IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1972 -12.7 -9.3 5.1 10.1 10.2 17.9 21.5 15.9 14.5 13.2 5.3 -2.4 34.2 1973 -9.5 -2.1 4.5 9.6 14.6 21.9 24.6 24.1 19.1 14.2 4.4 -0.5 34.1 1974 -6.9 -7.1 4.4 9.1 15.4 21.1 22.4 22.4 17.5 11.3 7.1 -6.2 29.5 1975 -5.0 -4.6 3.0 10.4 14.1 20.9 25.8 24.0 19.5 10.6 3.7 -2.2 30.8 1976 -1.4 -2.9 0.4 8.7 13.2 20.3 24.8 24.4 19.0 11.7 5.2 1.5 27.7 1977 -8.6 -3.0 7.5 10.5 15.1 21.5 24.8 23.7 19.4 11.0 5.6 -0.4 33.3 1978 -2.3 2.6 5.6 10.6 14.7 19.4 23.4 23.7 19.9 13.5 2.4 3.9 26.0 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 -6.3 -4.7 1.5 10.8 15.1 20.9 25.0 24.5 18.0 11.3 6.2 0.8 31.3 1981 -2.7 1.6 5.7 9.3 13.1 18.9 24.2 24.6 18.3 11.8 6.3 3.3 27.3 1982 -0.8 -7.0 1.1 11.9 15.7 20.1 23.2 23.6 18.9 11.0 2.9 -6.7 30.6 1983 ****** ****** ****** 8.5 15.0 20.8 24.9 25.6 19.4 12.1 8.1 0.1 ****** 1984 -0.4 -0.9 5.8 10.3 11.6 21.6 24.9 24.5 19.6 12.1 5.5 -5.2 30.1 1985 -1.1 -0.3 1.2 10.0 15.9 21.6 25.3 ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 0.8 3.4 4.1 9.8 16.9 22.0 23.8 23.6 19.2 10.0 6.6 0.8 23.0 1988 -2.5 -1.9 5.2 10.0 15.7 20.7 24.4 23.7 19.2 13.5 5.7 1.1 26.9 1989 -7.3 -9.6 3.2 11.6 15.4 21.8 25.5 25.5 ****** 13.9 6.5 1.6 ****** 1990 -6.2 ****** 3.2 8.8 15.5 21.3 24.9 25.0 20.3 12.4 7.7 -0.1 ****** 1991 -3.8 -3.7 3.8 11.2 13.8 20.9 24.8 24.2 19.1 12.5 6.2 -2.3 28.6 1992 -8.9 ****** ****** ****** ****** 18.6 24.4 22.3 16.7 11.8 ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** 23.2 19.8 11.8 3.8 2.1 ****** 1994 0.7 -0.4 5.3 11.2 14.5 20.1 25.2 25.2 17.6 11.8 6.6 -1.7 26.9 1995 1.6 2.1 5.5 9.4 14.3 18.5 25.6 25.3 17.6 12.4 6.2 -1.4 27.0 1996 -2.2 1.4 2.1 9.1 15.9 20.5 23.8 23.5 19.5 12.4 5.9 3.2 26.0 1997 -0.3 -2.1 2.0 8.8 14.5 20.8 25.7 25.8 17.8 12.8 5.9 1.0 27.9 1998 -6.2 -2.7 3.1 11.3 15.0 22.1 24.4 24.5 19.8 12.9 8.5 6.1 30.7 1999 -0.4 2.4 4.4 10.6 16.9 21.9 24.0 24.9 19.0 13.7 4.7 0.9 25.3 2000 -2.5 -4.8 4.1 12.3 17.2 22.5 25.1 24.7 19.9 11.1 4.8 -0.2 29.9 2001 -1.7 -0.1 7.1 12.1 16.0 21.8 24.5 24.2 19.2 13.2 6.2 3.5 26.2 2002 -3.4 ****** 6.6 9.1 14.7 20.3 24.8 24.8 20.7 15.3 6.0 -1.5 ****** 2003 -1.6 -1.3 3.5 11.7 14.2 20.8 26.1 25.1 19.2 14.3 5.5 0.6 27.7 MEAN -3.6 -2.2 4.0 10.2 14.8 20.8 24.5 24.0 18.8 12.4 5.7 -0.0 28.1 SD 3.58 3.60 1.87 1.12 1.50 1.17 1.01 1.78 1.26 1.23 1.40 2.95 1.87 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 -20.8 -14.5 0.2 3.9 3.4 10.3 12.2 4.9 2.8 3.6 -2.6 -6.7 -0.3 1973 -16.2 -8.0 -2.0 2.4 7.1 13.2 16.3 16.0 10.2 5.8 -3.3 -7.1 2.9 1974 -11.5 -11.8 -0.1 2.8 6.7 12.3 15.5 14.7 9.5 2.3 -0.0 -12.8 2.3 1975 -10.8 -10.6 -3.5 2.3 7.1 12.6 16.7 15.8 10.7 1.4 -3.1 -6.9 2.6 1976 -6.6 -8.3 -5.6 2.4 6.0 11.8 15.9 15.6 10.1 3.4 -2.0 -4.0 3.2 1977 -13.3 -9.6 1.0 4.2 7.9 13.2 17.1 15.4 10.5 3.7 -0.8 -5.3 3.7 1978 -7.9 -2.7 -1.4 2.6 6.3 10.5 14.6 14.9 9.9 4.3 -4.2 -0.8 3.8 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 -12.3 -10.4 -4.2 3.4 6.7 12.0 16.3 16.2 8.3 2.4 -0.2 -5.6 2.7 1981 -8.7 -4.0 -0.6 2.3 5.3 10.3 15.8 16.2 8.7 4.9 -1.5 -2.4 3.9 1982 -6.5 -13.5 -4.7 4.2 8.5 10.6 13.7 15.4 10.1 4.8 -2.3 -11.8 2.4 1983 ****** ****** ****** 2.4 8.2 12.2 16.3 17.3 10.7 3.0 1.2 -3.9 ****** 1984 -5.9 -6.1 -0.3 3.1 5.0 13.8 17.5 16.3 10.6 4.1 0.6 -10.0 4.1 1985 -6.8 -5.9 -4.4 3.3 7.9 12.6 17.7 ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 -5.2 -3.4 -1.5 1.6 9.1 13.4 15.8 15.2 10.4 4.3 -0.6 -4.4 4.6 1988 -7.5 -6.2 -0.9 3.4 7.5 12.2 16.8 16.0 9.8 5.2 -2.1 -5.4 4.1 1989 -13.8 -17.3 -1.8 3.3 7.2 12.3 17.2 18.1 ****** 5.3 -0.3 -4.3 ****** 1990 -12.2 ****** -3.3 1.0 7.3 11.8 17.5 16.9 10.4 4.3 -0.3 -7.5 ****** 1991 -9.3 -9.5 -1.2 3.8 5.6 12.3 17.2 16.2 9.8 5.0 -1.4 -7.6 3.4 1992 -15.5 ****** ****** ****** ****** 10.8 16.2 15.1 7.1 2.5 ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** 15.3 10.7 4.4 -1.2 -3.3 ****** 1994 -4.0 -5.5 -0.9 4.3 7.3 11.5 17.6 16.9 9.3 4.4 1.3 -6.8 4.6 1995 -5.1 -4.1 -1.8 2.5 7.7 10.5 17.8 16.6 9.3 4.9 -2.0 -7.8 4.0 1996 -6.4 -2.9 -2.3 3.2 8.5 12.3 16.8 15.2 10.4 4.3 -0.9 -2.8 4.6 1997 -6.6 -9.2 -3.5 2.1 7.2 12.9 17.6 17.8 8.9 4.5 0.6 -3.8 4.0 1998 -12.3 -7.5 -2.3 4.2 8.0 14.3 16.8 17.0 11.3 4.5 0.6 -0.7 4.5 1999 -5.6 -4.3 -3.0 3.0 8.1 13.2 16.5 17.0 10.0 5.5 -1.3 -5.2 4.5 2000 -8.5 -12.4 -3.2 4.5 8.4 14.0 17.4 16.7 11.4 4.5 -0.5 -4.3 4.0 2001 -7.1 -6.2 -0.8 3.9 7.6 13.2 16.6 15.0 10.6 5.1 -0.3 -1.7 4.6 2002 -8.6 ****** -1.2 3.6 6.5 11.3 17.2 16.0 10.8 6.5 0.2 -5.6 ****** 2003 -5.7 -6.5 -2.1 5.0 6.5 12.4 18.1 17.0 10.2 6.1 -0.3 -4.4 4.7 MEAN -9.3 -8.0 -2.1 3.2 7.1 12.2 16.5 15.7 9.7 4.3 -1.0 -5.5 3.6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 -4.6 -4.1 10.1 16.4 17.0 25.4 30.8 26.9 26.2 22.8 13.2 1.8 15.2 1973 -2.8 3.8 11.1 16.8 22.2 30.4 32.9 32.3 28.0 22.7 12.1 6.2 18.0 1974 -2.3 -2.3 8.9 15.5 24.2 30.0 29.2 30.1 25.5 20.3 14.1 0.5 16.1 1975 0.8 1.3 9.6 18.6 21.0 29.2 34.9 32.2 28.2 19.8 10.4 2.6 17.4 1976 3.7 2.5 6.4 14.9 20.5 28.9 33.8 33.2 27.9 20.0 12.3 7.0 17.6 1977 -3.8 3.7 14.1 16.8 22.4 29.9 32.4 32.0 28.3 18.2 12.1 4.4 17.5 1978 3.2 7.9 12.6 18.6 23.2 28.4 32.2 32.6 29.8 22.7 9.0 8.7 19.1 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 -0.4 0.9 7.3 18.2 23.5 29.7 33.8 32.9 27.8 20.3 12.6 7.0 17.8 1981 3.3 6.9 11.8 16.4 20.9 27.5 32.6 33.0 27.9 18.8 14.0 9.1 18.5 1982 4.4 -0.3 7.0 19.8 22.8 29.6 32.6 31.8 27.7 17.1 8.3 -1.6 16.6 1983 ****** ****** ****** 14.6 21.9 29.5 33.6 33.8 28.2 21.2 14.6 4.2 ****** 1984 5.1 4.3 11.9 17.5 18.2 29.4 32.4 32.7 28.7 19.6 10.4 -0.5 17.5 1985 4.5 5.4 6.8 16.7 24.0 30.5 32.9 ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 6.7 10.3 9.6 17.9 24.8 30.5 31.8 32.0 28.1 15.7 13.9 6.0 18.9 1988 2.4 2.4 11.4 16.6 23.9 29.2 32.1 31.4 28.7 21.8 13.5 7.6 18.4 1989 -0.8 -1.9 8.1 20.0 23.5 31.4 33.9 33.0 ****** 22.5 13.3 7.6 ****** 1990 -0.3 ****** 9.7 16.7 23.6 30.8 32.3 33.1 30.2 20.6 15.6 7.3 ****** 1991 1.7 2.2 8.8 18.6 22.0 29.5 32.5 32.2 28.4 20.1 13.9 3.0 17.7 1992 -2.2 ****** ****** ****** ****** 26.4 32.5 29.5 26.2 21.1 ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** 31.1 28.9 19.2 8.8 7.4 ****** 1994 5.4 4.7 11.5 18.2 21.8 28.8 32.8 33.4 25.9 19.2 11.8 3.3 18.1 1995 8.3 8.2 12.9 16.3 21.0 26.5 33.5 34.0 25.9 19.9 14.3 5.0 18.8 1996 0.5 5.8 6.5 15.0 23.2 28.7 30.7 31.9 28.6 20.4 12.8 9.2 17.8 1997 6.0 5.1 7.6 15.4 21.9 28.8 33.9 33.7 26.7 21.1 11.2 5.9 18.1 1998 -0.1 2.0 8.5 18.4 22.0 30.0 32.0 32.1 28.4 21.2 16.3 13.0 18.6 1999 4.7 9.2 11.8 18.2 25.7 30.7 31.6 32.8 28.1 21.9 10.6 7.0 19.4 2000 3.5 2.8 11.4 20.1 26.0 31.0 32.9 32.6 28.4 17.8 10.2 3.9 18.4 2001 3.6 5.8 15.1 20.3 24.5 30.5 32.4 33.5 27.8 21.3 12.7 8.6 19.7 2002 1.8 ****** 14.5 14.6 22.8 29.2 32.5 33.6 30.5 23.8 11.8 2.7 ****** 2003 2.9 3.8 9.0 18.2 21.9 29.3 34.1 33.2 28.2 22.5 11.3 5.2 18.3 MEAN 2.0 3.6 10.1 17.3 22.5 29.3 32.6 32.3 28.0 20.5 12.3 5.4 18.0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 16.2 10.4 9.9 12.5 13.6 15.1 18.6 22.0 23.4 19.2 15.8 8.5 15.4 1973 13.4 11.8 13.1 14.4 15.1 17.2 16.6 16.3 17.8 16.9 15.4 13.3 15.1 1974 9.2 9.5 9.0 12.7 17.5 17.7 13.7 15.4 16.0 18.0 14.1 13.3 13.8 1975 11.6 11.9 13.1 16.3 13.9 16.6 18.2 16.4 17.5 18.4 13.5 9.5 14.7 1976 10.3 10.8 12.0 12.5 14.5 17.1 17.9 17.6 17.8 16.6 14.3 11.0 14.4 1977 9.5 13.3 13.1 12.6 14.5 16.7 15.3 16.6 17.8 14.5 12.9 9.7 13.9 1978 11.1 10.6 14.0 16.0 16.9 17.9 17.6 17.7 19.9 18.4 13.2 9.5 15.2 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 11.9 11.3 11.5 14.8 16.8 17.7 17.5 16.7 19.5 17.9 12.8 12.6 15.1 1981 12.0 10.9 12.4 14.1 15.6 17.2 16.8 16.8 19.2 13.9 15.5 11.5 14.7 1982 10.9 13.2 11.7 15.6 14.3 19.0 18.9 16.4 17.6 12.3 10.6 10.2 14.2 1983 ****** ****** ****** 12.2 13.7 17.3 17.3 16.5 17.5 18.2 13.4 8.1 ****** 1984 11.0 10.3 12.2 14.4 13.2 15.6 14.9 16.4 18.1 15.5 9.8 9.5 13.4 1985 11.2 11.3 11.2 13.4 16.1 17.9 15.2 ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 11.9 13.7 11.1 16.3 15.7 17.1 16.0 16.8 17.7 11.4 14.5 10.4 14.4 1988 9.9 8.6 12.3 13.2 16.4 17.0 15.3 15.4 18.9 16.6 15.6 13.0 14.3 1989 13.0 15.4 9.9 16.7 16.3 19.1 16.7 14.9 ****** 17.2 13.6 11.9 ****** 1990 11.9 ****** 13.0 15.7 16.3 19.0 14.8 16.2 19.8 16.3 15.8 14.8 ****** 1991 11.0 11.7 10.0 14.8 16.4 17.2 15.3 16.0 18.6 15.1 15.3 10.6 14.3 1992 13.3 ****** ****** ****** ****** 15.6 16.3 14.4 19.1 18.6 ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** 15.8 18.2 14.8 10.0 10.7 ****** 1994 9.4 10.2 12.4 13.9 14.5 17.3 15.2 16.5 16.6 14.8 10.5 10.1 13.4 1995 13.4 12.3 14.7 13.8 13.3 16.0 15.7 17.4 16.6 15.0 16.3 12.8 14.8 1996 6.9 8.7 8.8 11.8 14.7 16.4 13.9 16.7 18.2 16.1 13.6 12.0 13.1 1997 12.6 14.3 11.1 13.3 14.7 15.9 16.3 15.9 17.8 16.6 10.6 9.7 14.1 1998 12.2 9.5 10.8 14.2 14.0 15.7 15.2 15.1 17.1 16.7 15.7 13.7 14.2 1999 10.3 13.5 14.8 15.2 17.6 17.5 15.1 15.8 18.1 16.4 11.9 12.2 14.9 2000 12.0 15.2 14.6 15.6 17.6 17.0 15.5 15.9 17.0 13.3 10.7 8.2 14.4 2001 10.7 12.0 15.9 16.4 16.9 17.3 15.8 18.5 17.2 16.2 13.0 10.3 15.0 2002 10.4 ****** 15.7 11.0 16.3 17.9 15.3 17.6 19.7 17.3 11.6 8.3 ****** 2003 8.6 10.3 11.1 13.2 15.4 16.9 16.0 16.2 18.0 16.4 11.6 9.6 13.6 MEAN 11.3 11.6 12.2 14.2 15.4 17.1 16.1 16.5 18.2 16.2 13.3 10.9 14.4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 1.26 1.72 4.87 4.66 6.39 6.87 7.02 6.32 4.68 4.21 3.20 2.73 4.49 1973 1.35 2.54 3.20 4.15 5.73 5.66 7.63 6.49 4.90 3.80 2.89 2.30 4.22 1974 1.70 1.74 4.42 4.57 5.22 5.80 7.50 5.85 4.86 2.77 2.67 1.37 4.04 1975 1.80 1.85 3.02 4.16 6.75 6.46 6.55 5.85 4.15 3.45 2.55 2.12 4.06 1976 2.32 1.84 2.60 4.97 6.72 6.55 8.10 5.29 4.10 4.22 2.91 2.53 4.35 1977 1.51 1.82 3.99 4.89 6.17 6.19 6.77 6.18 4.85 4.33 3.87 2.50 4.42 1978 2.15 3.15 3.22 4.03 4.75 5.39 5.44 5.06 4.22 3.98 2.60 3.82 3.99 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 1.84 2.18 3.49 4.85 5.62 6.15 5.88 7.21 4.69 3.36 4.16 2.75 4.35 1981 2.42 3.05 3.80 4.66 5.36 7.30 7.73 7.36 4.61 5.22 3.25 3.36 4.85 1982 2.84 2.02 3.47 5.58 7.99 6.68 6.04 6.65 6.52 6.17 3.87 1.87 4.97 1983 ****** ****** ****** 5.01 7.96 8.03 6.64 7.48 5.88 3.32 4.29 3.51 ****** 1984 2.99 2.93 4.08 4.75 6.21 6.54 6.55 7.16 5.30 3.83 4.77 2.38 4.79 1985 3.01 2.88 3.51 4.97 6.03 6.43 7.52 ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 3.00 3.45 3.98 4.56 6.68 6.67 8.13 7.98 5.86 5.15 3.63 3.09 5.18 1988 2.65 2.97 3.88 5.51 5.97 7.19 8.93 8.44 5.14 4.91 3.74 2.88 5.18 1989 ****** ****** 4.11 4.75 5.66 6.25 8.04 7.78 ****** 5.34 4.30 3.32 ****** 1990 2.16 ****** 3.64 4.46 5.95 6.12 7.49 7.61 6.57 4.53 3.49 2.42 ****** 1991 2.35 2.43 3.92 4.81 4.95 5.89 7.07 7.09 5.87 5.54 3.77 2.83 4.71 1992 1.62 ****** ****** ****** ****** 7.51 8.14 8.94 6.46 3.43 ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** 7.08 6.57 4.28 4.33 3.32 ****** 1994 3.18 2.81 3.86 5.10 6.50 6.98 8.11 6.35 4.73 4.65 4.55 2.51 4.94 1995 2.57 2.91 3.58 5.16 6.86 7.50 7.00 5.56 4.73 4.36 3.05 2.22 4.62 1996 2.80 3.52 3.67 4.85 6.64 7.53 8.73 5.85 4.86 4.41 3.16 3.53 4.96 1997 2.72 2.28 3.30 4.63 6.18 8.28 8.43 7.90 6.83 5.59 4.35 3.31 5.32 1998 1.92 2.73 4.03 5.37 7.29 8.07 8.92 8.38 7.55 4.91 3.38 3.26 5.48 1999 3.06 3.20 3.31 5.24 6.94 8.96 10.51 10.25 7.70 5.94 4.02 3.09 6.02 2000 2.42 1.89 3.64 5.72 6.08 8.97 10.34 9.07 7.65 5.74 3.85 3.36 5.73 2001 2.27 2.22 3.76 5.48 7.25 9.61 11.18 10.31 7.86 5.70 3.91 3.93 6.12 2002 2.27 ****** 3.80 5.58 5.92 7.40 6.47 5.80 3.82 3.98 4.09 3.09 ****** 2003 2.84 2.70 3.56 5.21 5.57 6.58 7.81 7.42 3.96 4.65 4.05 3.21 4.80 MEAN 2.34 2.54 3.70 4.92 6.27 7.02 7.75 7.20 5.54 4.55 3.67 2.88 4.86 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 2.52 2.25 4.83 5.10 6.76 7.46 7.49 7.19 6.07 5.26 4.43 4.22 5.30 1973 2.93 4.16 3.94 3.75 4.90 5.79 8.17 6.56 5.89 3.80 3.65 3.70 4.77 1974 2.94 2.89 6.07 4.49 5.37 5.60 7.72 6.66 5.74 3.89 4.19 3.14 4.89 1975 3.57 3.90 4.50 4.94 6.70 6.62 6.75 6.48 5.41 4.28 4.24 3.99 5.12 1976 4.19 3.83 4.49 5.64 6.64 7.20 9.63 7.37 6.27 5.92 4.78 4.22 5.85 1977 2.32 4.04 4.68 4.94 6.04 6.31 7.28 7.56 6.52 6.10 5.16 4.07 5.42 1978 4.34 4.59 4.07 3.89 4.89 5.89 6.95 7.56 6.46 5.59 3.86 4.66 5.23 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 3.45 3.72 5.02 5.44 5.42 6.16 7.67 8.47 6.16 5.21 5.53 3.90 5.51 1981 3.77 4.27 4.23 4.76 5.80 6.79 7.32 7.77 4.70 5.77 3.97 4.95 5.34 1982 4.39 3.60 4.89 6.01 9.04 6.16 6.46 7.42 8.92 7.81 5.11 2.91 6.06 1983 ****** ****** ****** 5.11 7.80 7.89 7.01 7.78 6.29 3.61 4.71 4.25 ****** 1984 3.92 4.34 4.57 4.36 6.11 6.59 6.01 7.14 5.60 4.70 5.58 3.66 5.21 1985 4.49 4.12 4.42 5.01 5.56 5.62 7.35 ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 4.46 4.25 4.88 4.30 6.09 6.19 9.26 7.78 6.80 6.21 4.75 4.38 5.78 1988 4.37 4.20 4.08 6.33 6.12 7.07 10.12 8.91 6.45 6.29 4.79 4.07 6.07 1989 3.76 ****** 5.32 4.50 5.31 6.16 8.39 8.11 ****** 7.85 5.99 4.73 ****** 1990 3.76 ****** 4.36 3.87 5.32 4.91 7.68 8.13 6.67 6.05 4.55 3.82 ****** 1991 4.18 4.19 4.50 5.07 5.43 5.79 7.15 7.36 6.14 6.56 5.02 4.52 5.49 1992 3.15 ****** ****** ****** ****** 7.01 9.38 10.71 12.80 4.26 ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** 9.15 8.00 7.55 5.92 4.66 ****** 1994 4.56 4.05 4.14 5.51 6.49 7.94 8.32 6.17 5.08 5.27 5.68 3.87 5.59 1995 4.08 4.27 4.03 5.74 7.96 8.05 6.55 6.96 5.06 4.76 3.82 3.28 5.38 1996 3.65 4.56 4.72 5.17 7.40 6.71 8.29 6.13 5.08 4.73 3.31 4.34 5.34 1997 4.40 4.35 4.74 5.21 6.48 7.63 8.78 8.14 7.31 8.11 5.79 5.10 6.34 1998 3.72 4.67 5.35 5.31 7.14 6.49 9.00 7.89 8.33 5.79 5.28 5.11 6.17 1999 4.70 5.24 5.69 6.90 9.96 9.32 12.66 12.30 10.96 9.28 6.46 5.08 8.21 2000 4.24 3.99 6.17 8.73 8.51 10.49 14.49 10.86 10.24 9.24 6.62 4.70 8.19 2001 3.95 4.47 6.14 7.89 9.97 11.37 13.37 14.84 11.95 9.91 6.83 5.94 8.89 2002 3.81 ****** 4.93 6.62 7.04 8.65 8.31 5.42 4.66 5.18 6.39 4.65 ****** 2003 3.98 4.40 5.14 5.60 5.33 5.03 6.45 7.43 3.94 5.68 6.34 4.86 5.35 MEAN 3.85 4.10 4.82 5.37 6.63 7.00 8.42 8.08 6.92 6.03 5.10 4.32 5.88 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 1.85 1.99 4.45 5.45 6.45 7.09 7.17 7.14 5.54 4.54 4.29 3.38 4.95 1973 1.71 3.26 3.69 3.80 4.84 5.29 7.91 6.45 5.49 4.23 3.42 2.90 4.42 1974 2.34 2.42 5.34 4.03 4.61 5.01 7.43 5.56 5.24 3.49 4.15 2.50 4.34 1975 2.81 3.26 4.05 4.21 6.29 6.51 6.55 6.28 5.06 4.38 3.85 3.22 4.71 1976 3.81 3.48 3.84 4.96 6.47 6.25 9.41 6.96 5.62 5.40 4.37 3.57 5.34 1977 1.65 3.03 4.36 4.94 6.07 6.70 7.12 7.19 5.53 5.42 4.86 3.36 5.02 1978 3.57 4.44 4.69 3.74 4.87 5.20 6.43 6.61 6.26 5.30 3.28 4.10 4.87 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 2.66 3.05 4.40 5.14 4.49 6.03 7.40 8.11 5.86 4.57 5.24 3.44 5.03 1981 3.11 4.03 4.43 4.66 5.72 6.94 7.21 7.23 4.26 5.43 4.07 4.83 5.16 1982 4.01 2.84 4.63 5.80 8.96 6.21 6.52 6.85 8.17 7.32 4.77 2.42 5.71 1983 ****** ****** ****** 5.15 8.00 7.91 6.88 7.12 5.98 4.09 4.82 4.11 ****** 1984 3.81 3.68 4.37 4.26 6.02 6.55 5.81 7.11 5.46 4.66 5.24 2.96 4.99 1985 3.96 3.63 4.25 4.78 5.26 5.51 7.16 ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 4.14 4.13 4.73 4.54 6.74 6.31 8.30 7.62 6.78 5.71 4.82 3.95 5.65 1988 3.45 3.63 4.15 5.97 6.47 6.73 9.59 8.12 6.32 6.36 4.70 3.94 5.79 1989 2.88 ****** 4.82 4.61 5.33 6.25 7.89 7.95 ****** 6.37 5.58 4.48 ****** 1990 3.03 ****** 4.14 4.25 5.20 5.26 7.67 7.84 6.40 5.44 4.71 3.71 ****** 1991 3.23 3.13 4.05 4.57 5.05 5.55 6.88 6.88 5.78 5.61 5.00 3.68 4.95 1992 2.21 ****** ****** ****** ****** 7.25 9.79 9.82 10.35 4.24 ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** 7.55 8.34 5.81 4.91 4.11 ****** 1994 4.09 3.65 4.27 5.64 6.38 7.58 8.74 6.42 5.34 5.08 5.38 3.40 5.50 1995 3.81 4.07 4.28 5.66 7.45 7.78 6.79 7.05 5.43 4.87 4.24 3.06 5.37 1996 3.22 4.25 4.34 5.19 7.68 7.16 8.19 5.79 5.37 4.83 3.64 4.55 5.35 1997 4.09 3.75 4.58 5.12 6.61 7.33 8.94 8.32 7.77 7.68 5.61 4.44 6.19 1998 2.91 3.88 4.91 5.36 7.93 7.79 9.84 9.19 8.92 5.98 5.47 5.06 6.44 1999 3.73 4.96 5.50 6.84 10.53 9.68 12.82 12.80 10.64 8.69 5.37 4.33 7.99 2000 3.65 3.34 6.04 8.68 9.10 11.11 13.68 11.14 10.23 8.33 5.52 4.20 7.92 2001 3.30 3.80 5.22 7.47 9.72 11.58 13.59 14.52 11.94 9.02 5.95 5.34 8.45 2002 3.20 ****** 5.14 6.72 7.61 9.43 7.93 5.95 4.73 5.15 5.47 3.98 ****** 2003 3.56 3.93 4.55 5.90 5.97 5.59 6.98 8.49 4.24 5.53 5.64 4.17 5.38 MEAN 3.21 3.57 4.57 5.27 6.64 7.03 8.30 7.87 6.68 5.64 4.80 3.83 5.61 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 1972 -34.0 25 -26.0 1 -7.0 2 0.0 6 0.0 15 4.0 3 5.0 31 -1.0 26 0.0 2 0.2 23 -7.0 21 -16.0 18 -34.0 1973 -25.0 29 -22.0 6 -10.5 9 -1.0 10 1.5 6 6.2 9 12.4 4 13.0 19 6.5 28 2.0 26 -11.5 9 -16.0 15 -25.0 1974 -24.0 30 -29.2 5 -12.2 7 -1.5 12 -0.5 2 7.0 20 9.5 21 10.0 23 4.5 27 -3.0 20 -7.5 28 -25.2 24 -29.2 1975 -20.5 31 -23.5 14 -11.5 9 -4.0 4 2.5 2 8.3 13 9.5 21 12.5 26 6.0 24 -3.5 29 -9.5 30 -14.5 31 -23.5 1976 -14.5 1 -16.0 17 -19.0 3 -1.5 21 2.5 8 7.5 10 11.8 22 9.0 26 2.0 29 -1.0 31 -7.5 30 -12.0 24 -19.0 1977 -27.5 25 -23.5 2 -5.0 12 -1.0 17 5.5 3 6.5 4 11.5 3 7.5 30 7.0 24 -2.0 24 -5.0 28 -13.6 26 -27.5 1978 -21.0 15 -7.5 1 -6.5 8 -2.5 1 -1.0 4 3.5 4 10.0 9 10.5 27 5.0 29 1.5 29 -10.5 26 -6.5 18 -21.0 1979 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1980 -20.0 9 -24.0 4 -16.0 5 -4.0 18 2.0 1 8.5 10 12.5 1 12.5 21 2.0 23 -2.0 23 -6.5 26 -14.0 21 -24.0 1981 -20.0 2 -10.0 4 -8.5 5 -9.5 2 -1.0 3 7.0 7 11.0 1 10.0 10 1.0 25 1.0 24 -7.5 23 -6.6 21 -20.0 1982 -14.5 21 -25.5 19 -12.5 6 -1.0 1 5.0 8 6.0 2 9.5 5 10.5 18 5.5 27 1.0 12 -6.5 18 -22.0 12 -25.5 1983 ***** ** ***** ** ***** ** -5.0 2 3.5 3 8.5 1 12.0 6 8.0 28 6.5 19 -1.5 22 -1.5 4 -12.5 24 ***** 1984 -15.5 31 -16.5 1 -9.5 16 -1.5 4 -3.0 2 6.5 2 12.5 2 11.5 28 5.5 29 -4.0 21 -2.5 16 -19.0 12 -19.0 1985 -19.0 7 -19.0 28 -18.5 1 0.5 8 2.0 5 8.0 12 10.5 28 ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1986 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1987 -12.5 8 -8.0 7 -8.0 15 -4.0 6 4.0 6 9.0 6 12.5 6 10.5 18 3.0 22 0.0 11 -9.5 30 -12.5 31 -12.5 1988 -14.5 30 -15.0 7 -7.0 6 -6.5 3 3.0 7 8.0 20 10.0 1 8.5 31 6.0 30 0.0 23 -11.5 15 -18.0 29 -18.0 1989 -23.0 31 -26.0 16 -8.0 31 -6.5 1 0.0 2 8.5 8 13.5 10 14.5 2 ***** ** 1.5 23 -6.0 22 -8.0 22 ***** 1990 -23.5 27 ***** ** -9.5 21 -2.5 6 2.5 8 7.0 1 11.5 7 12.0 10 5.0 28 0.5 26 -6.5 14 -21.0 27 ***** 1991 -14.5 16 -19.5 13 -11.5 11 -2.0 11 0.5 6 7.0 1 11.0 7 12.0 27 4.0 27 0.5 31 -6.5 27 -18.5 23 -19.5 1992 -26.0 29 ***** ** ***** ** ***** ** ***** ** 6.5 5 12.0 10 9.0 31 3.5 20 -2.5 28 ***** ** ***** ** ***** 1993 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 12.0 13 3.0 30 -0.5 8 -11.0 30 -9.0 1 ***** 1994 -9.0 11 -13.5 4 -7.5 17 -5.0 5 2.0 7 7.0 4 10.0 1 11.5 29 3.0 22 0.0 16 -3.0 28 -16.5 7 -16.5 1995 -10.5 23 -10.5 26 -8.5 1 -2.0 2 -1.0 9 3.0 9 12.5 6 12.0 11 3.0 22 -0.5 28 -11.0 27 -14.5 20 -14.5 1996 -17.5 24 -11.5 29 -12.5 1 -2.5 4 5.0 1 6.0 6 12.0 16 11.0 9 7.0 16 -0.5 19 -10.0 13 -10.0 16 -17.5 1997 -22.5 29 -17.0 2 -13.0 8 -7.0 12 2.0 6 6.5 3 13.5 6 11.5 31 5.0 28 0.0 25 -4.5 28 -13.0 29 -22.5 1998 -25.0 10 -22.0 18 -12.0 4 -0.5 25 2.5 1 8.5 4 12.0 7 13.0 7 8.0 23 0.5 25 -2.0 18 -7.0 6 -25.0 1999 -13.0 27 -12.0 7 -11.5 17 -1.0 12 2.5 21 9.0 8 11.5 16 13.0 31 4.0 29 1.5 24 -9.0 30 -19.0 6 -19.0 2000 -21.0 31 -23.0 9 -10.0 5 0.0 2 3.5 3 5.0 14 12.0 28 12.0 1 5.1 28 1.0 6 -5.0 12 -13.0 29 -23.0 2001 -18.0 29 -10.0 1 -6.0 12 -0.5 14 2.0 6 7.5 2 12.5 3 11.5 28 7.5 17 -1.0 30 -12.0 20 -8.0 17 -18.0 2002 -20.0 26 ***** ** -9.0 1 -2.5 1 2.0 14 5.5 7 13.5 1 12.4 30 7.0 15 2.0 31 -5.0 30 -16.0 14 ***** 2003 -12.5 21 -14.5 7 -14.0 1 -2.0 2 1.0 9 6.0 4 11.5 2 12.5 23 7.0 21 2.0 23 -7.0 23 -15.0 29 -15.0 LOW. -34.0 25 -29.2 5 -19.0 3 -9.5 2 -3.0 2 3.0 9 5.0 31 -1.0 26 0.0 2 -4.0 21 -12.0 20 -25.2 24 -34.0 YEAR 1972 1974 1976 1981 1984 1995 1972 1972 1972 1984 2001 1974 1972 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 1972 -1.0 15 -0.5 14 15.0 16 22.0 30 25.0 31 29.5 18 33.0 11 31.0 15 30.0 6 28.0 23 22.0 1 5.0 3 33.0 1973 4.0 23 13.2 28 18.5 21 24.0 26 28.0 29 35.9 22 36.7 29 36.5 4 31.5 1 27.6 7 19.2 2 13.0 4 36.7 1974 2.2 8 3.8 14 18.5 20 23.5 19 29.3 22 34.5 22 35.0 1 34.5 16 29.8 9 23.0 2 21.0 3 11.0 2 35.0 1975 5.2 5 6.5 26 18.2 26 23.5 14 29.8 30 36.5 30 37.2 6 36.0 2 32.0 7 23.0 1 18.0 1 8.0 27 37.2 1976 8.0 20 9.0 8 19.0 30 24.0 28 26.5 31 34.5 25 41.0 31 36.0 1 33.5 4 26.0 19 19.5 5 13.5 5 41.0 1977 1.5 29 13.0 28 19.0 21 22.0 30 28.5 14 34.5 25 36.5 14 35.8 11 30.5 9 28.0 2 15.5 4 14.5 4 36.5 1978 7.2 29 14.0 17 19.0 30 24.0 10 29.0 27 34.5 30 36.5 17 35.5 12 31.5 13 27.4 6 14.0 7 12.5 8 36.5 1979 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1980 5.0 14 5.5 17 17.0 26 24.5 21 28.0 22 31.5 5 36.0 4 35.5 6 32.5 4 27.0 3 17.0 12 16.5 5 36.0 1981 8.5 31 11.5 8 20.0 20 24.5 25 27.5 26 32.5 30 37.5 17 35.5 20 31.0 15 25.5 5 18.5 1 13.5 6 37.5 1982 10.0 4 4.0 3 14.5 31 23.5 22 27.0 19 32.5 18 36.0 15 35.5 3 31.0 1 22.0 1 15.5 21 5.0 4 36.0 1983 ***** ** ***** ** ***** ** 20.5 17 26.0 29 32.5 17 36.5 14 38.0 4 32.5 10 26.5 1 20.0 1 12.5 8 ***** 1984 10.0 5 13.0 12 20.0 10 23.0 20 23.0 27 33.0 11 35.5 22 35.0 16 34.5 2 25.0 1 17.0 2 6.4 1 35.5 1985 11.5 28 14.0 15 16.0 20 27.0 18 31.0 30 35.5 26 36.0 20 ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1986 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1987 15.0 31 16.5 3 14.5 7 24.5 30 29.0 16 34.5 29 36.5 19 35.5 8 32.5 6 27.5 2 18.0 6 12.0 12 36.5 1988 7.0 4 11.0 29 18.5 20 22.5 18 29.5 27 34.0 13 36.5 21 36.5 1 34.0 15 26.0 5 20.0 3 15.5 5 36.5 1989 5.0 20 8.5 28 17.0 25 24.0 15 31.0 25 37.0 30 38.0 14 36.0 9 ***** ** 28.0 8 18.0 29 12.0 1 ***** 1990 5.0 1 ***** ** 15.5 24 25.0 30 30.0 22 35.0 29 36.5 17 36.5 4 32.0 1 25.5 3 21.0 4 17.5 6 ***** 1991 6.0 31 8.5 26 19.0 31 24.0 22 26.5 29 36.0 28 38.2 21 36.5 5 34.0 1 24.0 7 21.5 3 8.0 4 38.2 1992 3.0 22 ***** ** ***** ** ***** ** ***** ** 35.0 30 36.0 5 33.5 5 28.5 2 24.5 3 ***** ** ***** ** ***** 1993 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 34.0 14 32.5 1 26.5 1 15.5 8 13.0 22 ***** 1994 12.0 4 11.5 27 19.5 31 25.0 22 29.0 31 32.5 10 36.5 30 36.5 3 31.5 1 24.5 1 16.5 2 10.5 1 36.5 1995 12.5 29 13.0 21 17.5 25 22.0 1 25.5 19 32.5 21 37.5 16 35.5 5 31.5 1 26.0 1 20.5 1 10.0 28 37.5 1996 10.5 2 14.0 25 18.5 30 21.5 21 29.0 30 32.0 3 33.5 18 35.0 12 32.0 11 26.0 1 18.0 2 14.5 29 35.0 1997 13.0 6 13.0 18 14.0 22 26.5 26 28.0 27 31.0 26 38.0 30 37.0 14 31.0 1 26.0 6 14.5 5 12.0 8 38.0 1998 5.0 25 9.5 2 18.0 24 25.5 15 28.0 11 35.0 29 36.0 11 35.0 17 33.5 2 26.5 5 20.0 20 20.0 10 36.0 1999 10.0 14 14.0 26 19.0 31 23.5 30 33.0 31 35.0 22 37.0 3 35.0 1 32.0 3 27.0 1 16.0 25 14.0 31 37.0 2000 14.5 1 13.0 25 16.5 30 24.0 20 32.5 30 36.0 23 37.5 1 35.0 2 33.5 9 22.5 10 15.0 1 8.0 4 37.5 2001 9.6 12 13.5 28 22.0 31 23.5 4 30.0 30 36.0 23 36.0 7 36.5 3 32.0 3 27.0 6 21.5 6 14.0 28 36.5 2002 12.5 1 ***** ** 21.0 27 23.0 28 29.0 28 34.0 29 35.5 14 37.5 10 34.5 3 28.5 1 19.0 11 10.5 8 ***** 2003 13.0 13 8.5 3 16.0 12 26.0 6 26.0 16 34.0 23 36.5 10 36.5 12 32.5 10 26.5 1 16.5 6 13.0 18 36.5 HIG. 15.0 31 16.5 3 22.0 31 27.0 18 33.0 31 37.0 30 41.0 31 38.0 4 34.5 2 28.5 1 22.0 1 20.0 10 41.0 YEAR 1987 1987 2001 1985 1999 1989 1976 1983 1984 2002 1972 1998 1976 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 1972 62.0 7 76.0 19 66.0 31 75.0 23 98.0 2 30.0 8 0.0 ** 10.0 20 0.0 ** 34.0 7 99.0 4 60.0 12 99.0 1973 13.0 1 17.0 8 7.5 31 24.4 16 8.5 10 0.0 ** 4.0 24 0.0 ** 0.0 ** 1.0 4 4.8 23 4.2 13 24.4 1974 15.2 24 20.5 26 7.5 11 16.5 4 8.5 4 5.0 11 4.0 15 0.0 ** 0.0 ** 0.0 ** 1.2 20 20.5 5 20.5 1975 10.0 27 22.4 21 23.6 13 23.0 24 24.0 6 6.0 5 0.0 ** 0.0 ** 0.0 ** 7.2 2 16.0 27 12.0 22 24.0 1976 25.0 21 10.0 10 6.4 13 15.0 24 20.0 16 7.0 6 0.0 ** 0.0 ** 0.0 ** 11.0 29 2.0 27 12.0 10 25.0 1977 10.6 28 2.0 10 24.0 4 12.0 24 11.0 14 8.0 1 0.0 ** 8.0 29 0.0 ** 22.0 26 30.0 12 12.0 15 30.0 1978 10.0 21 9.0 23 13.0 6 4.0 25 4.0 8 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.4 30 10.0 13 16.4 10 16.4 1979 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1980 19.6 6 14.9 25 15.0 19 15.0 3 6.5 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.0 25 12.0 20 9.0 31 19.6 1981 8.0 3 29.0 20 11.0 31 13.0 11 13.5 6 7.0 26 0.0 ** 0.0 ** 0.0 ** 17.0 13 6.0 29 14.0 14 29.0 1982 6.2 6 8.5 14 12.0 18 4.8 7 17.0 6 0.0 ** 0.0 ** 0.0 ** 2.5 30 28.0 8 9.0 1 17.0 30 28.0 1983 ***** ** ***** ** ***** ** 9.5 23 8.5 18 2.0 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 9.0 29 16.2 11 ***** 1984 6.8 14 6.2 5 36.0 25 11.0 23 11.0 10 7.0 2 0.0 ** 1.5 12 0.0 ** 28.0 19 22.0 25 14.0 25 36.0 1985 14.0 15 16.0 2 12.5 18 15.0 6 0.0 ** 0.0 ** 0.0 ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1986 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1987 6.5 26 10.0 10 26.0 4 12.0 4 8.0 19 0.0 ** 2.5 26 0.0 ** 0.0 ** 35.5 26 0.0 ** 27.5 20 35.5 1988 11.0 7 15.0 2 9.4 8 22.0 25 2.8 20 0.0 ** 1.0 9 5.0 25 0.0 ** 7.5 16 3.0 20 25.0 17 25.0 1989 7.0 27 10.0 11 24.0 16 0.0 ** 11.5 7 0.0 ** 0.0 ** 0.0 ** ***** ** 6.5 21 13.0 15 16.0 2 ***** 1990 12.0 1 ***** ** 7.0 14 22.0 2 14.0 13 0.0 ** 11.0 7 0.0 ** 0.0 ** 14.5 28 11.0 12 16.0 25 ***** 1991 7.0 2 8.0 27 12.0 13 20.6 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.0 20 0.0 ** 27.0 12 27.0 1992 7.0 30 ***** ** ***** ** ***** ** ***** ** 10.0 7 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** ** ***** ** ***** 1993 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 0.0 ** 0.0 ** 12.5 29 18.0 26 11.0 15 ***** 1994 8.0 17 32.0 1 24.0 1 29.5 30 16.2 15 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.5 31 39.5 7 5.0 13 39.5 1995 3.0 18 17.0 23 12.0 15 14.0 24 21.5 29 13.0 3 0.0 ** 0.0 ** 0.0 ** 2.0 15 6.5 3 3.5 9 21.5 1996 16.5 5 12.0 19 35.0 2 27.0 3 15.0 10 3.0 29 2.0 3 6.0 30 0.0 ** 4.0 13 0.0 ** 14.0 22 35.0 1997 12.8 16 12.0 19 33.0 29 33.5 5 6.5 5 3.6 7 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.0 1 10.0 4 33.5 1998 17.0 5 16.0 15 30.2 17 11.6 5 19.7 13 1.0 19 1.5 25 16.0 2 1.5 14 5.0 10 4.5 12 6.0 4 30.2 1999 12.5 1 18.4 20 19.4 17 15.5 2 4.0 9 0.0 ** 18.5 15 0.0 ** 0.0 ** 11.6 31 5.7 1 12.0 2 19.4 2000 23.9 29 20.0 14 23.8 24 6.4 21 2.4 7 0.0 ** 0.0 ** 0.0 ** 2.2 29 22.2 17 12.0 29 32.0 1 32.0 2001 12.0 24 8.0 15 9.4 10 15.2 8 26.0 3 3.0 12 6.0 19 6.0 12 2.5 20 4.5 26 14.0 23 21.0 5 26.0 2002 28.0 7 ***** ** 21.0 18 41.5 19 14.5 3 0.0 ** 2.0 24 0.0 ** 0.0 ** 16.4 31 19.7 1 57.4 9 ***** 2003 23.0 16 23.8 4 16.0 26 28.5 16 13.0 29 0.0 ** 0.0 ** 0.0 ** 0.0 ** 53.2 29 11.4 11 22.0 27 53.2 HIG. 62.0 7 76.0 19 66.0 31 75.0 23 98.0 2 30.0 8 18.5 15 16.0 2 2.5 30 53.2 29 99.0 4 60.0 12 99.0 YEAR 1972 1972 1972 1972 1972 1972 1999 1998 1982 2003 1972 1972 1972 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1972 203.0 86.0 159.9 236.0 571.2 47.0 0.0 20.0 0.0 97.0 187.1 77.4 1684.6 26.6 50.7 1.2 21.5 1973 38.0 51.0 24.9 41.9 11.0 0.0 8.8 0.0 0.0 1.0 9.6 16.0 202.2 56.3 26.2 4.4 13.2 1974 70.0 76.9 54.0 40.8 10.5 8.7 7.8 0.0 0.0 0.0 2.2 56.3 327.2 61.4 18.3 2.4 17.9 1975 32.2 61.2 42.8 67.5 82.2 8.0 0.0 0.0 0.0 12.4 37.3 53.3 396.9 34.3 39.7 0.0 26.0 1976 32.4 31.1 18.6 98.3 36.0 12.0 0.0 0.0 0.0 27.0 2.0 41.0 298.4 27.5 49.0 0.0 23.5 1977 35.4 2.8 39.0 44.7 52.6 17.0 0.0 11.0 0.0 57.0 64.0 28.4 351.9 21.9 32.5 3.1 42.5 1978 24.6 26.8 30.0 8.0 12.0 0.0 0.0 0.0 0.0 1.4 15.0 63.8 181.6 44.8 11.0 0.0 44.2 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1980 64.2 37.5 57.0 51.0 6.5 0.0 0.0 0.0 0.0 4.0 48.0 22.6 290.8 54.6 19.8 0.0 25.7 1981 21.3 76.8 53.8 61.8 38.0 19.0 0.0 0.0 0.0 35.0 8.2 40.2 354.1 42.9 33.5 0.0 23.6 1982 21.4 40.7 45.1 12.0 46.5 0.0 0.0 0.0 2.5 79.2 20.0 40.4 307.8 34.8 19.0 0.8 45.4 1983 ****** ****** ****** 40.9 30.9 3.5 0.0 0.0 0.0 0.0 42.5 43.4 ****** ***** 46.7 0.0 53.3 1984 18.1 17.3 80.8 32.0 70.2 7.0 0.0 1.5 0.0 28.0 97.8 47.0 399.7 29.1 27.3 0.4 43.2 1985 39.5 39.0 38.5 35.5 0.0 0.0 0.0 ****** ****** ****** ****** ****** ****** 76.7 23.3 0.0 ***** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1987 13.5 29.7 123.3 17.5 12.5 0.0 2.5 0.0 0.0 112.6 0.0 63.8 375.4 44.4 8.0 0.7 47.0 1988 47.4 41.3 36.6 90.7 2.8 0.0 1.0 5.0 0.0 11.5 7.5 60.5 304.3 41.2 30.7 2.0 26.1 1989 28.0 40.0 83.0 0.0 11.5 0.0 0.0 0.0 ****** 14.9 26.5 44.5 ****** 60.8 4.6 0.0 34.6 1990 56.0 ****** 25.6 36.0 29.5 0.0 19.0 0.0 0.0 28.5 11.0 21.0 ****** 36.0 28.9 8.4 26.7 1991 24.0 29.5 70.0 31.8 0.0 0.0 0.0 0.0 0.0 23.5 0.0 99.5 278.3 44.4 11.4 0.0 44.2 1992 31.0 ****** ****** ****** ****** 16.0 0.0 0.0 0.0 0.0 ****** ****** ****** 66.0 34.0 0.0 0.0 1993 ****** ****** ****** ****** ****** ****** ****** 0.0 0.0 17.0 98.5 27.0 ****** ***** ***** 0.0 100.0 1994 37.0 47.0 44.5 61.5 32.0 0.0 0.0 0.0 0.0 22.5 187.2 21.6 453.3 28.3 20.6 0.0 51.0 1995 5.5 54.0 53.0 47.2 72.5 19.0 0.0 0.0 0.0 2.0 9.5 8.5 271.2 41.5 51.1 0.0 7.4 1996 50.2 90.3 96.0 81.5 30.0 4.0 2.0 6.0 0.0 4.0 0.0 30.4 394.4 60.0 29.3 2.0 8.7 1997 26.4 24.0 106.0 89.3 12.7 3.6 0.0 0.0 0.0 0.0 26.7 47.6 336.3 46.5 31.4 0.0 22.1 1998 82.4 50.8 131.7 35.8 41.1 1.0 1.7 18.2 1.7 8.0 4.5 6.5 383.4 69.1 20.3 5.6 5.0 1999 48.2 40.9 44.3 40.5 9.5 0.0 20.5 0.0 0.0 17.6 16.4 33.0 270.9 49.2 18.5 7.6 24.7 2000 73.3 29.0 72.6 11.8 2.4 0.0 0.0 0.0 2.2 66.2 19.2 120.8 397.5 44.0 3.6 0.6 51.9 2001 18.2 15.6 42.0 32.8 57.0 3.0 7.6 6.0 5.0 7.0 32.0 70.7 296.9 25.5 31.3 6.3 36.9 2002 77.0 ****** 60.2 155.8 18.0 0.0 2.0 0.0 0.0 28.6 55.1 134.5 ****** 25.8 32.7 0.4 41.1 2003 68.4 101.6 90.9 88.1 17.5 0.0 0.0 0.0 0.0 89.8 34.2 62.6 553.1 47.2 19.1 0.0 33.7 MEAN 46.0 45.6 63.9 56.8 47.0 5.8 2.5 2.3 0.4 27.4 37.9 49.4 385.0 40.4 28.5 1.4 29.8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 17 3 10 8 20 5 0 2 0 5 4 5 79 1973 8 7 4 5 2 0 3 0 0 1 4 7 41 1974 14 15 12 7 2 2 2 0 0 0 2 7 63 1975 6 7 5 7 8 2 0 0 0 2 5 13 55 1976 4 9 6 13 6 2 0 0 0 5 1 7 53 1977 8 2 6 8 11 3 0 2 0 9 4 5 58 1978 5 5 6 3 5 0 0 0 0 1 3 9 37 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 9 9 8 7 1 0 0 0 0 3 7 5 49 1981 7 11 10 10 5 5 0 0 0 5 2 6 61 1982 7 9 8 5 12 0 0 0 1 13 7 6 68 1983 *** *** *** 9 11 2 0 0 0 0 9 7 *** 1984 4 5 10 6 12 1 0 1 0 1 12 7 59 1985 8 4 7 4 0 0 0 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 3 7 13 3 3 0 1 0 0 9 0 8 47 1988 11 8 7 9 1 0 1 1 0 2 4 7 51 1989 7 7 15 0 1 0 0 0 *** 3 6 7 *** 1990 8 *** 6 3 3 0 3 0 0 3 1 4 *** 1991 5 9 12 5 0 0 0 0 0 9 0 11 51 1992 8 *** *** *** *** 4 0 0 0 0 *** *** *** 1993 *** *** *** *** *** *** *** 0 0 3 12 4 *** 1994 8 6 5 7 6 0 0 0 0 9 12 8 61 1995 2 5 6 9 9 2 0 0 0 1 2 4 40 1996 8 14 15 13 7 2 1 1 0 1 0 6 68 1997 4 4 10 8 3 1 0 0 0 0 7 8 45 1998 14 7 11 8 10 1 2 2 2 2 1 2 62 1999 7 5 6 5 3 0 2 0 0 3 3 6 40 2000 7 3 8 4 1 0 0 0 1 5 5 10 44 2001 3 4 7 5 5 1 2 1 3 2 5 9 47 2002 8 *** 10 14 2 0 1 0 0 3 9 12 *** 2003 6 9 11 8 3 0 0 0 0 6 7 10 60 MEAN 7 7 9 7 5 1 1 0 0 4 5 7 53 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 1972 17 3 10 8 20 5 0 2 0 5 4 5 79 1973 8 7 4 5 2 0 3 0 0 1 3 7 40 1974 13 14 12 7 2 2 2 0 0 0 2 7 61 1975 6 7 4 7 8 2 0 0 0 2 5 12 53 1976 4 7 6 13 6 2 0 0 0 5 1 7 51 1977 6 1 6 8 11 3 0 2 0 9 4 5 55 1978 4 5 6 3 5 0 0 0 0 1 3 9 36 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 9 7 8 7 1 0 0 0 0 3 7 5 47 1981 5 11 10 10 5 5 0 0 0 5 2 6 59 1982 7 6 7 3 9 0 0 0 1 12 5 6 56 1983 *** *** *** 9 11 2 0 0 0 0 9 7 *** 1984 4 5 9 5 12 1 0 1 0 1 12 7 57 1985 8 4 7 4 0 0 0 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 3 7 13 3 3 0 1 0 0 9 0 8 47 1988 11 8 7 9 1 0 1 1 0 2 4 7 51 1989 7 7 14 0 1 0 0 0 *** 3 6 7 *** 1990 8 *** 6 3 3 0 3 0 0 3 1 4 *** 1991 5 8 12 5 0 0 0 0 0 9 0 11 50 1992 8 *** *** *** *** 4 0 0 0 0 *** *** *** 1993 *** *** *** *** *** *** *** 0 0 3 12 4 *** 1994 7 6 5 7 5 0 0 0 0 9 12 8 59 1995 2 5 6 9 9 2 0 0 0 1 2 4 40 1996 7 14 15 13 6 2 1 1 0 1 0 6 66 1997 4 4 10 8 3 1 0 0 0 0 7 8 45 1998 14 7 11 6 9 1 1 2 1 2 1 1 56 1999 7 5 5 5 3 0 2 0 0 2 3 6 38 2000 7 3 8 3 1 0 0 0 1 5 4 10 42 2001 2 3 7 5 5 1 2 1 3 2 5 9 45 2002 8 *** 10 14 2 0 1 0 0 2 9 11 *** 2003 6 9 11 8 3 0 0 0 0 6 7 10 60 MEAN 7 7 8 7 5 1 1 0 0 4 5 7 52 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 1972 5 1 4 5 15 1 0 2 0 4 3 1 41 1973 1 1 0 1 0 0 0 0 0 0 0 0 3 1974 3 2 0 1 0 0 0 0 0 0 0 2 8 1975 1 2 2 2 3 0 0 0 0 0 2 2 14 1976 1 1 0 3 1 0 0 0 0 1 0 1 8 1977 1 0 1 1 2 0 0 0 0 2 3 1 11 1978 1 0 2 0 0 0 0 0 0 0 1 3 7 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 2 1 2 3 0 0 0 0 0 0 2 0 10 1981 0 2 2 2 2 0 0 0 0 1 0 2 11 1982 0 0 2 0 1 0 0 0 0 2 0 1 6 1983 *** *** *** 0 0 0 0 0 0 0 0 2 *** 1984 0 0 3 1 3 0 0 0 0 1 3 2 13 1985 1 2 1 1 0 0 0 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 1 5 1 0 0 0 0 0 5 0 2 14 1988 1 2 0 5 0 0 0 0 0 0 0 2 10 1989 0 1 2 0 1 0 0 0 *** 0 1 2 *** 1990 4 *** 0 2 1 0 1 0 0 2 1 1 *** 1991 0 0 2 1 0 0 0 0 0 0 0 3 6 1992 0 *** *** *** *** 1 0 0 0 0 *** *** *** 1993 *** *** *** *** *** *** *** 0 0 1 4 1 *** 1994 0 1 1 2 1 0 0 0 0 0 8 0 13 1995 0 3 4 2 2 1 0 0 0 0 0 0 12 1996 2 3 2 2 1 0 0 0 0 0 0 1 11 1997 1 1 4 3 0 0 0 0 0 0 0 2 11 1998 3 2 5 1 1 0 0 1 0 0 0 0 13 1999 2 1 2 2 0 0 1 0 0 1 0 1 10 2000 3 1 3 0 0 0 0 0 0 3 1 4 15 2001 1 0 0 1 2 0 0 0 0 0 1 3 8 2002 3 *** 2 6 1 0 0 0 0 2 1 4 *** 2003 3 5 5 3 1 0 0 0 0 2 1 2 22 MEAN 1 1 2 2 1 0 0 0 0 1 1 2 11 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 63 60 86 63 76 56 41 47 46 58 68 79 62 1973 75 79 70 68 65 44 47 42 48 50 67 68 60 1974 68 67 83 72 57 44 48 42 49 44 53 58 57 1975 73 65 76 60 72 48 37 37 40 60 62 59 57 1976 70 61 68 78 77 49 48 32 40 63 64 63 59 1977 54 59 72 70 63 46 40 42 47 67 81 68 59 1978 65 76 70 63 54 44 34 33 40 57 65 78 57 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 80 80 85 69 58 46 34 46 51 51 77 79 63 1981 83 79 73 68 65 61 48 44 45 71 69 78 65 1982 83 86 88 69 78 49 38 43 59 84 86 83 71 1983 *** *** *** 76 78 57 39 41 50 48 74 90 *** 1984 86 87 76 69 75 44 35 42 46 58 88 88 66 1985 88 85 86 73 59 45 42 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 85 86 85 69 60 44 48 50 50 73 71 82 67 1988 89 92 80 75 60 54 51 53 47 64 76 79 68 1989 *** *** 84 66 55 43 41 42 *** 70 82 85 *** 1990 87 *** 82 72 56 42 41 44 56 62 67 72 *** 1991 77 76 76 63 58 45 39 44 54 74 77 81 64 1992 75 *** *** *** *** 62 47 59 68 54 *** *** *** 1993 *** *** *** *** *** *** *** 46 57 59 87 81 *** 1994 81 80 78 67 69 53 46 38 45 63 77 81 65 1995 75 76 76 76 71 63 40 34 45 58 65 78 63 1996 84 86 82 75 67 55 51 39 45 60 66 82 66 1997 80 83 82 74 65 60 49 44 69 76 79 86 71 1998 86 86 91 74 76 54 52 51 66 70 66 70 70 1999 89 86 79 78 69 62 64 62 70 76 83 87 75 2000 87 85 87 76 61 61 57 57 68 83 78 87 74 2001 77 68 77 71 68 61 66 70 72 76 76 87 72 2002 71 *** 76 83 67 58 39 39 35 51 80 87 *** 2003 82 81 79 72 65 53 44 45 39 61 80 80 65 MEAN 78 78 80 71 66 52 45 45 52 63 74 78 65 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 75 66 72 45 52 31 22 27 23 28 46 84 48 1973 84 76 49 33 28 20 24 20 23 19 38 61 40 1974 85 81 79 43 28 20 28 24 26 24 40 79 46 1975 81 82 61 39 42 26 19 21 22 28 53 78 46 1976 79 78 71 54 43 28 28 21 25 40 50 63 48 1977 67 74 46 41 35 24 24 25 25 45 55 71 44 1978 83 65 46 29 29 24 23 24 23 31 49 60 41 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 83 82 71 41 28 22 21 24 23 32 56 58 45 1981 68 64 47 39 36 28 22 22 18 40 37 63 40 1982 76 85 74 39 48 22 19 23 36 60 69 82 53 1983 *** *** *** 47 45 28 20 22 25 22 46 74 *** 1984 67 78 51 33 45 25 18 21 20 32 65 89 45 1985 80 71 69 43 28 19 21 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 68 54 61 33 30 21 30 25 27 54 43 71 43 1988 86 82 48 48 30 26 32 29 25 36 45 60 46 1989 93 *** 73 28 28 20 23 24 *** 42 