IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 16.6 17.9 9.9 4.7 2.9 -1.0 ****** 1971 -5.6 -0.9 4.3 7.6 12.3 16.4 17.9 14.9 9.4 4.0 3.7 1.6 7.1 1972 -4.3 -8.9 3.1 6.9 9.0 14.2 16.3 12.9 8.5 6.2 3.3 -2.7 5.4 1973 -6.5 1.1 3.2 9.3 11.4 17.2 ****** 17.3 8.5 5.3 2.3 -3.2 ****** 1974 -4.3 -3.8 3.2 7.9 12.5 15.2 ****** 14.8 10.4 2.0 2.3 -2.8 ****** 1975 -5.5 ****** 3.0 6.7 10.1 15.8 18.4 15.8 12.1 5.1 ****** ****** ****** 1976 1.4 -0.3 1.0 9.1 14.8 15.9 19.0 16.9 10.3 6.2 -2.8 -3.4 7.4 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 -4.3 -0.3 3.3 8.8 10.6 12.6 15.6 13.6 9.4 2.4 -0.9 0.9 6.0 1979 -2.6 -3.0 ****** 9.2 7.6 12.8 ****** 13.2 11.6 ****** 3.2 -0.9 ****** 1980 -5.2 -3.6 3.0 6.7 11.7 9.3 15.0 17.8 12.0 7.1 4.9 -2.0 6.4 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 ****** ****** 4.5 7.8 ****** 16.7 20.3 19.0 11.0 3.7 ****** ****** ****** 1985 ****** 1.6 ****** 7.9 12.1 18.1 19.2 16.1 10.7 ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** 19.8 16.3 12.3 9.1 4.6 -1.0 ****** 1987 ****** 0.9 6.3 7.8 11.4 13.7 15.6 16.1 12.8 ****** 4.1 1.1 ****** 1988 -0.2 -0.7 2.2 7.0 11.1 13.4 16.0 14.8 10.5 4.3 2.9 1.5 6.9 1989 -5.4 -4.4 2.3 4.8 8.7 15.5 16.9 14.9 11.3 6.3 2.8 1.9 6.3 1990 -2.4 -1.0 0.9 5.9 12.2 15.9 16.2 16.0 11.0 7.0 2.5 ****** ****** 1991 ****** ****** 0.6 4.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1994 -0.7 ****** 2.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1995 ****** ****** ****** ****** 11.2 15.4 16.8 14.7 ****** 7.8 2.4 -2.3 ****** 1996 -5.8 -1.7 1.1 4.3 10.1 13.9 15.5 16.5 13.8 9.2 0.1 -2.0 6.3 1997 -5.6 -3.9 -0.3 2.6 ****** ****** 12.8 13.7 10.4 6.1 -0.0 -5.2 ****** 1998 -7.2 -6.1 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** 7.9 ****** ****** ****** 2000 ****** ****** -1.2 8.8 11.3 17.4 15.8 16.5 11.8 6.7 -0.3 -6.5 ****** 2001 -13.0 ****** 0.9 6.6 11.0 14.8 16.3 15.4 13.7 10.2 -0.1 -2.9 ****** 2002 -9.1 -3.5 0.6 5.6 12.0 15.5 16.2 16.1 14.7 11.3 6.8 -10.1 6.3 2003 -8.1 -3.5 0.2 3.4 6.7 14.0 17.0 16.6 12.7 6.1 1.8 -4.4 5.2 MEAN -5.0 -2.3 2.1 6.8 10.9 14.9 16.8 15.7 11.2 6.3 2.2 -2.2 6.5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 29.7 31.0 24.1 22.0 19.0 12.0 ****** 1971 7.7 10.8 17.3 20.4 26.8 29.6 29.6 28.7 23.1 20.9 16.7 12.7 20.4 1972 3.8 2.5 12.5 20.3 22.9 29.2 28.7 25.8 25.5 22.6 17.3 6.9 18.2 1973 3.5 12.6 14.9 22.6 27.2 31.2 ****** 29.3 25.5 23.3 18.0 10.4 ****** 1974 4.1 4.3 15.0 20.6 25.8 29.9 ****** 28.2 26.7 17.6 17.3 8.4 ****** 1975 5.4 ****** 13.4 18.9 24.6 29.8 31.7 28.7 26.2 19.5 ****** ****** ****** 1976 12.7 8.9 9.2 19.6 26.8 30.1 31.2 29.3 26.6 22.7 12.0 9.2 19.9 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 6.1 9.5 13.6 23.0 25.6 29.3 32.1 29.4 25.8 21.1 14.1 14.2 20.3 1979 8.6 7.2 ****** 23.6 23.0 28.2 ****** 28.0 27.4 ****** 16.9 11.0 ****** 1980 4.5 8.9 12.3 17.7 24.5 29.8 28.8 28.8 26.8 23.4 19.4 14.1 19.9 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 7.0 3.2 15.9 20.7 ****** 26.6 29.5 29.7 22.9 18.2 17.2 5.7 ****** 1985 8.7 13.8 13.8 20.6 23.8 29.1 29.3 26.1 24.6 ****** ****** 8.1 ****** 1986 8.9 7.6 10.9 18.5 25.4 27.9 29.2 26.4 24.2 23.0 14.9 7.3 18.7 1987 ****** 12.2 16.3 21.4 25.3 27.0 28.7 28.6 25.8 19.8 17.3 14.4 ****** 1988 10.0 9.8 13.8 20.9 27.0 30.9 30.0 27.3 25.6 20.6 18.0 11.5 20.4 1989 4.6 5.2 13.5 17.9 21.9 29.3 29.8 27.4 27.0 21.2 16.1 13.1 18.9 1990 7.0 8.2 15.7 19.2 27.7 28.1 28.8 30.6 25.4 24.5 17.7 ****** ****** 1991 10.3 8.1 12.6 20.8 25.5 31.3 30.1 29.6 27.0 18.4 15.2 10.1 19.9 1992 ****** ****** ****** ****** 23.5 31.9 30.3 24.4 22.5 21.2 17.9 11.7 ****** 1993 4.2 7.0 15.2 22.0 25.9 29.4 29.7 28.8 ****** ****** ****** ****** ****** 1994 8.9 ****** 14.5 20.2 ****** ****** 29.9 29.7 20.4 20.7 19.2 10.8 ****** 1995 9.1 9.6 14.0 ****** 24.6 28.6 30.7 27.7 ****** 20.1 16.6 7.0 ****** 1996 2.8 7.9 11.9 16.4 22.2 30.3 29.8 29.5 27.8 21.6 11.9 12.1 18.7 1997 9.1 11.3 12.8 17.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1998 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 13.0 ****** 1999 10.6 12.7 13.2 18.9 28.2 30.8 30.3 29.8 27.6 23.1 13.2 13.1 21.0 2000 8.7 ****** 13.4 27.0 29.5 30.4 31.0 31.0 26.4 20.9 11.5 10.8 ****** 2001 4.1 ****** 14.6 24.1 29.2 30.4 30.8 30.0 29.3 25.5 16.5 11.5 ****** 2002 5.5 10.6 13.9 19.8 28.3 30.5 31.9 31.1 30.4 25.6 20.2 10.4 21.5 2003 8.3 10.5 13.7 19.2 23.1 30.2 31.4 31.6 26.9 22.7 15.6 10.3 20.3 MEAN 7.1 8.8 13.8 20.4 25.5 29.6 30.1 28.8 25.8 21.6 16.4 10.8 19.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 13.1 13.1 14.2 17.3 16.1 13.0 ****** 1971 13.3 11.7 13.0 12.8 14.5 13.2 11.7 13.8 13.7 16.9 13.0 11.1 13.2 1972 8.1 11.4 9.4 13.4 13.9 15.0 12.4 12.9 17.0 16.4 14.0 9.6 12.8 1973 10.0 11.5 11.7 13.3 15.8 14.0 ****** 12.0 17.0 18.0 15.7 13.6 ****** 1974 8.4 8.1 11.8 12.7 13.3 14.7 ****** 13.4 16.3 15.6 15.0 11.2 ****** 1975 10.9 ****** 10.4 12.2 14.5 14.0 13.3 12.9 14.1 14.4 ****** ****** ****** 1976 11.3 9.2 8.2 10.5 12.0 14.2 12.2 12.4 16.3 16.5 14.8 12.6 12.5 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 10.4 9.8 10.3 14.2 15.0 16.7 16.5 15.8 16.4 18.7 15.0 13.3 14.3 1979 11.2 10.2 ****** 14.4 15.4 15.4 ****** 14.8 15.8 ****** 13.7 11.9 ****** 1980 9.7 12.5 9.3 11.0 12.8 20.5 13.8 11.0 14.8 16.3 14.5 16.1 13.5 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 ****** ****** 11.4 12.9 ****** 9.9 9.3 10.7 11.9 14.5 ****** ****** ****** 1985 ****** 12.2 ****** 12.7 11.7 11.0 10.1 10.0 13.9 ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** 9.4 10.1 11.9 13.9 10.3 8.2 ****** 1987 ****** 11.3 10.0 13.6 13.8 13.3 13.1 12.5 13.0 ****** 13.1 13.3 ****** 1988 10.2 10.5 11.6 13.9 15.9 17.5 14.0 12.5 15.1 16.3 15.1 10.0 13.5 1989 10.0 9.6 11.2 13.1 13.2 13.7 12.9 12.5 15.7 14.9 13.3 11.2 12.6 1990 9.4 9.2 14.8 13.3 15.5 12.2 12.6 14.6 14.4 17.5 15.2 ****** ****** 1991 ****** ****** 12.0 16.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1993 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1994 9.6 ****** 11.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1995 ****** ****** ****** ****** 13.4 13.2 13.9 13.0 ****** 12.3 14.2 9.3 ****** 1996 8.6 9.6 10.8 12.1 12.1 16.4 14.3 13.0 14.0 12.4 11.8 14.1 12.4 1997 14.7 15.2 13.1 14.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1998 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** 15.2 ****** ****** ****** 2000 ****** ****** 14.6 18.2 18.2 13.0 15.2 14.5 14.6 14.2 11.8 17.3 ****** 2001 17.1 ****** 13.7 17.5 18.2 15.6 14.5 14.6 15.6 15.3 16.6 14.4 ****** 2002 14.6 14.1 13.3 14.2 16.3 15.0 15.7 15.0 15.7 14.3 13.4 20.5 15.2 2003 16.4 14.0 13.5 15.8 16.4 16.2 14.4 15.0 14.2 16.6 13.8 14.7 15.1 MEAN 11.3 11.2 11.7 13.7 14.6 14.5 13.1 13.0 14.8 15.6 14.0 12.9 13.4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 6.39 6.44 4.36 3.60 2.74 2.72 ****** 1971 1.96 2.90 3.19 4.84 4.83 5.78 6.51 5.42 4.18 3.23 4.00 3.59 4.20 1972 2.83 2.14 4.61 5.47 5.98 8.72 7.11 5.87 4.64 3.72 3.94 3.37 4.87 1973 2.81 4.13 4.30 5.05 5.81 6.95 ****** 6.35 5.30 4.54 3.54 3.18 ****** 1974 3.24 3.17 4.67 5.01 6.47 7.15 ****** 5.92 5.56 3.83 3.67 3.00 ****** 1975 2.74 ****** 4.44 5.29 6.01 6.69 8.19 7.89 7.55 5.84 ****** ****** ****** 1976 4.24 3.62 4.34 7.41 11.41 7.59 9.24 8.35 6.84 5.62 3.25 3.16 6.26 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 2.65 4.00 4.71 6.36 6.94 8.10 7.81 6.20 6.40 4.70 3.71 3.94 5.46 1979 3.26 3.08 ****** 6.83 6.29 8.77 ****** 6.03 5.84 ****** 4.07 3.35 ****** 1980 2.63 