 12.0 15.0 16.3 14.9 17.2 15.7 14.7 10.9 11.8 13.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.18 1.98 3.66 4.67 7.20 8.13 9.42 9.68 8.06 6.26 5.03 3.52 5.90 MEAN OF MIXING RATIO AT 09 GMT. 4.07 3.25 3.96 5.16 8.34 9.23 10.22 10.30 8.81 7.02 5.21 3.56 6.59 MEAN OF MIXING RATIO AT 15 GMT. 3.35 3.02 4.14 5.19 8.29 8.70 10.10 10.11 8.38 6.95 5.19 3.49 6.41 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.4 -18.5 -9.0 -6.5 2.5 1.5 8.5 6.5 5.0 1.0 -9.0 -17.5 -18.5 DAY 26 3 1 1 7 5 2 29 30 15 30 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 11.5 13.5 19.0 28.0 33.5 30.0 30.5 30.5 24.0 23.5 12.5 33.5 DAY 16 11 4 17 23 16 7 4 14 10 2 14 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.5 5.8 15.8 12.5 20.5 9.5 1.2 0.0 10.7 8.8 7.5 9.5 20.5 DAY 17 27 8 13 18 5 29 ** 23 3 11 22 MONTHLY TOTAL PRECIPITATION IN MM. 19.3 21.1 52.1 59.0 79.4 15.0 1.2 0.0 19.0 23.0 27.7 15.5 332.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.8 46.2 6.1 19.9 NO. OF DAYS WITH PRECIPITATION. 3 7 9 12 10 4 1 0 4 5 6 3 64 NO. OF DAYS PRECIPITATION EQUAL 3 7 9 10 10 4 1 0 4 5 6 3 62 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 2 1 4 0 0 0 1 0 0 0 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 50 84 78 85 81 74 74 82 81 84 78 77 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 66 67 59 54 54 48 47 41 47 49 59 55 54 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 77 71 66 69 58 58 52 58 63 70 61 64 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 17 19 8 3 0 0 0 0 0 0 3 12 62 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 5 0 0 0 0 0 0 0 0 0 1 6 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 1 2 2 0 0 0 7 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 27 24 10 0 0 0 0 0 0 11 26 128 DATE OF START AND END FREEZING START = 16 NOV. END = 15 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -0.5 -0.4 4.7 8.9 14.8 16.6 20.6 20.3 18.3 12.8 7.9 2.4 10.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.6 -6.6 -2.2 1.6 7.8 9.2 11.7 11.5 8.5 5.1 2.4 -2.2 3.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.5 5.9 11.5 16.1 21.9 23.9 29.5 29.2 28.1 20.6 13.3 7.0 17.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.1 12.5 13.7 14.5 14.1 14.7 17.8 17.7 19.6 15.5 10.9 9.2 14.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.04 2.68 3.62 5.10 7.27 8.27 9.07 9.43 7.34 6.34 5.00 3.55 5.89 MEAN OF MIXING RATIO AT 09 GMT. 3.30 3.46 4.29 5.99 6.99 8.87 11.15 9.89 7.92 7.07 5.47 3.77 6.51 MEAN OF MIXING RATIO AT 15 GMT. 3.27 2.92 3.74 5.83 7.28 9.03 9.92 9.86 7.64 7.16 5.66 3.88 6.35 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -22.0 -8.5 -4.5 2.5 4.5 7.5 6.5 4.5 0.0 -1.5 -6.0 -22.0 DAY 23 6 15 3 1 8 15 26 8 28 19 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.5 15.5 18.5 24.0 27.5 30.5 37.0 35.5 31.5 27.0 17.0 11.5 37.0 DAY 13 29 8 14 19 18 20 16 21 18 25 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.5 12.5 10.5 16.8 4.8 10.2 0.0 5.5 0.0 17.5 14.4 7.5 17.5 DAY 26 2 30 16 26 14 ** 19 ** 25 3 5 MONTHLY TOTAL PRECIPITATION IN MM. 22.0 22.1 31.5 68.5 23.3 50.2 0.0 5.5 0.0 38.3 57.2 31.5 350.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 21.6 40.6 1.6 36.3 NO. OF DAYS WITH PRECIPITATION. 3 3 5 9 7 11 0 1 0 5 10 7 61 NO. OF DAYS PRECIPITATION EQUAL 3 3 5 9 7 10 0 1 0 5 9 7 59 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 3 0 1 0 0 0 1 2 0 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 68 80 83 77 82 72 75 73 78 82 79 77 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 64 54 58 44 50 44 39 34 48 59 62 51 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 64 61 67 57 63 51 51 45 59 69 71 61 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 16 12 1 0 0 0 0 0 0 0 8 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 0 4 0 0 0 0 0 0 0 0 0 1 5 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 15 9 11 0 0 0 36 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 24 22 12 0 0 0 0 0 1 4 26 118 DATE OF START AND END FREEZING START = 28 OCT. END = 26 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -3.2 -2.8 4.8 8.2 15.4 19.7 19.1 19.0 15.3 11.6 7.4 4.7 9.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.4 -7.8 -0.4 2.6 7.9 10.7 11.2 8.8 6.6 5.7 2.2 -0.9 3.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.0 2.1 10.0 13.7 22.8 28.7 27.1 29.3 23.9 17.6 12.5 10.3 16.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.4 9.9 10.4 11.1 14.9 18.0 15.9 20.5 17.3 11.9 10.3 11.2 13.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.59 1.87 4.23 5.09 7.42 8.82 9.13 8.51 7.27 6.40 5.15 4.76 5.94 MEAN OF MIXING RATIO AT 09 GMT. 3.07 3.67 4.79 5.72 8.04 9.57 9.71 9.25 7.84 6.41 6.71 7.15 6.83 MEAN OF MIXING RATIO AT 15 GMT. 2.96 2.71 4.64 5.54 8.08 8.90 8.91 8.70 7.89 6.80 5.93 5.63 6.39 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.5 -13.5 -8.0 -1.5 1.0 4.5 7.0 6.0 1.5 -6.5 -3.0 -12.0 -18.5 DAY 8 4 24 3 7 1 6 13 28 30 15 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 11.5 18.5 25.5 31.0 34.5 36.0 35.0 32.5 32.0 17.5 15.5 36.0 DAY 20 28 31 29 13 11 14 3 7 2 6 22 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 9.6 25.4 28.0 7.5 25.7 5.0 0.2 38.6 9.3 9.4 13.3 38.6 DAY 28 20 8 2 20 15 5 5 11 21 1 27 MONTHLY TOTAL PRECIPITATION IN MM. 35.3 25.8 111.4 99.7 28.3 65.8 5.0 0.2 41.8 32.6 18.3 37.0 501.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 34.4 38.7 9.4 17.5 NO. OF DAYS WITH PRECIPITATION. 8 5 13 17 8 5 1 1 4 12 2 5 81 NO. OF DAYS PRECIPITATION EQUAL 8 5 11 15 7 5 1 0 3 12 2 4 73 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 4 2 0 3 0 0 1 0 0 2 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 41 83 81 83 80 75 70 79 82 86 91 78 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 74 78 68 63 49 41 45 37 45 54 69 87 59 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 62 75 70 62 49 48 44 58 66 78 91 65 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 24 4 0 0 0 0 0 0 1 0 11 63 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 11 1 0 0 0 0 0 0 0 0 0 26 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 14 5 10 4 1 0 0 38 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 17 8 0 0 0 0 0 1 5 14 102 DATE OF START AND END FREEZING START = 30 OCT. END = 15 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -1.5 3.4 6.0 11.6 15.0 17.6 19.6 20.4 15.3 11.4 9.0 1.1 10.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.9 -3.1 0.7 4.9 7.5 8.8 10.7 12.8 7.9 2.9 2.7 -2.4 3.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.9 9.9 11.4 18.4 22.6 26.4 28.5 27.9 22.6 19.9 15.4 4.6 17.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.8 13.0 10.7 13.5 15.1 17.6 17.8 15.1 14.7 17.0 12.7 7.0 13.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.53 4.32 4.55 5.55 6.58 7.53 7.84 9.48 7.33 5.43 4.47 3.65 5.85 MEAN OF MIXING RATIO AT 09 GMT. 5.51 7.31 7.48 6.14 6.90 7.03 7.88 9.51 9.56 5.73 4.89 4.27 6.85 MEAN OF MIXING RATIO AT 15 GMT. 4.32 5.86 6.50 6.39 7.24 6.92 7.80 9.48 6.94 5.48 4.76 3.83 6.29 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.0 -9.0 -7.0 -1.5 3.5 3.3 7.0 8.0 2.0 -0.5 -2.5 -8.0 -10.0 DAY 6 25 11 22 4 11 8 30 27 8 21 15 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 14.5 22.5 28.3 29.5 32.0 34.5 38.0 30.0 28.5 22.0 13.0 38.0 DAY 19 28 31 14 23 21 20 27 6 5 3 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.3 0.0 3.0 15.0 12.0 12.0 0.8 3.0 4.0 4.0 19.0 18.7 19.0 DAY 22 ** 10 19 11 10 4 19 12 15 29 13 MONTHLY TOTAL PRECIPITATION IN MM. 20.5 0.0 10.4 29.3 42.1 14.0 1.4 3.0 4.0 4.0 35.6 33.4 197.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 15.6 43.2 4.2 36.9 NO. OF DAYS WITH PRECIPITATION. 7 0 6 7 10 2 2 1 1 1 7 4 48 NO. OF DAYS PRECIPITATION EQUAL 6 0 4 5 10 2 0 1 1 1 7 4 41 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 1 1 1 0 0 0 0 1 2 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 93 89 76 76 71 64 68 76 71 57 84 76 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 93 88 81 48 42 34 33 43 56 40 47 74 57 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 91 95 88 63 60 44 40 49 47 48 52 82 63 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 15 5 0 0 0 0 0 0 0 0 10 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 3 0 1 0 0 0 0 0 0 0 0 2 6 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 12 10 2 0 0 0 30 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 19 16 2 0 0 0 0 0 6 7 26 107 DATE OF START AND END FREEZING START = 8 OCT. END = 23 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -0.5 -1.6 6.8 7.6 14.3 15.8 19.8 19.9 19.6 13.5 8.9 1.3 10.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.5 -4.3 1.8 2.3 7.4 6.5 10.0 10.5 9.3 3.9 1.9 -4.1 3.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.5 1.1 11.7 12.9 21.2 25.2 29.7 29.4 29.9 23.0 16.0 6.7 17.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.0 5.4 9.9 10.6 13.8 18.7 19.7 18.9 20.6 19.1 14.1 10.8 14.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.22 3.07 5.06 5.46 7.99 7.04 7.00 6.69 6.46 5.34 4.58 3.32 5.44 MEAN OF MIXING RATIO AT 09 GMT. 4.90 3.93 7.24 7.97 9.42 11.50 8.06 5.95 7.88 6.71 4.75 3.92 6.85 MEAN OF MIXING RATIO AT 15 GMT. 4.18 3.45 6.50 6.80 10.76 8.99 6.89 6.38 7.89 7.33 5.22 3.44 6.49 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -15.0 -4.5 -6.3 4.5 2.5 4.5 6.0 6.5 -1.5 -1.0 -13.0 -15.0 DAY 30 14 8 3 2 20 13 5 9 28 20 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 10.0 19.5 20.0 27.5 29.0 36.0 34.0 34.0 32.0 22.0 14.5 36.0 DAY 5 20 25 28 6 3 26 18 8 1 4 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.6 9.0 7.0 20.5 9.0 3.2 5.2 0.0 0.0 6.0 5.5 9.0 20.5 DAY 16 28 15 24 28 19 20 ** ** 26 10 28 MONTHLY TOTAL PRECIPITATION IN MM. 18.2 27.0 16.3 93.7 45.0 7.5 7.4 0.0 0.0 7.2 5.5 14.5 242.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 25.4 60.3 3.1 11.2 NO. OF DAYS WITH PRECIPITATION. 