56 67 *** 1990 89 *** 55 32 27 16 23 24 22 35 36 55 *** 1991 83 80 60 36 31 20 22 23 24 40 44 81 45 1992 82 *** *** *** *** 31 28 38 54 24 *** *** *** 1993 *** *** *** *** *** *** *** 29 28 47 75 67 *** 1994 73 72 48 40 36 29 24 17 21 36 58 72 44 1995 57 60 41 47 47 35 19 19 21 29 32 54 38 1996 83 73 73 47 39 25 27 19 18 28 32 57 43 1997 68 74 69 48 36 28 25 23 29 48 61 79 49 1998 87 93 74 38 40 22 27 24 31 33 42 52 47 1999 80 70 64 50 44 30 41 36 43 51 73 78 55 2000 79 79 72 56 39 37 43 32 39 65 74 83 58 2001 72 72 58 50 50 40 41 43 47 56 67 79 56 2002 79 *** 50 62 37 31 25 15 15 26 63 85 *** 2003 73 79 65 42 30 18 17 21 15 31 67 76 45 MEAN 78 75 61 42 37 26 25 25 27 37 53 71 46 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 67 65 81 51 56 35 24 33 28 34 62 87 52 1973 82 78 50 38 32 20 28 23 28 28 46 61 43 1974 82 77 80 42 27 20 33 22 28 27 48 76 47 1975 83 82 63 34 46 29 20 23 25 36 56 76 48 1976 83 79 69 57 49 27 32 24 27 45 56 64 51 1977 59 71 50 46 44 30 26 29 26 51 61 72 47 1978 81 75 59 33 33 25 23 25 30 39 54 63 45 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 85 87 79 46 26 25 23 30 36 40 65 68 51 1981 75 75 59 47 43 35 25 25 24 51 49 73 48 1982 82 89 80 43 61 26 22 25 41 67 75 83 58 1983 *** *** *** 53 54 33 22 23 30 32 55 81 *** 1984 78 80 57 39 52 27 19 25 26 42 76 89 51 1985 85 73 74 47 31 22 23 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 80 65 71 42 40 25 31 30 34 63 59 77 51 1988 88 88 59 57 39 29 35 30 32 52 58 70 53 1989 90 *** 78 37 34 25 25 28 *** 48 69 79 *** 1990 89 *** 70 48 38 23 27 26 27 42 52 70 *** 1991 81 77 67 44 38 25 24 24 29 47 59 83 50 1992 79 *** *** *** *** 38 33 42 58 33 *** *** *** 1993 *** *** *** *** *** *** *** 30 46 54 76 73 *** 1994 79 75 57 47 43 32 31 21 30 46 69 78 51 1995 68 72 55 58 54 39 22 23 32 41 52 67 49 1996 84 80 76 55 49 32 31 21 27 39 49 73 51 1997 79 79 78 53 43 31 29 27 41 58 76 85 57 1998 86 95 79 47 54 30 35 34 44 48 63 68 57 1999 85 79 70 59 54 36 48 44 54 63 85 81 63 2000 82 81 78 62 46 42 45 38 48 76 79 89 64 2001 76 76 70 59 59 44 45 46 55 67 75 87 63 2002 81 *** 58 67 45 39 26 18 19 34 73 88 *** 2003 78 83 75 51 38 23 20 27 21 41 75 80 51 MEAN 80 78 68 49 44 30 29 28 34 46 63 76 52 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 1972 31 28 5 0 0 0 0 0 0 0 12 14 90 1973 30 20 9 0 0 0 0 0 0 0 14 25 98 1974 31 25 7 0 0 0 0 0 0 0 3 30 96 1975 28 22 12 1 0 0 0 0 0 0 12 22 97 1976 24 24 18 0 0 0 0 0 0 0 9 19 94 1977 31 22 1 0 0 0 0 0 0 0 3 16 73 1978 24 8 9 0 0 0 0 0 0 0 16 6 63 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 30 26 14 1 0 0 0 0 0 0 2 21 94 1981 24 14 5 2 0 0 0 0 0 0 9 10 64 1982 13 16 12 0 0 0 0 0 0 0 7 27 75 1983 *** *** *** 1 0 0 0 0 0 0 0 15 *** 1984 22 21 4 0 0 0 0 0 0 1 0 26 74 1985 17 19 12 0 0 0 0 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 19 12 6 1 0 0 0 0 0 0 3 18 59 1988 24 22 5 2 0 0 0 0 0 0 13 16 82 1989 29 28 7 1 0 0 0 0 *** 0 2 18 *** 1990 27 *** 14 0 0 0 0 0 0 0 2 19 *** 1991 29 23 5 0 0 0 0 0 0 0 8 21 86 1992 29 *** *** *** *** 0 0 0 0 0 *** *** *** 1993 *** *** *** *** *** *** *** 0 0 0 9 15 *** 1994 18 17 5 1 0 0 0 0 0 0 0 21 62 1995 22 14 9 0 0 0 0 0 0 0 9 26 80 1996 15 10 8 0 0 0 0 0 0 0 5 10 48 1997 20 24 12 3 0 0 0 0 0 0 3 13 75 1998 28 20 11 0 0 0 0 0 0 0 0 7 66 1999 21 18 11 0 0 0 0 0 0 0 3 21 74 2000 27 26 14 0 0 0 0 0 0 0 5 14 86 2001 24 25 5 0 0 0 0 0 0 0 5 9 68 2002 22 *** 10 0 0 0 0 0 0 0 5 17 *** 2003 21 18 5 0 0 0 0 0 0 0 6 16 66 MEAN 24 20 9 0 0 0 0 0 0 0 6 18 77 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 1972 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 4 1 0 0 0 0 0 5 1974 0 0 0 0 0 0 3 1 0 0 0 0 4 1975 0 0 0 0 0 0 3 1 0 0 0 0 4 1976 0 0 0 0 0 0 1 2 0 0 0 0 3 1977 0 0 0 0 0 0 3 1 0 0 0 0 4 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 0 0 0 0 0 0 1 0 0 0 0 0 1 1981 0 0 0 0 0 0 1 0 0 0 0 0 1 1982 0 0 0 0 0 0 0 0 0 0 0 0 0 1983 *** *** *** 0 0 0 1 7 0 0 0 0 *** 1984 0 0 0 0 0 1 4 2 0 0 0 0 7 1985 0 0 0 0 0 0 6 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 0 0 0 0 0 1 2 0 0 0 0 3 1988 0 0 0 0 0 0 6 3 0 0 0 0 9 1989 0 0 0 0 0 0 3 4 *** 0 0 0 *** 1990 0 *** 0 0 0 0 4 3 0 0 0 0 *** 1991 0 0 0 0 0 0 5 1 0 0 0 0 6 1992 0 *** *** *** *** 0 1 1 0 0 *** *** *** 1993 *** *** *** *** *** *** *** 0 0 0 0 0 *** 1994 0 0 0 0 0 0 6 1 0 0 0 0 7 1995 0 0 0 0 0 0 7 0 0 0 0 0 7 1996 0 0 0 0 0 1 4 0 0 0 0 0 5 1997 0 0 0 0 0 0 2 3 0 0 0 0 5 1998 0 0 0 0 0 0 5 1 0 0 0 0 6 1999 0 0 0 0 0 0 1 1 0 0 0 0 2 2000 0 0 0 0 0 0 4 1 0 0 0 0 5 2001 0 0 0 0 0 0 0 2 0 0 0 0 2 2002 0 *** 0 0 0 0 3 1 0 0 0 0 *** 2003 0 0 0 0 0 0 5 1 0 0 0 0 6 MEAN 0 0 0 0 0 0 3 1 0 0 0 0 4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 1972 31 29 0 0 0 0 0 0 0 0 0 4 64 1973 23 5 0 0 0 0 0 0 0 0 0 4 32 1974 28 20 1 0 0 0 0 0 0 0 0 17 66 1975 14 10 0 0 0 0 0 0 0 0 0 7 31 1976 4 7 5 0 0 0 0 0 0 0 0 4 20 1977 26 4 0 0 0 0 0 0 0 0 0 7 37 1978 6 0 0 0 0 0 0 0 0 0 0 0 6 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 17 10 2 0 0 0 0 0 0 0 0 2 31 1981 3 0 0 0 0 0 0 0 0 0 0 0 3 1982 4 14 0 0 0 0 0 0 0 0 0 23 41 1983 *** *** *** 0 0 0 0 0 0 0 0 9 *** 1984 3 5 0 0 0 0 0 0 0 0 0 20 28 1985 3 4 7 0 0 0 0 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 0 0 0 0 0 0 0 0 0 0 2 2 1988 6 9 0 0 0 0 0 0 0 0 0 3 18 1989 21 16 0 0 0 0 0 0 *** 0 0 0 *** 1990 15 *** 1 0 0 0 0 0 0 0 0 6 *** 1991 10 10 1 0 0 0 0 0 0 0 0 9 30 1992 20 *** *** *** *** 0 0 0 0 0 *** *** *** 1993 *** *** *** *** *** *** *** 0 0 0 1 1 *** 1994 1 4 0 0 0 0 0 0 0 0 0 7 12 1995 0 0 0 0 0 0 0 0 0 0 0 3 3 1996 19 4 1 0 0 0 0 0 0 0 0 0 24 1997 2 4 1 0 0 0 0 0 0 0 0 1 8 1998 15 9 3 0 0 0 0 0 0 0 0 0 27 1999 2 0 0 0 0 0 0 0 0 0 0 6 8 2000 7 8 0 0 0 0 0 0 0 0 0 1 16 2001 6 0 0 0 0 0 0 0 0 0 1 0 7 2002 15 *** 0 0 0 0 0 0 0 0 0 6 *** 2003 8 3 1 0 0 0 0 0 0 0 0 2 14 MEAN 11 7 1 0 0 0 0 0 0 0 0 5 24 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 1972 0 0 0 0 0 0 25 6 1 0 0 0 32 1973 0 0 0 0 0 15 29 29 10 0 0 0 83 1974 0 0 0 0 0 17 11 19 0 0 0 0 47 1975 0 0 0 0 0 13 31 24 9 0 0 0 77 1976 0 0 0 0 0 12 30 30 9 0 0 0 81 1977 0 0 0 0 0 18 26 26 2 0 0 0 72 1978 0 0 0 0 0 14 27 31 18 0 0 0 90 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 0 0 0 0 0 14 31 30 9 0 0 0 84 1981 0 0 0 0 0 7 28 31 6 0 0 0 72 1982 0 0 0 0 0 18 29 25 10 0 0 0 82 1983 *** *** *** 0 0 18 31 28 10 0 0 0 *** 1984 0 0 0 0 0 15 30 28 9 0 0 0 82 1985 0 0 0 0 2 19 30 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 0 0 0 0 19 25 26 12 0 0 0 82 1988 0 0 0 0 0 9 27 26 10 0 0 0 72 1989 0 0 0 0 2 21 31 20 *** 0 0 0 *** 1990 0 *** 0 0 1 22 26 27 21 0 0 0 *** 1991 0 0 0 0 0 13 25 23 10 0 0 0 71 1992 0 *** *** *** *** 4 27 17 0 0 *** *** *** 1993 *** *** *** *** *** *** *** 24 11 0 0 0 *** 1994 0 0 0 0 0 15 25 31 2 0 0 0 73 1995 0 0 0 0 0 2 29 31 2 0 0 0 64 1996 0 0 0 0 0 11 24 26 12 0 0 0 73 1997 0 0 0 0 0 13 29 31 2 0 0 0 75 1998 0 0 0 0 0 15 25 24 8 0 0 0 72 1999 0 0 0 0 5 22 22 30 10 0 0 0 89 2000 0 0 0 0 5 24 31 31 9 0 0 0 100 2001 0 0 0 0 2 17 26 29 8 0 0 0 82 2002 0 *** 0 0 0 13 29 31 18 0 0 0 *** 2003 0 0 0 0 0 16 31 29 11 0 0 0 87 MEAN 0 0 0 0 1 14 27 26 9 0 0 0 77 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 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 1 0 0 0 0 0 1 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 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 0 0 0 0 0 0 0 0 0 0 0 0 0 1983 *** *** *** 0 0 0 0 0 0 0 0 0 *** 1984 0 0 0 0 0 0 0 0 0 0 0 0 0 1985 0 0 0 0 0 0 0 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 *** 0 0 0 *** 1990 0 *** 0 0 0 0 0 0 0 0 0 0 *** 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 *** *** *** *** 0 0 0 0 0 *** *** *** 1993 *** *** *** *** *** *** *** 0 0 0 0 0 *** 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 0 0 0 0 0 0 0 0 0 0 0 2002 0 *** 0 0 0 0 0 0 0 0 0 0 *** 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 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 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 0 0 0 0 0 0 0 0 0 0 0 0 0 1983 *** *** *** 0 0 0 0 0 0 0 0 0 *** 1984 0 0 0 0 0 0 0 0 0 0 0 0 0 1985 0 0 0 0 0 0 0 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 *** 0 0 0 *** 1990 0 *** 0 0 0 0 0 0 0 0 0 0 *** 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 *** *** *** *** 0 0 0 0 0 *** *** *** 1993 *** *** *** *** *** *** *** 0 0 0 0 0 *** 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 0 0 0 0 0 0 0 0 0 0 0 2002 0 *** 0 0 0 0 0 0 0 0 0 0 *** 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 24 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 -------------- 1972 31 29 10 1 3 0 0 1 7 0 25 21 128 8 26 5 20 1973 30 27 23 8 0 0 0 0 0 0 17 29 134 11 5 4 20 1974 31 27 13 4 1 0 0 0 0 8 15 31 130 10 13 5 2 1975 31 28 28 6 0 0 0 0 0 12 26 29 160 10 16 4 13 1976 30 28 28 5 0 0 0 0 0 1 26 29 147 10 31 4 21 1977 31 28 12 2 0 0 0 0 0 8 19 28 128 10 23 4 17 1978 30 26 22 8 1 0 0 0 0 0 24 20 131 11 3 5 4 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1980 31 29 25 4 0 0 0 0 0 9 19 30 147 10 18 4 27 1981 30 25 16 7 2 0 0 0 0 0 20 27 127 11 6 5 3 1982 19 18 22 3 0 0 0 0 0 0 21 31 114 11 3 4 11 1983 *** *** *** 6 0 0 0 0 0 5 9 28 *** 10 6 4 15 1984 29 27 15 7 2 0 0 0 0 5 17 30 132 10 20 5 3 1985 26 27 20 0 0 0 0 *** *** *** *** *** *** 1 1 3 30 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1987 29 25 21 13 0 0 0 0 0 2 19 26 135 10 11 4 28 1988 31 27 21 9 0 0 0 0 0 1 18 31 138 10 23 4 11 1989 30 28 21 3 1 0 0 0 *** 0 18 29 *** 11 1 5 2 1990 31 *** 24 13 0 0 0 0 0 0 17 29 *** 11 13 4 22 1991 31 27 21 4 0 0 0 0 0 0 21 26 130 11 7 4 14 1992 30 *** *** *** *** 0 0 0 0 3 *** *** *** 10 27 1 31 1993 *** *** *** *** *** *** *** 0 0 1 15 28 *** 10 8 12 30 1994 26 27 16 3 0 0 0 0 0 1 13 28 114 10 16 4 6 1995 31 26 22 7 1 0 0 0 0 2 20 31 140 10 25 5 9 1996 19 27 25 4 0 0 0 0 0 4 20 24 123 10 17 4 16 1997 31 28 29 9 0 0 0 0 0 1 14 30 142 10 25 4 14 1998 31 27 21 1 0 0 0 0 0 0 14 18 112 11 1 4 25 1999 31 26 28 8 0 0 0 0 0 0 24 26 143 11 2 4 19 2000 29 28 27 1 0 0 0 0 0 0 21 25 131 11 4 4 2 2001 31 27 22 2 0 0 0 0 0 3 18 22 125 10 21 4 15 2002 28 *** 18 5 0 0 0 0 0 0 15 26 *** 11 5 4 14 2003 30 27 24 3 0 0 0 0 0 0 15 23 122 11 4 4 30 MEAN 29 27 21 5 0 0 0 0 0 2 19 27 130 8 26 5 20 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 -8.9 -6.9 3.0 10.8 12.4 20.6 26.2 21.7 19.6 14.5 5.2 -2.4 9.6 1973 -10.1 -2.2 4.5 10.0 15.7 23.4 25.9 25.4 19.9 15.0 4.9 -0.6 11.0 1974 -7.5 -7.9 3.9 9.5 17.1 23.2 23.4 23.3 18.6 12.5 7.4 -6.6 9.7 1975 -5.5 -4.6 3.2 11.6 15.1 22.6 27.3 24.9 20.1 11.5 3.8 -2.4 10.6 1976 -1.7 -2.9 0.3 8.6 14.1 22.1 26.1 25.7 20.2 12.2 5.6 1.2 11.0 1977 -9.2 -3.3 7.6 10.9 15.8 22.6 25.5 24.1 20.3 11.1 5.7 -0.7 10.9 1978 -2.6 2.2 5.5 10.8 15.6 20.9 24.9 24.4 20.8 13.9 2.7 3.9 11.9 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 -6.4 -4.8 1.5 11.3 17.1 22.8 27.0 25.5 18.4 12.1 6.7 0.7 11.0 1981 -2.5 1.0 6.0 10.2 14.4 20.3 25.9 26.1 19.4 12.0 6.7 3.5 11.9 1982 -0.7 -5.9 1.5 13.5 16.4 22.8 25.8 24.9 20.0 11.1 3.1 -7.9 10.4 1983 ****** ****** ****** 9.3 16.0 22.8 26.7 27.1 20.4 13.1 8.1 0.0 ****** 1984 -0.5 -1.0 6.3 11.1 12.5 23.4 26.5 25.9 20.7 11.9 5.3 -5.7 11.4 1985 -1.2 -0.4 1.2 10.4 17.4 23.8 27.0 ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 0.7 3.4 4.1 10.9 18.3 24.0 25.2 24.6 20.3 10.1 6.8 0.4 12.4 1988 -2.9 -2.2 5.1 10.5 17.4 22.3 25.6 24.8 20.2 13.7 6.2 1.5 11.9 1989 -6.9 -9.0 3.4 13.0 17.1 23.8 27.6 26.7 ****** 14.5 6.8 1.8 ****** 1990 -5.6 ****** 3.2 9.7 16.8 23.5 26.3 26.4 22.2 13.6 8.3 0.7 ****** 1991 -2.8 -2.7 4.0 11.9 14.6 22.1 26.3 25.2 20.1 13.1 7.3 -1.7 11.4 1992 -7.8 ****** ****** ****** ****** 20.0 26.1 22.9 17.8 12.9 ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** 24.3 20.4 12.1 3.7 2.0 ****** 1994 0.4 -0.5 5.6 12.4 15.7 22.2 26.2 26.7 18.7 12.1 6.8 -2.0 12.0 1995 1.4 1.7 5.9 10.0 15.0 20.1 26.8 26.4 18.7 13.1 6.7 -1.2 12.0 1996 -2.3 1.1 2.1 9.4 17.0 22.3 24.8 24.7 20.5 13.1 6.1 3.0 11.8 1997 -0.0 -1.8 1.8 9.4 16.0 22.6 26.6 27.0 19.1 13.9 5.9 0.8 11.8 1998 -6.2 -2.8 3.0 11.9 16.0 24.1 25.7 25.5 20.7 13.2 8.3 5.9 12.1 1999 -1.0 2.3 4.8 11.2 18.6 24.0 25.3 25.9 19.9 14.4 4.2 0.4 12.5 2000 -2.6 -4.8 4.4 13.3 18.7 23.7 26.5 25.6 20.7 11.2 4.7 -0.5 11.7 2001 -2.0 -0.2 6.2 13.0 17.5 23.7 25.9 25.6 20.4 13.7 6.1 3.0 12.7 2002 -4.0 ****** 7.1 9.4 16.4 22.6 26.4 26.3 22.2 16.1 6.0 -1.4 ****** 2003 -0.9 -1.2 3.2 11.9 15.5 22.6 27.9 26.4 19.8 14.8 5.8 0.4 12.2 MEAN -3.6 -2.1 4.0 10.9 16.1 22.6 26.1 25.3 20.0 13.0 5.9 -0.1 11.5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 -14.2 -13.5 -0.5 0.4 4.4 5.5 5.7 4.9 1.6 -0.6 -3.0 -5.0 -1.2 1973 -13.1 -5.7 -4.4 -3.3 0.7 2.0 7.1 4.3 1.6 -3.2 -6.1 -7.5 -2.3 1974 -11.1 -11.9 0.6 -1.6 0.6 1.8 6.3 2.5 1.3 -5.1 -4.1 -11.7 -2.7 1975 -8.6 -8.4 -3.4 -2.3 4.4 4.4 4.5 3.5 -0.1 -2.6 -4.5 -7.3 -1.7 1976 -5.4 -7.2 -5.0 1.0 4.4 4.5 8.9 4.1 1.3 0.8 -3.0 -5.4 -0.1 1977 -13.0 -9.0 -1.6 0.1 3.1 4.1 5.4 5.2 2.2 0.9 -0.6 -5.9 -0.8 1978 -6.6 -2.5 -2.7 -3.1 0.1 1.9 3.8 4.0 2.2 0.5 -5.6 -2.0 -0.8 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 -8.9 -7.5 -2.0 0.6 0.9 3.5 5.4 7.2 1.9 -1.7 0.2 -5.0 -0.5 1981 -6.4 -3.5 -2.1 -0.7 2.1 5.2 6.3 6.1 -0.9 1.8 -3.6 -1.4 0.2 1982 -3.8 -8.1 -1.7 2.4 8.5 4.0 4.0 5.3 6.9 5.4 -0.8 -10.8 0.9 1983 ****** ****** ****** 0.6 7.1 6.8 4.9 6.2 3.1 -3.6 -0.6 -2.9 ****** 1984 -4.3 -4.0 -1.5 -1.6 3.2 4.4 3.6 5.6 1.7 -1.1 1.1 -7.3 -0.0 1985 -3.7 -4.5 -3.0 0.4 2.2 2.9 6.3 ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 -3.2 -2.8 -0.9 -1.4 4.2 3.9 8.2 7.0 4.0 2.1 -1.6 -3.5 1.3 1988 -4.8 -4.1 -2.6 2.0 3.6 5.5 9.9 8.1 3.1 2.5 -2.0 -4.2 1.4 1989 ****** ****** -0.3 -0.7 1.6 3.6 7.4 7.3 ****** 4.3 1.1 -2.2 ****** 1990 -7.2 ****** -2.5 -1.9 1.8 1.7 6.7 7.2 4.5 1.5 -1.7 -5.8 ****** 1991 -5.7 -6.1 -2.1 -0.0 1.0 2.6 5.6 5.7 3.1 2.9 -0.6 -4.5 0.2 1992 -10.9 ****** ****** ****** ****** 5.8 9.0 9.7 9.1 -2.6 ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** 7.2 6.7 2.3 0.1 -2.5 ****** 1994 -3.1 -4.6 -2.3 1.4 4.1 6.4 7.9 4.0 0.6 0.5 0.8 -5.7 0.8 1995 -4.6 -3.6 -3.2 1.6 5.9 6.9 5.0 4.4 0.7 -0.3 -4.3 -7.2 0.1 1996 -5.2 -2.3 -1.9 0.7 5.8 5.6 8.2 3.0 1.0 -0.4 -4.8 -2.2 0.6 1997 -4.1 -5.2 -2.2 0.3 4.1 6.8 8.5 7.7 6.1 5.4 1.0 -1.9 2.2 1998 -8.2 -4.2 -0.4 1.3 6.1 6.3 9.0 8.1 7.8 1.8 -0.6 -1.3 2.1 1999 -3.4 -1.4 -0.8 3.5 8.8 9.3 13.2 12.9 10.0 7.0 0.9 -2.6 4.8 2000 -5.4 -7.5 0.6 6.4 6.6 10.8 14.0 10.9 9.4 6.6 0.9 -2.7 4.2 2001 -6.0 -4.8 0.4 5.0 8.9 11.6 14.2 14.6 11.2 7.2 1.3 0.5 5.4 2002 -7.6 ****** -0.9 3.6 5.0 8.1 6.0 2.4 -1.1 -0.2 0.8 -3.4 ****** 2003 -4.6 -4.2 -1.4 1.8 1.8 2.5 5.4 6.6 -2.2 1.1 1.1 -2.8 0.4 MEAN -6.8 -5.7 -1.8 0.6 4.0 5.1 7.3 6.4 3.5 1.1 -1.4 -4.4 0.7 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 1.88 1.98 4.72 5.07 6.54 7.14 7.23 6.88 5.43 4.67 3.97 3.44 4.91 1973 2.00 3.32 3.61 3.90 5.16 5.58 7.90 6.50 5.43 3.94 3.32 2.96 4.47 1974 2.33 2.35 5.28 4.36 5.07 5.47 7.55 6.03 5.28 3.39 3.67 2.34 4.43 1975 2.73 3.01 3.86 4.44 6.58 6.53 6.62 6.20 4.87 4.04 3.55 3.11 4.63 1976 3.44 3.05 3.64 5.19 6.61 6.67 9.05 6.54 5.33 5.18 4.02 3.44 5.18 1977 2.08 2.95 4.34 4.92 6.09 6.40 7.05 6.97 5.63 5.28 4.65 3.31 4.97 1978 3.35 4.06 3.99 3.89 4.84 5.49 6.28 6.41 5.65 4.98 3.25 4.21 4.70 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 2.65 2.97 4.30 5.14 5.17 6.11 6.98 7.93 5.57 4.38 4.98 3.36 4.96 1981 3.10 3.80 4.16 4.69 5.63 7.01 7.42 7.45 4.53 5.47 3.76 4.38 5.12 1982 3.74 2.81 4.33 5.80 8.66 6.35 6.34 6.97 7.87 7.10 4.59 2.31 5.57 1983 ****** ****** ****** 5.10 7.92 7.94 6.84 7.46 6.05 3.67 4.61 3.96 ****** 1984 3.57 3.65 4.34 4.45 6.11 6.56 6.13 7.14 5.45 4.40 5.20 2.98 5.00 1985 3.82 3.55 4.06 4.92 5.62 5.85 7.34 ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 3.87 3.94 4.53 4.47 6.50 6.39 8.56 7.80 6.48 5.69 4.40 3.81 5.54 1988 3.49 3.63 4.04 5.94 6.19 7.00 9.54 8.49 5.97 5.85 4.41 3.63 5.68 1989 ****** ****** 4.71 4.62 5.43 6.22 8.11 7.94 ****** 6.52 5.29 4.17 ****** 1990 2.98 ****** 4.05 4.19 5.49 5.43 7.61 7.86 6.55 5.34 4.28 3.32 ****** 1991 3.25 3.25 4.16 4.81 5.14 5.74 7.04 7.11 5.93 5.90 4.60 3.68 5.05 1992 2.33 ****** ****** ****** ****** 7.26 9.10 9.82 9.87 3.98 ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** 7.93 7.64 5.88 5.06 4.03 ****** 1994 3.94 3.50 4.09 5.42 6.46 7.50 8.39 6.31 5.05 5.00 5.20 3.26 5.34 1995 3.48 3.75 3.97 5.52 7.42 7.78 6.78 6.52 5.07 4.66 3.70 2.85 5.13 1996 3.42 4.11 4.24 5.07 7.24 7.13 8.40 5.92 5.10 4.66 3.37 4.14 5.23 1997 3.74 3.46 4.20 4.98 6.42 7.75 8.72 8.12 7.30 7.13 5.25 4.28 5.95 1998 2.85 3.76 4.76 5.34 7.46 7.45 9.25 8.48 8.33 5.56 4.71 4.47 6.04 1999 3.83 4.47 4.83 6.33 9.15 9.32 12.00 11.78 9.77 7.97 5.29 4.17 7.41 2000 3.44 3.07 5.29 7.71 7.90 10.19 12.84 10.36 9.37 7.77 5.33 4.09 7.28 2001 3.18 3.53 5.05 6.95 8.98 10.85 12.72 13.22 10.58 8.21 5.57 5.11 7.83 2002 3.09 ****** 4.62 6.30 6.86 8.49 7.57 5.72 4.41 4.74 5.32 3.91 ****** 2003 3.48 3.67 4.42 5.57 5.62 5.73 7.08 7.78 4.05 5.28 5.34 4.14 5.18 MEAN 3.15 3.40 4.36 5.18 6.51 7.01 8.15 7.71 6.38 5.40 4.52 3.67 5.45 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 2.41 2.55 6.08 6.57 8.45 9.28 9.43 8.96 7.07 6.07 5.13 4.42 6.37 1973 2.56 4.27 4.66 5.05 6.70 7.29 10.29 8.49 7.07 5.13 4.30 3.82 5.80 1974 2.98 3.02 6.80 5.65 6.59 7.14 9.82 7.85 6.88 4.40 4.75 3.00 5.74 1975 3.50 3.86 4.98 5.75 8.53 8.51 8.65 8.10 6.35 5.24 4.58 4.00 6.00 1976 4.43 3.92 4.69 6.71 8.56 8.68 11.77 8.54 6.95 6.72 5.20 4.44 6.72 1977 2.67 3.80 5.62 6.38 7.90 8.34 9.20 9.09 7.34 6.84 6.01 4.26 6.45 1978 4.31 5.23 5.16 5.04 6.29 7.16 8.20 8.37 7.36 6.47 4.19 5.44 6.10 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 3.40 3.82 5.55 6.66 6.73 7.97 9.12 10.34 7.25 5.68 6.43 4.33 6.44 1981 3.99 4.90 5.37 