3.53 4.87 6.06 8.28 6.73 8.35 7.81 5.93 4.24 3.73 3.62 5.48 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 2.91 2.70 4.71 5.26 ****** 5.41 5.14 6.47 5.31 2.79 3.74 ****** ****** 1985 4.20 3.66 4.10 5.28 5.78 7.50 8.50 8.27 5.55 ****** ****** 3.69 ****** 1986 3.15 3.66 4.05 6.67 8.36 7.63 8.86 7.72 5.52 5.71 4.75 3.99 5.84 1987 ****** 3.82 5.37 6.41 7.50 7.79 8.98 8.54 7.60 5.20 4.51 3.89 ****** 1988 3.59 3.85 4.46 6.78 7.62 8.79 9.13 7.52 6.38 4.68 4.12 3.96 5.91 1989 2.92 3.53 4.93 5.15 6.71 8.58 9.15 8.76 7.05 5.78 4.84 4.65 6.01 1990 3.46 4.08 4.68 6.27 7.51 8.79 8.76 9.24 6.17 6.25 3.72 ****** ****** 1991 4.56 3.66 4.52 6.13 7.51 10.11 10.67 9.58 7.95 5.16 5.01 4.24 6.59 1992 ****** ****** ****** ****** 6.89 10.80 9.80 6.73 6.32 4.00 4.42 4.38 ****** 1993 2.36 3.63 4.62 7.14 7.72 8.77 10.07 10.24 ****** ****** 3.26 3.91 ****** 1994 3.63 ****** 4.29 4.93 ****** ****** 7.25 6.57 5.50 5.44 4.68 2.44 ****** 1995 2.20 2.84 3.59 5.12 6.56 8.01 8.61 7.27 ****** 5.74 3.86 3.06 ****** 1996 2.37 3.44 4.47 6.02 7.60 9.48 10.38 9.91 8.81 6.61 3.81 3.35 6.35 1997 2.37 2.72 3.95 4.85 ****** ****** 9.70 10.89 8.64 6.82 4.11 2.86 ****** 1998 3.07 3.03 5.05 7.08 7.80 9.64 9.94 9.26 7.37 5.60 4.14 2.93 6.24 1999 1.70 2.91 3.91 5.61 7.89 8.80 9.36 7.54 6.59 5.47 3.33 0.93 5.34 2000 2.04 ****** 3.54 6.23 8.03 7.47 7.84 8.11 7.03 5.10 4.22 2.24 ****** 2001 1.31 ****** 4.31 5.79 7.69 9.13 9.64 9.07 7.88 5.39 3.52 3.12 ****** 2002 1.62 3.34 4.21 5.71 7.68 8.70 8.84 8.96 7.16 6.76 5.24 2.67 5.91 2003 2.40 3.42 4.44 5.70 7.18 10.15 10.52 10.10 7.34 5.63 4.61 3.23 6.23 MEAN 2.83 3.37 4.39 5.88 7.24 8.23 8.70 7.90 6.46 5.10 4.02 3.32 5.61 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 6.22 6.91 4.68 4.87 3.55 2.86 ****** 1971 2.48 2.74 3.45 4.67 5.35 5.53 6.11 6.34 4.91 4.50 4.68 4.12 4.58 1972 3.83 3.64 5.20 6.35 6.97 9.86 7.60 5.80 5.42 5.45 4.80 3.61 5.71 1973 3.68 5.33 5.02 5.58 7.33 7.65 ****** 6.30 5.48 5.53 4.54 3.67 ****** 1974 3.99 3.98 5.59 5.69 6.50 7.85 ****** 6.86 7.81 5.15 5.26 4.21 ****** 1975 3.89 ****** 5.23 5.70 6.33 7.22 7.62 7.89 8.78 8.42 ****** ****** ****** 1976 5.05 4.86 5.35 8.74 13.57 7.52 11.37 9.25 9.27 7.26 4.47 3.77 7.54 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 4.00 5.01 5.58 6.46 6.96 6.83 8.44 6.18 6.73 6.09 5.37 5.52 6.10 1979 4.45 4.12 ****** 7.15 6.93 7.82 ****** 6.35 6.70 ****** 5.03 3.82 ****** 1980 3.85 5.04 5.85 6.74 8.83 6.70 8.56 8.24 7.67 5.81 5.17 5.47 6.49 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 3.67 3.56 5.08 5.90 ****** 5.96 4.46 7.21 6.06 4.44 4.76 3.91 ****** 1985 4.77 4.06 5.59 6.98 7.11 8.40 9.64 8.75 ****** ****** ****** 4.88 ****** 1986 4.29 4.73 5.32 9.39 11.72 7.90 10.31 5.81 6.18 6.98 5.55 4.45 6.88 1987 ****** 4.77 5.47 6.93 7.50 6.51 8.60 6.64 ****** 6.61 5.59 4.71 ****** 1988 4.36 4.81 5.21 8.38 7.36 11.46 11.35 6.28 7.09 6.27 5.82 4.62 6.92 1989 3.59 4.03 5.73 6.11 8.02 10.18 9.67 7.18 6.85 6.11 5.64 5.17 6.52 1990 3.93 4.56 4.73 5.20 7.17 7.56 8.93 8.95 5.69 7.00 4.75 ****** ****** 1991 5.17 3.99 5.98 6.74 8.13 8.72 10.04 8.20 7.34 4.86 5.51 6.00 6.72 1992 ****** ****** ****** ****** 9.83 12.25 10.95 7.13 5.63 6.15 4.13 4.84 ****** 1993 4.03 5.18 7.65 9.42 9.36 8.83 10.75 10.25 ****** ****** 6.07 5.82 ****** 1994 4.06 ****** 5.49 7.16 ****** ****** 9.95 9.45 8.73 8.65 7.40 4.82 ****** 1995 3.81 4.16 5.57 7.87 9.08 11.17 11.68 10.19 ****** 9.28 7.16 4.84 ****** 1996 4.14 5.23 6.98 7.89 9.72 12.67 13.10 12.79 11.64 9.45 5.95 5.76 8.78 1997 4.63 5.42 6.07 7.77 ****** ****** 14.93 14.77 11.63 10.42 6.41 5.66 ****** 1998 5.18 5.40 8.00 10.52 10.59 10.77 11.27 10.01 9.43 8.50 7.31 7.34 8.69 1999 5.94 6.52 6.92 10.17 10.16 11.85 12.02 9.96 9.02 8.48 6.27 5.69 8.58 2000 5.64 ****** 6.69 9.72 11.06 11.30 11.45 11.01 10.01 9.33 6.26 5.63 ****** 2001 4.31 ****** 5.97 10.18 9.05 11.65 11.56 10.91 10.66 9.15 5.18 5.06 ****** 2002 3.94 5.75 6.69 9.01 10.35 12.07 13.81 12.77 11.64 8.30 9.13 5.68 9.10 2003 5.43 5.70 6.52 9.60 11.59 15.05 14.01 13.86 11.27 10.07 7.48 6.13 9.73 MEAN 4.31 4.70 5.82 7.58 8.72 9.31 10.17 8.75 7.94 7.16 5.69 4.94 7.08 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 6.32 5.89 4.25 4.95 3.07 2.68 ****** 1971 2.23 3.02 3.55 5.03 4.94 4.92 6.10 5.57 4.58 4.65 4.52 3.80 4.41 1972 3.53 2.74 5.43 6.34 6.67 8.70 7.00 5.41 5.51 5.21 4.71 4.00 5.44 1973 3.37 5.12 5.30 5.67 6.24 6.78 ****** 6.12 5.41 5.35 3.84 3.60 ****** 1974 3.86 3.81 5.49 5.61 6.48 7.15 ****** 6.14 6.89 4.88 4.41 3.96 ****** 1975 3.46 ****** 4.94 5.78 6.47 6.39 8.02 8.39 8.64 7.88 ****** ****** ****** 1976 4.75 4.68 4.78 8.33 10.97 7.71 10.62 9.09 8.48 7.15 4.08 3.79 7.04 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 3.16 4.37 5.19 6.63 7.79 8.15 7.77 6.36 7.03 5.97 4.80 4.54 5.98 1979 3.87 3.71 ****** 7.66 7.51 8.92 ****** 6.20 6.44 ****** 4.57 3.66 ****** 1980 3.04 4.11 5.38 6.38 8.55 7.69 8.51 8.32 7.23 5.66 4.81 4.25 6.16 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 3.71 3.13 4.84 5.72 ****** 5.38 4.23 6.29 5.49 3.82 4.48 ****** ****** 1985 4.76 4.04 4.99 6.00 6.40 7.51 8.79 8.01 6.82 ****** ****** 4.18 ****** 1986 3.95 4.38 4.34 7.11 8.85 7.29 9.32 7.37 6.53 6.98 4.89 4.03 6.25 1987 ****** 4.41 6.09 7.29 8.33 7.20 8.94 8.86 9.05 6.14 5.32 4.34 ****** 1988 4.19 4.35 5.50 7.82 8.55 9.77 9.61 7.55 6.82 6.58 5.59 4.37 6.72 1989 3.48 3.66 5.68 4.94 6.93 8.91 9.02 8.50 6.79 7.01 5.33 4.93 6.26 1990 3.83 4.51 5.38 7.09 7.46 9.52 8.91 8.70 7.83 6.76 4.80 ****** ****** 1991 4.95 3.91 5.42 6.32 7.04 8.00 9.57 8.69 7.65 5.74 5.58 4.86 6.48 1992 ****** ****** ****** ****** 8.60 11.07 10.22 7.77 6.80 6.06 5.85 4.92 ****** 1993 3.30 4.42 6.02 8.34 8.29 8.66 9.65 9.09 ****** ****** 5.14 4.73 ****** 1994 3.97 ****** 4.77 5.51 ****** ****** 8.05 8.18 6.84 6.97 5.75 3.95 ****** 1995 3.56 3.78 4.81 6.20 7.84 9.49 9.60 9.19 ****** 7.92 6.07 4.35 ****** 1996 3.50 4.49 5.81 7.06 8.60 10.57 11.07 11.01 10.17 8.38 5.18 4.76 7.55 1997 4.21 4.32 4.84 5.95 ****** ****** 11.72 11.94 9.94 9.19 5.66 5.14 ****** 1998 4.39 4.33 6.91 9.27 9.39 9.61 10.02 9.00 8.76 7.61 6.16 5.81 7.61 1999 4.89 5.61 5.67 8.45 8.72 9.86 10.39 8.48 7.61 7.15 4.98 4.40 7.18 2000 4.56 ****** 5.08 7.54 9.20 9.02 8.98 9.13 8.48 7.42 5.58 5.01 ****** 2001 3.29 ****** 4.88 8.32 7.45 9.69 9.52 8.89 8.92 7.87 4.59 4.41 ****** 2002 3.38 4.63 5.29 7.29 8.94 9.36 10.42 10.09 9.16 7.50 7.42 4.26 7.31 2003 3.97 4.82 5.17 7.62 9.77 11.72 11.66 10.62 8.90 8.16 5.94 4.89 7.77 MEAN 3.83 4.19 5.25 6.84 7.93 8.49 9.04 8.17 7.40 6.63 5.12 4.36 6.43 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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 1970 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 13.0 1 14.0 29 2.6 22 -5.0 24 -5.0 15 -8.5 17 ***** 1971 -14.0 26 -12.0 3 -3.0 2 1.2 11 5.0 1 12.0 2 13.0 5 10.5 9 1.0 29 -4.0 20 -1.0 2 -7.0 22 -14.0 1972 -13.5 31 -17.6 1 -5.5 4 1.0 17 2.2 25 10.0 19 12.0 30 5.5 28 1.0 20 2.4 21 -5.0 22 -14.0 27 -17.6 1973 -14.0 26 -5.8 3 -7.0 11 1.5 12 6.8 15 12.4 3 ***** ** 11.0 28 -0.4 30 -2.0 1 -5.0 9 -10.0 25 ***** 1974 -11.0 5 -17.0 4 -6.0 7 0.0 13 6.0 1 10.5 25 ***** ** 10.0 17 6.5 22 -2.0 28 -2.0 17 -7.8 30 ***** 1975 -12.8 17 ***** ** -7.0 9 -2.2 4 3.0 5 7.0 10 12.0 30 10.0 23 7.0 22 -2.0 21 ***** ** ***** ** ***** 1976 -6.0 3 -3.2 19 -3.0 1 0.5 2 9.0 2 12.0 3 15.0 2 11.0 28 5.0 16 0.2 30 -11.0 15 -7.0 7 -11.0 1977 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1978 -10.8 13 -8.4 7 -3.0 