4 11 7 16 12 4 2 0 0 2 1 4 63 NO. OF DAYS PRECIPITATION EQUAL 4 7 6 13 10 3 2 0 0 2 1 3 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 4 0 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 82 87 85 78 67 54 56 55 68 71 76 72 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 86 86 80 82 61 57 31 23 29 37 45 66 57 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 84 85 84 85 81 59 35 36 36 55 57 70 64 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 15 13 1 2 0 0 0 0 0 0 0 19 50 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 9 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 0 16 16 17 3 0 0 52 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. 24 22 5 2 0 0 0 0 0 4 2 24 83 DATE OF START AND END FREEZING START = 18 OCT. END = 3 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -4.6 -5.8 0.5 12.8 13.2 18.6 21.5 19.4 19.2 15.5 7.9 -4.9 9.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.6 -12.2 -3.4 6.6 7.9 11.3 13.9 10.4 10.5 6.9 1.3 -11.2 2.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.3 0.7 4.5 19.0 18.6 25.8 29.1 28.5 27.8 24.1 14.5 1.4 16.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.9 12.9 7.9 12.4 10.7 14.5 15.2 18.1 17.3 17.2 13.2 12.6 13.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.43 2.27 3.54 7.94 7.15 9.65 9.66 8.18 7.52 6.52 4.67 2.23 5.98 MEAN OF MIXING RATIO AT 09 GMT. 2.81 3.26 4.52 9.84 7.45 8.96 9.31 8.22 5.73 7.45 5.33 2.83 6.31 MEAN OF MIXING RATIO AT 15 GMT. 2.73 2.95 3.98 10.27 7.81 9.85 8.70 8.39 8.59 7.09 4.89 2.60 6.49 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 -27.5 -11.0 -4.5 3.5 8.5 9.0 6.5 8.0 1.0 -5.5 -21.5 -27.5 DAY 18 7 14 3 10 17 23 29 18 26 29 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 24.0 6.0 14.0 26.5 28.5 31.0 32.5 33.0 36.5 30.5 28.0 5.1 36.5 DAY 29 17 29 28 28 22 31 16 29 5 2 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.0 2.0 21.0 2.8 12.0 18.2 1.0 7.0 9.0 0.0 10.3 13.0 21.0 DAY 22 19 4 15 13 13 1 15 9 ** 28 14 MONTHLY TOTAL PRECIPITATION IN MM. 33.8 4.5 40.0 6.0 29.9 79.8 1.0 10.2 26.8 0.0 13.1 29.7 274.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 28.5 42.1 13.8 15.6 NO. OF DAYS WITH PRECIPITATION. 7 3 7 3 8 7 1 3 5 0 3 6 53 NO. OF DAYS PRECIPITATION EQUAL 7 3 7 3 8 7 1 3 5 0 3 5 52 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 0 1 5 0 0 0 0 1 1 10 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 78 87 90 79 75 63 66 65 69 81 82 77 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 72 78 81 69 57 44 37 34 27 46 57 64 56 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 81 85 89 69 61 39 42 48 53 65 75 66 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 26 17 1 0 0 0 0 0 0 2 30 105 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 14 4 0 0 0 0 0 0 0 0 11 37 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 12 7 9 2 0 0 31 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 22 2 0 0 0 0 0 0 11 31 125 DATE OF START AND END FREEZING START = 6 NOV. END = 4 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -5.4 2.9 4.1 9.3 12.0 14.9 19.2 18.4 16.7 15.4 4.2 1.7 9.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -13.2 -3.1 -2.7 3.1 2.8 5.7 9.0 8.3 8.2 7.5 -4.0 -5.0 1.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.4 8.9 11.0 15.5 21.2 24.1 29.5 28.5 25.2 23.4 12.6 8.4 17.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.6 12.0 13.7 12.4 18.4 18.4 20.5 20.2 17.0 15.9 16.6 13.4 16.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.01 3.64 3.66 5.33 5.52 7.62 9.11 8.84 7.75 7.66 3.38 3.00 5.63 MEAN OF MIXING RATIO AT 09 GMT. 3.70 4.95 4.40 6.99 7.89 9.67 10.64 11.83 8.32 9.91 5.38 4.18 7.32 MEAN OF MIXING RATIO AT 15 GMT. 2.85 4.70 4.34 6.10 7.18 8.92 10.59 10.10 7.84 7.36 4.39 3.70 6.51 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -25.0 -12.5 -11.5 -1.0 0.2 2.0 2.5 4.0 4.0 2.0 -18.5 -15.5 -25.0 DAY 26 23 13 1 5 3 17 22 1 11 7 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.5 15.5 18.0 22.5 31.0 30.0 40.0 33.0 32.5 33.0 20.5 20.0 40.0 DAY 29 20 22 27 25 16 27 3 14 21 12 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 20.0 19.0 15.0 6.0 14.0 0.0 0.0 0.0 0.0 0.0 16.0 20.0 DAY 15 22 19 4 3 5 ** ** ** ** ** 12 MONTHLY TOTAL PRECIPITATION IN MM. 32.0 36.0 31.0 44.0 24.5 22.9 0.0 0.0 0.0 0.0 0.0 20.0 210.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 47.1 43.4 0.0 9.5 NO. OF DAYS WITH PRECIPITATION. 2 3 6 5 6 3 0 0 0 0 0 2 27 NO. OF DAYS PRECIPITATION EQUAL 2 3 6 5 6 3 0 0 0 0 0 2 27 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 1 2 0 1 0 0 0 0 0 1 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 79 81 80 75 75 71 69 70 72 65 65 73 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 78 71 60 64 52 53 43 51 44 57 59 61 58 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 79 71 65 63 61 54 51 50 50 60 66 63 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 14 14 0 0 0 0 0 0 0 12 18 89 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 2 0 0 0 0 0 0 0 0 2 3 16 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 1 9 12 5 5 0 0 33 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 16 20 3 0 0 0 0 0 0 18 21 109 DATE OF START AND END FREEZING START = 5 NOV. END = 6 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -6.9 -7.1 3.0 9.1 15.0 18.3 19.5 17.9 16.6 12.6 5.7 0.5 8.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -14.2 -14.5 -3.0 2.1 5.2 8.6 10.7 8.5 8.1 4.4 -0.8 -6.2 0.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.4 0.3 8.9 16.1 24.8 28.0 28.3 27.3 25.0 20.8 12.3 7.3 16.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.6 14.8 11.9 14.0 19.6 19.4 17.6 18.8 16.9 16.4 13.1 13.5 15.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.80 1.71 3.77 4.84 5.96 8.07 9.44 8.20 7.81 5.73 4.02 2.58 5.33 MEAN OF MIXING RATIO AT 09 GMT. 2.46 2.42 5.16 6.09 8.19 11.12 12.56 13.41 9.75 9.24 5.25 3.82 7.46 MEAN OF MIXING RATIO AT 15 GMT. 2.31 2.17 4.36 5.28 6.26 8.94 8.83 9.58 8.32 6.57 4.26 3.04 5.83 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -21.5 -23.5 -13.5 -6.5 0.5 4.5 5.5 4.5 4.0 -4.5 -8.5 -13.0 -23.5 DAY 21 16 19 7 3 4 9 5 18 20 26 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 6.0 18.5 23.0 32.5 36.0 37.0 36.0 29.5 27.5 17.5 14.0 37.0 DAY 2 13 1 26 22 22 2 2 8 4 18 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.5 14.0 21.4 22.0 8.0 16.5 8.0 4.5 17.0 0.0 0.0 11.5 22.0 DAY 25 25 20 28 29 10 16 25 3 ** ** 23 MONTHLY TOTAL PRECIPITATION IN MM. 18.5 27.0 38.4 46.5 30.0 43.0 15.0 4.5 20.0 0.0 0.0 11.5 254.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 33.0 47.0 15.5 4.5 NO. OF DAYS WITH PRECIPITATION. 3 4 3 4 5 4 2 1 2 0 0 1 29 NO. OF DAYS PRECIPITATION EQUAL 3 4 3 4 5 4 2 1 2 0 0 1 29 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 2 2 0 2 0 0 1 0 0 1 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 77 76 72 64 71 72 69 73 68 69 69 72 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 66 73 57 44 47 55 63 50 61 61 66 59 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 77 72 60 42 49 50 56 57 52 57 64 60 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 28 10 2 0 0 0 0 0 1 7 21 100 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 16 12 0 0 0 0 0 0 0 0 0 0 28 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 11 10 7 0 0 0 0 30 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 2 0 0 0 0 0 3 13 30 126 DATE OF START AND END FREEZING START = 20 OCT. END = 8 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -0.7 -1.4 4.6 10.5 15.4 18.8 22.5 17.1 13.3 11.4 4.7 -0.6 9.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.7 -7.5 -2.4 3.0 7.7 10.0 12.2 8.9 6.9 3.8 -1.3 -5.4 2.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.4 4.8 11.5 17.9 23.1 27.5 32.7 25.4 19.7 19.1 10.6 4.2 16.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.1 12.3 13.9 14.9 15.4 17.5 20.5 16.5 12.8 15.3 11.9 9.6 14.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.62 2.33 3.45 4.89 7.62 8.84 10.47 7.92 6.92 5.55 3.72 2.62 5.58 MEAN OF MIXING RATIO AT 09 GMT. 3.53 3.64 4.31 6.72 8.92 11.43 15.43 12.93 9.57 6.89 4.37 3.66 7.62 MEAN OF MIXING RATIO AT 15 GMT. 2.80 2.93 4.04 5.79 8.23 8.86 11.74 11.03 8.40 6.48 3.90 2.61 6.40 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.5 -14.0 -8.0 -9.0 3.5 6.5 8.0 4.0 3.0 -1.5 -9.0 -15.5 -15.5 DAY 16 23 1 2 7 7 2 8 27 30 7 4 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 13.0 20.8 28.0 31.0 37.0 38.0 34.5 28.5 25.0 19.0 12.5 38.0 DAY 5 10 29 12 21 30 29 29 17 9 1 22 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 25.0 13.0 10.5 26.0 14.0 0.0 0.0 0.0 8.0 6.2 5.0 26.0 DAY 11 22 18 21 6 14 ** ** ** 2 30 24 MONTHLY TOTAL PRECIPITATION IN MM. 20.0 27.0 37.5 28.5 77.0 19.0 0.0 0.0 0.0 20.0 15.7 16.2 260.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 32.4 47.7 0.0 19.9 NO. OF DAYS WITH PRECIPITATION. 2 2 6 4 8 2 0 0 0 3 3 5 35 NO. OF DAYS PRECIPITATION EQUAL 2 2 6 4 8 2 0 0 0 3 3 5 35 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 1 1 2 1 0 0 0 0 0 0 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 69 75 68 78 72 71 71 72 81 76 69 73 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 65 68 56 54 52 52 50 64 67 54 56 72 59 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 65 66 58 61 52 50 63 67 67 65 62 62 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 22 12 2 0 0 0 0 0 0 8 22 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 2 5 0 0 0 0 0 0 0 0 1 3 11 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 3 7 25 6 0 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 28 21 3 0 0 0 0 0 1 15 27 126 DATE OF START AND END FREEZING START = 30 OCT. END = 7 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -0.2 -4.3 3.1 8.1 12.6 17.8 19.4 22.2 16.6 14.6 6.5 -0.3 9.