6.08 7.30 9.11 9.68 9.72 5.91 7.09 4.87 5.65 6.64 1982 4.81 3.61 5.58 7.51 11.20 8.27 8.28 9.10 10.22 9.17 5.91 2.97 7.22 1983 ****** ****** ****** 6.59 10.25 10.32 8.93 9.74 7.88 4.77 5.96 5.09 ****** 1984 4.60 4.70 5.61 5.77 7.91 8.55 8.01 9.31 7.11 5.72 6.70 3.83 6.48 1985 4.92 4.57 5.23 6.37 7.30 7.64 9.58 ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 4.98 5.09 5.84 5.79 8.44 8.33 11.14 10.15 8.43 7.35 5.69 4.90 7.18 1988 4.48 4.67 5.21 7.67 8.04 9.11 12.40 11.05 7.77 7.58 5.70 4.68 7.36 1989 ****** ****** 6.08 6.00 7.06 8.12 10.58 10.36 ****** 8.45 6.83 5.38 ****** 1990 3.83 ****** 5.22 5.43 7.13 7.09 9.93 10.25 8.53 6.93 5.55 4.28 ****** 1991 4.18 4.18 5.36 6.24 6.68 7.49 9.19 9.27 7.72 7.65 5.95 4.73 6.55 1992 2.98 ****** ****** ****** ****** 9.43 11.84 12.72 12.73 5.17 ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** 10.32 9.92 7.61 6.52 5.20 ****** 1994 5.08 4.51 5.29 7.02 8.37 9.76 10.93 8.25 6.58 6.49 6.72 4.20 6.93 1995 4.49 4.83 5.12 7.14 9.61 10.10 8.86 8.53 6.60 6.05 4.79 3.67 6.65 1996 4.40 5.29 5.47 6.56 9.38 9.28 10.94 7.74 6.65 6.05 4.36 5.34 6.79 1997 4.81 4.45 5.42 6.45 8.33 10.08 11.35 10.59 9.49 9.22 6.77 5.51 7.71 1998 3.66 4.83 6.14 6.92 9.65 9.70 12.02 11.04 10.81 7.21 6.10 5.78 7.82 1999 4.93 5.76 6.24 8.18 11.83 12.09 15.52 15.26 12.64 10.31 6.81 5.37 9.58 2000 4.42 3.95 6.81 9.97 10.24 13.21 16.59 13.44 12.14 10.03 6.87 5.26 9.41 2001 4.09 4.55 6.52 8.99 11.62 14.05 16.45 17.08 13.68 10.61 7.18 6.58 10.12 2002 3.98 ****** 5.97 8.14 8.90 11.03 9.86 7.48 5.76 6.16 6.86 5.02 ****** 2003 4.48 4.73 5.70 7.21 7.30 7.48 9.25 10.15 5.29 6.86 6.89 5.33 6.72 MEAN 4.05 4.38 5.62 6.71 8.44 9.13 10.61 10.04 8.29 7.00 5.84 4.73 7.07 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 0.91 1.24 1.73 6.87 6.59 16.11 25.95 18.34 17.50 11.76 4.29 0.84 9.35 1973 0.54 1.32 4.27 8.03 12.26 23.87 24.70 25.51 17.89 13.15 5.24 2.48 11.61 1974 0.67 0.76 1.92 7.09 14.17 22.99 19.96 22.04 15.81 11.29 6.28 1.20 10.35 1975 0.83 0.96 3.38 8.78 9.57 20.35 29.19 24.80 18.82 9.59 4.01 1.38 10.97 1976 1.20 1.31 2.11 5.01 8.18 19.25 23.94 26.25 18.57 8.63 4.52 2.67 10.14 1977 1.21 1.55 5.41 7.26 10.74 20.60 24.70 22.72 18.07 7.73 3.62 1.97 10.47 1978 1.04 2.26 4.48 8.67 12.70 19.04 24.72 23.45 18.93 10.69 3.62 2.89 11.04 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 0.66 0.71 1.82 7.56 13.98 21.08 28.17 24.14 16.01 9.75 3.82 2.57 10.86 1981 1.42 1.96 4.58 7.40 10.28 15.97 25.58 25.62 18.57 7.69 5.78 2.55 10.62 1982 1.25 0.57 1.61 8.75 8.21 20.91 26.48 23.86 14.57 4.53 2.03 0.58 9.45 1983 ****** ****** ****** 5.66 8.56 18.69 27.79 27.81 17.55 11.32 5.44 1.37 ****** 1984 1.59 1.32 4.48 8.04 7.19 21.27 27.58 25.60 19.02 9.52 2.53 0.48 10.72 1985 1.09 1.82 2.30 6.92 13.56 23.37 27.42 ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 1.79 3.20 2.67 8.17 13.60 22.61 22.17 22.09 16.87 5.98 4.97 1.72 10.49 1988 0.68 0.81 4.06 5.66 12.81 19.08 21.80 21.65 17.44 9.22 4.81 2.79 10.07 1989 ****** ****** 2.76 9.87 13.60 23.13 27.67 25.84 ****** 9.33 3.50 1.86 ****** 1990 0.52 ****** 2.93 7.62 13.02 23.33 25.40 25.66 20.14 9.68 6.42 3.24 ****** 1991 0.98 1.14 3.24 8.44 10.78 20.47 26.25 24.23 17.63 8.20 5.05 1.03 10.62 1992 0.73 ****** ****** ****** ****** 15.07 23.21 16.40 9.04 10.98 ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** 21.40 15.82 7.44 1.93 2.19 ****** 1994 1.53 1.64 4.32 8.21 10.52 18.47 24.27 28.32 16.42 8.33 3.53 1.45 10.58 1995 2.61 2.42 4.72 5.56 8.16 14.55 27.88 27.65 16.33 9.95 6.08 2.28 10.68 1996 1.02 1.59 1.98 5.85 11.06 18.73 21.32 25.04 19.13 10.14 5.70 2.55 10.34 1997 1.74 1.41 1.90 6.48 10.87 18.70 25.12 26.45 14.28 7.87 2.89 1.18 9.91 1998 0.51 0.40 1.90 7.90 9.63 21.78 22.44 23.15 15.18 9.31 5.68 4.16 10.17 1999 1.00 1.96 3.07 5.90 11.19 19.29 18.35 19.51 12.32 7.38 1.89 1.43 8.61 2000 1.07 0.91 2.18 6.14 12.74 17.48 19.25 21.02 13.98 4.06 2.08 0.82 8.48 2001 1.48 1.74 3.61 6.71 9.46 16.74 18.38 17.98 11.90 6.25 2.97 1.31 8.21 2002 1.05 ****** 5.03 4.26 11.11 18.08 26.13 29.11 23.35 13.87 3.05 0.78 ****** 2003 1.57 1.11 2.37 7.52 11.36 21.91 30.22 26.04 19.68 11.41 2.90 1.39 11.46 MEAN 1.14 1.42 3.14 7.15 10.92 19.76 24.69 23.85 16.81 9.14 4.09 1.83 10.33 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 69 64 80 53 61 41 29 36 32 40 59 83 54 1973 80 78 56 46 42 28 33 28 33 32 50 63 47 1974 78 75 81 52 37 28 36 29 34 32 47 71 50 1975 79 76 67 45 53 34 25 27 29 41 57 71 50 1976 77 73 70 63 56 35 36 26 31 49 56 64 53 1977 64 68 56 52 47 33 30 32 32 54 66 70 50 1978 76 72 59 42 39 31 27 28 31 42 56 67 48 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 83 83 79 52 38 31 26 33 37 41 66 68 53 1981 75 73 59 51 48 41 32 30 29 54 52 71 51 1982 80 86 81 50 62 32 26 30 45 70 77 82 60 1983 *** *** *** 59 59 39 27 29 35 34 58 82 *** 1984 77 81 62 47 57 32 24 30 31 44 76 89 54 1985 84 76 76 54 39 28 29 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 77 68 72 48 43 30 37 35 37 63 58 77 54 1988 88 87 62 60 43 36 39 37 35 51 60 70 56 1989 *** *** 74 44 39 29 30 31 *** 53 69 77 *** 1990 88 *** 69 51 41 27 31 32 35 46 52 66 *** 1991 80 78 68 47 42 30 28 30 35 54 60 82 53 1992 79 *** *** *** *** 43 36 46 60 37 *** *** *** 1993 *** *** *** *** *** *** *** 35 44 53 79 74 *** 1994 78 76 61 51 49 38 34 25 32 48 68 77 53 1995 66 69 57 60 57 46 27 25 33 43 50 66 50 1996 83 80 77 59 52 37 37 26 30 43 49 71 54 1997 75 79 76 58 48 39 34 31 46 60 72 83 58 1998 86 91 81 53 57 35 38 36 47 51 57 63 58 1999 85 78 71 62 56 43 51 47 56 64 80 82 65 2000 82 82 79 65 49 47 48 42 51 75 77 86 65 2001 75 72 68 60 59 49 51 53 58 66 73 84 64 2002 77 *** 62 71 50 43 30 24 23 37 72 87 *** 2003 78 81 73 55 44 31 27 31 25 44 74 79 54 MEAN 78 77 69 54 49 36 33 33 37 49 63 75 54 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 81 73 90 68 78 57 41 48 46 59 72 91 67 1973 90 86 75 70 66 44 47 42 48 50 69 76 64 1974 86 84 89 74 57 44 49 42 49 44 59 84 63 1975 89 88 81 63 74 49 38 37 41 62 66 81 64 1976 86 84 80 80 77 50 50 34 42 65 71 73 66 1977 78 81 74 72 64 48 41 43 47 68 81 81 65 1978 86 81 72 63 56 44 35 34 41 57 67 78 60 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 88 89 87 70 59 46 35 46 52 52 79 79 65 1981 85 82 74 70 66 61 48 44 45 71 70 80 66 1982 86 91 89 69 78 49 38 43 60 86 87 87 72 1983 *** *** *** 77 78 57 39 41 50 48 75 90 *** 1984 88 89 80 70 75 44 35 42 46 59 89 92 67 1985 92 86 88 73 59 45 42 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 89 88 86 70 61 44 49 50 52 76 72 85 69 1988 94 94 81 77 60 54 51 53 48 65 78 81 70 1989 *** *** 86 66 55 43 41 42 *** 70 83 87 *** 1990 93 *** 84 72 57 42 42 45 56 63 67 76 *** 1991 84 82 79 64 58 45 40 44 54 75 77 87 66 1992 83 *** *** *** *** 62 48 59 72 54 *** *** *** 1993 *** *** *** *** *** *** *** 46 57 63 89 83 *** 1994 85 85 79 69 70 53 46 38 45 63 80 83 66 1995 76 79 77 78 71 63 41 34 47 59 67 79 64 1996 89 88 88 79 69 56 52 39 45 60 66 83 68 1997 86 87 86 76 66 60 49 44 69 78 83 90 73 1998 91 98 92 75 78 54 52 51 67 71 69 76 73 1999 91 90 85 79 70 62 65 62 71 76 88 90 77 2000 89 87 89 77 64 61 59 57 68 84 83 93 76 2001 81 81 79 74 69 62 67 71 72 78 80 91 75 2002 84 *** 80 85 67 61 40 39 36 53 83 91 *** 2003 86 87 82 74 66 53 44 46 39 63 83 83 67 MEAN 87 86 83 73 67 52 46 45 52 65 76 84 68 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1972 56 53 68 39 49 29 21 26 22 26 45 73 42 1973 68 70 41 30 26 18 23 19 22 19 34 50 35 1974 67 63 73 37 23 18 26 21 23 21 36 55 39 1975 68 62 55 32 38 24 18 20 20 26 49 57 39 1976 67 58 58 50 40 24 27 19 23 37 43 54 42 1977 50 52 42 37 34 23 22 23 23 43 54 57 38 1978 63 63 44 27 27 21 20 23 22 30 46 56 37 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 77 76 69 38 25 22 21 24 22 30 54 58 43 1981 66 64 47 38 35 26 22 22 17 39 37 62 40 1982 75 81 72 39 48 22 19 22 35 58 68 77 51 1983 *** *** *** 45 44 28 19 21 25 22 45 73 *** 1984 65 73 48 30 44 24 18 21 20 31 65 85 44 1985 76 67 67 42 28 19 21 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 64 52 60 32 29 20 28 25 26 52 43 67 42 1988 81 80 47 46 30 25 30 27 24 36 41 58 44 1989 *** *** 63 28 27 19 22 23 *** 41 56 65 *** 1990 84 *** 55 32 27 16 23 24 22 35 36 52 *** 1991 76 73 58 35 31 20 21 23 24 40 43 76 43 1992 73 *** *** *** *** 29 27 36 49 24 *** *** *** 1993 *** *** *** *** *** *** *** 28 28 43 71 64 *** 1994 70 64 47 39 36 28 24 17 21 36 57 71 43 1995 55 59 40 47 46 35 19 19 21 29 32 54 38 1996 77 72 67 45 38 25 27 18 18 28 32 57 42 1997 63 71 68 44 35 27 25 22 29 47 60 75 47 1998 80 82 69 36 40 22 26 24 31 33 41 51 45 1999 78 67 59 49 43 29 40 36 42 51 72 73 53 2000 75 76 69 55 37 35 39 31 38 65 71 79 56 2001 68 63 56 49 49 39 40 42 47 55 65 78 54 2002 68 *** 48 61 36 31 23 15 15 25 61 82 *** 2003 69 75 63 41 29 18 17 21 14 30 65 75 43 MEAN 70 67 58 40 36 25 24 24 26 36 51 66 44 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 1972 7 2 9 7 15 3 0 2 0 4 4 3 56 1973 4 4 3 2 1 0 0 0 0 0 0 0 14 1974 5 5 6 2 1 1 0 0 0 0 0 4 24 1975 3 4 2 6 6 1 0 0 0 2 2 4 30 1976 1 2 1 9 2 2 0 0 0 3 0 3 23 1977 3 0 2 4 5 2 0 1 0 4 4 3 28 1978 3 3 2 0 0 0 0 0 0 0 1 4 13 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 4 1 6 4 1 0 0 0 0 0 4 2 22 1981 1 4 5 5 4 1 0 0 0 3 1 4 28 1982 1 5 4 0 3 0 0 0 0 4 2 3 22 1983 *** *** *** 4 2 0 0 0 0 0 5 3 *** 1984 2 2 4 3 7 1 0 0 0 1 9 4 33 1985 3 3 4 4 0 0 0 *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 1 2 7 1 1 0 0 0 0 5 0 4 21 1988 4 3 3 6 0 0 0 1 0 1 0 4 22 1989 4 5 6 0 1 0 0 0 *** 2 1 3 *** 1990 4 *** 3 2 3 0 2 0 0 2 1 1 *** 1991 3 3 7 2 0 0 0 0 0 3 0 8 26 1992 3 *** *** *** *** 1 0 0 0 0 *** *** *** 1993 *** *** *** *** *** *** *** 0 0 1 7 3 *** 1994 5 2 3 3 2 0 0 0 0 1 11 2 29 1995 0 3 5 4 6 2 0 0 0 0 1 0 21 1996 3 9 6 3 2 0 0 1 0 0 0 3 27 1997 2 3 6 6 1 0 0 0 0 0 2 4 24 1998 8 4 7 3 3 0 0 1 0 1 0 1 28 1999 5 4 3 3 0 0 1 0 0 2 3 3 24 2000 5 2 6 1 0 0 0 0 0 3 1 8 26 2001 2 2 4 3 3 0 1 1 0 0 3 4 23 2002 6 *** 4 9 1 0 0 0 0 2 4 6 *** 2003 4 7 7 5 1 0 0 0 0 3 3 3 33 MEAN 3 3 5 4 3 0 0 0 0 2 2 3 25 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. HIGHEST AND LOWEST LIMITS FOR 32 YEARS DURING 1972-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 5.6 5.0 10.2 14.0 18.6 23.6 29.5 26.2 20.0 14.5 10.2 6.0 1 YEAR - DAY 1994- 5 1984-13 1974-21 1972-23 1985-30 1973-20 1978-17 1976- 1 1976-12 1975- 1 1973- 1 1978- 2 LOW. DRY 03 -25.4 -28.5 -18.5 -9.4 0.0 8.0 12.3 7.0 2.8 -3.0 -11.2 -24.5 2 YEAR - DAY 1992-29 1974- 5 1976- 3 1981- 2 1984- 2 1978- 3 1974-20 1972-29 1981-26 1984-21 1988-15 1974-24 HIG. WET 03 4.8 4.0 9.0 11.4 13.6 17.0 19.8 19.2 15.6 9.6 7.4 4.8 3 YEAR - DAY 1994- 5 1999-20 1972-26 1982-27 1999-29 2000-30 1976-31 1992- 5 1999- 6 1994- 2 1994- 5 1978-11 LOW. WET 03 -25.6 -28.5 -19.0 -9.8 -2.4 3.0 7.0 2.0 -1.0 -5.2 -12.2 -25.5 4 YEAR - DAY 1992-29 1974- 5 1976- 3 1981- 2 1980-17 1973- 4 1978- 9 1972-29 1981-26 1974-19 2001-20 1974-24 HIG. DRY 09 12.4 15.2 18.2 24.4 30.4 36.0 38.2 36.0 33.0 27.4 19.6 18.0 5 YEAR - DAY 1987-31 1987-25 2001-31 1997-25 1999-30 1989-30 1991-21 1983-16 2002- 2 2002- 1 1991- 3 1998-10 LOW. DRY 09 -18.0 -19.4 -8.2 -0.5 7.0 16.0 19.4 18.5 16.0 3.0 -4.0 -13.2 6 YEAR - DAY 1977-25 1974- 4 1976- 2 1981- 2 1972- 4 1978- 2 1999-15 1977-30 2001-20 1984-20 1993-14 1982-12 HIG. WET 09 8.4 7.4 13.8 16.4 22.2 24.0 27.4 27.0 22.0 19.4 15.4 9.6 7 YEAR - DAY 2002- 1 1987- 1 1974-22 2000-20 1999-31 2001-26 2000-20 1992- 6 1992-13 1999- 1 2002- 1 1998- 1 LOW. WET 09 -19.5 -20.0 -9.5 -1.8 3.0 9.5 10.4 11.0 8.0 1.4 -5.0 -13.6 8 YEAR - DAY 1977-25 1974- 4 1976- 2 1981- 2 1972- 4 1978- 3 1994-10 1972-27 1981-22 1984-20 1993-14 1982-12 HIG. DRY 15 8.6 10.0 17.0 22.0 29.6 33.0 34.8 35.2 30.0 23.0 16.3 13.2 9 YEAR - DAY 1987-31 1987-25 2002-26 1982-21 1999-31 1989-30 1976-30 2002-10 2002- 8 1978- 7 1974- 3 1998-10 LOW. DRY 15 -18.3 -22.0 -12.0 -4.0 4.6 12.5 13.4 14.0 11.0 1.0 -6.8 -15.5 10 YEAR - DAY 1977-24 1974- 4 1976- 1 1981- 1 1981- 1 1978- 2 1999-15 1977-29 1981-23 1984-20 1993-14 1974-27 HIG. WET 15 5.4 6.6 12.2 16.0 21.4 27.0 24.0 25.0 22.0 15.0 14.0 7.0 11 YEAR - DAY 1994- 3 1999-26 1974-21 1999-28 1999-31 2001-24 2000-12 1992- 6 2000- 9 1999- 1 2001- 5 1976-16 LOW. WET 15 -19.5 -22.9 -13.0 -5.0 0.8 7.4 10.5 10.0 6.0 -1.0 -7.2 -16.0 12 YEAR - DAY 1977-24 1974- 4 1976- 1 1981- 1 1984- 1 1981- 6 1978- 8 1972-29 1981-23 1984-20 1993-14 1974-27 HIG. MIN. 5.5 4.5 9.0 12.5 15.0 22.0 24.0 25.5 18.5 11.5 8.5 6.0 13 YEAR - DAY 1994- 5 1984-13 1977-18 1982-27 1997-31 1984-26 1985-13 1983- 1 1998- 1 1996- 3 2002-12 1998-13 LOW. MIN. -34.0 -29.2 -19.0 -9.5 -3.0 3.0 5.0 -1.0 0.0 -4.0 -12.0 -25.2 14 YEAR - DAY 1972-25 1974- 5 1976- 3 1981- 2 1984- 2 1995- 9 1972-31 1972-26 1972- 2 1984-21 2001-20 1974-24 HIG. MAX. 15.0 16.5 22.0 27.0 33.0 37.0 41.0 38.0 34.5 28.5 22.0 20.0 15 YEAR - DAY 1987-31 1987- 3 2001-31 1985-18 1999-31 1989-30 1976-31 1983- 4 1984- 2 2002- 1 1972- 1 1998-10 LOW. MAX. -15.3 -14.8 -4.5 0.5 10.0 18.0 23.0 21.0 18.5 5.0 -2.5 -11.0 16 YEAR - DAY 1977-25 1974- 4 1976- 2 1997-11 1981- 1 1978- 2 1999-15 1992-30 2001-20 1976-31 1993-14 1984-31 HIG. PPTN 62.0 76.0 66.0 75.0 98.0 30.0 18.5 16.0 2.5 53.2 99.0 60.0 17 YEAR - DAY 1972- 7 1972-19 1972-31 1972-23 1972- 2 1972- 8 1999-15 1998- 2 1982-30 2003-29 1972- 4 1972-12 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 32 YEARS DURING 1972-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 18.7 21.3 20.4 17.6 18.8 19.7 18.8 19.0 22.0 23.0 20.6 21.3 18 YEAR - DAY 1978-16 1975-15 2002-12 1975-11 1981-26 1973- 4 1989- 2 2002-22 1972-15 1980- 9 1995-13 1974-24 DRY 15 - DRY 09 12.0 11.0 11.6 10.4 13.0 14.0 10.6 15.0 13.4 12.8 11.4 9.4 19 YEAR - DAY 1973-21 1998- 2 1997- 7 1990-13 1990-11 1977-17 1995-12 1977-29 1980-14 2003-13 1981- 5 1975-28 DRY 15 - DRY 03 17.0 18.4 18.4 15.6 16.5 18.0 18.0 18.6 19.8 19.4 17.2 16.2 20 YEAR - DAY 1998-24 2000-11 2000-16 1999- 7 1978- 4 1973-18 1973-13 2002-10 1980-28 1978- 7 1973- 9 1998-10 WET 09 - WET 03 18.8 21.5 16.6 13.4 13.8 10.8 15.4 13.4 22.0 17.4 17.1 22.0 21 YEAR - DAY 1978-16 1975-15 2000-16 1975-11 2000- 7 1999-22 2000-20 2000- 3 1992-20 1974-21 1973-11 1974-24 WET 15 - WET 09 12.0 9.2 9.0 8.0 6.6 6.0 8.0 6.3 8.4 8.4 9.0 8.6 22 YEAR - DAY 1973-21 2000- 8 1997- 7 1972-16 1999- 1 1999- 5 1987-11 1976-29 1992-19 2003-16 1993-15 1982-18 WET 15 - WET 03 15.9 18.0 16.2 12.0 14.0 11.6 11.2 12.4 16.8 12.6 12.1 15.8 23 YEAR - DAY 1975-26 2000-11 2000-16 2002- 6 1999- 1 2000-13 2000-28 2001- 1 1992-20 2001-21 1975- 8 1974-31 DAY BY DAY DRY 03 16.0 15.6 13.0 10.5 9.0 10.0 10.5 8.6 9.0 7.8 11.2 17.5 24 YEAR - DAY 1997-29 1998-18 1997- 8 1978- 7 1972- 1 1973-20 1978-17 2003- 1 1972-27 1992- 7 1995-25 1974-24 DAY BY DAY WET 03 16.0 15.6 12.4 9.4 7.0 7.4 7.8 7.6 9.4 7.4 10.6 17.7 25 YEAR - DAY 1975- 1 1998-18 1997- 8 1981- 2 1972- 1 2000-13 1975-31 1984-18 1987-22 1994- 3 1995-12 1974-24 DAY BY DAY DRY 09 11.0 12.4 13.0 13.8 11.0 9.0 9.8 10.5 11.2 11.0 12.4 12.0 26 YEAR - DAY 1972-11 1985- 6 1997- 8 1975-20 1999-20 1972- 2 1991-22 1977-30 1987-27 1998-10 1993-14 1982-13 DAY BY DAY WET 09 11.0 10.7 10.8 8.0 9.6 6.8 7.0 10.0 8.4 6.8 10.0 11.6 27 YEAR - DAY 1974-31 1974- 4 1999-17 1996- 3 1999-20 1999-23 1992-30 2000-28 1992-23 2003-17 1993-14 1982-13 DAY BY DAY DRY 15 12.6 16.2 10.8 12.5 12.5 14.5 10.1 10.0 10.0 9.0 13.0 11.2 28 YEAR - DAY 1997-28 1985- 6 1976- 1 1977-24 1973-10 1977-17 1974- 5 1977-29 1981-22 1978- 7 1993-14 1984-13 DAY BY DAY WET 15 12.4 11.2 10.9 7.8 6.2 9.2 8.0 7.6 5.6 7.0 11.2 11.0 29 YEAR - DAY 1997-28 1985- 6 1976- 1 1996- 3 2002-20 1983-20 1992-30 1992-19 1992-23 2000-14 1993-14 1984-13 DAY BY DAY MIN. 19.0 19.6 12.5 10.5 7.5 11.2 10.0 8.0 8.0 7.0 11.5 17.7 30 YEAR - DAY 1997-29 1998-18 1995- 2 1977-25 1981-27 1974-20 1984- 3 1982-18 1975-30 1983-24 1978- 3 1974-24 DAY BY DAY MAX. 10.5 12.0 12.8 12.0 12.0 7.5 8.2 9.0 10.0 10.0 12.5 10.0 31 YEAR - DAY 1985- 1 1987- 9 1997- 8 1985-18 1990-12 1972- 2 1991-22 1972- 1 1987-27 1998-10 1993-14 1999- 8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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.-12.7 -9.3 5.1 10.1 10.2 17.9 21.5 15.9 14.5 13.2 5.3 -2.4 7.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -20.8 -14.5 0.2 3.9 3.4 10.3 12.2 4.9 2.8 3.6 -2.6 -6.7 -0.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. -4.6 -4.1 10.1 16.4 17.0 25.4 30.8 26.9 26.2 22.8 13.2 1.8 15.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.2 10.4 9.9 12.5 13.6 15.1 18.6 22.0 23.4 19.2 15.8 8.5 15.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.26 1.72 4.87 4.66 6.39 6.87 7.02 6.32 4.68 4.21 3.20 2.73 4.49 MEAN OF MIXING RATIO AT 09 GMT. 2.52 2.25 4.83 5.10 6.76 7.46 7.49 7.19 6.07 5.26 4.43 4.22 5.30 MEAN OF MIXING RATIO AT 15 GMT. 1.85 1.99 4.45 5.45 6.45 7.09 7.17 7.14 5.54 4.54 4.29 3.38 4.95 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -34.0 -26.0 -7.0 0.0 0.0 4.0 5.0 -1.0 0.0 0.2 -7.0 -16.0 -34.0 DAY 25 1 2 6 15 3 31 26 2 23 21 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. -1.0 -0.5 15.0 22.0 25.0 29.5 33.0 31.0 30.0 28.0 22.0 5.0 33.0 DAY 15 14 16 30 31 18 11 15 6 23 1 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 62.0 76.0 66.0 75.0 98.0 30.0 0.0 10.0 0.0 34.0 99.0 60.0 99.0 DAY 7 19 31 23 2 8 ** 20 ** 7 4 12 MONTHLY TOTAL PRECIPITATION IN MM. 203.0 86.0 159.9 236.0 571.2 47.0 0.0 20.0 0.0 97.0 187.1 77.4 1684.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 26.6 50.7 1.2 21.5 NO. OF DAYS WITH PRECIPITATION. 