17 0.4 17 5.0 6 8.0 8 11.6 4 8.2 23 3.0 22 0.0 5 -7.0 27 -5.4 25 -10.8 1979 -10.0 30 -7.4 13 ***** ** 1.4 30 3.4 13 7.0 29 ***** ** 9.0 5 4.0 28 ***** ** -2.0 22 -7.0 28 ***** 1980 -12.8 3 -14.0 5 -2.4 30 -2.0 8 5.8 6 5.0 15 7.4 2 14.0 19 3.6 12 3.6 28 -1.0 30 -6.0 28 -14.0 1981 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1982 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1983 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1984 ***** ** ***** ** 1.0 1 0.2 5 ***** ** 12.0 18 16.5 22 15.5 14 4.5 27 -2.5 23 ***** ** ***** ** ***** 1985 ***** ** -4.6 8 ***** ** 0.5 18 5.5 14 14.0 11 13.4 20 12.0 29 7.5 15 ***** ** ***** ** ***** ** ***** 1986 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 16.0 26 13.5 20 7.5 16 2.5 19 -4.0 23 -14.2 13 ***** 1987 ***** ** -4.5 15 0.5 31 0.8 14 4.5 7 8.5 21 10.5 5 11.5 30 7.0 24 ***** ** -5.5 30 -8.5 1 ***** 1988 -6.0 3 -9.5 8 -6.0 25 -2.5 4 5.0 5 11.0 7 12.0 25 10.5 27 3.0 26 -0.5 4 -4.0 27 -3.5 25 -9.5 1989 -11.0 31 -9.5 7 -1.5 9 0.0 1 -1.5 2 13.0 3 13.5 18 10.8 22 4.5 21 -1.0 16 -0.5 5 -4.0 23 -11.0 1990 -8.5 30 -8.0 1 -7.0 22 1.0 1 9.5 1 11.0 2 13.5 27 13.5 17 6.5 18 2.5 15 -1.0 16 ***** ** ***** 1991 ***** ** ***** ** -4.5 12 1.5 2 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1992 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1993 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1994 -6.0 10 ***** ** 0.5 6 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1995 ***** ** ***** ** ***** ** ***** ** 7.6 18 11.0 19 13.5 15 9.0 29 ***** ** 3.0 27 -7.6 28 -7.6 21 ***** 1996 -16.6 16 -8.0 26 -4.0 17 -5.0 4 4.0 4 12.0 3 13.0 16 14.0 20 10.0 29 5.0 4 -6.0 19 -10.0 7 -16.6 1997 -10.0 20 -10.5 11 -5.0 16 0.5 1 ***** ** ***** ** 10.5 14 11.5 15 7.5 5 4.0 23 -6.5 25 -11.0 26 ***** 1998 -12.0 18 -13.5 18 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1999 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 5.0 31 ***** ** ***** ** ***** 2000 ***** ** ***** ** -4.6 16 3.4 1 8.4 9 14.2 13 13.6 19 12.8 16 8.0 12 2.6 8 -6.0 17 -11.6 24 ***** 2001 -20.4 27 ***** ** -12.4 12 0.0 2 7.2 3 12.6 4 14.6 7 14.0 12 9.4 22 2.0 26 -6.6 20 -7.8 4 ***** 2002 -12.8 9 -12.6 2 -3.8 6 1.8 3 6.6 1 13.0 25 14.4 23 13.8 10 12.8 25 7.8 31 0.8 28 -17.2 25 -17.2 2003 -13.8 7 -7.6 8 -7.6 1 0.0 19 -8.8 1 9.2 12 14.2 7 14.2 28 4.8 30 4.0 3 -5.8 19 -17.8 13 -17.8 LOW. -20.4 27 -17.6 1 -12.4 12 -5.0 4 -8.8 1 5.0 15 7.4 2 5.5 28 -0.4 30 -5.0 24 -11.0 15 -17.8 13 -20.4 YEAR 2001 1972 2001 1996 2003 1980 1980 1972 1973 1970 1976 2003 2001 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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 1970 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 33.0 15 36.0 5 29.0 8 29.0 8 24.0 3 19.6 13 ***** 1971 17.0 5 16.8 22 26.0 29 27.6 24 33.0 24 32.6 22 34.2 11 31.2 5 31.0 1 28.0 6 23.0 4 19.0 10 34.2 1972 11.0 15 14.4 18 22.0 31 27.0 12 30.8 30 36.2 24 35.0 2 30.0 2 32.0 14 26.2 7 25.0 6 17.0 1 36.2 1973 10.8 29 19.2 21 23.4 22 30.0 27 35.0 31 41.0 30 ***** ** 33.0 4 31.6 3 30.0 31 25.0 1 16.0 18 ***** 1974 11.0 15 11.0 26 26.0 18 27.0 28 33.0 24 34.0 3 ***** ** 33.4 22 33.0 21 27.4 3 26.0 2 16.4 10 ***** 1975 15.2 18 ***** ** 26.0 21 27.0 17 29.8 29 34.8 23 34.5 5 33.4 16 34.0 11 31.0 4 ***** ** ***** ** ***** 1976 20.0 19 16.0 10 15.0 6 29.4 24 31.4 23 34.2 21 36.0 2 31.8 2 31.2 6 28.0 2 19.4 3 14.2 9 36.0 1977 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1978 11.0 19 18.0 21 20.6 13 28.4 29 32.0 11 37.0 23 37.0 14 32.2 3 28.4 9 27.2 3 26.4 11 22.4 12 37.0 1979 16.4 5 14.2 27 ***** ** 30.0 10 27.0 3 33.0 24 ***** ** 33.4 2 32.2 20 ***** ** 23.0 1 19.0 22 ***** 1980 11.4 20 16.4 15 20.2 18 26.2 11 30.8 20 39.0 11 34.0 12 31.8 26 31.2 30 31.2 1 25.0 10 22.0 9 39.0 1981 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1982 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1983 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1984 12.5 6 17.6 14 20.2 29 28.0 26 ***** ** 29.5 10 31.0 13 31.5 2 30.0 12 25.5 6 22.0 2 15.0 4 ***** 1985 13.5 23 22.0 26 24.5 20 28.5 24 29.0 22 34.0 8 34.5 28 29.0 1 29.0 27 ***** ** ***** ** 18.0 3 ***** 1986 14.0 13 15.5 28 19.5 12 25.0 19 30.5 27 30.0 13 31.0 17 30.0 2 28.0 29 30.0 6 22.5 10 12.0 24 31.0 1987 ***** ** 18.5 27 24.0 15 30.5 26 31.5 24 33.5 6 33.5 9 31.0 16 33.5 6 28.5 5 25.5 7 19.0 21 ***** 1988 15.0 31 16.5 3 23.0 21 27.0 15 34.0 29 39.0 23 34.0 13 30.0 30 33.5 6 26.0 22 23.5 10 17.0 7 39.0 1989 11.5 21 14.0 21 20.0 11 25.0 16 31.0 28 34.0 24 35.0 8 31.5 12 33.0 14 30.0 1 21.0 20 19.0 2 35.0 1990 13.5 24 15.0 20 25.0 15 27.5 29 34.5 24 32.0 14 32.5 29 33.0 15 28.0 1 27.0 31 25.0 1 ***** ** ***** 1991 15.0 30 16.5 27 18.5 26 27.0 25 36.0 31 34.0 4 35.0 7 34.0 5 31.0 17 21.5 19 18.0 8 16.5 14 36.0 1992 ***** ** ***** ** ***** ** ***** ** 29.5 10 35.0 8 35.0 11 28.0 9 26.0 7 25.5 2 25.0 3 17.0 13 ***** 1993 12.5 27 14.0 22 23.0 21 29.0 22 33.5 23 34.5 18 32.0 17 31.0 1 ***** ** ***** ** ***** ** ***** ** ***** 1994 18.5 4 ***** ** 18.0 31 28.5 22 ***** ** ***** ** 32.0 13 32.0 3 27.0 20 25.0 1 25.0 17 18.0 3 ***** 1995 15.0 2 17.0 5 19.0 25 ***** ** 34.0 8 36.0 26 36.0 1 31.0 2 ***** ** 27.0 9 23.0 17 13.5 1 ***** 1996 11.0 3 13.0 1 18.0 28 28.5 25 28.0 18 34.0 5 33.0 8 34.0 8 33.5 10 27.0 28 19.0 9 18.0 28 34.0 1997 15.0 11 20.0 22 17.0 23 20.0 9 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1998 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 16.5 26 ***** 1999 15.0 7 16.0 12 22.0 28 23.0 17 31.5 12 38.0 26 34.5 8 32.5 9 31.0 1 28.0 12 19.0 5 15.5 5 38.0 2000 15.0 1 ***** ** 21.0 13 30.4 30 32.0 4 34.0 10 33.2 30 33.6 8 30.0 1 26.0 14 19.4 4 17.6 11 ***** 2001 11.2 6 ***** ** 19.6 22 29.2 28 37.0 9 35.2 9 32.8 16 32.8 26 32.6 13 29.2 5 28.0 4 14.8 21 ***** 2002 10.0 14 15.2 24 18.6 30 27.8 10 32.0 30 33.6 3 34.2 3 33.8 21 32.4 3 29.4 4 26.8 3 18.2 1 34.2 2003 13.8 12 13.8 26 17.4 24 26.2 11 29.6 31 33.8 4 36.0 2 34.6 3 30.4 13 27.6 19 26.8 2 18.0 19 36.0 HIG. 20.0 19 22.0 26 26.0 29 30.5 26 37.0 9 41.0 30 37.0 14 36.0 5 34.0 11 31.2 1 28.0 4 22.4 12 41.0 YEAR 1976 1985 1971 1987 2001 1973 1978 1970 1975 1980 2001 1978 1973 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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 1970 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 0.0 ** 0.0 ** 0.0 ** 6.0 26 0.0 ** 2.0 15 ***** 1971 0.0 ** 9.0 24 7.0 8 15.0 12 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.0 12 7.0 30 15.0 1972 12.0 20 23.0 11 27.0 11 3.5 2 3.0 10 3.0 27 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.0 6 27.0 1973 6.0 11 11.0 23 3.0 15 1.0 5 0.0 ** 0.0 ** ***** ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.0 31 ***** 1974 18.0 24 12.0 15 16.0 26 16.0 2 5.0 7 0.0 ** ***** ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 11.0 14 ***** 1975 11.0 22 ***** ** 13.0 19 12.0 23 2.0 10 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** ** ***** ** ***** 1976 5.0 20 10.0 10 15.0 12 15.0 24 3.0 3 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.0 28 5.0 28 15.0 1977 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1978 16.0 20 20.0 26 19.0 8 3.0 1 6.0 1 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.0 19 5.0 4 20.0 1979 12.0 23 9.0 16 ***** ** 15.0 29 7.0 16 0.0 ** ***** ** 0.0 ** 0.0 ** ***** ** 3.0 29 7.0 30 ***** 1980 13.2 18 11.0 26 12.0 21 1.0 30 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 29 2.0 26 13.2 1981 