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.0 -11.1 -3.2 1.5 5.6 9.2 9.9 12.0 8.1 7.0 0.0 -6.6 2.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.6 2.4 9.4 14.8 19.6 26.3 29.0 32.5 25.2 22.2 13.1 6.1 17.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.6 13.5 12.6 13.3 14.0 17.1 19.1 20.5 17.1 15.2 13.1 12.7 15.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.56 1.80 3.50 4.70 6.43 8.23 9.07 9.80 7.47 6.99 4.04 2.26 5.57 MEAN OF MIXING RATIO AT 09 GMT. 3.78 2.96 4.70 6.30 8.87 13.80 14.50 15.23 11.31 9.84 5.52 3.49 8.36 MEAN OF MIXING RATIO AT 15 GMT. 3.54 2.50 4.17 5.68 7.70 12.17 12.71 12.35 9.85 8.42 4.75 2.80 7.22 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.5 -20.0 -16.5 -11.5 1.5 3.5 5.0 8.0 5.5 2.5 -7.0 -10.5 -20.0 DAY 1 17 2 2 1 9 4 14 21 28 29 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.5 14.5 19.0 20.5 26.5 33.0 34.5 39.5 28.5 26.5 22.0 11.0 39.5 DAY 22 8 29 15 14 25 30 7 16 22 4 18 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.0 20.0 10.0 24.5 47.0 28.7 1.5 0.0 19.0 11.0 6.4 5.0 47.0 DAY 22 11 1 25 15 8 5 ** 14 30 29 30 MONTHLY TOTAL PRECIPITATION IN MM. 9.0 46.0 18.2 66.5 164.1 31.1 1.5 0.0 19.0 36.1 11.4 17.5 420.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 17.4 62.3 4.9 15.5 NO. OF DAYS WITH PRECIPITATION. 1 6 4 5 19 2 1 0 1 5 2 6 52 NO. OF DAYS PRECIPITATION EQUAL 1 6 4 5 19 2 1 0 1 5 2 6 52 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 2 5 1 0 0 1 1 0 0 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 64 61 73 71 75 74 72 68 71 76 66 62 69 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 65 65 61 59 62 62 57 50 55 59 57 63 60 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 67 64 63 64 67 62 54 60 62 56 58 62 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 24 11 3 0 0 0 0 0 0 7 26 93 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 10 3 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 4 14 26 0 0 0 0 44 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 17 5 0 0 0 0 0 0 12 31 124 DATE OF START AND END FREEZING START = 16 NOV. END = 5 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -6.9 2.3 9.0 9.3 11.9 19.2 19.7 20.3 17.3 8.8 5.3 -0.0 9.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -13.9 -4.9 2.4 2.6 4.3 10.8 11.7 11.3 8.8 0.6 -2.7 -6.6 2.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.2 9.5 15.5 16.0 19.5 27.6 27.6 29.3 25.8 17.0 13.2 6.5 17.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.1 14.4 13.1 13.4 15.2 16.8 15.9 18.0 17.0 16.4 15.9 13.1 15.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.32 2.84 4.47 4.77 5.31 9.28 9.93 9.66 7.85 4.35 3.60 2.60 5.50 MEAN OF MIXING RATIO AT 09 GMT. 2.46 3.95 6.69 7.24 8.25 13.97 14.23 13.91 11.23 6.13 5.39 3.58 8.08 MEAN OF MIXING RATIO AT 15 GMT. 1.56 3.89 6.37 6.35 6.95 11.27 11.13 11.40 9.27 5.35 4.90 2.93 6.78 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -22.0 -10.5 -5.0 0.5 1.5 4.5 7.5 6.5 0.5 -11.5 -8.5 -16.5 -22.0 DAY 8 13 10 19 2 4 30 19 30 23 10 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 17.0 22.5 20.5 25.0 35.0 35.0 39.5 33.0 31.0 19.5 14.5 39.5 DAY 31 24 2 30 30 11 8 24 23 3 7 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.5 6.0 12.5 18.0 13.5 29.3 0.0 2.8 5.0 13.2 22.0 14.0 29.3 DAY 7 6 18 17 26 20 ** 3 13 21 12 23 MONTHLY TOTAL PRECIPITATION IN MM. 38.6 6.0 35.7 41.1 49.4 53.2 0.0 2.8 5.0 37.0 40.0 58.4 367.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 21.9 39.1 2.1 36.9 NO. OF DAYS WITH PRECIPITATION. 7 1 5 4 7 5 0 1 1 5 3 7 46 NO. OF DAYS PRECIPITATION EQUAL 7 1 5 4 7 5 0 1 1 5 3 7 46 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 2 2 2 2 0 0 0 1 2 2 15 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 51 72 66 72 66 77 76 74 75 72 77 65 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 59 60 63 58 61 61 56 54 54 58 59 59 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 48 67 65 63 58 61 57 55 56 58 62 55 59 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 19 2 0 0 0 0 0 0 6 10 22 88 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 15 0 0 0 0 0 0 0 0 0 0 1 16 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 10 10 15 5 1 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 4 0 0 0 0 0 0 11 24 27 121 DATE OF START AND END FREEZING START = 13 OCT. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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 3.4 7.5 10.4 13.8 16.4 20.3 19.9 18.3 14.3 1.2 3.3 10.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.2 -4.3 -0.9 2.0 6.1 7.9 10.0 11.9 8.2 6.0 -5.3 -2.0 2.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.4 11.1 15.9 18.8 21.6 24.9 30.7 27.8 28.4 22.5 7.8 8.6 18.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.6 15.4 16.8 16.8 15.5 17.0 20.7 15.9 20.2 16.5 13.1 10.6 15.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.56 2.79 3.80 4.56 6.89 7.41 8.30 8.95 7.16 6.26 2.68 3.82 5.43 MEAN OF MIXING RATIO AT 09 GMT. 3.57 3.81 5.03 7.00 8.08 10.04 10.10 9.59 8.61 7.71 3.93 5.49 6.91 MEAN OF MIXING RATIO AT 15 GMT. 3.25 3.60 4.44 5.66 7.24 8.69 8.81 9.01 7.71 7.25 3.67 4.65 6.16 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.0 -13.5 -6.5 -3.5 0.5 0.5 5.0 7.5 4.5 1.5 -11.5 -6.5 -13.5 DAY 14 26 20 14 7 2 4 20 6 11 22 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 20.0 23.0 27.5 29.0 35.0 37.5 34.5 35.0 27.5 20.0 11.5 37.5 DAY 24 17 28 10 15 17 17 13 11 8 1 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.5 5.5 17.4 3.4 30.0 12.5 0.0 0.0 9.5 10.0 11.5 12.0 30.0 DAY 4 22 31 13 6 2 ** ** 8 20 13 13 MONTHLY TOTAL PRECIPITATION IN MM. 20.0 17.0 22.9 13.9 68.5 44.0 0.0 0.0 9.5 19.5 54.5 24.5 294.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 20.4 42.9 3.2 33.5 NO. OF DAYS WITH PRECIPITATION. 3 4 3 5 8 6 0 0 1 5 12 5 52 NO. OF DAYS PRECIPITATION EQUAL 3 4 3 5 8 6 0 0 1 5 12 5 52 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 2 2 0 0 0 1 1 1 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 64 62 69 68 83 74 65 61 68 72 71 86 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 50 47 54 52 53 36 41 37 51 63 79 52 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 64 59 54 57 60 61 40 46 44 62 77 84 59 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 15 4 0 0 0 0 0 0 0 21 5 70 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 9 18 5 12 0 0 0 44 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 24 19 8 0 0 0 0 0 0 29 25 135 DATE OF START AND END FREEZING START = 2 NOV. END = 25 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. 0.8 2.2 3.4 9.6 12.5 16.1 21.2 23.5 19.7 13.5 10.1 4.6 11.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.4 -4.6 -3.6 1.4 4.7 8.6 13.2 17.0 11.8 5.5 1.7 -3.2 3.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.0 9.1 10.4 17.8 20.4 23.6 29.2 29.9 27.7 21.6 18.8 12.3 19.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.4 13.7 14.0 16.4 15.7 15.0 16.0 12.9 16.0 16.1 17.1 15.5 15.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.13 3.05 3.95 5.08 6.18 8.12 11.82 15.45 11.43 6.69 4.70 3.42 6.92 MEAN OF MIXING RATIO AT 09 GMT. 4.36 4.66 5.60 7.29 10.07 12.71 16.85 18.67 16.92 10.96 8.01 5.46 10.13 MEAN OF MIXING RATIO AT 15 GMT. 3.53 4.02 4.83 6.21 8.33 10.96 14.99 16.57 14.61 9.48 7.91 5.87 8.94 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -13.5 -13.5 -3.0 -2.0 5.5 9.0 11.0 3.5 1.0 -3.0 -8.5 -13.5 DAY 26 27 5 28 3 10 5 28 27 28 23 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 18.0 20.0 27.0 26.5 29.5 32.0 34.5 34.0 30.0 25.0 21.0 34.5 DAY 4 16 22 4 22 30 11 17 5 1 13 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 29.0 12.0 11.0 17.0 15.0 0.0 0.0 0.0 19.0 0.0 2.5 29.0 DAY 10 28 27 16 29 20 ** ** ** 28 ** 15 MONTHLY TOTAL PRECIPITATION IN MM. 25.0 60.0 44.0 42.0 63.0 73.5 0.0 0.0 0.0 66.5 0.0 7.0 381.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 33.9 46.9 0.0 19.3 NO. OF DAYS WITH PRECIPITATION. 5 7 9 6 8 13 0 0 0 9 0 4 61 NO. OF DAYS PRECIPITATION EQUAL 5 7 8 6 8 13 0 0 0 9 0 4 60 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 1 1 2 2 0 0 0 2 0 0 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 72 80 78 79 83 85 89 81 84 77 81 81 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 75 66 74 60 68 73 70 72 68 72 66 70 70 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 70 77 65 73 83 75 74 77 78 73 75 75 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 15 9 0 0 0 0 0 0 0 0 9 55 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 6 4 0 0 0 10 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 15 20 11 1 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. 27 26 28 9 2 0 0 0 0 0 11 31 134 DATE OF START AND END FREEZING START = 11 NOV. END = 4 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -1.9 0.3 4.4 10.7 15.3 19.2 23.4 20.6 18.9 13.7 9.3 5.0 11.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -9.0 -6.0 -2.1 2.8 7.2 10.2 15.1 13.5 11.9 6.5 1.4 -2.4 4.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.2 6.7 11.0 18.6 23.4 28.2 31.6 27.7 26.0 21.0 17.3 12.3 19.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.2 12.7 13.1 15.8 16.2 18.0 16.5 14.2 14.1 14.5 15.9 14.7 15.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.04 2.71 3.85 5.05 7.09 8.48 12.21 10.89 10.18 7.16 5.01 3.61 6.52 MEAN OF MIXING RATIO AT 09 GMT. 3.29 4.73 6.24 6.44 9.22 9.06 12.06 10.45 10.77 8.33 6.15 4.38 7.59 MEAN OF MIXING RATIO AT 15 GMT. 2.44 3.94 4.90 6.58 8.43 7.37 10.31 10.35 9.96 8.76 6.48 4.46 7.00 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.0 -13.5 -11.5 -8.0 4.5 7.5 11.5 9.0 10.0 1.0 -1.5 -7.0 -19.0 DAY 31 1 7 16 1 3 3 21 11 30 23 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 10.5 20.5 26.0 29.0 32.0 35.5 36.0 34.0 27.0 22.0 19.0 36.0 DAY 4 22 29 25 21 29 31 19 6 1 5 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 6.5 6.5 9.0 12.0 12.0 0.0 0.0 4.0 16.5 4.5 7.5 20.0 DAY 14 11 6 29 9 17 ** ** 22 29 19 12 MONTHLY TOTAL PRECIPITATION IN MM. 57.0 36.5 31.5 28.0 29.5 14.5 0.0 0.0 4.0 46.5 19.0 11.5 278.