17 3 10 8 20 5 0 2 0 5 4 5 79 NO. OF DAYS PRECIPITATION EQUAL 17 3 10 8 20 5 0 2 0 5 4 5 79 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 1 4 5 15 1 0 2 0 4 3 1 41 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 63 60 86 63 76 56 41 47 46 58 68 79 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 75 66 72 45 52 31 22 27 23 28 46 84 48 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 65 81 51 56 35 24 33 28 34 62 87 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 28 5 0 0 0 0 0 0 0 12 14 90 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 31 29 0 0 0 0 0 0 0 0 0 4 64 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 25 6 1 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 29 10 1 3 0 0 1 7 0 25 21 128 DATE OF START AND END FREEZING START = 26 AUG. END = 20 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -9.5 -2.1 4.5 9.6 14.6 21.9 24.6 24.1 19.1 14.2 4.4 -0.5 10.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -16.2 -8.0 -2.0 2.4 7.1 13.2 16.3 16.0 10.2 5.8 -3.3 -7.1 2.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. -2.8 3.8 11.1 16.8 22.2 30.4 32.9 32.3 28.0 22.7 12.1 6.2 18.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.4 11.8 13.1 14.4 15.1 17.2 16.6 16.3 17.8 16.9 15.4 13.3 15.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.35 2.54 3.20 4.15 5.73 5.66 7.63 6.49 4.90 3.80 2.89 2.30 4.22 MEAN OF MIXING RATIO AT 09 GMT. 2.93 4.16 3.94 3.75 4.90 5.79 8.17 6.56 5.89 3.80 3.65 3.70 4.77 MEAN OF MIXING RATIO AT 15 GMT. 1.71 3.26 3.69 3.80 4.84 5.29 7.91 6.45 5.49 4.23 3.42 2.90 4.42 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -25.0 -22.0 -10.5 -1.0 1.5 6.2 12.4 13.0 6.5 2.0 -11.5 -16.0 -25.0 DAY 29 6 9 10 6 9 4 19 28 26 9 15 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 4.0 13.2 18.5 24.0 28.0 35.9 36.7 36.5 31.5 27.6 19.2 13.0 36.7 DAY 23 28 21 26 29 22 29 4 1 7 2 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.0 17.0 7.5 24.4 8.5 0.0 4.0 0.0 0.0 1.0 4.8 4.2 24.4 DAY 1 8 31 16 10 ** 24 ** ** 4 23 13 MONTHLY TOTAL PRECIPITATION IN MM. 38.0 51.0 24.9 41.9 11.0 0.0 8.8 0.0 0.0 1.0 9.6 16.0 202.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 56.3 26.2 4.4 13.2 NO. OF DAYS WITH PRECIPITATION. 8 7 4 5 2 0 3 0 0 1 4 7 41 NO. OF DAYS PRECIPITATION EQUAL 8 7 4 5 2 0 3 0 0 1 3 7 40 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 0 1 0 0 0 0 0 0 0 0 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 79 70 68 65 44 47 42 48 50 67 68 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 84 76 49 33 28 20 24 20 23 19 38 61 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 82 78 50 38 32 20 28 23 28 28 46 61 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 30 20 9 0 0 0 0 0 0 0 14 25 98 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 1 0 0 0 0 0 5 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 23 5 0 0 0 0 0 0 0 0 0 4 32 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 15 29 29 10 0 0 0 83 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 23 8 0 0 0 0 0 0 17 29 134 DATE OF START AND END FREEZING START = 5 NOV. END = 20 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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 4.4 9.1 15.4 21.1 22.4 22.4 17.5 11.3 7.1 -6.2 9.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -11.5 -11.8 -0.1 2.8 6.7 12.3 15.5 14.7 9.5 2.3 -0.0 -12.8 2.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. -2.3 -2.3 8.9 15.5 24.2 30.0 29.2 30.1 25.5 20.3 14.1 0.5 16.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.2 9.5 9.0 12.7 17.5 17.7 13.7 15.4 16.0 18.0 14.1 13.3 13.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.70 1.74 4.42 4.57 5.22 5.80 7.50 5.85 4.86 2.77 2.67 1.37 4.04 MEAN OF MIXING RATIO AT 09 GMT. 2.94 2.89 6.07 4.49 5.37 5.60 7.72 6.66 5.74 3.89 4.19 3.14 4.89 MEAN OF MIXING RATIO AT 15 GMT. 2.34 2.42 5.34 4.03 4.61 5.01 7.43 5.56 5.24 3.49 4.15 2.50 4.34 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -24.0 -29.2 -12.2 -1.5 -0.5 7.0 9.5 10.0 4.5 -3.0 -7.5 -25.2 -29.2 DAY 30 5 7 12 2 20 21 23 27 20 28 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 2.2 3.8 18.5 23.5 29.3 34.5 35.0 34.5 29.8 23.0 21.0 11.0 35.0 DAY 8 14 20 19 22 22 1 16 9 2 3 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 15.2 20.5 7.5 16.5 8.5 5.0 4.0 0.0 0.0 0.0 1.2 20.5 20.5 DAY 24 26 11 4 4 11 15 ** ** ** 20 5 MONTHLY TOTAL PRECIPITATION IN MM. 70.0 76.9 54.0 40.8 10.5 8.7 7.8 0.0 0.0 0.0 2.2 56.3 327.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 61.4 18.3 2.4 17.9 NO. OF DAYS WITH PRECIPITATION. 14 15 12 7 2 2 2 0 0 0 2 7 63 NO. OF DAYS PRECIPITATION EQUAL 13 14 12 7 2 2 2 0 0 0 2 7 61 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 0 1 0 0 0 0 0 0 0 2 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 68 67 83 72 57 44 48 42 49 44 53 58 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 85 81 79 43 28 20 28 24 26 24 40 79 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 82 77 80 42 27 20 33 22 28 27 48 76 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 25 7 0 0 0 0 0 0 0 3 30 96 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 1 0 0 0 0 4 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 28 20 1 0 0 0 0 0 0 0 0 17 66 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 17 11 19 0 0 0 0 47 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 13 4 1 0 0 0 0 8 15 31 130 DATE OF START AND END FREEZING START = 13 OCT. END = 2 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -5.0 -4.6 3.0 10.4 14.1 20.9 25.8 24.0 19.5 10.6 3.7 -2.2 10.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.8 -10.6 -3.5 2.3 7.1 12.6 16.7 15.8 10.7 1.4 -3.1 -6.9 2.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.8 1.3 9.6 18.6 21.0 29.2 34.9 32.2 28.2 19.8 10.4 2.6 17.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.6 11.9 13.1 16.3 13.9 16.6 18.2 16.4 17.5 18.4 13.5 9.5 14.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.80 1.85 3.02 4.16 6.75 6.46 6.55 5.85 4.15 3.45 2.55 2.12 4.06 MEAN OF MIXING RATIO AT 09 GMT. 3.57 3.90 4.50 4.94 6.70 6.62 6.75 6.48 5.41 4.28 4.24 3.99 5.12 MEAN OF MIXING RATIO AT 15 GMT. 2.81 3.26 4.05 4.21 6.29 6.51 6.55 6.28 5.06 4.38 3.85 3.22 4.71 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.5 -23.5 -11.5 -4.0 2.5 8.3 9.5 12.5 6.0 -3.5 -9.5 -14.5 -23.5 DAY 31 14 9 4 2 13 21 26 24 29 30 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 5.2 6.5 18.2 23.5 29.8 36.5 37.2 36.0 32.0 23.0 18.0 8.0 37.2 DAY 5 26 26 14 30 30 6 2 7 1 1 27 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 22.4 23.6 23.0 24.0 6.0 0.0 0.0 0.0 7.2 16.0 12.0 24.0 DAY 27 21 13 24 6 5 ** ** ** 2 27 22 MONTHLY TOTAL PRECIPITATION IN MM. 32.2 61.2 42.8 67.5 82.2 8.0 0.0 0.0 0.0 12.4 37.3 53.3 396.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 34.3 39.7 0.0 26.0 NO. OF DAYS WITH PRECIPITATION. 6 7 5 7 8 2 0 0 0 2 5 13 55 NO. OF DAYS PRECIPITATION EQUAL 6 7 4 7 8 2 0 0 0 2 5 12 53 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 2 2 3 0 0 0 0 0 2 2 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 65 76 60 72 48 37 37 40 60 62 59 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 81 82 61 39 42 26 19 21 22 28 53 78 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 83 82 63 34 46 29 20 23 25 36 56 76 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 28 22 12 1 0 0 0 0 0 0 12 22 97 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 1 0 0 0 0 4 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 14 10 0 0 0 0 0 0 0 0 0 7 31 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 13 31 24 9 0 0 0 77 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 28 6 0 0 0 0 0 12 26 29 160 DATE OF START AND END FREEZING START = 16 OCT. END = 13 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -1.4 -2.9 0.4 8.7 13.2 20.3 24.8 24.4 19.0 11.7 5.2 1.5 10.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.6 -8.3 -5.6 2.4 6.0 11.8 15.9 15.6 10.1 3.4 -2.0 -4.0 3.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.7 2.5 6.4 14.9 20.5 28.9 33.8 33.2 27.9 20.0 12.3 7.0 17.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.3 10.8 12.0 12.5 14.5 17.1 17.9 17.6 17.8 16.6 14.3 11.0 14.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.32 1.84 2.60 4.97 6.72 6.55 8.10 5.29 4.10 4.22 2.91 2.53 4.35 MEAN OF MIXING RATIO AT 09 GMT. 4.19 3.83 4.49 5.64 6.64 7.20 9.63 7.37 6.27 5.92 4.78 4.22 5.85 MEAN OF MIXING RATIO AT 15 GMT. 3.81 3.48 3.84 4.96 6.47 6.25 9.41 6.96 5.62 5.40 4.37 3.57 5.34 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -16.0 -19.0 -1.5 2.5 7.5 11.8 9.0 2.0 -1.0 -7.5 -12.0 -19.0 DAY 1 17 3 21 8 10 22 26 29 31 30 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 9.0 19.0 24.0 26.5 34.5 41.0 36.0 33.5 26.0 19.5 13.5 41.0 DAY 20 8 30 28 31 25 31 1 4 19 5 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.0 10.0 6.4 15.0 20.0 7.0 0.0 0.0 0.0 11.0 2.0 12.0 25.0 DAY 21 10 13 24 16 6 ** ** ** 29 27 10 MONTHLY TOTAL PRECIPITATION IN MM. 32.4 31.1 18.6 98.3 36.0 12.0 0.0 0.0 0.0 27.0 2.0 41.0 298.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.5 49.0 0.0 23.5 NO. OF DAYS WITH PRECIPITATION. 4 9 6 13 6 2 0 0 0 5 1 7 53 NO. OF DAYS PRECIPITATION EQUAL 4 7 6 13 6 2 0 0 0 5 1 7 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 0 3 1 0 0 0 0 1 0 1 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 61 68 78 77 49 48 32 40 63 64 63 59 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 79 78 71 54 43 28 28 21 25 40 50 63 48 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 83 79 69 57 49 27 32 24 27 45 56 64 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 24 18 0 0 0 0 0 0 0 9 19 94 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 2 0 0 0 0 3 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 4 7 5 0 0 0 0 0 0 0 0 4 20 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 12 30 30 9 0 0 0 81 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. 30 28 28 5 0 0 0 0 0 1 26 29 147 DATE OF START AND END FREEZING START = 31 OCT. END = 21 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -8.6 -3.0 7.5 10.5 15.1 21.5 24.8 23.7 19.4 11.0 5.6 -0.4 10.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -13.3 -9.6 1.0 4.2 7.9 13.2 17.1 15.4 10.5 3.7 -0.8 -5.3 3.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. -3.8 3.7 14.1 16.8 22.4 29.9 32.4 32.0 28.3 18.2 12.1 4.4 17.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.5 13.3 13.1 12.6 14.5 16.7 15.3 16.6 17.8 14.5 12.9 9.7 13.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.51 1.82 3.99 4.89 6.17 6.19 6.77 6.18 4.85 4.33 3.87 2.50 4.42 MEAN OF MIXING RATIO AT 09 GMT. 2.32 4.04 4.68 4.94 6.04 6.31 7.28 7.56 6.52 6.10 5.16 4.07 5.42 MEAN OF MIXING RATIO AT 15 GMT. 1.65 3.03 4.36 4.94 6.07 6.70 7.12 7.19 5.53 5.42 4.86 3.36 5.02 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -27.5 -23.5 -5.0 -1.0 5.5 6.5 11.5 7.5 7.0 -2.0 -5.0 -13.6 -27.5 DAY 25 2 12 17 3 4 3 30 24 24 28 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 1.5 13.0 19.0 22.0 28.5 34.5 36.5 35.8 30.5 28.0 15.5 14.5 36.5 DAY 29 28 21 30 14 25 14 11 9 2 4 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.6 2.0 24.0 12.0 11.0 8.0 0.0 8.0 0.0 22.0 30.0 12.0 30.0 DAY 28 10 4 24 14 1 ** 29 ** 26 12 15 MONTHLY TOTAL PRECIPITATION IN MM. 35.4 2.8 39.0 44.7 52.6 17.0 0.0 11.0 0.0 57.0 64.0 28.4 351.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 21.9 32.5 3.1 42.5 NO. OF DAYS WITH PRECIPITATION. 8 2 6 8 11 3 0 2 0 9 4 5 58 NO. OF DAYS PRECIPITATION EQUAL 6 1 6 8 11 3 0 2 0 9 4 5 55 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 1 2 0 0 0 0 2 3 1 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 54 59 72 70 63 46 40 42 47 67 81 68 59 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 74 46 41 35 24 24 25 25 45 55 71 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 71 50 46 44 30 26 29 26 51 61 72 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 22 1 0 0 0 0 0 0 0 3 16 73 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 1 0 0 0 0 4 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 26 4 0 0 0 0 0 0 0 0 0 7 37 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 18 26 26 2 0 0 0 72 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 12 2 0 0 0 0 0 8 19 28 128 DATE OF START AND END FREEZING START = 23 OCT. END = 17 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -2.3 2.6 5.6 10.6 14.7 19.4 23.4 23.7 19.9 13.5 2.4 3.9 11.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.9 -2.7 -1.4 2.6 6.3 10.5 14.6 14.9 9.9 4.3 -4.2 -0.8 3.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.2 7.9 12.6 18.6 23.2 28.4 32.2 32.6 29.8 22.7 9.0 8.7 19.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.1 10.6 14.0 16.0 16.9 17.9 17.6 17.7 19.9 18.4 13.2 9.5 15.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.15 3.15 3.22 4.03 4.75 5.39 5.44 5.06 4.22 3.98 2.60 3.82 3.99 MEAN OF MIXING RATIO AT 09 GMT. 4.34 4.59 4.07 3.89 4.89 5.89 6.95 7.56 6.46 5.59 3.86 4.66 5.23 MEAN OF MIXING RATIO AT 15 GMT. 3.57 4.44 4.69 3.74 4.87 5.20 6.43 6.61 6.26 5.30 3.28 4.10 4.87 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -21.0 -7.5 -6.5 -2.5 -1.0 3.5 10.0 10.5 5.0 1.5 -10.5 -6.5 -21.0 DAY 15 1 8 1 4 4 9 27 29 29 26 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.2 14.0 19.0 24.0 29.0 34.5 36.5 35.5 31.5 27.4 14.0 12.5 36.5 DAY 29 17 30 10 27 30 17 12 13 6 7 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 9.0 13.0 4.0 4.0 0.0 0.0 0.0 0.0 1.4 10.0 16.4 16.4 DAY 21 23 6 25 8 ** ** ** ** 30 13 10 MONTHLY TOTAL PRECIPITATION IN MM. 24.6 26.8 30.0 8.0 12.0 0.0 0.0 0.0 0.0 1.4 15.0 63.8 181.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.8 11.0 0.0 44.2 NO. OF DAYS WITH PRECIPITATION. 5 5 6 3 5 0 0 0 0 1 3 9 37 NO. OF DAYS PRECIPITATION EQUAL 4 5 6 3 5 0 0 0 0 1 3 9 36 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 2 0 0 0 0 0 0 0 1 3 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 65 76 70 63 54 44 34 33 40 57 65 78 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 83 65 46 29 29 24 23 24 23 31 49 60 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 75 59 33 33 25 23 25 30 39 54 63 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 8 9 0 0 0 0 0 0 0 16 6 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 6 0 0 0 0 0 0 0 0 0 0 0 6 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 14 27 31 18 0 0 0 90 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 26 22 8 1 0 0 0 0 0 24 20 131 DATE OF START AND END FREEZING START = 3 NOV. END = 4 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -6.3 -4.7 1.5 10.8 15.1 20.9 25.0 24.5 18.0 11.3 6.2 0.8 10.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -12.3 -10.4 -4.2 3.4 6.7 12.0 16.3 16.2 8.3 2.4 -0.2 -5.6 2.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. -0.4 0.9 7.3 18.2 23.5 29.7 33.8 32.9 27.8 20.3 12.6 7.0 17.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.9 11.3 11.5 14.8 16.8 17.7 17.5 16.7 19.5 17.9 12.8 12.6 15.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.84 2.18 3.49 4.85 5.62 6.15 5.88 7.21 4.69 3.36 4.16 2.75 4.35 MEAN OF MIXING RATIO AT 09 GMT. 3.45 3.72 5.02 5.44 5.42 6.16 7.67 8.47 6.16 5.21 5.53 3.90 5.51 MEAN OF MIXING RATIO AT 15 GMT. 2.66 3.05 4.40 5.14 4.49 6.03 7.40 8.11 5.86 4.57 5.24 3.44 5.03 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 -24.0 -16.0 -4.0 2.0 8.5 12.5 12.5 2.0 -2.0 -6.5 -14.0 -24.0 DAY 9 4 5 18 1 10 1 21 23 23 26 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 5.0 5.5 17.0 24.5 28.0 31.5 36.0 35.5 32.5 27.0 17.0 16.5 36.0 DAY 14 17 26 21 22 5 4 6 4 3 12 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 19.6 14.9 15.0 15.0 6.5 0.0 0.0 0.0 0.0 2.0 12.0 9.0 19.6 DAY 6 25 19 3 5 ** ** ** ** 25 20 31 MONTHLY TOTAL PRECIPITATION IN MM. 64.2 37.5 57.0 51.0 6.5 0.0 0.0 0.0 0.0 4.0 48.0 22.6 290.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 54.6 19.8 0.0 25.7 NO. OF DAYS WITH PRECIPITATION. 9 9 8 7 1 0 0 0 0 3 7 5 49 NO. OF DAYS PRECIPITATION EQUAL 9 7 8 7 1 0 0 0 0 3 7 5 47 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 2 3 0 0 0 0 0 0 2 0 10 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 80 85 69 58 46 34 46 51 51 77 79 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 83 82 71 41 28 22 21 24 23 32 56 58 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 85 87 79 46 26 25 23 30 36 40 65 68 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 30 26 14 1 0 0 0 0 0 0 2 21 94 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 17 10 2 0 0 0 0 0 0 0 0 2 31 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 14 31 30 9 0 0 0 84 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 25 4 0 0 0 0 0 9 19 30 147 DATE OF START AND END FREEZING START = 18 OCT. END = 27 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -2.7 1.6 5.7 9.3 13.1 18.9 24.2 24.6 18.3 11.8 6.3 3.3 11.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.7 -4.0 -0.6 2.3 5.3 10.3 15.8 16.2 8.7 4.9 -1.5 -2.4 3.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.3 6.9 11.8 16.4 20.9 27.5 32.6 33.0 27.9 18.8 14.0 9.1 18.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.0 10.9 12.4 14.1 15.6 17.2 16.8 16.8 19.2 13.9 15.5 11.5 14.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.42 3.05 3.80 4.66 5.36 7.30 7.73 7.36 4.61 5.22 3.25 3.36 4.85 MEAN OF MIXING RATIO AT 09 GMT. 3.77 4.27 4.23 4.76 5.80 6.79 7.32 7.77 4.70 5.77 3.97 4.95 5.34 MEAN OF MIXING RATIO AT 15 GMT. 3.11 4.03 4.43 4.66 5.72 6.94 7.21 7.23 4.26 5.43 4.07 4.83 5.16 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 -10.0 -8.5 -9.5 -1.0 7.0 11.0 10.0 1.0 1.0 -7.5 -6.6 -20.0 DAY 2 4 5 2 3 7 1 10 25 24 23 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 11.5 20.0 24.5 27.5 32.5 37.5 35.5 31.0 25.5 18.5 13.5 37.5 DAY 31 8 20 25 26 30 17 20 15 5 1 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 29.0 11.0 13.0 13.5 7.0 0.0 0.0 0.0 17.0 6.0 14.0 29.0 DAY 3 20 31 11 6 26 ** ** ** 13 29 14 MONTHLY TOTAL PRECIPITATION IN MM. 21.3 76.8 53.8 61.8 38.0 19.0 0.0 0.0 0.0 35.0 8.2 40.2 354.