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1982 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1983 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1984 13.6 30 3.0 2 8.0 16 3.0 1 ***** ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 5.0 29 ***** 1985 14.0 18 3.0 2 5.0 21 9.0 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** ** ***** ** 17.0 6 ***** 1986 1.0 24 14.0 3 22.0 26 17.0 9 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.0 21 15.5 3 22.0 1987 ***** ** 7.0 18 15.0 27 8.0 4 5.0 30 0.0 ** 0.0 ** 0.0 ** 0.0 ** 5.0 27 0.0 ** 7.5 29 ***** 1988 6.0 20 3.5 4 23.0 24 10.0 29 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 23.0 20 23.0 1989 11.0 4 6.0 23 15.0 18 3.0 9 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 9.0 8 9.0 8 15.0 1990 12.0 30 18.0 11 6.0 27 11.0 12 5.0 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** ** ***** 1991 6.0 22 17.0 22 22.0 16 24.0 1 7.0 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 5 10.0 17 23.0 16 24.0 1992 ***** ** ***** ** ***** ** ***** ** 0.0 ** 5.0 1 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 9.0 5 ***** 1993 17.0 15 15.0 3 8.0 13 12.0 29 5.0 7 0.0 ** 0.0 ** 0.0 ** ***** ** ***** ** 10.0 8 0.0 ** ***** 1994 17.0 24 ***** ** 8.0 1 3.0 6 ***** ** ***** ** 0.0 ** 0.0 ** 0.0 ** 2.0 19 0.0 ** 9.0 5 ***** 1995 5.0 19 7.0 7 14.0 21 17.5 24 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** ** 4.0 23 0.0 ** 6.0 7 ***** 1996 10.0 13 13.0 5 25.0 5 1.0 16 2.0 12 0.0 ** 0.0 ** 0.0 ** 2.0 23 6.0 18 0.0 ** 6.0 16 25.0 1997 19.0 26 6.0 1 15.0 7 13.0 27 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.0 20 7.0 1 13.0 4 19.0 1998 10.0 14 14.0 19 12.0 23 9.0 1 3.0 17 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 14.0 1999 5.0 11 8.0 6 11.0 3 3.0 8 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 11.0 2000 6.0 31 ***** ** 5.0 25 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.0 6 17.0 7 18.0 27 ***** 2001 20.0 28 ***** ** 10.0 26 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.5 31 1.0 24 24.0 31 ***** 2002 16.0 12 13.0 15 6.0 21 24.0 14 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 11.0 17 14.5 12 24.0 2003 18.0 18 20.0 6 23.0 13 10.0 18 6.0 30 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 16 3.0 12 23.0 HIG. 20.0 28 23.0 11 27.0 11 24.0 1 7.0 16 5.0 1 0.0 ** 0.0 ** 2.0 23 7.0 6 17.0 7 24.0 31 27.0 YEAR 2001 1972 1972 1991 1979 1992 **** **** 1996 2000 2000 2001 1972 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1970 ****** ****** ****** ****** ****** ****** 0.0 0.0 0.0 6.0 0.0 2.0 ****** ***** ***** 0.0 100.0 1971 0.0 20.6 24.6 32.5 0.0 0.0 0.0 0.0 0.0 0.0 5.0 11.5 94.2 48.0 34.5 0.0 17.5 1972 41.0 55.5 65.5 11.0 11.5 3.0 0.0 0.0 0.0 0.0 0.0 9.0 196.5 82.4 13.0 0.0 4.6 1973 12.5 36.5 18.5 1.5 0.0 0.0 ****** 0.0 0.0 0.0 0.0 2.0 ****** 95.1 2.1 0.0 2.8 1974 67.0 54.0 50.0 38.5 5.0 0.0 ****** 0.0 0.0 0.0 0.0 13.0 ****** 75.2 19.1 0.0 5.7 1975 37.0 ****** 70.0 62.0 2.0 0.0 0.0 0.0 0.0 0.0 ****** ****** ****** 62.6 37.4 0.0 0.0 1976 12.0 46.5 95.0 113.0 5.0 0.0 0.0 0.0 0.0 0.0 7.0 17.0 295.5 51.9 39.9 0.0 8.1 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1978 61.0 94.0 27.0 7.0 6.0 0.0 0.0 0.0 0.0 0.0 14.0 12.0 221.0 82.4 5.9 0.0 11.8 1979 47.0 18.0 ****** 30.0 12.0 0.0 ****** 0.0 0.0 ****** 5.0 17.0 ****** 50.4 32.6 0.0 17.1 1980 67.6 55.0 35.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 4.0 163.6 96.3 0.6 0.0 3.1 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1984 25.6 11.0 21.0 3.0 ****** 0.0 0.0 0.0 0.0 0.0 0.0 19.0 ****** 72.4 3.8 0.0 23.9 1985 31.0 3.0 7.0 14.0 0.0 0.0 0.0 0.0 0.0 ****** ****** 28.0 ****** 49.4 16.9 0.0 33.7 1986 1.0 41.0 110.0 46.5 0.0 0.0 0.0 0.0 0.0 0.0 14.5 32.5 245.5 61.9 18.9 0.0 19.1 1987 ****** 7.0 34.0 15.0 8.0 0.0 0.0 0.0 0.0 5.0 0.0 7.5 ****** 53.6 30.1 0.0 16.3 1988 16.0 11.5 65.0 20.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 56.0 168.5 54.9 11.9 0.0 33.2 1989 23.0 17.5 45.5 3.0 0.0 0.0 0.0 0.0 0.0 0.0 13.5 20.0 122.5 70.2 2.4 0.0 27.3 1990 55.6 105.0 17.0 33.0 11.0 0.0 0.0 0.0 0.0 0.0 0.0 ****** ****** 80.1 19.9 0.0 0.0 1991 15.0 42.5 76.0 38.0 12.0 0.0 0.0 0.0 0.0 1.0 10.0 38.0 232.5 57.4 21.5 0.0 21.1 1992 ****** ****** ****** ****** 0.0 5.0 0.0 0.0 0.0 0.0 0.0 36.0 ****** ***** 12.2 0.0 87.8 1993 62.0 61.0 28.0 35.0 12.0 0.0 0.0 0.0 ****** ****** 14.0 0.0 ****** 71.2 22.2 0.0 6.6 1994 36.0 ****** 33.0 3.0 ****** ****** 0.0 0.0 0.0 3.0 0.0 15.0 ****** 76.7 3.3 0.0 20.0 1995 7.0 14.0 28.0 40.5 0.0 0.0 0.0 0.0 ****** 6.0 0.0 15.0 ****** 44.3 36.7 0.0 19.0 1996 19.0 67.0 143.0 1.0 5.0 0.0 0.0 0.0 2.0 11.0 0.0 6.0 254.0 90.2 2.4 0.8 6.7 1997 33.0 9.0 70.0 67.0 0.0 0.0 0.0 0.0 0.0 6.0 11.5 43.0 239.5 46.8 28.0 0.0 25.3 1998 45.5 31.0 53.0 9.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 141.5 91.5 8.5 0.0 0.0 1999 22.0 46.0 36.5 6.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 110.5 94.6 5.4 0.0 0.0 2000 16.0 ****** 9.0 0.0 0.0 0.0 0.0 0.0 0.0 7.0 38.0 55.0 ****** 20.0 0.0 0.0 80.0 2001 21.0 ****** 21.5 0.0 0.0 0.0 0.0 0.0 0.0 2.5 1.0 48.0 ****** 45.2 0.0 0.0 54.8 2002 41.0 53.0 14.0 69.0 0.0 0.0 0.0 0.0 0.0 0.0 26.0 37.5 240.5 44.9 28.7 0.0 26.4 2003 40.0 29.0 46.0 18.0 12.0 0.0 0.0 0.0 0.0 0.0 8.0 5.0 158.0 72.8 19.0 0.0 8.2 MEAN 31.7 38.7 46.0 25.6 3.9 0.3 0.0 0.0 0.1 1.8 6.0 19.6 173.7 67.1 17.1 0.0 15.8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** 0 0 0 1 0 1 *** 1971 0 6 5 4 0 0 0 0 0 0 2 4 21 1972 8 5 8 5 6 1 0 0 0 0 0 2 35 1973 6 7 11 2 0 0 *** 0 0 0 0 1 *** 1974 7 13 7 7 1 0 *** 0 0 0 0 2 *** 1975 9 *** 9 11 1 0 0 0 0 0 *** *** *** 1976 3 12 10 15 2 0 0 0 0 0 1 4 47 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 7 9 3 3 1 0 0 0 0 0 3 4 30 1979 10 3 *** 3 3 0 *** 0 0 *** 2 4 *** 1980 8 7 6 1 0 0 0 0 0 0 1 2 25 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 4 5 6 1 *** 0 0 0 0 0 0 7 *** 1985 5 1 2 3 0 0 0 0 0 *** *** 5 *** 1986 1 7 11 4 0 0 0 0 0 0 4 5 32 1987 *** 1 4 2 2 0 0 0 0 1 0 1 *** 1988 5 6 7 4 0 0 0 0 0 0 0 4 26 1989 4 6 6 1 0 0 0 0 0 0 2 3 22 1990 9 10 4 6 4 0 0 0 0 0 0 *** *** 1991 5 9 10 4 3 0 0 0 0 1 1 5 38 1992 *** *** *** *** 0 1 0 0 0 0 0 6 *** 1993 6 6 8 4 5 0 0 0 *** *** 3 0 *** 1994 5 *** 6 1 *** *** 0 0 0 2 0 2 *** 1995 2 3 4 6 0 0 0 0 *** 2 0 5 *** 1996 3 10 18 1 3 0 0 0 1 3 0 1 40 1997 4 2 11 11 0 0 0 0 0 1 4 7 40 1998 8 6 8 1 1 0 0 0 0 0 0 0 24 1999 8 9 7 3 0 0 0 0 0 0 0 0 27 2000 4 *** 2 0 0 0 0 0 0 1 5 6 *** 2001 2 *** 4 0 0 0 0 0 0 2 1 5 *** 2002 6 6 3 6 0 0 0 0 0 0 4 4 29 2003 5 2 5 4 3 0 0 0 0 0 2 2 23 MEAN 5 6 7 4 1 0 0 0 0 1 1 3 28 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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 1970 *** *** *** *** *** *** 0 0 0 1 0 1 *** 1971 0 6 5 4 0 0 0 0 0 0 2 3 20 1972 8 5 8 4 5 1 0 0 0 0 0 2 33 1973 6 6 11 1 0 0 *** 0 0 0 0 1 *** 1974 7 13 7 7 1 0 *** 0 0 0 0 2 *** 1975 9 *** 9 11 1 0 0 0 0 0 *** *** *** 1976 3 12 10 15 2 0 0 0 0 0 1 4 47 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 7 9 3 3 1 0 0 0 0 0 3 4 30 1979 10 3 *** 3 3 0 *** 0 0 *** 2 4 *** 1980 8 7 6 1 0 0 0 0 0 0 1 2 25 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 4 5 6 1 *** 0 0 0 0 0 0 7 *** 1985 5 1 2 3 0 0 0 0 0 *** *** 4 *** 1986 1 7 11 4 0 0 0 0 0 0 4 5 32 1987 *** 1 4 2 2 0 0 0 0 1 0 1 *** 1988 5 5 7 4 0 0 0 0 0 0 0 4 25 1989 4 6 6 1 0 0 0 0 0 0 2 3 22 1990 9 10 4 6 4 0 0 0 0 0 0 *** *** 1991 5 9 10 4 3 0 0 0 0 1 1 5 38 1992 *** *** *** *** 0 1 0 0 0 0 0 6 *** 1993 6 6 8 4 5 0 0 0 *** *** 3 0 *** 1994 5 *** 6 1 *** *** 0 0 0 2 0 2 *** 1995 2 3 4 6 0 0 0 0 *** 2 0 5 *** 1996 3 10 18 1 3 0 0 0 1 3 0 1 40 1997 4 2 11 11 0 0 0 0 0 1 4 7 40 1998 8 6 8 1 1 0 0 0 0 0 0 0 24 1999 8 9 7 3 0 0 0 0 0 0 0 0 27 2000 4 *** 2 0 0 0 0 0 0 1 5 6 *** 2001 2 *** 4 0 0 0 0 0 0 2 1 5 *** 2002 6 6 3 6 0 0 0 0 0 0 4 4 29 2003 5 2 5 4 3 0 0 0 0 0 2 2 23 MEAN 5 6 7 4 1 0 0 0 0 1 1 3 28 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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 1970 *** *** *** *** *** *** 0 0 0 0 0 0 *** 1971 0 0 0 2 0 0 0 0 0 0 0 0 2 1972 1 2 2 0 0 0 0 0 0 0 0 0 5 1973 0 2 0 0 0 0 *** 0 0 0 0 0 *** 1974 3 2 2 1 0 0 *** 0 0 0 0 1 *** 1975 1 *** 4 2 0 0 0 0 0 0 *** *** *** 1976 0 1 6 5 0 0 0 0 0 0 0 0 12 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 3 4 1 0 0 0 0 0 0 0 0 0 8 1979 2 0 *** 1 0 0 *** 0 0 *** 0 0 *** 1980 3 1 1 0 0 0 0 0 0 0 0 0 5 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 1 0 0 0 *** 0 0 0 0 0 0 0 *** 1985 1 0 0 0 0 0 0 0 0 *** *** 1 *** 1986 0 1 5 3 0 0 0 0 0 0 0 1 10 1987 *** 0 1 0 0 0 0 0 0 0 0 0 *** 1988 0 0 2 1 0 0 0 0 0 0 0 3 6 1989 1 0 1 0 0 0 0 0 0 0 0 0 2 1990 3 6 0 1 0 0 0 0 0 0 0 *** *** 1991 0 1 2 1 0 0 0 0 0 0 1 1 6 1992 *** *** *** *** 0 0 0 0 0 0 0 0 *** 1993 3 3 0 2 0 0 0 0 *** *** 1 0 *** 1994 2 *** 0 0 *** *** 0 0 0 0 0 0 *** 1995 0 0 2 1 0 0 0 0 *** 0 0 0 *** 1996 1 3 4 0 0 0 0 0 0 0 0 0 8 1997 1 0 2 2 0 0 0 0 0 0 0 1 6 1998 1 1 1 0 0 0 0 0 0 0 0 0 3 1999 0 0 1 0 0 0 0 0 0 0 0 0 1 2000 0 *** 0 0 0 0 0 0 0 0 2 2 *** 2001 1 *** 1 0 0 0 0 0 0 0 0 2 *** 2002 1 2 0 4 0 0 0 0 0 0 2 2 11 2003 2 1 1 1 0 0 0 0 0 0 0 0 5 MEAN 1 1 1 1 0 0 0 0 0 0 0 1 5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** 35 33 40 50 42 60 *** 1971 59 56 48 57 37 34 35 34 39 44 57 60 47 1972 70 67 69 61 52 53 40 41 43 43 57 79 56 1973 84 74 65 49 46 40 *** 37 48 54 58 75 *** 1974 82 76 72 54 46 44 *** 40 46 59 59 68 *** 1975 76 *** 68 62 47 40 41 46 57 67 *** *** *** 1976 63 71 76 68 65 44 44 47 52 58 73 79 62 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 69 79 75 65 58 52 42 39 48 62 67 64 60 1979 72 72 *** 58 63 55 *** 39 42 *** 61 67 *** 1980 72 76 72 63 57 45 46 42 44 46 47 80 58 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 74 76 60 55 *** 33 25 33 44 38 50 *** *** 1985 76 62 63 54 44 39 44 53 46 *** *** 69 *** 1986 71 76 73 69 56 42 45 47 44 56 64 78 60 1987 *** 67 61 59 49 45 48 43 49 55 58 61 *** 1988 64 71 61 62 51 46 43 45 44 50 55 64 55 1989 79 79 72 56 58 45 45 51 48 56 64 67 60 1990 75 79 71 62 49 50 49 55 46 55 41 *** *** 1991 75 74 71 61 62 66 70 61 54 54 63 81 66 1992 *** *** *** *** 69 65 55 53 56 39 52 69 *** 1993 70 82 73 69 64 64 73 78 *** *** 65 74 *** 1994 69 *** 59 51 *** *** 46 43 50 53 47 47 *** 1995 48 62 56 61 51 49 48 47 *** 60 57 70 *** 1996 66 77 77 72 61 55 60 54 59 62 67 62 64 1997 59 55 69 65 *** *** 57 65 64 71 71 75 *** 1998 88 80 77 70 57 64 58 55 54 53 51 67 65 1999 49 60 70 63 49 51 54 43 45 56 61 34 53 2000 69 *** 71 49 52 40 46 47 55 57 78 61 *** 2001 58 *** 72 54 54 58 58 60 57 45 58 63 *** 2002 54 69 68 66 58 51 50 53 46 57 59 82 59 2003 70 74 73 74 68 66 61 61 55 56 66 72 66 MEAN 69 71 68 61 55 49 49 48 49 54 59 68 58 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** 22 22 22 26 23 28 *** 1971 33 31 27 30 21 19 21 23 24 25 35 41 28 1972 64 68 53 39 35 34 28 25 24 28 37 50 40 1973 65 52 42 29 30 24 *** 22 23 27 32 42 *** 1974 69 68 48 36 28 27 *** 25 32 36 37 55 *** 1975 60 *** 49 38 30 24 23 29 36 52 *** *** *** 1976 51 63 65 52 50 25 34 32 36 36 43 44 44 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 57 57 49 32 31 24 25 22 29 37 48 47 38 1979 56 56 *** 35 35 29 *** 24 27 *** 37 43 *** 1980 62 60 57 48 39 23 30 29 30 28 33 45 40 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 60 68 39 38 *** 26 16 25 31 32 37 58 *** 1985 62 38 53 44 35 30 35 38 *** *** *** 64 *** 1986 55 67 63 61 51 31 38 24 30 36 50 66 48 1987 *** 51 44 43 34 27 33 27 *** 42 41 42 *** 1988 54 61 48 49 31 37 39 26 31 37 41 50 42 1989 63 69 56 45 45 37 34 29 29 35 44 49 45 1990 59 63 41 34 31 30 34 30 26 36 35 *** *** 1991 62 55 62 42 38 28 35 29 31 34 48 71 45 1992 *** *** *** *** 51 39 38 36 32 38 32 53 *** 1993 75 78 70 57 43 32 38 39 *** *** 57 63 *** 1994 52 *** 49 44 *** *** 34 34 53 51 49 53 *** 1995 49 51 50 57 45 43 38 40 *** 57 54 70 *** 1996 71 70 72 61 52 43 46 45 45 53 61 58 56 1997 58 59 60 58 *** *** 47 45 44 62 68 74 *** 1998 73 68 71 63 44 38 38 36 40 45 51 69 53 1999 66 66 66 67 38 38 40 34 36 45 60 55 51 2000 72 *** 62 41 39 38 38 35 44 56 68 65 *** 2001 74 *** 52 51 33 40 37 37 38 41 41 54 *** 2002 61 65 60 57 39 39 42 41 39 36 55 63 50 2003 72 66 61 63 60 53 46 45 47 54 62 69 58 MEAN 61 60 54 47 39 33 34 32 34 40 46 55 45 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** 29 24 28 44 34 47 *** 1971 50 48 39 45 26 22 26 26 30 43 50 51 38 1972 76 70 70 52 47 38 32 30 32 42 55 77 52 1973 78 67 61 40 35 29 *** 29 34 43 46 66 *** 1974 82 79 65 49 37 32 *** 31 40 55 57 67 *** 1975 72 *** 60 51 42 28 33 40 47 63 *** *** *** 1976 60 73 75 66 60 37 44 40 46 54 63 71 57 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 66 74 64 50 48 40 32 31 42 52 63 60 52 1979 67 70 *** 50 52 44 *** 31 36 *** 50 57 *** 1980 70 73 69 60 54 38 39 37 37 42 49 59 52 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 74 69 48 43 *** 26 17 25 33 33 45 *** *** 1985 76 50 64 48 39 30 36 40 39 *** *** 69 *** 1986 64 75 66 58 45 32 39 37 37 46 57 72 52 1987 *** 60 61 55 46 35 38 36 48 53 54 52 *** 1988 67 69 62 56 44 39 37 36 36 50 50 60 51 1989 76 76 67 43 46 38 35 39 33 53 55 60 52 1990 70 76 56 55 38 42 36 32 42 44 48 *** *** 1991 71 67 69 46 39 30 37 34 38 45 58 74 51 1992 *** *** *** *** 56 41 41 46 46 45 54 67 *** 1993 75 81 67 62 46 34 38 37 *** *** 62 65 *** 1994 62 *** 54 43 *** *** 34 38 48 50 46 58 *** 1995 61 61 58 57 48 44 39 46 *** 64 65 79 *** 1996 76 79 77 68 54 45 47 46 51 60 66 62 61 1997 70 62 63 59 *** *** 47 45 47 70 72 78 *** 1998 73 68 73 64 44 39 38 36 47 50 53 72 55 1999 68 69 68 67 38 38 41 34 39 52 63 60 53 2000 79 *** 62 39 39 35 35 34 46 58 75 74 *** 2001 74 *** 58 53 33 39 35 35 38 49 50 62 *** 2002 66 68 63 61 45 37 40 40 37 46 59 63 52 2003 71 71 65 68 65 51 46 42 49 59 63 73 60 MEAN 70 69 63 54 45 36 37 36 40 51 56 65 52 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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 1970 *** *** *** *** *** *** 0 0 0 1 1 9 *** 1971 22 7 0 0 0 0 0 0 0 1 0 1 31 1972 18 22 1 0 0 0 0 0 0 0 1 14 56 1973 23 3 3 0 0 0 *** 0 0 0 4 14 *** 1974 17 15 6 0 0 0 *** 0 0 0 0 13 *** 1975 22 *** 4 0 0 0 0 0 0 0 *** *** *** 1976 2 0 0 0 0 0 0 0 0 0 12 12 26 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 22 8 0 0 0 0 0 0 0 0 10 8 48 1979 12 15 *** 0 0 0 *** 0 0 *** 0 13 *** 1980 21 13 0 0 0 0 0 0 0 0 0 4 38 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 *** *** 0 0 *** 0 0 0 0 0 *** *** *** 1985 *** 1 *** 0 0 0 0 0 0 *** *** *** *** 1986 *** *** *** *** *** *** 0 0 0 0 1 7 *** 1987 *** 2 0 0 0 0 0 0 0 *** 3 4 *** 1988 4 4 2 0 0 0 0 0 0 0 1 0 11 1989 22 18 0 0 0 0 0 0 0 0 0 1 41 1990 8 5 4 0 0 0 0 0 0 0 0 *** *** 1991 *** *** 2 0 *** *** *** *** *** *** *** *** *** 1992 *** *** *** *** *** *** *** *** *** *** *** *** *** 1993 *** *** *** *** *** *** *** *** *** *** *** *** *** 1994 5 *** 0 *** *** *** *** *** *** *** *** *** *** 