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 45.0 25.9 1.4 27.7 NO. OF DAYS WITH PRECIPITATION. 8 11 7 6 4 2 0 0 1 5 5 2 51 NO. OF DAYS PRECIPITATION EQUAL 8 11 7 6 4 2 0 0 1 5 5 2 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 0 0 1 1 0 0 0 2 0 0 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 61 77 71 76 78 72 83 80 90 85 83 80 78 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 81 75 52 58 40 46 49 55 62 56 61 58 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 81 78 71 65 41 44 57 67 75 71 69 65 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 28 24 16 1 0 0 0 0 0 0 0 4 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 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 22 8 6 0 0 0 43 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 20 2 0 0 0 0 0 0 10 29 120 DATE OF START AND END FREEZING START = 16 NOV. END = 17 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. 2.4 2.1 6.3 8.2 13.2 17.1 21.5 20.5 18.1 13.4 7.9 5.6 11.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.1 -5.1 -1.8 -0.1 5.2 10.0 14.4 13.4 9.0 4.5 0.3 -1.7 3.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.8 9.3 14.4 16.9 21.3 24.2 28.6 27.5 27.2 22.3 15.7 12.7 19.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.9 14.4 16.2 17.0 16.1 14.2 14.2 14.1 18.2 17.8 15.4 14.4 15.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.11 2.83 3.99 4.36 6.20 8.65 11.56 11.02 8.23 5.94 4.20 3.91 6.17 MEAN OF MIXING RATIO AT 09 GMT. 4.22 4.11 5.27 6.18 7.36 10.51 11.34 11.03 9.87 9.57 6.02 4.48 7.50 MEAN OF MIXING RATIO AT 15 GMT. 3.85 4.02 4.90 5.96 6.82 9.82 10.68 11.10 9.58 8.64 5.54 4.27 7.10 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.5 -8.0 -8.5 -10.0 2.0 6.0 11.5 10.0 3.5 1.0 -5.5 -5.0 -10.0 DAY 1 24 1 3 17 9 26 27 23 23 23 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.5 13.0 23.0 26.0 31.0 27.0 33.0 32.5 33.0 28.0 22.0 19.0 33.0 DAY 8 17 19 24 8 4 27 30 12 3 1 19 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.5 16.0 12.5 24.0 15.0 22.0 0.0 5.0 0.0 18.5 15.5 9.5 24.0 DAY 21 21 30 17 22 6 ** 12 ** 8 30 29 MONTHLY TOTAL PRECIPITATION IN MM. 9.5 25.0 31.0 107.5 77.0 77.0 0.0 13.0 0.0 18.5 34.0 9.5 402.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 16.3 65.0 3.2 15.4 NO. OF DAYS WITH PRECIPITATION. 3 4 5 11 9 7 0 3 0 1 3 1 47 NO. OF DAYS PRECIPITATION EQUAL 3 4 5 11 9 7 0 3 0 1 3 1 47 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 3 4 3 0 0 0 1 2 0 15 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 81 83 80 81 79 77 83 79 85 79 84 81 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 64 58 57 51 58 48 50 45 60 63 55 56 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 75 71 72 59 65 52 61 55 66 68 65 65 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 25 6 3 0 0 0 0 0 0 5 2 60 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 1 0 14 6 6 0 0 0 27 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 22 11 0 0 0 0 0 0 10 23 124 DATE OF START AND END FREEZING START = 6 NOV. END = 17 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -1.2 -3.0 2.0 12.5 14.3 18.2 21.1 18.5 15.3 9.9 1.4 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -9.1 -10.0 -6.0 3.8 7.0 10.9 13.8 10.7 4.9 2.5 -4.6 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.4 4.0 10.6 21.3 21.6 25.6 28.5 26.4 25.5 17.6 7.7 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.5 14.0 16.6 17.5 14.6 14.7 14.7 15.7 20.6 15.1 12.3 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.38 1.82 2.85 5.70 7.15 8.92 11.45 9.06 ***** 4.93 2.94 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 3.50 3.15 4.43 7.16 8.90 8.98 11.60 9.47 11.65 6.87 3.70 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 3.16 2.21 4.08 7.11 7.53 9.19 10.94 8.89 10.67 6.15 3.38 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.5 -18.0 -14.0 -3.5 4.0 7.0 10.0 9.0 3.0 -1.5 -13.5 ***** ****** DAY 21 19 27 1 19 14 25 10 18 7 30 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.5 10.5 17.0 27.5 29.5 30.0 33.0 30.5 30.0 27.0 19.0 ***** ****** DAY 3 28 17 30 20 8 10 27 8 16 3 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.5 8.0 15.0 20.0 11.0 31.0 17.0 0.0 8.0 31.0 17.0 ***** ****** DAY 15 15 24 8 11 24 2 ** 27 7 25 ** MONTHLY TOTAL PRECIPITATION IN MM. 49.0 19.0 33.0 41.0 50.0 53.0 23.5 0.0 26.0 128.0 86.5 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 19.8 28.3 9.7 42.1 NO. OF DAYS WITH PRECIPITATION. 5 4 3 4 8 4 2 0 5 11 10 *** *** NO. OF DAYS PRECIPITATION EQUAL 5 4 3 4 8 4 2 0 5 11 10 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 2 1 1 2 1 0 0 5 4 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 65 74 83 81 76 85 80 *** 77 69 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 66 59 49 57 44 48 46 58 58 55 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 58 69 60 60 57 54 52 67 70 66 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 24 19 0 0 0 0 0 0 0 15 *** *** 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 0 1 12 3 1 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 27 28 3 0 0 0 0 0 3 28 *** *** DATE OF START AND END FREEZING START = 7 OCT. END = 9 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -4.1 -0.6 2.5 9.5 14.0 18.3 21.8 20.2 16.4 11.6 8.6 2.3 10.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.3 -7.1 -4.4 1.1 5.9 10.7 13.0 12.0 8.1 2.0 1.4 -4.6 2.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.5 5.9 9.3 17.9 22.2 25.9 30.6 28.3 24.8 21.3 15.8 9.2 17.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.8 13.0 13.7 16.8 16.3 15.2 17.6 16.3 16.7 19.3 14.4 13.8 15.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** 3.16 4.63 6.44 9.43 10.58 10.24 7.82 4.85 4.93 3.02 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 4.76 5.25 5.66 9.41 10.68 12.70 10.22 8.59 7.94 7.17 4.12 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 3.45 4.34 5.34 7.75 9.84 11.64 9.75 8.12 6.86 5.89 3.73 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.0 -13.0 -14.0 -4.5 2.0 8.0 10.0 8.0 2.5 -2.0 -6.0 -12.0 -19.0 DAY 8 11 7 1 1 1 1 29 28 25 26 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 8.0 19.5 24.0 26.0 30.5 34.5 34.5 29.0 27.0 21.0 15.0 34.5 DAY 1 19 28 16 22 15 17 15 19 11 2 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 0.0 15.0 15.0 14.0 0.0 0.0 10.0 12.0 18.0 10.5 5.0 18.0 DAY 20 ** 6 23 23 ** ** 28 14 6 25 11 MONTHLY TOTAL PRECIPITATION IN MM. 26.0 0.0 24.5 44.0 64.0 0.0 0.0 16.0 23.0 21.0 17.0 12.5 248.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 20.4 43.5 15.7 20.4 NO. OF DAYS WITH PRECIPITATION. 6 0 4 8 10 0 0 2 2 2 2 3 39 NO. OF DAYS PRECIPITATION EQUAL 6 0 4 8 10 0 0 2 2 2 2 3 39 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 1 2 0 0 1 2 1 1 0 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** 71 76 76 82 76 77 79 77 80 71 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 80 70 46 57 51 47 45 44 52 64 59 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 81 77 57 61 58 53 54 54 61 61 65 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 27 19 1 0 0 0 0 0 0 2 17 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 11 0 2 0 0 0 0 0 0 0 0 0 13 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 19 11 0 0 0 0 32 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 29 10 0 0 0 0 0 5 7 25 135 DATE OF START AND END FREEZING START = 7 OCT. END = 22 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. 1.2 -3.8 3.9 11.2 11.4 16.1 22.4 19.8 17.3 10.2 6.2 -5.4 9.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.9 -10.1 -3.0 2.3 3.3 6.2 13.1 11.5 9.3 3.1 -1.3 -11.8 1.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.2 2.4 10.9 20.1 19.5 26.1 31.7 28.1 25.1 17.4 13.7 1.0 17.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.1 12.5 13.9 17.8 16.2 19.9 18.6 16.6 15.8 14.3 14.9 12.8 15.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.58 1.48 3.47 4.84 5.47 6.70 11.19 10.11 8.88 5.75 4.20 1.23 5.49 MEAN OF MIXING RATIO AT 09 GMT. 4.34 2.83 4.97 5.39 6.41 8.84 10.83 11.92 13.10 7.89 5.51 3.19 7.10 MEAN OF MIXING RATIO AT 15 GMT. 3.75 1.91 4.45 4.54 6.43 8.34 10.04 10.77 11.28 6.52 4.62 1.90 6.21 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -19.0 -11.0 -1.0 -2.5 3.0 6.5 5.5 6.0 -4.0 -6.0 -15.0 -19.0 DAY 29 6 1 1 2 1 1 12 22 22 29 9 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 12.5 19.0 26.0 27.5 33.5 36.0 34.0 30.0 26.0 17.5 5.0 36.0 DAY 4 11 23 8 27 30 10 28 2 3 5 17 24 HOUR MAXIMUM PRECIPITATION IN MM. 17.5 13.0 0.0 0.0 14.5 6.0 6.5 0.0 30.0 22.0 28.0 6.0 30.0 DAY 28 13 ** ** 5 6 25 ** 8 19 29 24 MONTHLY TOTAL PRECIPITATION IN MM. 22.3 13.0 0.0 0.0 39.5 10.0 16.0 0.0 30.0 33.5 86.5 20.0 270.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 13.0 18.3 17.0 51.7 NO. OF DAYS WITH PRECIPITATION. 