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 42.9 33.5 0.0 23.6 NO. OF DAYS WITH PRECIPITATION. 7 11 10 10 5 5 0 0 0 5 2 6 61 NO. OF DAYS PRECIPITATION EQUAL 5 11 10 10 5 5 0 0 0 5 2 6 59 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 2 2 2 0 0 0 0 1 0 2 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 79 73 68 65 61 48 44 45 71 69 78 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 64 47 39 36 28 22 22 18 40 37 63 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 75 59 47 43 35 25 25 24 51 49 73 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 14 5 2 0 0 0 0 0 0 9 10 64 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 3 0 0 0 0 0 0 0 0 0 0 0 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 28 31 6 0 0 0 72 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 25 16 7 2 0 0 0 0 0 20 27 127 DATE OF START AND END FREEZING START = 6 NOV. END = 3 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -0.8 -7.0 1.1 11.9 15.7 20.1 23.2 23.6 18.9 11.0 2.9 -6.7 9.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.5 -13.5 -4.7 4.2 8.5 10.6 13.7 15.4 10.1 4.8 -2.3 -11.8 2.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.4 -0.3 7.0 19.8 22.8 29.6 32.6 31.8 27.7 17.1 8.3 -1.6 16.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.9 13.2 11.7 15.6 14.3 19.0 18.9 16.4 17.6 12.3 10.6 10.2 14.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.84 2.02 3.47 5.58 7.99 6.68 6.04 6.65 6.52 6.17 3.87 1.87 4.97 MEAN OF MIXING RATIO AT 09 GMT. 4.39 3.60 4.89 6.01 9.04 6.16 6.46 7.42 8.92 7.81 5.11 2.91 6.06 MEAN OF MIXING RATIO AT 15 GMT. 4.01 2.84 4.63 5.80 8.96 6.21 6.52 6.85 8.17 7.32 4.77 2.42 5.71 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -25.5 -12.5 -1.0 5.0 6.0 9.5 10.5 5.5 1.0 -6.5 -22.0 -25.5 DAY 21 19 6 1 8 2 5 18 27 12 18 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 4.0 14.5 23.5 27.0 32.5 36.0 35.5 31.0 22.0 15.5 5.0 36.0 DAY 4 3 31 22 19 18 15 3 1 1 21 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.2 8.5 12.0 4.8 17.0 0.0 0.0 0.0 2.5 28.0 9.0 17.0 28.0 DAY 6 14 18 7 6 ** ** ** 30 8 1 30 MONTHLY TOTAL PRECIPITATION IN MM. 21.4 40.7 45.1 12.0 46.5 0.0 0.0 0.0 2.5 79.2 20.0 40.4 307.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 34.8 19.0 0.8 45.4 NO. OF DAYS WITH PRECIPITATION. 7 9 8 5 12 0 0 0 1 13 7 6 68 NO. OF DAYS PRECIPITATION EQUAL 7 6 7 3 9 0 0 0 1 12 5 6 56 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 2 0 1 0 0 0 0 2 0 1 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 86 88 69 78 49 38 43 59 84 86 83 71 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 76 85 74 39 48 22 19 23 36 60 69 82 53 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 82 89 80 43 61 26 22 25 41 67 75 83 58 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 13 16 12 0 0 0 0 0 0 0 7 27 75 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 4 14 0 0 0 0 0 0 0 0 0 23 41 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 18 29 25 10 0 0 0 82 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 19 18 22 3 0 0 0 0 0 0 21 31 114 DATE OF START AND END FREEZING START = 3 NOV. END = 11 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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.***** ***** ***** 8.5 15.0 20.8 24.9 25.6 19.4 12.1 8.1 0.1 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** 2.4 8.2 12.2 16.3 17.3 10.7 3.0 1.2 -3.9 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** 14.6 21.9 29.5 33.6 33.8 28.2 21.2 14.6 4.2 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** 12.2 13.7 17.3 17.3 16.5 17.5 18.2 13.4 8.1 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** 5.01 7.96 8.03 6.64 7.48 5.88 3.32 4.29 3.51 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** 5.11 7.80 7.89 7.01 7.78 6.29 3.61 4.71 4.25 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** 5.15 8.00 7.91 6.88 7.12 5.98 4.09 4.82 4.11 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** -5.0 3.5 8.5 12.0 8.0 6.5 -1.5 -1.5 -12.5 ****** DAY ** ** ** 2 3 1 6 28 19 22 4 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** 20.5 26.0 32.5 36.5 38.0 32.5 26.5 20.0 12.5 ****** DAY ** ** ** 17 29 17 14 4 10 1 1 8 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** 9.5 8.5 2.0 0.0 0.0 0.0 0.0 9.0 16.2 ****** DAY ** ** ** 23 18 4 ** ** ** ** 29 11 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** 40.9 30.9 3.5 0.0 0.0 0.0 0.0 42.5 43.4 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** 46.7 0.0 53.3 NO. OF DAYS WITH PRECIPITATION. *** *** *** 9 11 2 0 0 0 0 9 7 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** 9 11 2 0 0 0 0 9 7 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** 0 0 0 0 0 0 0 0 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** 76 78 57 39 41 50 48 74 90 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** 47 45 28 20 22 25 22 46 74 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** 53 54 33 22 23 30 32 55 81 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** 1 0 0 0 0 0 0 0 15 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 1 7 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 0 0 0 0 9 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 18 31 28 10 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** 6 0 0 0 0 0 5 9 28 *** DATE OF START AND END FREEZING START = 6 OCT. END = 15 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -0.4 -0.9 5.8 10.3 11.6 21.6 24.9 24.5 19.6 12.1 5.5 -5.2 10.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.9 -6.1 -0.3 3.1 5.0 13.8 17.5 16.3 10.6 4.1 0.6 -10.0 4.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.1 4.3 11.9 17.5 18.2 29.4 32.4 32.7 28.7 19.6 10.4 -0.5 17.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.0 10.3 12.2 14.4 13.2 15.6 14.9 16.4 18.1 15.5 9.8 9.5 13.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.99 2.93 4.08 4.75 6.21 6.54 6.55 7.16 5.30 3.83 4.77 2.38 4.79 MEAN OF MIXING RATIO AT 09 GMT. 3.92 4.34 4.57 4.36 6.11 6.59 6.01 7.14 5.60 4.70 5.58 3.66 5.21 MEAN OF MIXING RATIO AT 15 GMT. 3.81 3.68 4.37 4.26 6.02 6.55 5.81 7.11 5.46 4.66 5.24 2.96 4.99 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.5 -16.5 -9.5 -1.5 -3.0 6.5 12.5 11.5 5.5 -4.0 -2.5 -19.0 -19.0 DAY 31 1 16 4 2 2 2 28 29 21 16 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 13.0 20.0 23.0 23.0 33.0 35.5 35.0 34.5 25.0 17.0 6.4 35.5 DAY 5 12 10 20 27 11 22 16 2 1 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.8 6.2 36.0 11.0 11.0 7.0 0.0 1.5 0.0 28.0 22.0 14.0 36.0 DAY 14 5 25 23 10 2 ** 12 ** 19 25 25 MONTHLY TOTAL PRECIPITATION IN MM. 18.1 17.3 80.8 32.0 70.2 7.0 0.0 1.5 0.0 28.0 97.8 47.0 399.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 29.1 27.3 0.4 43.2 NO. OF DAYS WITH PRECIPITATION. 4 5 10 6 12 1 0 1 0 1 12 7 59 NO. OF DAYS PRECIPITATION EQUAL 4 5 9 5 12 1 0 1 0 1 12 7 57 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 3 1 3 0 0 0 0 1 3 2 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 86 87 76 69 75 44 35 42 46 58 88 88 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 78 51 33 45 25 18 21 20 32 65 89 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 80 57 39 52 27 19 25 26 42 76 89 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 21 4 0 0 0 0 0 0 1 0 26 74 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 4 2 0 0 0 0 7 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 5 0 0 0 0 0 0 0 0 0 20 28 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 15 30 28 9 0 0 0 82 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 27 15 7 2 0 0 0 0 5 17 30 132 DATE OF START AND END FREEZING START = 20 OCT. END = 3 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -1.1 -0.3 1.2 10.0 15.9 21.6 25.3 ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -6.8 -5.9 -4.4 3.3 7.9 12.6 17.7 ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.5 5.4 6.8 16.7 24.0 30.5 32.9 ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.2 11.3 11.2 13.4 16.1 17.9 15.2 ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.01 2.88 3.51 4.97 6.03 6.43 7.52 ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 4.49 4.12 4.42 5.01 5.56 5.62 7.35 ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 3.96 3.63 4.25 4.78 5.26 5.51 7.16 ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.0 -19.0 -18.5 0.5 2.0 8.0 10.5 ***** ***** ***** ***** ***** ****** DAY 7 28 1 8 5 12 28 ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.5 14.0 16.0 27.0 31.0 35.5 36.0 ***** ***** ***** ***** ***** ****** DAY 28 15 20 18 30 26 20 ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.0 16.0 12.5 15.0 0.0 0.0 0.0 ***** ***** ***** ***** ***** ****** DAY 15 2 18 6 ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 39.5 39.0 38.5 35.5 0.0 0.0 0.0 ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 76.7 23.3 0.0 ***** NO. OF DAYS WITH PRECIPITATION. 8 4 7 4 0 0 0 *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL 8 4 7 4 0 0 0 *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 1 1 0 0 0 *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 85 86 73 59 45 42 *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 80 71 69 43 28 19 21 *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 85 73 74 47 31 22 23 *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 17 19 12 0 0 0 0 *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 6 *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 4 7 0 0 0 0 *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 19 30 *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 27 20 0 0 0 0 *** *** *** *** *** *** DATE OF START AND END FREEZING START = 1 JAN. END = 30 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MEAN AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. 0.8 3.4 4.1 9.8 16.9 22.0 23.8 23.6 19.2 10.0 6.6 0.8 11.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.2 -3.4 -1.5 1.6 9.1 13.4 15.8 15.2 10.4 4.3 -0.6 -4.4 4.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.7 10.3 9.6 17.9 24.8 30.5 31.8 32.0 28.1 15.7 13.9 6.0 18.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.9 13.7 11.1 16.3 15.7 17.1 16.0 16.8 17.7 11.4 14.5 10.4 14.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.00 3.45 3.98 4.56 6.68 6.67 8.13 7.98 5.86 5.15 3.63 3.09 5.18 MEAN OF MIXING RATIO AT 09 GMT. 4.46 4.25 4.88 4.30 6.09 6.19 9.26 7.78 6.80 6.21 4.75 4.38 5.78 MEAN OF MIXING RATIO AT 15 GMT. 4.14 4.13 4.73 4.54 6.74 6.31 8.30 7.62 6.78 5.71 4.82 3.95 5.65 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -8.0 -8.0 -4.0 4.0 9.0 12.5 10.5 3.0 0.0 -9.5 -12.5 -12.5 DAY 8 7 15 6 6 6 6 18 22 11 30 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 16.5 14.5 24.5 29.0 34.5 36.5 35.5 32.5 27.5 18.0 12.0 36.5 DAY 31 3 7 30 16 29 19 8 6 2 6 12 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.5 10.0 26.0 12.0 8.0 0.0 2.5 0.0 0.0 35.5 0.0 27.5 35.5 DAY 26 10 4 4 19 ** 26 ** ** 26 ** 20 MONTHLY TOTAL PRECIPITATION IN MM. 13.5 29.7 123.3 17.5 12.5 0.0 2.5 0.0 0.0 112.6 0.0 63.8 375.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.4 8.0 0.7 47.0 NO. OF DAYS WITH PRECIPITATION. 3 7 13 3 3 0 1 0 0 9 0 8 47 NO. OF DAYS PRECIPITATION EQUAL 3 7 13 3 3 0 1 0 0 9 0 8 47 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 5 1 0 0 0 0 0 5 0 2 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 86 85 69 60 44 48 50 50 73 71 82 67 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 54 61 33 30 21 30 25 27 54 43 71 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 65 71 42 40 25 31 30 34 63 59 77 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 12 6 1 0 0 0 0 0 0 3 18 59 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 2 0 0 0 0 3 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 2 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 19 25 26 12 0 0 0 82 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 25 21 13 0 0 0 0 0 2 19 26 135 DATE OF START AND END FREEZING START = 11 OCT. END = 28 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -2.5 -1.9 5.2 10.0 15.7 20.7 24.4 23.7 19.2 13.5 5.7 1.1 11.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.5 -6.2 -0.9 3.4 7.5 12.2 16.8 16.0 9.8 5.2 -2.1 -5.4 4.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.4 2.4 11.4 16.6 23.9 29.2 32.1 31.4 28.7 21.8 13.5 7.6 18.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.9 8.6 12.3 13.2 16.4 17.0 15.3 15.4 18.9 16.6 15.6 13.0 14.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.65 2.97 3.88 5.51 5.97 7.19 8.93 8.44 5.14 4.91 3.74 2.88 5.18 MEAN OF MIXING RATIO AT 09 GMT. 4.37 4.20 4.08 6.33 6.12 7.07 10.12 8.91 6.45 6.29 4.79 4.07 6.07 MEAN OF MIXING RATIO AT 15 GMT. 3.45 3.63 4.15 5.97 6.47 6.73 9.59 8.12 6.32 6.36 4.70 3.94 5.79 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -15.0 -7.0 -6.5 3.0 8.0 10.0 8.5 6.0 0.0 -11.5 -18.0 -18.0 DAY 30 7 6 3 7 20 1 31 30 23 15 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.0 11.0 18.5 22.5 29.5 34.0 36.5 36.5 34.0 26.0 20.0 15.5 36.5 DAY 4 29 20 18 27 13 21 1 15 5 3 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 15.0 9.4 22.0 2.8 0.0 1.0 5.0 0.0 7.5 3.0 25.0 25.0 DAY 7 2 8 25 20 ** 9 25 ** 16 20 17 MONTHLY TOTAL PRECIPITATION IN MM. 47.4 41.3 36.6 90.7 2.8 0.0 1.0 5.0 0.0 11.5 7.5 60.5 304.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 41.2 30.7 2.0 26.1 NO. OF DAYS WITH PRECIPITATION. 11 8 7 9 1 0 1 1 0 2 4 7 51 NO. OF DAYS PRECIPITATION EQUAL 11 8 7 9 1 0 1 1 0 2 4 7 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 0 5 0 0 0 0 0 0 0 2 10 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 92 80 75 60 54 51 53 47 64 76 79 68 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 86 82 48 48 30 26 32 29 25 36 45 60 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 88 88 59 57 39 29 35 30 32 52 58 70 53 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 22 5 2 0 0 0 0 0 0 13 16 82 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 6 3 0 0 0 0 9 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 6 9 0 0 0 0 0 0 0 0 0 3 18 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 27 26 10 0 0 0 72 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 21 9 0 0 0 0 0 1 18 31 138 DATE OF START AND END FREEZING START = 23 OCT. END = 11 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MEAN AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -7.3 -9.6 3.2 11.6 15.4 21.8 25.5 25.5 ***** 13.9 6.5 1.6 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -13.8 -17.3 -1.8 3.3 7.2 12.3 17.2 18.1 ***** 5.3 -0.3 -4.3 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. -0.8 -1.9 8.1 20.0 23.5 31.4 33.9 33.0 ***** 22.5 13.3 7.6 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.0 15.4 9.9 16.7 16.3 19.1 16.7 14.9 ***** 17.2 13.6 11.9 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** 4.11 4.75 5.66 6.25 8.04 7.78 ***** 5.34 4.30 3.32 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.76 ***** 5.32 4.50 5.31 6.16 8.39 8.11 ***** 7.85 5.99 4.73 ***** MEAN OF MIXING RATIO AT 15 GMT. 2.88 ***** 4.82 4.61 5.33 6.25 7.89 7.95 ***** 6.37 5.58 4.48 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -23.0 -26.0 -8.0 -6.5 0.0 8.5 13.5 14.5 ***** 1.5 -6.0 -8.0 ****** DAY 31 16 31 1 2 8 10 2 ** 23 22 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 5.0 8.5 17.0 24.0 31.0 37.0 38.0 36.0 ***** 28.0 18.0 12.0 ****** DAY 20 28 25 15 25 30 14 9 ** 8 29 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 10.0 24.0 0.0 11.5 0.0 0.0 0.0 ***** 6.5 13.0 16.0 ****** DAY 27 11 16 ** 7 ** ** ** ** 21 15 2 MONTHLY TOTAL PRECIPITATION IN MM. 28.0 40.0 83.0 0.0 11.5 0.0 0.0 0.0 ***** 14.9 26.5 44.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 60.8 4.6 0.0 34.6 NO. OF DAYS WITH PRECIPITATION. 7 7 15 0 1 0 0 0 *** 3 6 7 *** NO. OF DAYS PRECIPITATION EQUAL 7 7 14 0 1 0 0 0 *** 3 6 7 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 2 0 1 0 0 0 *** 0 1 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** 84 66 55 43 41 42 *** 70 82 85 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 93 *** 73 28 28 20 23 24 *** 42 56 67 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 90 *** 78 37 34 25 25 28 *** 48 69 79 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 28 7 1 0 0 0 0 *** 0 2 18 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 4 *** 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 21 16 0 0 0 0 0 0 *** 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 21 31 20 *** 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 *** 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 *** 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 28 21 3 1 0 0 0 *** 0 18 29 *** DATE OF START AND END FREEZING START = 1 NOV. END = 2 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -6.2 ***** 3.2 8.8 15.5 21.3 24.9 25.0 20.3 12.4 7.7 -0.1 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -12.2 ***** -3.3 1.0 7.3 11.8 17.5 16.9 10.4 4.3 -0.3 -7.5 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. -0.3 ***** 9.7 16.7 23.6 30.8 32.3 33.1 30.2 20.6 15.6 7.3 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.9 ***** 13.0 15.7 16.3 19.0 14.8 16.2 19.8 16.3 15.8 14.8 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.16 ***** 3.64 4.46 5.95 6.12 7.49 7.61 6.57 4.53 3.49 2.42 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.76 ***** 4.36 3.87 5.32 4.91 7.68 8.13 6.67 6.05 4.55 3.82 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.03 ***** 4.14 4.25 5.20 5.26 7.67 7.84 6.40 5.44 4.71 3.71 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -23.5 ***** -9.5 -2.5 2.5 7.0 11.5 12.0 5.0 0.5 -6.5 -21.0 ****** DAY 27 ** 21 6 8 1 7 10 28 26 14 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 5.0 ***** 15.5 25.0 30.0 35.0 36.5 36.5 32.0 25.5 21.0 17.5 ****** DAY 1 ** 24 30 22 29 17 4 1 3 4 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 ***** 7.0 22.0 14.0 0.0 11.0 0.0 0.0 14.5 11.0 16.0 ****** DAY 1 ** 14 2 13 ** 7 ** ** 28 12 25 MONTHLY TOTAL PRECIPITATION IN MM. 56.0 ***** 25.6 36.0 29.5 0.0 19.0 0.0 0.0 28.5 11.0 21.