1995 *** *** *** *** 0 0 0 0 *** 0 2 10 *** 1996 19 5 1 2 0 0 0 0 0 0 4 10 41 1997 23 16 3 0 *** *** 0 0 0 0 5 19 *** 1998 23 17 *** *** *** *** *** *** *** *** *** *** *** 1999 *** *** *** *** *** *** *** *** *** 0 *** *** *** 2000 *** *** 4 0 0 0 0 0 0 0 5 24 *** 2001 31 *** 1 0 0 0 0 0 0 0 4 10 *** 2002 31 9 0 0 0 0 0 0 0 0 0 29 69 2003 26 10 2 0 1 0 0 0 0 0 1 14 54 MEAN 18 9 2 0 0 0 0 0 0 0 3 11 43 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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 1970 *** *** *** *** *** *** 0 2 0 0 0 0 *** 1971 0 0 0 0 0 1 4 0 0 0 0 0 5 1972 0 0 0 0 0 0 3 0 0 0 0 0 3 1973 0 0 0 0 0 1 *** 2 0 0 0 0 *** 1974 0 0 0 0 0 1 *** 1 0 0 0 0 *** 1975 0 *** 0 0 0 4 6 3 0 0 *** *** *** 1976 0 0 0 0 0 2 4 2 0 0 0 0 8 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 *** 0 0 0 *** 0 0 *** 0 0 *** 1980 0 0 0 0 0 0 0 1 0 0 0 0 1 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 *** *** 0 0 *** 0 12 5 0 0 *** *** *** 1985 *** 0 *** 0 0 5 10 0 0 *** *** *** *** 1986 *** *** *** *** *** *** 7 2 0 0 0 0 *** 1987 *** 0 0 0 0 0 0 0 0 *** 0 0 *** 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 *** *** 1991 *** *** 0 0 *** *** *** *** *** *** *** *** *** 1992 *** *** *** *** *** *** *** *** *** *** *** *** *** 1993 *** *** *** *** *** *** *** *** *** *** *** *** *** 1994 0 *** 0 *** *** *** *** *** *** *** *** *** *** 1995 *** *** *** *** 0 0 2 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 *** 1998 0 0 *** *** *** *** *** *** *** *** *** *** *** 1999 *** *** *** *** *** *** *** *** *** 0 *** *** *** 2000 *** *** 0 0 0 2 0 0 0 0 0 0 *** 2001 0 *** 0 0 0 0 0 0 0 0 0 0 *** 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 1 2 1 0 0 0 0 4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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 1970 *** *** *** *** *** *** 0 0 0 0 0 0 *** 1971 3 2 0 0 0 0 0 0 0 0 0 0 5 1972 7 12 0 0 0 0 0 0 0 0 0 4 23 1973 8 0 0 0 0 0 *** 0 0 0 0 1 *** 1974 2 7 0 0 0 0 *** 0 0 0 0 2 *** 1975 4 *** 2 0 0 0 0 0 0 0 *** *** *** 1976 0 1 0 0 0 0 0 0 0 0 0 0 1 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 3 1 0 0 0 0 0 0 0 0 0 0 4 1979 1 0 *** 0 0 0 *** 0 0 *** 0 0 *** 1980 3 0 0 0 0 0 0 0 0 0 0 0 3 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 0 8 0 0 *** 0 0 0 0 0 0 4 *** 1985 0 0 0 0 0 0 0 0 0 *** *** 0 *** 1986 0 0 0 0 0 0 0 0 0 0 0 2 2 1987 *** 0 0 0 0 0 0 0 0 0 2 1 *** 1988 0 1 0 0 0 0 0 0 0 0 0 0 1 1989 3 6 0 0 0 0 0 0 0 0 0 0 9 1990 2 0 1 0 0 0 0 0 0 0 0 *** *** 1991 0 3 0 0 0 0 0 0 0 0 0 1 4 1992 *** *** *** *** 0 0 0 0 0 0 0 0 *** 1993 7 1 0 0 0 0 0 0 *** *** *** *** *** 1994 0 *** 0 0 *** *** 0 0 0 0 0 0 *** 1995 0 0 0 *** 0 0 0 0 *** 0 0 1 *** 1996 10 2 0 0 0 0 0 0 0 0 0 0 12 1997 0 0 0 0 *** *** *** *** *** *** *** *** *** 1998 *** *** *** *** *** *** *** *** *** *** *** 0 *** 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 *** 0 0 0 0 0 0 0 0 0 0 *** 2001 9 *** 0 0 0 0 0 0 0 0 0 0 *** 2002 0 0 0 0 0 0 0 0 0 0 0 2 2 2003 1 0 0 0 0 0 0 0 0 0 0 2 3 MEAN 2 2 0 0 0 0 0 0 0 0 0 1 5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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 1970 *** *** *** *** *** *** 9 23 0 0 0 0 *** 1971 0 0 0 0 11 16 14 8 2 0 0 0 51 1972 0 0 0 0 1 12 8 1 4 0 0 0 26 1973 0 0 0 1 6 23 *** 14 2 1 0 0 *** 1974 0 0 0 0 3 17 *** 7 7 0 0 0 *** 1975 0 *** 0 0 0 16 28 15 8 2 *** *** *** 1976 0 0 0 0 17 20 23 16 3 0 0 0 79 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 0 0 0 0 4 11 24 15 0 0 0 0 54 1979 0 0 *** 1 0 8 *** 5 6 *** 0 0 *** 1980 0 0 0 0 3 15 10 10 4 1 0 0 43 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 0 0 0 0 *** 0 14 19 2 0 0 0 *** 1985 0 0 0 0 0 12 12 0 0 *** *** 0 *** 1986 0 0 0 0 3 2 9 2 0 1 0 0 17 1987 *** 0 0 1 4 3 11 6 3 0 0 0 *** 1988 0 0 0 0 9 15 18 1 4 0 0 0 47 1989 0 0 0 0 2 13 14 5 5 1 0 0 40 1990 0 0 0 0 10 7 6 23 0 0 0 *** *** 1991 0 0 0 0 5 18 16 16 7 0 0 0 62 1992 *** *** *** *** 0 25 20 0 0 0 0 0 *** 1993 0 0 0 0 4 11 18 6 *** *** *** *** *** 1994 0 *** 0 0 *** *** 18 16 0 0 0 0 *** 1995 0 0 0 *** 4 10 23 7 *** 0 0 0 *** 1996 0 0 0 0 0 20 17 13 12 0 0 0 62 1997 0 0 0 0 *** *** *** *** *** *** *** *** *** 1998 *** *** *** *** *** *** *** *** *** *** *** 0 *** 1999 0 0 0 0 6 20 21 19 6 0 0 0 72 2000 0 *** 0 4 14 18 23 25 2 0 0 0 *** 2001 0 *** 0 0 12 21 27 17 11 0 0 0 *** 2002 0 0 0 0 4 19 29 22 19 0 0 0 93 2003 0 0 0 0 0 18 24 26 2 0 0 0 70 MEAN 0 0 0 0 5 14 17 12 4 0 0 0 52 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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 1970 *** *** *** *** *** *** 0 0 0 0 0 0 *** 1971 0 0 0 0 0 0 0 0 0 0 0 0 0 1972 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 1 *** 0 0 0 0 0 *** 1974 0 0 0 0 0 0 *** 0 0 0 0 0 *** 1975 0 *** 0 0 0 0 0 0 0 0 *** *** *** 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 *** 0 0 0 *** 0 0 *** 0 0 *** 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 0 0 0 0 *** 0 0 0 0 0 0 0 *** 1985 0 0 0 0 0 0 0 0 0 *** *** 0 *** 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 *** *** 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 *** *** *** *** 0 0 0 0 0 0 0 0 *** 1993 0 0 0 0 0 0 0 0 *** *** *** *** *** 1994 0 *** 0 0 *** *** 0 0 0 0 0 0 *** 1995 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 *** *** *** *** *** *** *** *** *** 1998 *** *** *** *** *** *** *** *** *** *** *** 0 *** 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 *** 0 0 0 0 0 0 0 0 0 0 *** 2001 0 *** 0 0 0 0 0 0 0 0 0 0 *** 2002 0 0 0 0 0 0 0 0 0 0 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 ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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 1970 *** *** *** *** *** *** 0 0 0 0 0 0 *** 1971 0 0 0 0 0 0 0 0 0 0 0 0 0 1972 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 0 *** 0 0 0 0 0 *** 1974 0 0 0 0 0 0 *** 0 0 0 0 0 *** 1975 0 *** 0 0 0 0 0 0 0 0 *** *** *** 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 *** 0 0 0 *** 0 0 *** 0 0 *** 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 0 0 0 0 *** 0 0 0 0 0 0 0 *** 1985 0 0 0 0 0 0 0 0 0 *** *** 0 *** 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 *** *** 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 *** *** *** *** 0 0 0 0 0 0 0 0 *** 1993 0 0 0 0 0 0 0 0 *** *** *** *** *** 1994 0 *** 0 0 *** *** 0 0 0 0 0 0 *** 1995 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 *** *** *** *** *** *** *** *** *** 1998 *** *** *** *** *** *** *** *** *** *** *** 0 *** 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 *** 0 0 0 0 0 0 0 0 0 0 *** 2001 0 *** 0 0 0 0 0 0 0 0 0 0 *** 2002 0 0 0 0 0 0 0 0 0 0 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 ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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 -------------- 1970 *** *** *** *** *** *** 0 0 0 5 7 20 *** 10 22 12 31 1971 29 18 10 0 0 0 0 0 0 4 3 8 72 10 19 3 24 1972 25 26 6 0 0 0 0 0 0 0 7 21 85 11 22 3 29 1973 29 10 7 0 0 0 *** 0 1 2 12 23 *** 9 30 3 31 1974 28 17 9 1 0 0 *** 0 0 11 13 24 *** 10 4 4 13 1975 29 *** 6 1 0 0 0 0 0 4 *** *** *** 10 21 4 4 1976 8 19 13 0 0 0 0 0 0 0 18 30 88 11 6 3 31 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1978 25 14 5 0 0 0 0 0 0 5 17 16 82 10 5 3 18 1979 21 23 *** 0 0 0 *** 0 0 *** 2 19 *** 11 22 2 28 1980 31 22 4 1 0 0 0 0 0 0 1 27 86 11 30 4 8 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1984 *** *** 0 0 *** 0 0 0 0 5 *** *** *** 10 9 10 29 1985 *** 11 *** 0 0 0 0 0 0 *** *** *** *** 2 7 2 28 1986 *** *** *** *** *** *** 0 0 0 0 5 9 *** 11 13 2 9 1987 *** 10 0 0 0 0 0 0 0 *** 7 9 *** 11 18 2 24 1988 14 14 7 3 0 0 0 0 0 1 7 9 55 10 4 4 10 1989 31 22 7 1 4 0 0 0 0 2 2 13 82 10 16 5 4 1990 23 17 10 0 0 0 0 0 0 0 5 *** *** 11 12 3 25 1991 *** *** 14 0 *** *** *** *** *** *** *** *** *** 2 22 3 22 1992 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1993 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1994 18 *** 0 *** *** *** *** *** *** *** *** *** *** 1 7 1 28 1995 *** *** *** *** 0 0 0 0 *** 0 4 21 *** 11 27 12 26 1996 27 18 6 3 0 0 0 0 0 0 14 16 84 11 12 4 7 1997 29 20 13 0 *** *** 0 0 0 0 12 30 *** 11 9 3 18 1998 29 25 *** *** *** *** *** *** *** *** *** *** *** 1 1 3 7 1999 *** *** *** *** *** *** *** *** *** 0 *** *** *** ** ** ** ** 2000 *** *** 17 0 0 0 0 0 0 0 15 30 *** 11 10 3 27 2001 31 *** 2 3 0 0 0 0 0 0 14 27 *** 11 8 4 5 2002 31 22 9 0 0 0 0 0 0 0 0 30 92 12 2 3 11 2003 31 28 3 1 1 0 0 0 0 0 7 21 92 11 17 5 1 MEAN 26 19 7 1 0 0 0 0 0 2 8 20 83 9 30 5 4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 24.5 25.9 17.9 13.5 11.2 5.0 ****** 1971 0.7 5.3 11.0 14.2 21.0 24.0 24.8 23.2 17.4 13.1 10.5 7.3 14.4 1972 -0.3 -3.0 8.0 14.4 17.4 23.8 23.7 20.4 19.0 15.1 10.4 2.1 12.6 1973 -1.1 7.1 9.5 17.1 20.6 25.2 ****** 23.8 18.5 15.0 10.1 3.7 ****** 1974 0.2 0.3 9.3 14.9 20.3 23.9 ****** 22.3 19.8 10.2 9.5 3.1 ****** 1975 0.5 ****** 8.6 13.6 18.8 24.2 26.2 23.4 20.5 13.7 ****** ****** ****** 1976 7.9 4.3 5.2 15.1 22.2 24.1 26.2 24.3 20.6 16.1 5.5 3.1 14.5 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 0.8 4.4 8.5 16.2 19.2 22.9 25.8 23.0 19.9 13.4 7.3 7.8 14.1 1979 3.2 2.2 ****** 17.9 16.7 22.6 ****** 22.2 20.9 ****** 10.6 5.3 ****** 1980 -0.3 3.2 8.1 13.1 19.3 23.0 24.1 24.2 20.7 16.0 12.8 6.6 14.2 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 0.8 -1.5 11.3 15.5 ****** 22.4 25.7 25.2 18.0 12.5 11.5 0.4 ****** 1985 4.1 7.8 7.6 15.0 19.2 24.9 25.1 21.7 19.0 ****** ****** 4.4 ****** 1986 3.4 3.4 5.3 13.8 20.9 23.7 24.7 22.1 19.2 17.0 10.1 2.6 13.9 1987 ****** 6.9 11.8 15.8 20.5 22.6 24.3 24.6 21.1 13.8 11.3 8.7 ****** 1988 5.2 4.8 9.1 15.6 21.7 25.8 26.0 22.6 20.5 14.9 12.3 6.9 15.4 1989 -0.2 0.6 8.8 13.2 16.9 24.5 25.5 23.0 21.6 15.6 10.8 8.3 14.1 1990 2.4 3.8 9.5 14.5 21.7 23.4 24.3 25.2 19.9 17.4 12.2 ****** ****** 1991 5.9 3.4 7.4 15.5 19.2 24.7 23.9 24.1 21.3 14.0 10.5 5.4 14.6 1992 ****** ****** ****** ****** 16.7 25.0 24.8 18.7 16.8 15.5 12.3 6.8 ****** 1993 -1.9 2.1 8.4 15.6 19.3 23.1 23.2 22.5 ****** ****** 6.7 5.9 ****** 1994 4.4 ****** 9.5 14.7 ****** ****** 23.8 23.1 15.9 15.6 14.4 4.7 ****** 1995 3.2 4.1 8.2 12.3 19.0 22.9 25.0 22.3 ****** 14.3 10.0 2.1 ****** 1996 -1.5 2.7 6.8 11.3 17.9 24.4 24.2 24.6 22.0 16.3 6.8 6.3 13.5 1997 2.9 5.1 7.1 11.2 ****** ****** 24.9 25.3 21.7 14.9 6.7 3.1 ****** 1998 1.7 2.9 9.1 15.9 21.5 23.6 25.1 24.2 20.5 16.8 12.6 6.2 15.0 1999 3.7 6.4 7.3 13.7 23.1 24.9 24.8 24.7 21.7 16.2 7.0 3.4 14.7 2000 1.3 ****** 7.0 20.6 23.5 25.2 24.9 25.3 20.2 14.5 6.1 3.5 ****** 2001 -3.2 ****** 8.3 17.4 22.7 24.2 25.2 23.9 22.7 18.7 9.0 5.6 ****** 2002 -0.0 4.8 8.4 13.6 21.3 24.8 25.6 24.9 24.1 19.0 14.2 2.9 15.3 2003 1.6 4.8 7.8 12.4 16.6 23.4 24.9 24.8 20.4 16.1 10.0 3.9 13.9 MEAN 1.7 3.6 8.4 14.8 19.9 24.0 24.9 23.5 20.1 15.2 10.1 4.8 14.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 4.0 3.9 -1.0 -1.3 -5.9 -7.5 ****** 1971 -10.5 -6.8 -4.9 0.2 0.9 1.8 4.1 2.8 -0.6 -2.1 -1.0 -3.0 -1.6 1972 -5.3 -8.2 1.0 3.3 4.4 9.4 5.9 2.5 1.1 0.1 -0.8 -3.8 0.8 1973 -5.1 0.3 0.3 1.9 4.4 5.9 ****** 4.2 1.7 0.8 -2.7 -4.2 ****** 1974 -3.4 -4.0 1.3 1.9 4.4 6.3 ****** 4.0 4.9 -0.3 -1.0 -3.5 ****** 1975 -4.9 ****** -0.0 2.4 3.9 5.0 7.5 7.7 7.9 5.9 ****** ****** ****** 1976 -0.2 -1.1 0.4 7.5 13.3 6.7 11.4 9.2 7.7 4.8 -2.7 -3.8 4.4 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 -5.8 -1.0 1.3 4.4 6.0 7.0 7.5 4.1 5.1 2.3 -0.6 -0.6 2.5 1979 -3.1 -3.6 ****** 5.9 5.4 8.4 ****** 3.8 4.1 ****** -0.4 -3.9 ****** 1980 -5.8 -2.1 1.7 4.1 8.1 5.6 8.4 7.6 4.8 1.2 -0.5 -1.0 2.7 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 -4.2 -6.2 0.3 2.3 ****** 1.9 -0.2 4.7 1.8 -4.1 -1.4 ****** ****** 1985 -0.0 -2.8 0.0 3.0 4.0 7.0 9.1 8.3 ****** ****** ****** -1.7 ****** 1986 -3.0 -1.4 -0.7 6.5 9.7 6.9 10.3 5.2 3.4 4.5 0.7 -2.3 3.3 1987 ****** -1.5 2.4 5.5 6.6 5.7 9.1 7.0 ****** 3.0 1.5 -1.4 ****** 1988 -2.3 -1.3 0.6 6.4 7.0 10.6 10.8 5.8 4.7 2.8 0.9 -1.4 3.7 1989 -4.8 -3.5 2.1 1.8 5.6 9.6 9.8 7.8 5.3 3.8 1.2 0.3 3.2 1990 -3.4 -1.0 0.2 3.5 6.3 8.6 9.1 9.4 4.3 4.9 -1.4 ****** ****** 1991 0.5 -3.3 1.4 4.3 6.4 9.3 11.2 8.9 6.8 1.4 1.8 1.2 4.2 1992 ****** ****** ****** ****** 8.0 12.8 11.4 6.0 3.8 1.7 0.1 -0.1 ****** 1993 -6.3 -1.1 3.1 8.1 8.4 9.0 11.3 10.8 ****** ****** -0.3 0.1 ****** 1994 -2.8 ****** 0.5 2.7 ****** ****** 8.3 7.7 5.3 5.4 3.2 -4.5 ****** 1995 -6.1 -3.8 -0.6 4.1 7.1 10.1 10.7 9.2 ****** 6.5 1.9 -2.5 ****** 1996 -6.3 -1.4 2.5 5.1 8.6 12.2 13.1 12.6 11.1 7.7 0.5 -0.9 5.4 1997 -3.8 -2.6 0.5 3.7 ****** ****** 13.7 14.3 11.0 8.8 1.6 -1.2 ****** 1998 -1.9 -1.8 4.5 9.1 9.8 11.0 11.6 10.0 8.5 5.8 2.7 0.9 5.8 1999 -3.3 0.1 1.7 7.3 9.1 11.1 11.5 8.8 7.0 5.5 -0.1 -6.8 4.3 2000 -3.1 ****** 0.7 7.2 10.0 9.7 9.9 9.9 8.5 5.9 1.5 -2.2 ****** 2001 -8.4 ****** 0.9 7.1 7.8 11.2 11.3 10.4 9.5 6.2 -1.5 -1.8 ****** 2002 -7.4 -0.9 1.7 6.1 9.4 10.9 12.3 11.8 9.7 6.7 5.8 -2.5 5.3 2003 -3.2 -0.3 1.7 6.5 9.7 13.9 13.8 13.0 9.5 7.2 2.8 -1.0 6.1 MEAN -4.2 -2.5 0.9 4.7 7.1 8.4 9.5 7.7 5.6 3.5 0.2 -2.2 3.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 6.32 6.41 4.43 4.47 3.12 2.75 ****** 1971 2.22 2.89 3.40 4.85 5.04 5.41 6.24 5.78 4.56 4.13 4.40 3.84 4.40 1972 3.40 2.84 5.08 6.05 6.54 9.09 7.24 5.69 5.19 4.80 4.48 3.66 5.34 1973 3.30 4.86 4.87 5.43 6.46 7.15 ****** 6.26 5.39 5.14 3.97 3.49 ****** 1974 3.70 3.65 5.25 5.44 6.48 7.38 ****** 6.31 6.75 4.62 4.45 3.72 ****** 1975 3.37 ****** 4.87 5.59 6.27 6.77 7.95 8.06 8.33 7.38 ****** ****** ****** 1976 4.68 4.39 4.82 8.16 11.98 7.61 10.41 8.90 8.20 6.68 3.93 3.57 6.94 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 3.24 4.46 5.16 6.48 7.23 7.69 8.01 6.25 6.72 5.59 4.63 4.66 5.84 1979 3.88 3.68 ****** 7.21 6.91 8.50 ****** 6.19 6.33 ****** 4.55 3.61 ****** 1980 3.18 4.22 5.37 6.39 8.55 7.04 8.47 8.13 6.94 5.24 4.57 4.45 6.05 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 3.49 3.12 4.88 5.69 ****** 5.58 4.61 6.65 5.62 3.67 4.32 ****** ****** 1985 4.70 3.92 4.93 6.09 6.43 7.80 8.98 8.34 ****** ****** ****** 4.25 ****** 1986 3.84 4.26 4.57 7.72 9.55 7.61 9.63 6.97 6.08 6.56 4.99 4.16 6.33 1987 ****** 4.25 5.64 6.95 7.76 7.17 8.88 7.84 ****** 6.10 5.49 4.31 ****** 1988 4.05 4.34 5.06 7.66 7.84 10.01 10.01 7.12 6.77 5.84 5.18 4.32 6.52 1989 3.33 3.74 5.48 5.40 7.22 9.22 9.28 8.14 6.90 6.30 5.27 4.92 6.27 1990 3.74 4.39 4.93 6.19 7.38 8.62 8.87 8.96 6.56 6.67 4.42 ****** ****** 1991 4.89 3.85 5.31 6.40 7.56 8.94 10.09 8.82 7.65 5.25 5.36 5.38 6.63 1992 ****** ****** ****** ****** 8.44 11.37 10.32 7.21 6.25 5.40 4.80 4.71 ****** 1993 3.23 4.41 6.10 8.30 8.46 8.75 10.16 9.86 ****** ****** 4.82 4.82 ****** 1994 3.89 ****** 4.85 5.87 ****** ****** 8.42 8.07 7.02 7.02 5.94 3.74 ****** 1995 3.19 3.60 4.66 6.40 7.82 9.56 9.96 8.88 ****** 7.65 5.70 4.08 ****** 1996 3.36 4.36 5.75 6.99 8.64 10.91 11.51 11.24 10.21 8.15 4.98 4.62 7.56 1997 3.73 4.15 4.95 6.19 ****** ****** 12.11 