4 1 0 0 5 2 3 0 1 4 8 6 34 NO. OF DAYS PRECIPITATION EQUAL 3 1 0 0 5 2 3 0 1 4 8 6 33 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 0 0 3 0 0 0 1 1 4 0 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 68 44 74 73 76 75 77 77 76 77 78 53 71 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 60 64 38 48 47 38 50 66 62 57 71 55 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 55 73 45 61 55 47 60 65 63 58 59 59 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 24 7 0 0 0 0 0 0 1 6 31 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 2 7 0 0 0 0 0 0 0 0 0 13 22 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 26 12 2 0 0 0 48 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 29 3 6 0 0 0 0 9 21 31 159 DATE OF START AND END FREEZING START = 20 OCT. END = 6 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -1.7 -2.7 -1.9 12.4 15.3 19.7 19.5 20.8 18.7 ***** 6.8 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -11.0 -9.2 -9.7 3.7 7.5 10.7 11.2 11.4 8.4 ***** -0.7 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.8 3.8 5.8 21.2 23.0 28.6 27.9 30.1 28.6 ***** 14.3 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 18.8 12.9 15.5 17.5 15.5 17.9 16.7 18.7 20.2 ***** 15.0 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.49 2.22 2.38 5.37 7.71 9.48 9.65 9.87 8.49 ***** 3.92 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 4.07 3.33 3.93 8.64 11.10 13.87 13.39 14.19 11.03 ***** 4.98 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 3.44 2.28 3.48 6.78 9.84 12.48 12.25 11.89 9.97 ***** 3.99 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -19.5 -23.0 1.0 4.0 6.5 8.5 8.5 4.0 ***** -3.5 ***** ****** DAY 1 23 3 8 15 15 1 11 25 ** 30 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 14.0 16.0 29.5 30.0 35.0 33.0 34.0 35.0 ***** 21.0 ***** ****** DAY 26 17 20 20 30 26 19 22 1 ** 8 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 28.0 7.0 5.5 23.0 19.0 0.0 0.0 0.0 ***** 0.0 ***** ****** DAY 16 18 20 27 21 8 ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 23.0 47.5 21.0 17.0 50.5 28.5 0.0 0.0 0.0 ***** 0.0 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 48.8 51.2 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. 2 5 5 5 8 2 0 0 0 *** 0 *** *** NO. OF DAYS PRECIPITATION EQUAL 2 5 5 5 8 2 0 0 0 *** 0 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 0 0 1 1 0 0 0 *** 0 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 49 59 50 73 74 78 76 79 78 *** 69 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 63 59 54 61 53 56 52 44 *** 47 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 64 59 54 68 65 67 60 59 *** 50 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 30 27 17 0 0 0 0 0 0 *** 0 *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 *** 0 *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 8 10 0 0 0 0 0 0 *** 0 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 10 8 19 9 *** 0 *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 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 *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 27 0 0 0 0 0 0 *** 20 *** *** DATE OF START AND END FREEZING START = 1 NOV. END = 30 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. 0.7 0.9 1.2 10.3 13.6 16.6 22.2 21.7 19.1 13.0 4.6 -1.0 10.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.4 -3.1 -3.1 6.0 7.9 10.6 15.7 14.8 11.4 7.9 1.8 -4.5 5.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.9 4.9 5.6 14.6 19.4 22.7 28.6 28.5 26.9 18.1 7.5 2.7 15.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.3 8.0 8.7 8.6 11.5 12.1 12.9 13.7 15.5 10.2 5.7 7.2 10.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.66 2.95 2.98 5.41 6.46 8.33 9.95 8.77 6.94 6.73 4.23 2.46 5.66 MEAN OF MIXING RATIO AT 09 GMT. 2.94 3.18 3.27 5.47 6.67 8.32 10.41 9.29 7.13 6.86 4.25 2.83 5.88 MEAN OF MIXING RATIO AT 15 GMT. 2.93 3.10 3.23 5.86 6.29 8.52 10.41 8.47 7.19 6.86 4.48 2.65 5.83 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -16.2 -13.0 -13.2 1.0 4.2 4.8 11.2 10.6 6.0 2.4 -4.2 -14.0 -16.2 DAY 21 11 3 5 6 22 22 6 30 25 30 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.6 12.2 14.2 22.2 26.6 27.2 35.4 32.2 32.0 24.8 19.6 10.2 35.4 DAY 6 27 28 15 25 12 9 1 22 19 2 25 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 8.2 7.7 19.1 13.0 18.0 2.0 7.0 15.8 4.0 11.0 12.6 19.1 DAY 15 6 1 3 17 10 26 23 30 7 29 2 MONTHLY TOTAL PRECIPITATION IN MM. 20.0 17.7 28.2 31.0 65.4 84.0 3.4 7.0 25.1 18.2 31.0 22.1 353.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 18.7 51.1 10.1 20.2 NO. OF DAYS WITH PRECIPITATION. 9 6 12 12 16 11 3 1 3 10 17 3 103 NO. OF DAYS PRECIPITATION EQUAL 5 3 8 6 10 8 2 1 3 5 5 3 59 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 1 2 5 0 0 1 0 1 1 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 64 78 81 79 81 83 75 70 69 85 81 69 76 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 59 61 54 50 50 45 41 34 57 66 59 53 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 64 62 59 60 49 54 44 36 38 62 74 61 55 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 13 11 10 0 0 0 0 0 0 0 1 19 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 4 3 4 0 0 0 0 0 0 0 0 11 22 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 10 9 5 0 0 0 24 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. 24 22 28 0 0 0 0 0 0 0 12 25 111 DATE OF START AND END FREEZING START = 11 NOV. END = 30 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. 3.9 3.2 3.7 9.3 17.2 20.2 21.9 21.2 17.1 7.0 7.1 2.8 11.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.4 -1.5 -0.9 2.5 9.8 13.0 14.9 14.6 10.2 3.5 1.7 -0.7 5.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.2 8.0 8.2 16.1 24.6 27.4 28.9 27.8 24.1 10.5 12.5 6.0 16.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.6 9.5 9.1 13.6 14.8 14.4 14.0 13.2 13.9 7.0 10.8 6.7 11.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.73 3.22 3.32 4.19 6.75 7.74 8.04 9.23 7.10 5.01 3.36 3.23 5.33 MEAN OF MIXING RATIO AT 09 GMT. 2.88 3.64 3.48 4.24 6.43 7.23 8.42 9.29 7.02 5.15 3.46 3.54 5.40 MEAN OF MIXING RATIO AT 15 GMT. 2.87 3.59 3.30 4.16 6.28 7.71 8.82 9.44 7.10 5.14 3.54 3.53 5.46 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -6.8 -7.0 -4.6 4.6 10.6 9.4 8.0 4.0 -2.5 -10.6 -10.0 -10.6 DAY 22 7 15 21 6 1 4 30 24 28 29 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.2 17.4 15.0 22.6 30.2 32.5 34.4 35.0 31.6 29.0 18.4 13.0 35.0 DAY 31 3 8 24 9 28 6 3 5 2 6 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.6 4.0 6.1 7.2 11.1 11.0 0.3 14.0 0.6 14.0 13.0 25.0 25.0 DAY 24 8 27 3 30 15 30 5 14 5 7 26 MONTHLY TOTAL PRECIPITATION IN MM. 0.7 15.9 25.4 27.1 30.6 25.3 0.5 24.8 0.7 59.1 14.2 55.6 279.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 15.0 29.7 9.3 46.1 NO. OF DAYS WITH PRECIPITATION. 2 10 14 9 8 4 2 4 2 16 2 13 86 NO. OF DAYS PRECIPITATION EQUAL 0 5 6 6 5 3 0 2 0 11 2 10 50 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 1 1 0 2 0 2 1 2 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 60 75 76 73 70 67 61 74 73 85 60 69 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 43 60 55 43 35 33 37 43 43 68 41 60 47 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 49 65 55 41 38 36 37 44 47 73 50 66 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 7 7 1 0 0 0 0 0 0 3 7 27 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 1 0 0 0 0 0 0 2 0 5 11 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 8 11 13 4 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. 20 19 22 8 0 0 0 0 0 5 10 15 99 DATE OF START AND END FREEZING START = 12 OCT. END = 26 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -1.6 -0.3 5.5 10.4 14.2 19.1 20.7 19.6 17.1 12.6 6.9 3.0 10.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.6 -3.9 0.9 4.9 8.1 12.0 14.8 14.5 11.4 7.4 1.8 -1.0 5.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.5 3.3 10.0 15.9 20.2 26.1 26.6 24.7 22.8 17.9 11.9 7.0 15.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 6.1 7.2 9.1 11.0 12.1 14.1 11.8 10.2 11.4 10.5 10.1 8.0 10.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.39 2.47 3.42 4.92 6.50 8.84 9.99 9.95 7.55 6.22 3.39 3.15 5.73 MEAN OF MIXING RATIO AT 09 GMT. 2.84 2.60 3.39 5.10 5.83 7.15 9.32 9.21 7.23 6.38 3.43 3.46 5.49 MEAN OF MIXING RATIO AT 15 GMT. 2.73 2.52 3.42 5.07 6.70 7.44 9.88 9.72 7.33 6.61 3.52 3.40 5.70 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.8 -9.8 -5.4 -3.4 0.4 9.0 9.2 10.0 7.0 1.6 -5.0 -14.8 -14.8 DAY 20 4 6 6 3 18 28 30 22 24 14 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.2 11.2 17.2 20.0 27.4 32.5 35.2 32.8 32.2 24.2 19.8 16.2 35.2 DAY 31 29 30 16 18 13 13 28 8 26 3 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 6.2 7.0 18.0 13.0 6.2 7.6 21.5 1.0 8.0 14.3 11.0 21.5 DAY 19 17 21 28 22 29 11 4 1 16 10 27 MONTHLY TOTAL PRECIPITATION IN MM. 16.5 13.7 27.5 64.2 53.6 28.9 11.9 32.8 1.0 17.6 17.4 25.2 310.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 18.6 47.3 14.7 19.4 NO. OF DAYS WITH PRECIPITATION. 8 12 14 18 13 14 5 7 1 9 4 8 113 NO. OF DAYS PRECIPITATION EQUAL 5 5 10 11 11 9 4 4 1 5 2 5 72 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 3 2 0 0 1 0 0 1 1 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 68 69 69 75 77 78 76 81 76 81 62 69 73 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 53 45 46 41 36 43 49 45 52 39 56 47 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 58 50 50 52 39 48 53 49 61 49 64 53 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 17 16 1 0 0 0 0 0 0 0 2 6 42 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 7 0 0 0 0 0 0 0 0 0 4 23 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 4 3 3 0 0 0 16 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 24 14 6 0 0 0 0 0 0 10 18 101 DATE OF START AND END FREEZING START = 1 NOV. END = 9 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -5.7 -4.3 6.1 13.2 15.3 20.1 23.7 22.5 17.9 13.6 7.4 2.5 11.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -9.7 -9.5 1.1 6.0 8.0 12.5 17.5 16.1 11.1 8.0 3.6 -2.0 5.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. -1.6 1.2 11.1 20.3 22.7 27.7 29.9 28.9 24.6 19.2 11.2 7.0 16.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.1 10.7 10.0 14.3 14.7 15.2 12.4 12.8 13.5 11.2 7.6 9.0 11.