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 36.0 28.9 8.4 26.7 NO. OF DAYS WITH PRECIPITATION. 8 *** 6 3 3 0 3 0 0 3 1 4 *** NO. OF DAYS PRECIPITATION EQUAL 8 *** 6 3 3 0 3 0 0 3 1 4 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 *** 0 2 1 0 1 0 0 2 1 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 *** 82 72 56 42 41 44 56 62 67 72 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 89 *** 55 32 27 16 23 24 22 35 36 55 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 89 *** 70 48 38 23 27 26 27 42 52 70 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 *** 14 0 0 0 0 0 0 0 2 19 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 4 3 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 15 *** 1 0 0 0 0 0 0 0 0 6 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 1 22 26 27 21 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 *** 24 13 0 0 0 0 0 0 17 29 *** DATE OF START AND END FREEZING START = 13 NOV. END = 22 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -3.8 -3.7 3.8 11.2 13.8 20.9 24.8 24.2 19.1 12.5 6.2 -2.3 10.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -9.3 -9.5 -1.2 3.8 5.6 12.3 17.2 16.2 9.8 5.0 -1.4 -7.6 3.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.7 2.2 8.8 18.6 22.0 29.5 32.5 32.2 28.4 20.1 13.9 3.0 17.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.0 11.7 10.0 14.8 16.4 17.2 15.3 16.0 18.6 15.1 15.3 10.6 14.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.35 2.43 3.92 4.81 4.95 5.89 7.07 7.09 5.87 5.54 3.77 2.83 4.71 MEAN OF MIXING RATIO AT 09 GMT. 4.18 4.19 4.50 5.07 5.43 5.79 7.15 7.36 6.14 6.56 5.02 4.52 5.49 MEAN OF MIXING RATIO AT 15 GMT. 3.23 3.13 4.05 4.57 5.05 5.55 6.88 6.88 5.78 5.61 5.00 3.68 4.95 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -19.5 -11.5 -2.0 0.5 7.0 11.0 12.0 4.0 0.5 -6.5 -18.5 -19.5 DAY 16 13 11 11 6 1 7 27 27 31 27 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.0 8.5 19.0 24.0 26.5 36.0 38.2 36.5 34.0 24.0 21.5 8.0 38.2 DAY 31 26 31 22 29 28 21 5 1 7 3 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 8.0 12.0 20.6 0.0 0.0 0.0 0.0 0.0 6.0 0.0 27.0 27.0 DAY 2 27 13 4 ** ** ** ** ** 20 ** 12 MONTHLY TOTAL PRECIPITATION IN MM. 24.0 29.5 70.0 31.8 0.0 0.0 0.0 0.0 0.0 23.5 0.0 99.5 278.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.4 11.4 0.0 44.2 NO. OF DAYS WITH PRECIPITATION. 5 9 12 5 0 0 0 0 0 9 0 11 51 NO. OF DAYS PRECIPITATION EQUAL 5 8 12 5 0 0 0 0 0 9 0 11 50 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 2 1 0 0 0 0 0 0 0 3 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 76 76 63 58 45 39 44 54 74 77 81 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 83 80 60 36 31 20 22 23 24 40 44 81 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 77 67 44 38 25 24 24 29 47 59 83 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 23 5 0 0 0 0 0 0 0 8 21 86 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 5 1 0 0 0 0 6 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 10 10 1 0 0 0 0 0 0 0 0 9 30 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 13 25 23 10 0 0 0 71 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 21 4 0 0 0 0 0 0 21 26 130 DATE OF START AND END FREEZING START = 7 NOV. END = 14 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -8.9 ***** ***** ***** ***** 18.6 24.4 22.3 16.7 11.8 ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -15.5 ***** ***** ***** ***** 10.8 16.2 15.1 7.1 2.5 ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. -2.2 ***** ***** ***** ***** 26.4 32.5 29.5 26.2 21.1 ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.3 ***** ***** ***** ***** 15.6 16.3 14.4 19.1 18.6 ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.62 ***** ***** ***** ***** 7.51 8.14 8.94 6.46 3.43 ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 3.15 ***** ***** ***** ***** 7.01 9.38 10.71 12.80 4.26 ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 2.21 ***** ***** ***** ***** 7.25 9.79 9.82 10.35 4.24 ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -26.0 ***** ***** ***** ***** 6.5 12.0 9.0 3.5 -2.5 ***** ***** ****** DAY 29 ** ** ** ** 5 10 31 20 28 ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 3.0 ***** ***** ***** ***** 35.0 36.0 33.5 28.5 24.5 ***** ***** ****** DAY 22 ** ** ** ** 30 5 5 2 3 ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 ***** ***** ***** ***** 10.0 0.0 0.0 0.0 0.0 ***** ***** ****** DAY 30 ** ** ** ** 7 ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 31.0 ***** ***** ***** ***** 16.0 0.0 0.0 0.0 0.0 ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 66.0 34.0 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. 8 *** *** *** *** 4 0 0 0 0 *** *** *** NO. OF DAYS PRECIPITATION EQUAL 8 *** *** *** *** 4 0 0 0 0 *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 *** *** *** *** 1 0 0 0 0 *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 *** *** *** *** 62 47 59 68 54 *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 82 *** *** *** *** 31 28 38 54 24 *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 *** *** *** *** 38 33 42 58 33 *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 *** *** *** *** 0 0 0 0 0 *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 *** *** *** *** 0 1 1 0 0 *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 20 *** *** *** *** 0 0 0 0 0 *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** *** *** 4 27 17 0 0 *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** *** *** 0 0 0 0 0 *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** *** *** 0 0 0 0 0 *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 *** *** *** *** 0 0 0 0 3 *** *** *** DATE OF START AND END FREEZING START = 27 OCT. END = 31 JAN. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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.***** ***** ***** ***** ***** ***** ***** 23.2 19.8 11.8 3.8 2.1 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** 15.3 10.7 4.4 -1.2 -3.3 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** 31.1 28.9 19.2 8.8 7.4 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** 15.8 18.2 14.8 10.0 10.7 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** 7.08 6.57 4.28 4.33 3.32 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** 9.15 8.00 7.55 5.92 4.66 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** 7.55 8.34 5.81 4.91 4.11 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** 12.0 3.0 -0.5 -11.0 -9.0 ****** DAY ** ** ** ** ** ** ** 13 30 8 30 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** 34.0 32.5 26.5 15.5 13.0 ****** DAY ** ** ** ** ** ** ** 14 1 1 8 22 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** 0.0 0.0 12.5 18.0 11.0 ****** DAY ** ** ** ** ** ** ** ** ** 29 26 15 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** 0.0 0.0 17.0 98.5 27.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** 0.0 100.0 NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** 0 0 3 12 4 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** 0 0 3 12 4 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** 0 0 1 4 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** 46 57 59 87 81 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** 29 28 47 75 67 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** 30 46 54 76 73 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 0 0 0 9 15 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 0 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 0 0 0 1 1 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 24 11 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** 0 0 1 15 28 *** DATE OF START AND END FREEZING START = 8 OCT. END = 30 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MEAN AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.7 -0.4 5.3 11.2 14.5 20.1 25.2 25.2 17.6 11.8 6.6 -1.7 11.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.0 -5.5 -0.9 4.3 7.3 11.5 17.6 16.9 9.3 4.4 1.3 -6.8 4.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.4 4.7 11.5 18.2 21.8 28.8 32.8 33.4 25.9 19.2 11.8 3.3 18.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.4 10.2 12.4 13.9 14.5 17.3 15.2 16.5 16.6 14.8 10.5 10.1 13.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.18 2.81 3.86 5.10 6.50 6.98 8.11 6.35 4.73 4.65 4.55 2.51 4.94 MEAN OF MIXING RATIO AT 09 GMT. 4.56 4.05 4.14 5.51 6.49 7.94 8.32 6.17 5.08 5.27 5.68 3.87 5.59 MEAN OF MIXING RATIO AT 15 GMT. 4.09 3.65 4.27 5.64 6.38 7.58 8.74 6.42 5.34 5.08 5.38 3.40 5.50 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.0 -13.5 -7.5 -5.0 2.0 7.0 10.0 11.5 3.0 0.0 -3.0 -16.5 -16.5 DAY 11 4 17 5 7 4 1 29 22 16 28 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.0 11.5 19.5 25.0 29.0 32.5 36.5 36.5 31.5 24.5 16.5 10.5 36.5 DAY 4 27 31 22 31 10 30 3 1 1 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 32.0 24.0 29.5 16.2 0.0 0.0 0.0 0.0 6.5 39.5 5.0 39.5 DAY 17 1 1 30 15 ** ** ** ** 31 7 13 MONTHLY TOTAL PRECIPITATION IN MM. 37.0 47.0 44.5 61.5 32.0 0.0 0.0 0.0 0.0 22.5 187.2 21.6 453.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 28.3 20.6 0.0 51.0 NO. OF DAYS WITH PRECIPITATION. 8 6 5 7 6 0 0 0 0 9 12 8 61 NO. OF DAYS PRECIPITATION EQUAL 7 6 5 7 5 0 0 0 0 9 12 8 59 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 2 1 0 0 0 0 0 8 0 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 80 78 67 69 53 46 38 45 63 77 81 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 73 72 48 40 36 29 24 17 21 36 58 72 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 75 57 47 43 32 31 21 30 46 69 78 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 17 5 1 0 0 0 0 0 0 0 21 62 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 6 1 0 0 0 0 7 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 4 0 0 0 0 0 0 0 0 0 7 12 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 15 25 31 2 0 0 0 73 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 27 16 3 0 0 0 0 0 1 13 28 114 DATE OF START AND END FREEZING START = 16 OCT. END = 6 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. 1.6 2.1 5.5 9.4 14.3 18.5 25.6 25.3 17.6 12.4 6.2 -1.4 11.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.1 -4.1 -1.8 2.5 7.7 10.5 17.8 16.6 9.3 4.9 -2.0 -7.8 4.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.3 8.2 12.9 16.3 21.0 26.5 33.5 34.0 25.9 19.9 14.3 5.0 18.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.4 12.3 14.7 13.8 13.3 16.0 15.7 17.4 16.6 15.0 16.3 12.8 14.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.57 2.91 3.58 5.16 6.86 7.50 7.00 5.56 4.73 4.36 3.05 2.22 4.62 MEAN OF MIXING RATIO AT 09 GMT. 4.08 4.27 4.03 5.74 7.96 8.05 6.55 6.96 5.06 4.76 3.82 3.28 5.38 MEAN OF MIXING RATIO AT 15 GMT. 3.81 4.07 4.28 5.66 7.45 7.78 6.79 7.05 5.43 4.87 4.24 3.06 5.37 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.5 -10.5 -8.5 -2.0 -1.0 3.0 12.5 12.0 3.0 -0.5 -11.0 -14.5 -14.5 DAY 23 26 1 2 9 9 6 11 22 28 27 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 13.0 17.5 22.0 25.5 32.5 37.5 35.5 31.5 26.0 20.5 10.0 37.5 DAY 29 21 25 1 19 21 16 5 1 1 1 28 24 HOUR MAXIMUM PRECIPITATION IN MM. 3.0 17.0 12.0 14.0 21.5 13.0 0.0 0.0 0.0 2.0 6.5 3.5 21.5 DAY 18 23 15 24 29 3 ** ** ** 15 3 9 MONTHLY TOTAL PRECIPITATION IN MM. 5.5 54.0 53.0 47.2 72.5 19.0 0.0 0.0 0.0 2.0 9.5 8.5 271.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 41.5 51.1 0.0 7.4 NO. OF DAYS WITH PRECIPITATION. 2 5 6 9 9 2 0 0 0 1 2 4 40 NO. OF DAYS PRECIPITATION EQUAL 2 5 6 9 9 2 0 0 0 1 2 4 40 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 3 4 2 2 1 0 0 0 0 0 0 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 76 76 76 71 63 40 34 45 58 65 78 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 57 60 41 47 47 35 19 19 21 29 32 54 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 72 55 58 54 39 22 23 32 41 52 67 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 14 9 0 0 0 0 0 0 0 9 26 80 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 7 0 0 0 0 0 7 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 3 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 29 31 2 0 0 0 64 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 22 7 1 0 0 0 0 2 20 31 140 DATE OF START AND END FREEZING START = 25 OCT. END = 9 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -2.2 1.4 2.1 9.1 15.9 20.5 23.8 23.5 19.5 12.4 5.9 3.2 11.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.4 -2.9 -2.3 3.2 8.5 12.3 16.8 15.2 10.4 4.3 -0.9 -2.8 4.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.5 5.8 6.5 15.0 23.2 28.7 30.7 31.9 28.6 20.4 12.8 9.2 17.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 6.9 8.7 8.8 11.8 14.7 16.4 13.9 16.7 18.2 16.1 13.6 12.0 13.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.80 3.52 3.67 4.85 6.64 7.53 8.73 5.85 4.86 4.41 3.16 3.53 4.96 MEAN OF MIXING RATIO AT 09 GMT. 3.65 4.56 4.72 5.17 7.40 6.71 8.29 6.13 5.08 4.73 3.31 4.34 5.34 MEAN OF MIXING RATIO AT 15 GMT. 3.22 4.25 4.34 5.19 7.68 7.16 8.19 5.79 5.37 4.83 3.64 4.55 5.35 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.5 -11.5 -12.5 -2.5 5.0 6.0 12.0 11.0 7.0 -0.5 -10.0 -10.0 -17.5 DAY 24 29 1 4 1 6 16 9 16 19 13 16 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.5 14.0 18.5 21.5 29.0 32.0 33.5 35.0 32.0 26.0 18.0 14.5 35.0 DAY 2 25 30 21 30 3 18 12 11 1 2 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.5 12.0 35.0 27.0 15.0 3.0 2.0 6.0 0.0 4.0 0.0 14.0 35.0 DAY 5 19 2 3 10 29 3 30 ** 13 ** 22 MONTHLY TOTAL PRECIPITATION IN MM. 50.2 90.3 96.0 81.5 30.0 4.0 2.0 6.0 0.0 4.0 0.0 30.4 394.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 60.0 29.3 2.0 8.7 NO. OF DAYS WITH PRECIPITATION. 8 14 15 13 7 2 1 1 0 1 0 6 68 NO. OF DAYS PRECIPITATION EQUAL 7 14 15 13 6 2 1 1 0 1 0 6 66 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 3 2 2 1 0 0 0 0 0 0 1 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 86 82 75 67 55 51 39 45 60 66 82 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 83 73 73 47 39 25 27 19 18 28 32 57 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 84 80 76 55 49 32 31 21 27 39 49 73 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 15 10 8 0 0 0 0 0 0 0 5 10 48 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 4 0 0 0 0 0 5 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 19 4 1 0 0 0 0 0 0 0 0 0 24 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 11 24 26 12 0 0 0 73 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 19 27 25 4 0 0 0 0 0 4 20 24 123 DATE OF START AND END FREEZING START = 17 OCT. END = 16 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -0.3 -2.1 2.0 8.8 14.5 20.8 25.7 25.8 17.8 12.8 5.9 1.0 11.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.6 -9.2 -3.5 2.1 7.2 12.9 17.6 17.8 8.9 4.5 0.6 -3.8 4.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.0 5.1 7.6 15.4 21.9 28.8 33.9 33.7 26.7 21.1 11.2 5.9 18.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.6 14.3 11.1 13.3 14.7 15.9 16.3 15.9 17.8 16.6 10.6 9.7 14.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.72 2.28 3.30 4.63 6.18 8.28 8.43 7.90 6.83 5.59 4.35 3.31 5.32 MEAN OF MIXING RATIO AT 09 GMT. 4.40 4.35 4.74 5.21 6.48 7.63 8.78 8.14 7.31 8.11 5.79 5.10 6.34 MEAN OF MIXING RATIO AT 15 GMT. 4.09 3.75 4.58 5.12 6.61 7.33 8.94 8.32 7.77 7.68 5.61 4.44 6.19 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -22.5 -17.0 -13.0 -7.0 2.0 6.5 13.5 11.5 5.0 0.0 -4.5 -13.0 -22.5 DAY 29 2 8 12 6 3 6 31 28 25 28 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.0 13.0 14.0 26.5 28.0 31.0 38.0 37.0 31.0 26.0 14.5 12.0 38.0 DAY 6 18 22 26 27 26 30 14 1 6 5 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.8 12.0 33.0 33.5 6.5 3.6 0.0 0.0 0.0 0.0 7.0 10.0 33.5 DAY 16 19 29 5 5 7 ** ** ** ** 1 4 MONTHLY TOTAL PRECIPITATION IN MM. 26.4 24.0 106.0 89.3 12.7 3.6 0.0 0.0 0.0 0.0 26.7 47.6 336.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 46.5 31.4 0.0 22.1 NO. OF DAYS WITH PRECIPITATION. 4 4 10 8 3 1 0 0 0 0 7 8 45 NO. OF DAYS PRECIPITATION EQUAL 4 4 10 8 3 1 0 0 0 0 7 8 45 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 4 3 0 0 0 0 0 0 0 2 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 83 82 74 65 60 49 44 69 76 79 86 71 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 74 69 48 36 28 25 23 29 48 61 79 49 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 79 78 53 43 31 29 27 41 58 76 85 57 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 24 12 3 0 0 0 0 0 0 3 13 75 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 3 0 0 0 0 5 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 4 1 0 0 0 0 0 0 0 0 1 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 13 29 31 2 0 0 0 75 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 9 0 0 0 0 0 1 14 30 142 DATE OF START AND END FREEZING START = 25 OCT. END = 14 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -6.2 -2.7 3.1 11.3 15.0 22.1 24.4 24.5 19.8 12.9 8.5 6.1 11.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -12.3 -7.5 -2.3 4.2 8.0 14.3 16.8 17.0 11.3 4.5 0.6 -0.7 4.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. -0.1 2.0 8.5 18.4 22.0 30.0 32.0 32.1 28.4 21.2 16.3 13.0 18.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.2 9.5 10.8 14.2 14.0 15.7 15.2 15.1 17.1 16.7 15.7 13.7 14.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.92 2.73 4.03 5.37 7.29 8.07 8.92 8.38 7.55 4.91 3.38 3.26 5.48 MEAN OF MIXING RATIO AT 09 GMT. 3.72 4.67 5.35 5.31 7.14 6.49 9.00 7.89 8.33 5.79 5.28 5.11 6.17 MEAN OF MIXING RATIO AT 15 GMT. 2.91 3.88 4.91 5.36 7.93 7.79 9.84 9.19 8.92 5.98 5.47 5.06 6.44 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -25.0 -22.0 -12.0 -0.5 2.5 8.5 12.0 13.0 8.0 0.5 -2.0 -7.0 -25.0 DAY 10 18 4 25 1 4 7 7 23 25 18 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 5.0 9.5 18.0 25.5 28.0 35.0 36.0 35.0 33.5 26.5 20.0 20.0 36.0 DAY 25 2 24 15 11 29 11 17 2 5 20 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 17.0 16.0 30.2 11.6 19.7 1.0 1.5 16.0 1.5 5.0 4.5 6.0 30.2 DAY 5 15 17 5 13 19 25 2 14 10 12 4 MONTHLY TOTAL PRECIPITATION IN MM. 82.4 50.8 131.7 35.8 41.1 1.0 1.7 18.2 1.7 8.0 4.5 6.5 383.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 69.1 20.3 5.6 5.0 NO. OF DAYS WITH PRECIPITATION. 14 7 11 8 10 1 2 2 2 2 1 2 62 NO. OF DAYS PRECIPITATION EQUAL 14 7 11 6 9 1 1 2 1 2 1 1 56 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 5 1 1 0 0 1 0 0 0 0 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 86 86 91 74 76 54 52 51 66 70 66 70 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 87 93 74 38 40 22 27 24 31 33 42 52 47 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 86 95 79 47 54 30 35 34 44 48 63 68 57 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 28 20 11 0 0 0 0 0 0 0 0 7 66 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 5 1 0 0 0 0 6 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 15 9 3 0 0 0 0 0 0 0 0 0 27 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 15 25 24 8 0 0 0 72 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 21 1 0 0 0 0 0 0 14 18 112 DATE OF START AND END FREEZING START = 1 NOV. END = 25 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MEAN AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -0.4 2.4 4.4 10.6 16.9 21.9 24.0 24.9 19.0 13.7 4.7 0.9 11.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.6 -4.3 -3.0 3.0 8.1 13.2 16.5 17.0 10.0 5.5 -1.3 -5.2 4.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.7 9.2 11.8 18.2 25.7 30.7 31.6 32.8 28.1 21.9 10.6 7.0 19.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.3 13.5 14.8 15.2 17.6 17.5 15.1 15.8 18.1 16.4 11.9 12.2 14.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.06 3.20 3.31 5.24 6.94 8.96 10.51 10.25 7.70 5.94 4.02 3.09 6.02 MEAN OF MIXING RATIO AT 09 GMT. 4.70 5.24 5.69 6.90 9.96 9.32 12.66 12.30 10.96 9.28 6.46 5.08 8.21 MEAN OF MIXING RATIO AT 15 GMT. 3.73 4.96 5.50 6.84 10.53 9.68 12.82 12.80 10.64 8.69 5.37 4.33 7.99 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.0 -12.0 -11.5 -1.0 2.5 9.0 11.5 13.0 4.0 1.5 -9.0 -19.0 -19.0 DAY 27 7 17 12 21 8 16 31 29 24 30 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 14.0 19.0 23.5 33.0 35.0 37.0 35.0 32.0 27.0 16.0 14.0 37.0 DAY 14 26 31 30 31 22 3 1 3 1 25 31 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.5 18.4 19.4 15.5 4.0 0.0 18.5 0.0 0.0 11.6 5.7 12.0 19.4 DAY 1 20 17 2 9 ** 15 ** ** 31 1 2 MONTHLY TOTAL PRECIPITATION IN MM. 48.2 40.9 44.3 40.5 9.5 0.0 20.5 0.0 0.0 17.6 16.4 33.0 270.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 49.2 18.5 7.6 24.7 NO. OF DAYS WITH PRECIPITATION. 7 5 6 5 3 0 2 0 0 3 3 6 40 NO. OF DAYS PRECIPITATION EQUAL 7 5 5 5 3 0 2 0 0 2 3 6 38 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 2 2 0 0 1 0 0 1 0 1 10 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 86 79 78 69 62 64 62 70 76 83 87 75 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 80 70 64 50 44 30 41 36 43 51 73 78 55 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 85 79 70 59 54 36 48 44 54 63 85 81 63 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 18 11 0 0 0 0 0 0 0 3 21 74 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 1 0 0 0 0 2 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 0 0 0 0 0 0 0 0 0 0 6 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 5 22 22 30 10 0 0 0 89 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 28 8 0 0 0 0 0 0 24 26 143 DATE OF START AND END FREEZING START = 2 NOV. END = 19 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 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. -2.5 -4.8 4.1 12.3 17.2 22.5 25.1 24.7 19.9 11.1 4.8 -0.2 11.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.5 -12.4 -3.2 4.5 8.4 14.0 17.4 16.7 11.4 4.5 -0.5 -4.3 4.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.5 2.8 11.4 20.1 26.0 31.0 32.9 32.6 28.4 17.8 10.2 3.9 18.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.0 15.2 14.6 15.6 17.6 17.0 15.5 15.9 17.0 13.3 10.7 8.2 14.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.42 1.89 3.64 5.72 6.08 8.97 10.34 9.07 7.65 5.74 3.85 3.36 5.73 MEAN OF MIXING RATIO AT 09 GMT. 4.24 3.99 6.17 8.73 8.51 10.49 14.49 10.86 10.24 9.24 6.62 4.70 8.19 MEAN OF MIXING RATIO AT 15 GMT. 3.65 3.34 6.04 8.68 9.10 11.11 13.68 11.14 10.23 8.33 5.52 4.20 7.92 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -21.0 -23.0 -10.0 0.0 3.5 5.0 12.0 12.0 5.1 1.0 -5.0 -13.0 -23.0 DAY 31 9 5 2 3 14 28 1 28 6 12 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 13.0 16.5 24.0 32.5 36.0 37.5 35.0 33.5 22.5 15.0 8.0 37.5 DAY 1 25 30 20 30 23 1 2 9 10 1 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 23.9 20.0 23.8 6.4 2.4 0.0 0.0 0.0 2.2 22.2 12.0 32.0 32.0 DAY 29 14 24 21 7 ** ** ** 29 17 29 1 MONTHLY TOTAL PRECIPITATION IN MM. 73.3 29.0 72.6 11.8 2.4 0.0 0.0 0.0 2.2 66.2 19.2 120.8 397.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.0 3.6 0.6 51.9 NO. OF DAYS WITH PRECIPITATION. 7 3 8 4 1 0 0 0 1 5 5 10 44 NO. OF DAYS PRECIPITATION EQUAL 7 3 8 3 1 0 0 0 1 5 4 10 42 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 1 3 0 0 0 0 0 0 3 1 4 15 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 85 87 76 61 61 57 57 68 83 78 87 74 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 79 79 72 56 39 37 43 32 39 65 74 83 58 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 82 81 78 62 46 42 45 38 48 76 79 89 64 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 26 14 0 0 0 0 0 0 0 5 14 86 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 4 1 0 0 0 0 5 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 7 8 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 5 24 31 31 9 0 0 0 100 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 28 27 1 0 0 0 0 0 0 21 25 131 DATE OF START AND END FREEZING START = 4 NOV. END = 2 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MEAN AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -1.7 -0.1 7.1 12.1 16.0 21.8 24.5 24.2 19.2 13.2 6.2 3.5 12.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.1 -6.2 -0.8 3.9 7.6 13.2 16.6 15.0 10.6 5.1 -0.3 -1.7 4.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.6 5.8 15.1 20.3 24.5 30.5 32.4 33.5 27.8 21.3 12.7 8.6 19.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.7 12.0 15.9 16.4 16.9 17.3 15.8 18.5 17.2 16.2 13.0 10.3 15.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.27 2.22 3.76 5.48 7.25 9.61 11.18 10.31 7.86 5.70 3.91 3.93 6.12 MEAN OF MIXING RATIO AT 09 GMT. 3.95 4.47 6.14 7.89 9.97 11.37 13.37 14.84 11.95 9.91 6.83 5.94 8.89 MEAN OF MIXING RATIO AT 15 GMT. 3.30 3.80 5.22 7.47 9.72 11.58 13.59 14.52 11.94 9.02 5.95 5.34 8.45 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.0 -10.0 -6.0 -0.5 2.0 7.5 12.5 11.5 7.5 -1.0 -12.0 -8.0 -18.0 DAY 29 1 12 14 6 2 3 28 17 30 20 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.6 13.5 22.0 23.5 30.0 36.0 36.0 36.5 32.0 27.0 21.5 14.0 36.5 DAY 12 28 31 4 30 23 7 3 3 6 6 28 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 8.0 9.4 15.2 26.0 3.0 6.0 6.0 2.5 4.5 14.0 21.0 26.0 DAY 24 15 10 8 3 12 19 12 20 26 23 5 MONTHLY TOTAL PRECIPITATION IN MM. 18.2 15.6 42.0 32.8 57.0 3.0 7.6 6.0 5.0 7.0 32.0 70.7 296.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 25.5 31.3 6.3 36.9 NO. OF DAYS WITH PRECIPITATION. 3 4 7 5 5 1 2 1 3 2 5 9 47 NO. OF DAYS PRECIPITATION EQUAL 2 3 7 5 5 1 2 1 3 2 5 9 45 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 1 2 0 0 0 0 0 1 3 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 68 77 71 68 61 66 70 72 76 76 87 72 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 72 72 58 50 50 40 41 43 47 56 67 79 56 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 76 70 59 59 44 45 46 55 67 75 87 63 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 25 5 0 0 0 0 0 0 0 5 9 68 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 2 0 0 0 0 2 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 6 0 0 0 0 0 0 0 0 0 1 0 7 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 17 26 29 8 0 0 0 82 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 22 2 0 0 0 0 0 3 18 22 125 DATE OF START AND END FREEZING START = 21 OCT. END = 15 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MEAN AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -3.4 ***** 6.6 9.1 14.7 20.3 24.8 24.8 20.7 15.3 6.0 -1.5 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -8.6 ***** -1.2 3.6 6.5 11.3 17.2 16.0 10.8 6.5 0.2 -5.6 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.8 ***** 14.5 14.6 22.8 29.2 32.5 33.6 30.5 23.8 11.8 2.7 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.4 ***** 15.7 11.0 16.3 17.9 15.3 17.6 19.7 17.3 11.6 8.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.27 ***** 3.80 5.58 5.92 7.40 6.47 5.80 3.82 3.98 4.09 3.09 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.81 ***** 4.93 6.62 7.04 8.65 8.31 5.42 4.66 5.18 6.39 4.65 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.20 ***** 5.14 6.72 7.61 9.43 7.93 5.95 4.73 5.15 5.47 3.98 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 ***** -9.0 -2.5 2.0 5.5 13.5 12.4 7.0 2.0 -5.0 -16.0 ****** DAY 26 ** 1 1 14 7 1 30 15 31 30 14 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 ***** 21.0 23.0 29.0 34.0 35.5 37.5 34.5 28.5 19.0 10.5 ****** DAY 1 ** 27 28 28 29 14 10 3 1 11 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 28.0 ***** 21.0 41.5 14.5 0.0 2.0 0.0 0.0 16.4 19.7 57.4 ****** DAY 7 ** 18 19 3 ** 24 ** ** 31 1 9 MONTHLY TOTAL PRECIPITATION IN MM. 77.0 ***** 60.2 155.8 18.0 0.0 2.0 0.0 0.0 28.6 55.1 134.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 25.8 32.7 0.4 41.1 NO. OF DAYS WITH PRECIPITATION. 8 *** 10 14 2 0 1 0 0 3 9 12 *** NO. OF DAYS PRECIPITATION EQUAL 8 *** 10 14 2 0 1 0 0 2 9 11 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 *** 2 6 1 0 0 0 0 2 1 4 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 71 *** 76 83 67 58 39 39 35 51 80 87 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 79 *** 50 62 37 31 25 15 15 26 63 85 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 *** 58 67 45 39 26 18 19 34 73 88 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 *** 10 0 0 0 0 0 0 0 5 17 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 3 1 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 15 *** 0 0 0 0 0 0 0 0 0 6 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 13 29 31 18 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 *** 18 5 0 0 0 0 0 0 15 26 *** DATE OF START AND END FREEZING START = 5 NOV. END = 14 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MEAN AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -1.6 -1.3 3.5 11.7 14.2 20.8 26.1 25.1 19.2 14.3 5.5 0.6 11.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.7 -6.5 -2.1 5.0 6.5 12.4 18.1 17.0 10.2 6.1 -0.3 -4.4 4.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.9 3.8 9.0 18.2 21.9 29.3 34.1 33.2 28.2 22.5 11.3 5.2 18.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.6 10.3 11.1 13.2 15.4 16.9 16.0 16.2 18.0 16.4 11.6 9.6 13.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.84 2.70 3.56 5.21 5.57 6.58 7.81 7.42 3.96 4.65 4.05 3.21 4.80 MEAN OF MIXING RATIO AT 09 GMT. 3.98 4.40 5.14 5.60 5.33 5.03 6.45 7.43 3.94 5.68 6.34 4.86 5.35 MEAN OF MIXING RATIO AT 15 GMT. 3.56 3.93 4.55 5.90 5.97 5.59 6.98 8.49 4.24 5.53 5.64 4.17 5.38 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -14.5 -14.0 -2.0 1.0 6.0 11.5 12.5 7.0 2.0 -7.0 -15.0 -15.0 DAY 21 7 1 2 9 4 2 23 21 23 23 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.0 8.5 16.0 26.0 26.0 34.0 36.5 36.5 32.5 26.5 16.5 13.0 36.5 DAY 13 3 12 6 16 23 10 12 10 1 6 18 24 HOUR MAXIMUM PRECIPITATION IN MM. 23.0 23.8 16.0 28.5 13.0 0.0 0.0 0.0 0.0 53.2 11.4 22.0 53.2 DAY 16 4 26 16 29 ** ** ** ** 29 11 27 MONTHLY TOTAL PRECIPITATION IN MM. 68.4 101.6 90.9 88.1 17.5 0.0 0.0 0.0 0.0 89.8 34.2 62.6 553.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 47.2 19.1 0.0 33.7 NO. OF DAYS WITH PRECIPITATION. 6 9 11 8 3 0 0 0 0 6 7 10 60 NO. OF DAYS PRECIPITATION EQUAL 6 9 11 8 3 0 0 0 0 6 7 10 60 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 5 5 3 1 0 0 0 0 2 1 2 22 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 81 79 72 65 53 44 45 39 61 80 80 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 73 79 65 42 30 18 17 21 15 31 67 76 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 83 75 51 38 23 20 27 21 41 75 80 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 18 5 0 0 0 0 0 0 0 6 16 66 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 5 1 0 0 0 0 6 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 8 3 1 0 0 0 0 0 0 0 0 2 14 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 16 31 29 11 0 0 0 87 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 3 0 0 0 0 0 0 15 23 122 DATE OF START AND END FREEZING START = 4 NOV. END = 30 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MEAN AND EXTREMES FOR THE PERIOD 1972 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. -3.6 -2.2 4.0 10.2 14.8 20.8 24.5 24.0 18.8 12.4 5.7 -0.0 10.8 SD OF MEAN DAILY TEMPERATURE IN C. 3.58 3.60 1.87 1.12 1.50 1.17 1.01 1.78 1.26 1.23 1.40 2.95 1.87 AVERAGE OF MINIMUM TEMPERATURE IN C. -9.3 -8.0 -2.1 3.2 7.1 12.2 16.5 15.7 9.7 4.3 -1.0 -5.5 3.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.0 3.6 10.1 17.3 22.5 29.3 32.6 32.3 28.0 20.5 12.3 5.4 18.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.3 11.6 12.2 14.2 15.4 17.1 16.1 16.5 18.2 16.2 13.3 10.9 14.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.34 2.54 3.70 4.92 6.27 7.02 7.75 7.20 5.54 4.55 3.67 2.88 4.86 MEAN OF MIXING RATIO AT 09 GMT. 3.85 4.10 4.82 5.37 6.63 7.00 8.42 8.08 6.92 6.03 5.10 4.32 5.88 MEAN OF MIXING RATIO AT 15 GMT. 3.21 3.57 4.57 5.27 6.64 7.03 8.30 7.87 6.68 5.64 4.80 3.83 5.61 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -34.0 -29.2 -19.0 -9.5 -3.0 3.0 5.0 -1.0 0.0 -4.0 -12.0 -25.2 -34.0 YEAR - DAY 72-25 74- 5 76- 3 81- 2 84- 2 95- 9 72-31 72-26 72- 2 84-21 1-20 74-24 72-25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 16.5 22.0 27.0 33.0 37.0 41.0 38.0 34.5 28.5 22.0 20.0 41.0 YEAR - DAY 87-31 87- 3 1-31 85-18 99-31 89-30 76-31 83- 4 84- 2 2- 1 72- 1 98-10 76-31 24 HOUR MAXIMUM PRECIPITATION IN MM. 62.0 76.0 66.0 75.0 98.0 30.0 18.5 16.0 2.5 53.2 99.0 60.0 99.0 YEAR - DAY 72- 7 72-19 72-31 72-23 72- 2 72- 8 99-15 98- 2 82-30 3-29 72- 4 72-12 72- 4 MONTHLY TOTAL PRECIPITATION IN MM. 46.0 45.6 63.9 56.8 47.0 5.8 2.5 2.3 0.4 27.4 37.9 49.4 385.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 40.4 28.5 1.4 29.8 NO. OF DAYS WITH PRECIPITATION. 7 7 9 7 5 1 1 0 0 4 5 7 53 NO. OF DAYS PRECIPITATION EQUAL 7 7 8 7 5 1 1 0 0 4 5 7 52 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 2 2 1 0 0 0 0 1 1 2 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 78 80 71 66 52 45 45 52 63 74 78 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 78 75 61 42 37 26 25 25 27 37 53 71 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 78 68 49 44 30 29 28 34 46 63 76 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 20 9 0 0 0 0 0 0 0 6 18 77 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 1 0 0 0 0 4 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 11 7 1 0 0 0 0 0 0 0 0 5 24 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 14 27 26 9 0 0 0 77 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 27 21 5 0 0 0 0 0 2 19 27 130 DATE OF START AND END FREEZING START = 26 AUG. END = 20 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION DARGAZIN-HAMEDAN LATITUDE 35 21 N DATA PROCESSING CENTER LONGITUDE 49 4 E ELEVATION 1870 MET. MEAN AND EXTREMES FOR THE PERIOD 1972 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. -3.6 -2.1 4.0 10.9 16.1 22.6 26.1 25.3 20.0 13.0 5.9 -0.1 11.5 AVERAGE DEW POINT TEMPERATURE. IN C. -6.8 -5.7 -1.8 0.6 4.0 5.1 7.3 6.4 3.5 1.1 -1.4 -4.4 0.7 AVERAGE OF MIXING RATIO IN G/KG 3.15 3.40 4.36 5.18 6.51 7.01 8.15 7.71 6.38 5.40 4.52 3.67 5.45 AVERAGE OF VAPOUR PRESSURE HPA 4.05 4.38 5.62 6.71 8.44 9.13 10.61 10.04 8.29 7.00 5.84 4.73 7.07 AVERAGE OF SATURATION DEFICIT IN HPA 1.14 1.42 3.14 7.15 10.92 19.76 24.69 23.85 16.81 9.14 4.09 1.83 10.33 AVERAGE RELATIVE HUMIDITY IN PERCENT 78 77 69 54 49 36 33 33 37 49 63 75 54 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 87 86 83 73 67 52 46 45 52 65 76 84 68 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 70 67 58 40 36 25 24 24 26 36 51 66 44 NO. OF DAYS PRECIPITATION EQUAL 3 3 5 4 3 0 0 0 0 2 2 3 25 OR MORE THAN 5 MM.