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.91 1.87 4.32 5.05 6.24 8.00 9.40 9.25 7.84 6.23 4.87 3.31 5.69 MEAN OF MIXING RATIO AT 09 GMT. 2.36 2.65 4.34 4.86 5.61 7.17 9.21 9.44 7.62 6.71 5.36 3.43 5.73 MEAN OF MIXING RATIO AT 15 GMT. 2.22 2.32 4.42 4.94 5.98 7.99 10.11 9.89 7.93 6.62 5.18 3.37 5.91 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.0 -20.0 -7.0 1.2 3.0 6.0 14.6 12.0 4.0 3.0 -8.0 -8.5 -20.0 DAY 30 3 31 30 1 11 31 20 22 22 22 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 4.0 11.2 17.8 25.4 30.0 32.0 34.0 35.5 35.0 27.4 18.0 13.0 35.5 DAY 19 28 24 17 24 19 30 9 1 5 29 25 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 4.0 10.3 6.0 10.0 5.0 0.0 5.0 20.0 34.0 6.0 4.7 34.0 DAY 3 2 29 13 5 10 ** 14 15 29 11 4 MONTHLY TOTAL PRECIPITATION IN MM. 20.5 12.3 35.7 13.5 35.0 6.3 0.0 5.0 48.0 89.0 18.2 6.5 290.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 23.6 18.9 18.3 39.2 NO. OF DAYS WITH PRECIPITATION. 10 6 11 5 9 5 0 1 4 7 8 5 71 NO. OF DAYS PRECIPITATION EQUAL 7 4 9 3 7 1 0 1 4 7 6 1 50 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 1 0 0 0 3 3 0 0 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 73 86 72 74 70 63 68 81 76 78 76 75 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 65 58 34 34 32 37 39 43 52 63 58 49 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 67 60 37 39 37 38 41 46 56 67 64 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 22 3 0 0 0 0 0 0 0 3 12 71 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 23 9 2 0 0 0 0 0 0 0 0 4 38 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 6 16 15 6 0 0 0 44 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 11 0 0 0 0 0 0 0 4 25 97 DATE OF START AND END FREEZING START = 20 NOV. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -4.2 -1.5 3.7 8.7 13.5 20.2 21.5 20.3 19.1 12.6 9.9 1.5 10.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.3 -5.7 -1.4 3.3 7.3 12.5 15.1 14.8 11.3 6.5 3.8 -3.1 4.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. -0.1 2.7 8.7 14.1 19.8 27.9 27.9 25.8 26.8 18.6 16.0 6.0 16.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.2 8.4 10.1 10.8 12.5 15.4 12.8 11.0 15.5 12.1 12.2 9.1 11.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.32 2.75 3.46 4.94 6.43 8.21 8.63 9.59 7.28 6.06 3.95 3.05 5.56 MEAN OF MIXING RATIO AT 09 GMT. 2.68 3.21 3.52 5.00 5.82 6.92 8.63 10.00 8.18 6.25 4.10 3.43 5.65 MEAN OF MIXING RATIO AT 15 GMT. 2.46 3.18 3.86 5.01 5.85 7.51 9.34 10.30 8.18 6.46 4.06 3.42 5.80 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.0 -18.2 -12.4 -11.0 1.0 9.0 9.0 11.6 6.0 -1.0 -4.0 -18.0 -18.2 DAY 9 5 18 4 4 18 7 3 22 15 14 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 5.2 10.7 15.8 26.0 27.0 34.2 33.0 30.0 32.5 26.2 22.5 17.0 34.2 DAY 4 17 23 27 29 3 22 24 13 11 3 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 3.1 12.9 14.0 9.0 4.0 0.0 0.0 0.0 10.0 2.0 11.0 14.0 DAY 6 2 6 29 13 17 ** ** ** 14 13 22 MONTHLY TOTAL PRECIPITATION IN MM. 35.4 10.6 34.3 60.4 27.1 4.3 0.0 0.0 0.0 27.9 3.0 22.8 225.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 35.6 40.7 0.0 23.8 NO. OF DAYS WITH PRECIPITATION. 8 8 9 11 9 2 0 0 0 7 2 6 62 NO. OF DAYS PRECIPITATION EQUAL 6 5 5 10 7 1 0 0 0 5 2 3 44 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 2 0 0 0 0 0 1 0 1 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 85 80 82 78 71 64 75 71 81 62 74 75 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 72 56 54 43 32 38 50 40 50 38 57 50 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 77 60 56 46 36 40 50 42 57 45 67 54 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 18 7 3 0 0 0 0 0 0 2 14 70 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 12 3 1 0 0 0 0 0 0 0 8 42 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 10 12 1 8 0 0 0 31 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 19 4 0 0 0 0 0 2 8 19 107 DATE OF START AND END FREEZING START = 15 OCT. END = 5 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -1.8 -1.2 3.3 11.7 13.9 18.1 21.8 21.3 17.5 13.7 6.4 0.2 10.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.4 -6.2 -1.2 5.2 7.5 11.7 14.9 15.4 10.4 8.3 1.0 -3.3 4.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.9 3.7 7.7 18.2 20.2 24.4 28.8 27.2 24.5 19.2 11.7 3.7 16.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.3 9.9 8.9 13.0 12.7 12.7 13.9 11.8 14.1 10.9 10.7 7.0 11.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.56 2.67 3.83 5.43 6.43 8.77 8.88 9.27 7.09 6.43 4.42 3.20 5.75 MEAN OF MIXING RATIO AT 09 GMT. 2.95 2.76 4.00 5.08 5.92 8.29 8.47 9.05 7.29 6.46 4.80 3.52 5.71 MEAN OF MIXING RATIO AT 15 GMT. 2.82 2.90 4.16 4.76 5.96 8.52 8.70 9.43 7.32 6.53 4.95 3.45 5.79 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.0 -14.5 -17.5 -0.6 3.0 6.0 9.4 11.0 4.2 4.4 -5.0 -11.6 -19.0 DAY 25 13 11 13 7 8 12 14 27 17 18 19 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.5 11.4 21.0 25.0 25.5 30.2 34.0 34.5 31.2 24.6 19.2 12.0 34.5 DAY 7 25 30 21 21 30 5 1 18 6 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.3 8.0 11.0 16.0 13.0 23.0 3.0 1.0 0.0 9.2 12.0 11.0 23.0 DAY 23 27 6 12 24 7 2 12 ** 15 3 9 MONTHLY TOTAL PRECIPITATION IN MM. 5.6 19.3 66.3 23.3 53.9 54.7 5.3 1.0 0.0 24.1 23.4 37.9 314.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 29.0 41.9 2.0 27.1 NO. OF DAYS WITH PRECIPITATION. 3 10 15 7 16 8 4 1 0 6 5 9 84 NO. OF DAYS PRECIPITATION EQUAL 1 6 10 5 12 6 2 1 0 4 4 6 57 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 3 1 2 2 0 0 0 0 1 1 10 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 80 86 79 80 82 69 71 76 80 86 83 79 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 57 65 45 43 47 36 42 40 48 58 70 51 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 63 68 42 47 48 37 43 42 55 69 80 55 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 17 7 0 0 0 0 0 0 0 2 16 67 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 9 5 0 0 0 0 0 0 0 0 5 27 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 16 5 3 0 0 0 27 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 17 1 0 0 0 0 0 0 13 23 108 DATE OF START AND END FREEZING START = 2 NOV. END = 13 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -3.4 -1.2 1.4 8.8 11.3 17.2 20.9 18.9 16.5 13.5 7.5 0.1 9.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.7 -5.7 -3.2 2.9 6.0 11.0 15.0 12.8 10.1 6.2 2.4 -3.4 3.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.8 3.4 6.0 14.7 16.5 23.4 26.8 25.1 23.0 20.9 12.6 3.6 14.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.5 9.1 9.2 11.8 10.5 12.4 11.8 12.3 12.9 14.7 10.2 7.0 10.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.34 2.88 3.21 4.56 6.26 9.11 9.33 8.06 7.26 4.41 3.95 3.15 5.38 MEAN OF MIXING RATIO AT 09 GMT. 2.63 3.24 3.32 4.51 5.73 8.22 9.10 7.60 6.86 4.31 4.19 3.19 5.24 MEAN OF MIXING RATIO AT 15 GMT. 2.60 3.11 3.52 4.61 6.34 8.87 9.83 8.25 7.29 4.55 4.28 3.20 5.54 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -16.2 -15.6 -10.0 -1.5 -4.0 8.2 8.0 7.4 6.0 0.0 -5.0 -17.0 -17.0 DAY 25 29 1 19 5 7 11 12 28 15 26 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.0 10.5 16.0 23.0 28.4 29.5 34.5 34.0 29.0 25.4 20.0 12.0 34.5 DAY 19 23 29 12 29 30 16 24 2 3 6 15 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.5 7.0 11.2 7.0 19.0 9.0 5.0 3.0 3.0 9.1 15.0 14.1 19.0 DAY 16 24 24 22 21 6 11 11 15 15 11 26 MONTHLY TOTAL PRECIPITATION IN MM. 12.0 17.7 23.7 32.6 68.2 59.9 8.2 5.6 3.2 9.1 45.6 29.5 315.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 16.9 51.0 5.4 26.7 NO. OF DAYS WITH PRECIPITATION. 6 6 10 12 18 16 3 3 2 1 10 7 94 NO. OF DAYS PRECIPITATION EQUAL 3 4 6 9 10 11 2 2 1 1 7 4 60 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 2 0 0 0 0 0 2 1 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 85 85 81 84 89 73 74 78 64 68 80 78 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 66 59 50 51 47 44 42 40 32 49 63 51 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 73 66 55 58 55 48 45 48 40 60 71 58 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 20 13 0 1 0 0 0 0 0 2 15 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 13 5 6 0 0 0 0 0 0 0 0 8 32 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 6 6 0 0 0 0 12 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 26 6 4 0 0 0 0 1 9 24 128 DATE OF START AND END FREEZING START = 15 OCT. END = 5 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -4.5 -4.0 1.8 9.6 13.9 17.6 20.6 20.8 18.1 11.2 0.0 0.7 8.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.5 -7.6 -2.9 4.1 8.1 11.2 14.6 14.2 10.8 4.3 -3.2 -3.0 3.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. -0.6 -0.4 6.6 15.1 19.6 24.1 26.5 27.4 25.4 18.1 3.3 4.4 14.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.9 7.2 9.5 11.0 11.5 12.9 11.9 13.2 14.6 13.8 6.5 7.4 10.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.12 2.20 2.94 4.59 7.09 8.88 9.18 9.00 7.55 4.65 3.30 2.90 5.37 MEAN OF MIXING RATIO AT 09 GMT. 2.63 2.69 3.02 4.19 6.34 7.80 8.77 8.33 6.93 4.51 3.46 3.49 5.18 MEAN OF MIXING RATIO AT 15 GMT. 2.52 2.71 3.28 4.32 6.36 7.74 8.89 8.75 6.87 4.68 3.35 3.38 5.24 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -20.5 -11.0 -9.5 1.0 6.0 10.6 9.4 4.2 0.0 -16.6 -15.0 -20.5 DAY 17 17 23 23 9 22 6 25 25 9 30 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.4 10.0 19.0 26.4 26.4 33.4 35.0 34.0 33.4 27.0 18.4 10.2 35.0 DAY 29 27 30 19 17 28 24 27 7 1 8 25 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.2 16.0 8.0 13.2 14.0 10.3 9.0 17.0 0.0 12.0 23.0 6.6 23.0 DAY 8 2 18 20 31 3 11 7 ** 31 11 8 MONTHLY TOTAL PRECIPITATION IN MM. 20.4 59.7 39.0 44.6 60.9 21.9 12.0 19.3 0.0 24.3 93.4 15.1 410.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 29.0 31.0 7.6 32.3 NO. OF DAYS WITH PRECIPITATION. 13 11 14 12 13 10 2 3 0 4 15 6 103 NO. OF DAYS PRECIPITATION EQUAL 4 8 8 8 8 3 2 2 0 3 12 3 61 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 0 2 2 1 0 1 0 2 4 0 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 79 75 74 85 85 73 75 77 74 84 73 78 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 72 52 46 46 46 42 39 39 40 71 66 52 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 78 60 49 51 45 42 42 42 48 76 72 57 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 21 11 1 0 0 0 0 0 0 14 10 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 19 15 3 0 0 0 0 0 0 0 11 5 53 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 6 6 7 0 0 0 21 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 27 25 5 0 0 0 0 0 1 23 21 132 DATE OF START AND END FREEZING START = 9 OCT. END = 24 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. 1.8 -0.7 5.2 12.1 14.6 17.5 20.1 21.2 16.5 12.3 6.8 -0.9 10.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.1 -4.8 0.6 5.6 8.6 11.5 14.3 15.8 9.6 6.7 2.8 -4.5 5.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.7 3.5 9.7 18.7 20.6 23.4 26.0 26.6 23.4 18.0 10.7 2.8 15.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.8 8.3 9.1 13.1 12.0 11.9 11.7 10.8 13.8 11.3 7.9 7.3 10.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.86 2.38 3.58 5.54 7.46 8.67 8.77 9.67 6.05 6.17 4.43 2.67 5.69 MEAN OF MIXING RATIO AT 09 GMT. 2.97 2.40 3.57 5.47 7.36 8.21 8.22 9.58 6.09 6.04 4.43 2.96 5.61 MEAN OF MIXING RATIO AT 15 GMT. 3.05 2.56 3.86 5.77 7.29 8.04 8.86 10.08 5.81 6.08 4.61 2.89 5.74 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.5 -13.6 -3.6 0.0 4.0 6.0 10.4 12.2 5.0 2.8 -4.0 -19.0 -19.0 DAY 24 19 3 3 7 30 3 26 20 12 7 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.2 11.5 18.0 26.5 26.5 31.6 29.5 30.2 28.0 23.6 19.0 9.6 31.6 DAY 3 27 29 21 28 16 20 16 17 14 3 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 3.3 12.6 17.2 16.4 11.3 0.0 0.0 6.0 14.0 30.0 5.1 30.0 DAY 2 14 12 30 13 27 ** ** 28 15 5 4 MONTHLY TOTAL PRECIPITATION IN MM. 28.1 8.9 41.8 48.8 54.6 33.7 0.0 0.0 6.6 31.7 65.2 19.9 339.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 23.2 40.4 1.9 34.4 NO. OF DAYS WITH PRECIPITATION. 9 10 11 9 12 9 0 0 2 6 10 9 87 NO. OF DAYS PRECIPITATION EQUAL 7 4 8 7 10 5 0 0 1 4 8 7 61 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 2 1 1 0 0 0 2 2 0 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 68 72 77 81 86 84 71 73 68 82 76 72 76 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 52 53 46 51 51 40 46 36 51 57 61 50 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 61 61 59 49 51 49 43 47 36 57 67 68 54 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 9 16 0 0 0 0 0 0 0 0 1 16 42 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 8 1 0 0 0 0 0 0 0 0 9 20 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 0 2 0 0 0 0 5 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. 24 26 17 1 0 0 0 0 0 0 6 23 97 DATE OF START AND END FREEZING START = 6 NOV. END = 3 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. 2.5 2.6 6.4 10.6 15.3 18.6 21.3 22.4 18.0 11.4 8.0 0.5 11.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.5 -2.4 0.0 5.0 8.3 11.4 15.4 15.9 11.0 5.3 2.1 -3.8 5.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.5 7.7 12.7 16.3 22.3 25.9 27.1 29.0 24.9 17.5 13.9 4.8 17.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.0 10.1 12.7 11.3 14.0 14.5 11.7 13.1 13.9 12.2 11.8 8.6 11.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.08 3.21 3.66 5.27 6.54 8.36 8.79 9.81 7.91 5.00 3.17 2.55 5.61 MEAN OF MIXING RATIO AT 09 GMT. 3.33 3.36 3.59 5.34 5.91 7.49 8.55 10.10 9.10 4.74 3.12 2.53 5.60 MEAN OF MIXING RATIO AT 15 GMT. 3.54 3.52 3.62 5.70 6.31 8.02 9.17 10.36 9.14 5.24 3.15 2.63 5.87 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.5 -9.2 -4.0 -1.2 3.6 7.0 10.6 12.2 6.0 0.0 -7.0 -11.0 -11.0 DAY 23 6 3 6 11 1 3 21 30 20 28 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.2 13.0 20.0 21.0 27.5 33.8 31.0 36.4 31.2 28.0 19.6 13.0 36.4 DAY 4 22 24 30 21 21 13 12 7 3 22 30 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 9.0 13.0 12.8 6.5 14.4 1.6 0.0 9.0 7.0 1.0 1.3 14.4 DAY 17 5 17 4 4 4 1 ** 20 12 10 13 MONTHLY TOTAL PRECIPITATION IN MM. 28.9 11.5 37.8 60.8 19.6 54.7 2.6 0.0 21.3 8.8 1.5 3.1 250.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 31.2 53.9 9.5 5.3 NO. OF DAYS WITH PRECIPITATION. 6 5 8 13 9 10 2 0 7 3 4 6 73 NO. OF DAYS PRECIPITATION EQUAL 6 2 7 12 7 10 2 0 4 2 1 1 54 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 2 0 2 0 0 0 0 0 0 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 71 79 76 79 76 80 67 74 81 75 53 72 74 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 56 46 49 36 38 40 44 50 42 31 48 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 63 49 53 42 45 42 44 53 51 40 58 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 8 1 0 0 0 0 0 0 0 6 18 40 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 8 11 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 5 12 6 0 0 0 27 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. 21 22 19 2 0 0 0 0 0 1 13 27 105 DATE OF START AND END FREEZING START = 20 OCT. END = 7 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -1.6 1.5 2.9 9.0 16.0 18.0 22.4 22.0 19.4 12.5 5.9 5.7 11.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.7 -2.9 -1.2 3.6 9.7 11.3 15.7 15.2 12.1 6.7 0.5 1.7 5.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.5 5.9 7.0 14.3 22.4 24.8 29.1 28.7 26.8 18.4 11.2 9.7 16.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.2 8.8 8.2 10.7 12.7 13.5 13.4 13.5 14.7 11.7 10.7 8.0 11.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.57 3.03 3.60 4.71 7.73 7.23 9.31 8.50 7.54 5.27 3.92 3.70 5.59 MEAN OF MIXING RATIO AT 09 GMT. 2.72 3.01 3.65 4.43 7.14 6.98 8.91 8.78 7.12 5.34 4.14 3.58 5.48 MEAN OF MIXING RATIO AT 15 GMT. 2.80 3.08 3.82 4.62 7.39 7.26 8.90 9.08 6.72 5.36 4.28 3.94 5.60 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.6 -18.6 -8.0 -5.2 5.0 6.4 11.2 12.3 7.2 -0.6 -5.6 -6.4 -18.6 DAY 14 3 1 5 7 14 16 17 21 29 17 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.0 14.8 17.2 22.2 29.0 34.0 36.4 35.8 31.6 27.0 16.4 14.6 36.4 DAY 3 25 30 29 31 29 24 21 7 3 4 27 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 9.0 14.7 24.0 15.0 4.0 8.0 1.0 5.0 22.1 16.0 4.0 24.0 DAY 6 11 8 9 11 4 7 29 22 15 7 11 MONTHLY TOTAL PRECIPITATION IN MM. 14.9 21.8 56.6 50.6 39.5 4.3 12.0 2.0 9.3 38.1 29.0 6.7 284.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 32.8 33.1 8.2 25.9 NO. OF DAYS WITH PRECIPITATION. 9 9 14 12 10 2 2 2 5 6 4 5 80 NO. OF DAYS PRECIPITATION EQUAL 4 4 12 8 7 1 2 2 4 6 4 3 57 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 2 1 1 0 0 0 0 1 1 0 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 76 86 78 84 70 69 68 74 72 80 70 75 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 57 62 49 46 38 38 40 37 43 54 49 48 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 62 66 51 52 40 37 39 36 49 63 61 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 11 6 2 0 0 0 0 0 0 5 1 44 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 12 6 3 0 0 0 0 0 0 0 0 0 21 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 13 15 4 0 0 0 36 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 21 21 3 0 0 0 0 0 2 14 5 91 DATE OF START AND END FREEZING START = 28 OCT. END = 6 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. 0.1 -3.0 0.1 10.5 15.0 19.4 21.5 22.5 16.2 15.0 6.6 2.3 10.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.3 -7.7 -4.8 3.9 7.9 12.6 16.2 16.5 10.2 8.3 1.5 -2.0 4.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.5 1.6 5.0 17.2 22.2 26.3 26.8 28.4 22.3 21.7 11.8 6.6 16.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.8 9.3 9.8 13.3 14.3 13.7 10.6 11.9 12.1 13.4 10.3 8.6 11.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.38 2.03 2.65 4.17 6.53 9.37 10.64 9.44 7.24 5.44 3.94 2.90 5.56 MEAN OF MIXING RATIO AT 09 GMT. 2.46 2.31 2.71 3.39 6.11 8.56 9.82 9.33 6.81 5.25 4.00 3.09 5.32 MEAN OF MIXING RATIO AT 15 GMT. 2.54 2.25 2.84 3.50 6.35 8.86 10.18 9.26 6.94 5.41 4.33 3.19 5.47 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.0 -17.6 -17.0 -4.8 2.0 8.4 12.2 12.4 1.5 1.6 -4.4 -14.4 -17.6 DAY 29 6 9 12 6 7 8 31 14 31 26 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.6 10.6 15.0 29.6 29.4 30.4 31.3 36.4 32.6 27.6 16.8 15.8 36.4 DAY 6 18 31 26 28 12 27 12 1 18 10 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.1 11.7 11.0 7.2 11.0 15.0 5.0 0.6 28.0 4.0 6.0 6.0 28.0 DAY 16 24 6 11 24 22 5 9 14 28 5 11 MONTHLY TOTAL PRECIPITATION IN MM. 18.5 35.8 34.6 17.3 41.8 51.0 7.5 0.7 33.7 7.2 14.6 20.3 283.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 31.4 38.9 14.8 14.9 NO. OF DAYS WITH PRECIPITATION. 5 8 11 7 12 10 2 2 4 3 5 7 76 NO. OF DAYS PRECIPITATION EQUAL 3 7 8 4 9 8 2 0 2 2 4 4 53 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 1 0 1 1 0 0 1 0 0 0 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 65 67 75 65 77 81 76 68 80 67 74 68 72 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 46 53 52 30 38 42 46 41 45 34 47 51 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 53 56 58 30 44 47 46 39 50 40 59 61 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 19 15 1 0 0 0 0 0 0 2 11 67 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 10 12 4 0 0 0 0 0 0 0 0 4 30 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 7 11 5 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. 24 27 24 6 0 0 0 0 0 0 10 21 112 DATE OF START AND END FREEZING START = 1 NOV. END = 20 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -2.9 -2.9 5.4 12.2 15.0 21.0 22.1 22.8 18.0 13.4 9.4 5.1 11.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.6 -7.3 0.4 5.8 8.7 14.0 15.6 16.2 11.8 7.0 3.9 0.1 5.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.8 1.5 10.3 18.5 21.4 27.9 28.7 29.3 24.3 19.8 15.0 10.1 17.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.4 8.8 9.9 12.7 12.7 13.9 13.1 13.1 12.5 12.8 11.1 10.0 11.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.39 2.18 3.51 5.01 7.14 8.47 8.67 9.45 8.23 5.37 4.39 3.34 5.68 MEAN OF MIXING RATIO AT 09 GMT. 2.88 2.48 3.24 4.78 6.65 8.24 8.02 9.48 7.91 5.04 4.57 3.47 5.56 MEAN OF MIXING RATIO AT 15 GMT. 2.63 2.50 3.49 4.70 7.10 8.04 8.51 9.73 8.01 5.36 4.33 3.62 5.67 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.4 -19.8 -6.6 -3.0 1.6 10.0 11.4 13.4 7.2 0.0 -0.2 -5.6 -19.8 DAY 14 10 2 1 4 1 30 7 29 9 13 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 4.5 10.0 18.8 28.0 29.4 35.2 33.2 38.0 33.0 27.5 20.8 20.5 38.0 DAY 1 7 29 14 7 22 5 30 1 1 6 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 13.0 11.9 8.2 17.0 9.0 9.2 0.0 14.0 26.5 14.3 5.4 26.5 DAY 27 8 17 30 12 1 31 ** 26 9 23 24 MONTHLY TOTAL PRECIPITATION IN MM. 26.7 25.7 21.8 36.2 40.1 11.0 16.8 0.0 15.5 39.5 19.5 11.7 264.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 28.1 33.0 12.2 26.7 NO. OF DAYS WITH PRECIPITATION. 12 7 6 10 16 4 7 0 4 2 5 4 77 NO. OF DAYS PRECIPITATION EQUAL 8 5 5 10 8 2 3 0 2 2 3 4 52 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 0 1 0 0 0 1 2 1 0 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 74 67 72 71 80 67 65 70 81 71 72 71 72 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 57 42 41 43 37 35 40 45 40 48 50 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 62 49 42 48 36 37 41 47 46 51 59 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 20 3 0 0 0 0 0 0 0 0 8 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 13 9 0 0 0 0 0 0 0 0 0 2 24 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 11 11 4 0 0 0 32 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 25 15 3 0 0 0 0 0 1 1 19 94 DATE OF START AND END FREEZING START = 9 OCT. END = 26 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. 2.3 4.1 5.5 9.4 14.2 19.0 21.2 24.4 17.9 13.1 4.9 5.2 11.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.8 -1.6 -0.6 3.7 7.1 11.4 14.5 17.4 12.2 6.7 -0.2 0.3 5.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.5 9.8 11.6 15.0 21.2 26.6 27.8 31.4 23.6 19.5 9.9 10.1 17.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.3 11.4 12.2 11.3 14.1 15.2 13.3 14.0 11.4 12.8 10.1 9.8 12.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.07 2.64 3.39 4.80 7.16 7.68 7.64 10.45 8.86 5.68 3.74 3.04 5.68 MEAN OF MIXING RATIO AT 09 GMT. 2.89 2.57 3.20 4.65 6.96 7.10 7.32 9.73 8.16 5.44 3.76 3.12 5.41 MEAN OF MIXING RATIO AT 15 GMT. 3.13 2.53 3.30 4.80 6.57 7.56 8.17 9.81 8.70 5.69 3.97 3.19 5.62 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -9.0 -6.0 -2.0 0.2 8.0 8.4 14.2 5.0 0.4 -11.0 -11.0 -11.0 DAY 2 5 3 9 21 5 15 20 28 31 28 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 13.2 18.0 25.0 29.6 32.2 32.5 36.6 31.2 29.5 17.4 16.4 36.6 DAY 14 27 7 30 28 24 31 26 2 1 19 22 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.7 2.0 16.0 13.7 18.2 5.0 0.9 11.0 11.0 25.0 8.2 2.0 25.0 DAY 17 3 17 8 14 15 13 7 26 12 26 16 MONTHLY TOTAL PRECIPITATION IN MM. 10.2 4.7 48.4 51.2 66.8 8.4 0.9 26.6 25.3 73.1 19.0 2.1 336.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 18.8 37.5 15.7 28.0 NO. OF DAYS WITH PRECIPITATION. 5 4 9 15 11 4 1 7 6 8 5 2 77 NO. OF DAYS PRECIPITATION EQUAL 3 3 7 9 9 3 0 5 4 7 4 1 55 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 2 1 3 0 0 1 1 3 0 0 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 63 74 79 89 71 59 72 83 77 75 63 73 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 49 35 43 49 51 34 32 37 48 45 54 43 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 60 39 45 52 49 38 35 39 54 52 63 52 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 8 8 7 0 0 0 0 0 0 0 7 4 34 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 3 0 0 0 0 3 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 1 0 0 0 0 0 0 0 3 0 4 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 7 21 2 0 0 0 34 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. 24 20 14 5 0 0 0 0 0 0 14 12 89 DATE OF START AND END FREEZING START = 1 NOV. END = 24 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 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. -0.6 0.3 3.2 13.2 14.9 18.8 23.5 22.7 18.5 10.6 5.2 3.2 11.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.6 -4.2 -2.3 6.3 8.1 11.5 16.1 16.0 12.7 6.1 0.8 -0.4 5.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.5 4.7 8.8 20.0 21.7 26.0 30.9 29.4 24.3 15.0 9.6 6.8 16.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.1 8.9 11.1 13.7 13.6 14.5 14.8 13.4 11.6 8.9 8.8 7.2 11.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.51 2.40 3.04 5.22 6.51 6.99 7.93 8.41 8.93 6.05 4.04 3.34 5.45 MEAN OF MIXING RATIO AT 09 GMT. 2.64 2.55 2.90 4.66 5.89 7.06 7.80 8.73 9.92 5.87 4.06 3.29 5.45 MEAN OF MIXING RATIO AT 15 GMT. 2.85 2.91 3.03 4.70 6.17 7.53 8.93 9.46 10.02 6.00 4.33 3.46 5.78 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.4 -16.0 -14.0 1.0 3.0 3.6 13.2 11.4 8.4 2.2 -4.8 -7.8 -17.4 DAY 17 8 15 2 11 13 23 8 27 30 29 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.4 13.0 17.0 25.6 27.2 32.2 35.7 36.8 32.2 24.8 15.4 12.0 36.8 DAY 1 24 19 14 31 20 28 3 7 11 12 30 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.3 6.7 11.0 9.0 7.3 1.8 0.6 0.0 13.2 14.2 29.4 6.0 29.4 DAY 16 7 24 26 9 1 8 ** 29 24 1 22 MONTHLY TOTAL PRECIPITATION IN MM. 20.6 25.9 32.6 17.8 16.5 1.8 0.6 0.0 39.4 34.3 43.1 9.9 242.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 32.6 14.9 16.5 36.0 NO. OF DAYS WITH PRECIPITATION. 11 9 9 8 9 1 1 0 6 9 7 7 77 NO. OF DAYS PRECIPITATION EQUAL 3 7 7 5 5 1 0 0 4 6 5 3 46 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 0 0 0 0 0 2 2 1 0 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 68 71 70 78 64 56 62 83 86 83 74 72 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 50 48 34 38 37 30 37 56 57 57 54 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 66 62 51 35 42 38 32 39 59 65 66 65 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 14 9 0 0 0 0 0 0 0 1 4 46 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 10 5 2 0 0 0 0 0 0 0 0 3 20 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 19 10 3 0 0 0 36 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 28 22 0 0 0 0 0 0 0 10 17 103 DATE OF START AND END FREEZING START = 9 NOV. END = 28 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. MEAN AND EXTREMES FOR THE PERIOD 1964 TO 2000 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. -1.4 -0.5 4.1 10.1 14.2 18.2 21.0 20.6 17.4 12.4 6.6 1.7 10.4 SD OF MEAN DAILY TEMPERATURE IN C. 3.13 2.91 2.23 1.62 1.34 1.44 1.28 1.59 1.40 1.85 2.29 2.55 1.97 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.8 -6.0 -1.7 3.4 7.1 10.5 13.3 13.0 9.7 5.4 0.5 -3.7 3.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.9 4.9 9.9 16.8 21.4 26.0 28.8 28.3 25.2 19.4 12.7 7.0 17.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.7 11.0 11.7 13.4 14.4 15.5 15.5 15.3 15.5 14.0 12.2 10.7 13.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.52 2.60 3.65 5.07 6.77 8.42 9.49 9.46 7.87 5.86 4.12 3.11 5.74 MEAN OF MIXING RATIO AT 09 GMT. 3.31 3.46 4.44 5.83 7.56 9.46 10.49 10.60 8.99 6.89 4.89 3.78 6.64 MEAN OF MIXING RATIO AT 15 GMT. 2.98 3.13 4.22 5.59 7.31 8.93 9.97 10.01 8.54 6.56 4.66 3.52 6.28 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -25.0 -27.5 -23.0 -11.5 -4.0 0.5 2.5 4.0 0.5 -11.5 -18.5 -21.5 -27.5 YEAR - DAY 73-26 72- 7 85- 3 76- 2 92- 5 78- 2 66-30 73-22 77-30 77-23 73- 7 72-25 72- 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 24.0 20.0 23.0 29.6 32.5 37.0 40.0 39.5 36.5 33.0 28.0 21.0 40.0 YEAR - DAY 72-29 78-17 78-28 97-26 65-20 75-30 73-27 76- 7 72-29 73-21 72- 2 79- 4 73-27 24 HOUR MAXIMUM PRECIPITATION IN MM. 32.5 29.0 29.8 28.0 47.0 31.0 17.0 21.5 38.6 34.0 45.2 25.0 47.0 YEAR - DAY 65- 9 79-28 66-20 69- 2 76-15 82-24 82- 2 88- 4 69-11 89-29 66- 7 87-26 76-15 MONTHLY TOTAL PRECIPITATION IN MM. 23.3 22.5 35.0 44.2 49.6 33.9 4.4 5.2 14.7 34.6 27.4 19.9 314.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 25.7 40.6 7.7 26.0 NO. OF DAYS WITH PRECIPITATION. 6 6 8 8 10 6 1 1 2 5 5 5 63 NO. OF DAYS PRECIPITATION EQUAL 4 4 6 7 8 5 1 1 2 5 4 4 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 1 1 1 0 0 1 1 1 1 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 71 77 77 79 76 71 72 76 77 74 73 75 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 65 64 60 52 49 46 44 46 47 52 55 61 53 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 68 65 58 56 52 47 49 53 59 62 67 59 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 18 8 1 0 0 0 0 0 0 5 14 68 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 5 2 0 0 0 0 0 0 0 0 3 17 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 12 10 5 0 0 0 32 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 25 20 4 0 0 0 0 0 2 12 24 115 DATE OF START AND END FREEZING START = 7 OCT. END = 6 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION AHAR LATITUDE 38 29 N DATA PROCESSING CENTER LONGITUDE 47 3 E ELEVATION 1157 MET. MEAN AND EXTREMES FOR THE PERIOD 1964 TO 2000 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. -0.9 -0.1 4.6 10.7 15.0 19.3 22.3 21.8 18.4 12.9 7.1 2.1 11.1 AVERAGE DEW POINT TEMPERATURE. IN C. -6.4 -6.0 -1.7 2.6 6.6 9.8 11.5 11.5 8.8 4.9 -0.1 -4.0 3.1 AVERAGE OF MIXING RATIO IN G/KG 2.94 3.06 4.11 5.49 7.20 8.93 9.98 10.02 8.42 6.43 4.56 3.47 6.22 AVERAGE OF VAPOUR PRESSURE HPA 4.13 4.30 5.78 7.72 10.12 12.54 14.00 14.05 11.82 9.03 6.41 4.88 8.73 AVERAGE OF SATURATION DEFICIT IN HPA 2.08 2.29 3.36 6.06 7.99 11.15 14.12 13.23 10.62 6.89 4.40 2.74 7.08 AVERAGE RELATIVE HUMIDITY IN PERCENT 69 67 67 62 61 58 54 56 58 63 64 67 62 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 80 80 81 79 80 77 71 73 77 79 77 78 78 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 58 56 55 48 46 44 41 43 44 49 51 56 49 NO. OF DAYS PRECIPITATION EQUAL 2 2 3 3 4 3 0 0 1 2 2 2 24 OR MORE THAN 5 MM.