12.53 10.07 8.81 5.39 4.56 ****** 1998 4.21 4.25 6.66 8.96 9.26 10.01 10.41 9.42 8.52 7.23 5.87 5.36 7.51 1999 4.18 5.01 5.50 8.08 8.92 10.17 10.59 8.66 7.74 7.03 4.89 3.67 7.04 2000 4.08 ****** 5.10 7.83 9.43 9.26 9.36 9.42 8.51 7.28 5.35 4.29 ****** 2001 2.97 ****** 5.07 8.10 8.06 10.16 10.24 9.62 9.15 7.47 4.43 4.20 ****** 2002 2.98 4.57 5.40 7.34 8.99 10.04 11.02 10.61 9.32 7.52 7.27 4.20 7.44 2003 3.93 4.65 5.38 7.64 9.51 12.31 12.06 11.53 9.17 7.95 6.01 4.75 7.91 MEAN 3.66 4.08 5.15 6.76 7.95 8.67 9.30 8.26 7.24 6.29 4.95 4.23 6.38 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 8.41 8.54 5.89 5.93 4.14 3.64 ****** 1971 2.93 3.82 4.50 6.42 6.71 7.21 8.32 7.70 6.06 5.48 5.83 5.07 5.84 1972 4.47 3.74 6.71 8.01 8.67 12.05 9.61 7.57 6.90 6.37 5.93 4.83 7.07 1973 4.34 6.42 6.44 7.21 8.58 9.51 ****** 8.33 7.17 6.82 5.26 4.60 ****** 1974 4.87 4.81 6.94 7.20 8.60 9.81 ****** 8.39 8.96 6.11 5.89 4.91 ****** 1975 4.43 ****** 6.43 7.40 8.32 9.00 10.56 10.69 11.02 9.75 ****** ****** ****** 1976 6.19 5.78 6.36 10.77 15.78 10.10 13.78 11.80 10.86 8.84 5.19 4.71 9.18 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 4.27 5.88 6.81 8.59 9.58 10.21 10.64 8.31 8.92 7.40 6.11 6.16 7.74 1979 5.12 4.84 ****** 9.55 9.15 11.27 ****** 8.24 8.41 ****** 6.03 4.76 ****** 1980 4.18 5.57 7.08 8.45 11.30 9.35 11.24 10.78 9.21 6.95 6.06 5.87 8.00 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 4.60 4.11 6.45 7.53 ****** 7.43 6.16 8.86 7.46 4.87 5.73 ****** ****** 1985 6.20 5.19 6.51 8.06 8.53 10.37 11.90 11.06 ****** ****** ****** 5.61 ****** 1986 5.06 5.61 6.03 10.19 12.62 10.11 12.76 9.25 8.06 8.69 6.59 5.48 8.37 1987 ****** 5.62 7.46 9.20 10.27 9.52 11.78 10.40 ****** 8.07 7.26 5.71 ****** 1988 5.34 5.72 6.68 10.12 10.39 13.25 13.26 9.45 8.98 7.74 6.85 5.70 8.62 1989 4.38 4.92 7.23 7.15 9.56 12.23 12.31 10.80 9.16 8.34 6.96 6.50 8.29 1990 4.93 5.78 6.52 8.18 9.80 11.43 11.76 11.89 8.70 8.84 5.86 ****** ****** 1991 6.45 5.08 7.00 8.47 10.01 11.86 13.36 11.69 10.14 6.96 7.09 7.09 8.77 1992 ****** ****** ****** ****** 11.15 15.03 13.66 9.56 8.28 7.17 6.36 6.22 ****** 1993 4.25 5.80 8.04 10.96 11.19 11.60 13.43 13.04 ****** ****** 6.36 6.36 ****** 1994 5.13 ****** 6.42 7.77 ****** ****** 11.17 10.70 9.29 9.28 7.87 4.94 ****** 1995 4.21 4.75 6.15 8.45 10.36 12.65 13.20 11.77 ****** 10.10 7.53 5.38 ****** 1996 4.42 5.74 7.58 9.22 11.42 14.42 15.21 14.85 13.49 10.76 6.57 6.10 9.98 1997 4.92 5.48 6.54 8.17 ****** ****** 15.99 16.54 13.31 11.62 7.11 6.00 ****** 1998 5.55 5.60 8.77 11.82 12.25 13.25 13.78 12.48 11.28 9.57 7.76 7.07 9.93 1999 5.51 6.61 7.26 10.65 11.82 13.47 14.01 11.49 10.27 9.31 6.46 4.84 9.31 2000 5.37 ****** 6.73 10.38 12.49 12.28 12.41 12.48 11.26 9.62 7.06 5.66 ****** 2001 3.91 ****** 6.70 10.70 10.70 13.44 13.56 12.75 12.13 9.90 5.86 5.54 ****** 2002 3.93 6.03 7.13 9.69 11.90 13.30 14.58 14.04 12.35 9.96 9.60 5.54 9.84 2003 5.18 6.12 7.10 10.08 12.54 16.22 15.93 15.23 12.12 10.51 7.93 6.26 10.44 MEAN 4.82 5.38 6.80 8.94 10.53 11.50 12.33 10.96 9.60 8.33 6.54 5.58 8.44 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 22.94 25.87 15.74 11.30 10.25 6.07 ****** 1971 4.17 5.73 9.95 10.87 19.57 23.51 23.65 21.48 14.93 10.87 7.46 5.72 13.16 1972 1.91 1.84 4.55 9.47 12.13 18.46 20.33 17.17 16.68 11.81 7.65 2.94 10.41 1973 1.79 4.29 6.40 13.53 16.88 23.70 ****** 21.98 15.60 11.64 8.42 4.06 ****** 1974 1.56 1.95 6.18 10.86 16.20 20.94 ****** 19.57 15.45 7.13 7.02 3.23 ****** 1975 2.30 ****** 5.63 9.12 14.22 22.25 24.30 19.12 14.23 7.46 ****** ****** ****** 1976 4.92 2.77 2.71 7.57 12.02 20.84 20.94 19.41 14.55 10.89 4.76 3.42 10.40 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 2.51 3.11 4.84 10.91 14.01 19.17 23.71 20.82 15.23 9.25 5.33 5.12 11.17 1979 3.29 2.74 ****** 12.24 10.75 17.00 ****** 19.27 17.51 ****** 7.39 4.88 ****** 1980 2.07 2.73 4.19 7.49 12.04 20.26 19.45 20.02 16.51 12.38 9.75 4.90 10.98 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 2.09 1.90 7.39 11.29 ****** 20.15 27.10 23.73 13.87 10.57 8.37 ****** ****** 1985 2.92 5.98 5.41 9.92 14.42 21.73 20.31 15.22 ****** ****** ****** 3.31 ****** 1986 3.41 2.54 3.63 6.16 12.82 19.66 18.62 17.78 14.73 11.82 6.04 2.55 9.98 1987 ****** 4.30 6.85 9.99 14.86 18.43 18.97 20.64 ****** 9.48 8.00 6.25 ****** 1988 3.77 3.40 5.39 8.64 16.71 20.94 20.71 18.46 16.31 9.93 8.32 4.65 11.44 1989 1.87 1.87 4.49 8.61 10.85 19.11 20.94 17.74 17.84 10.25 6.34 4.96 10.41 1990 2.64 2.51 6.51 8.98 17.02 17.98 19.03 21.10 15.21 11.61 8.76 ****** ****** 1991 3.08 3.26 3.79 9.80 13.78 20.52 17.41 19.30 16.24 9.29 5.82 2.59 10.41 1992 ****** ****** ****** ****** 9.26 17.92 18.38 12.59 11.25 10.88 8.27 3.98 ****** 1993 1.48 1.55 3.68 7.36 12.35 17.80 16.22 15.30 ****** ****** 4.18 3.21 ****** 1994 3.57 ****** 5.74 9.93 ****** ****** 19.18 18.48 9.15 8.89 8.88 4.43 ****** 1995 3.86 3.85 5.42 6.21 12.43 16.24 19.32 15.95 ****** 6.84 5.56 2.02 ****** 1996 1.59 2.05 2.78 5.38 9.67 17.05 15.70 16.68 14.15 8.49 3.78 4.03 8.45 1997 3.04 3.93 3.94 5.59 ****** ****** 16.53 16.93 13.58 6.01 3.02 1.98 ****** 1998 1.76 2.49 3.43 7.11 14.31 16.80 18.98 18.38 13.74 10.62 7.57 3.10 9.86 1999 3.13 3.49 3.56 5.52 17.13 19.15 18.07 20.28 16.70 9.90 4.09 4.09 10.43 2000 1.93 ****** 3.86 14.99 17.31 20.48 19.80 20.73 13.18 7.44 2.79 2.73 ****** 2001 1.55 ****** 5.00 10.24 17.87 17.79 19.46 18.02 16.79 12.62 6.60 3.94 ****** 2002 2.50 2.96 4.28 6.75 14.44 18.77 19.29 18.35 18.64 12.85 7.40 2.80 10.75 2003 2.15 2.76 3.84 5.33 7.36 13.56 16.50 17.00 12.75 8.37 5.19 2.65 8.12 MEAN 2.62 3.08 4.94 8.92 13.86 19.27 19.85 18.91 15.02 9.95 6.68 3.84 10.58 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** 29 26 30 40 33 45 *** 1971 47 45 38 44 28 25 27 28 31 37 47 51 37 1972 70 69 64 51 45 41 33 32 33 38 49 69 50 1973 75 64 56 39 37 31 *** 29 35 41 45 61 *** 1974 78 74 61 47 37 34 *** 32 40 50 51 64 *** 1975 69 *** 59 51 40 31 32 38 47 61 *** *** *** 1976 58 69 72 62 58 35 41 40 45 49 59 64 54 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 64 70 63 49 45 39 33 31 40 50 60 57 50 1979 64 66 *** 48 50 43 *** 32 35 *** 49 55 *** 1980 68 70 66 57 50 35 38 36 37 39 43 62 50 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 71 72 49 46 *** 28 19 28 36 34 43 *** *** 1985 71 50 60 49 39 33 38 44 *** *** *** 67 *** 1986 63 73 67 63 50 35 42 36 37 46 58 72 54 1987 *** 61 55 53 43 36 40 35 *** 51 53 52 *** 1988 61 67 57 56 42 41 39 36 37 46 48 58 49 1989 73 75 65 48 50 40 38 40 37 48 54 59 52 1990 68 73 56 51 39 41 40 39 38 45 41 *** *** 1991 69 65 67 49 47 42 48 41 41 44 56 76 54 1992 *** *** *** *** 59 49 44 45 45 40 46 63 *** 1993 74 81 70 63 51 43 50 51 *** *** 62 67 *** 1994 61 *** 54 46 *** *** 38 38 50 51 47 53 *** 1995 53 58 55 58 48 46 42 44 *** 60 59 73 *** 1996 71 75 75 67 56 48 51 48 52 58 65 61 61 1997 62 59 64 60 *** *** 50 52 52 68 70 76 *** 1998 78 72 73 66 48 47 45 43 47 49 52 69 57 1999 61 65 68 65 42 43 45 37 40 51 62 50 52 2000 73 *** 65 43 44 38 39 39 48 57 74 67 *** 2001 69 *** 60 53 40 45 43 44 44 45 50 60 *** 2002 60 67 64 61 48 42 44 45 41 46 58 69 54 2003 71 70 66 68 64 56 51 49 51 56 64 71 61 MEAN 67 67 62 54 46 40 40 39 41 48 54 63 52 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** 38 35 41 54 46 62 *** 1971 63 61 52 60 37 34 36 34 40 49 59 62 49 1972 82 79 74 63 56 53 42 42 46 47 63 82 61 1973 87 77 68 51 49 41 *** 38 49 57 62 78 *** 1974 86 82 74 58 47 44 *** 40 48 62 64 75 *** 1975 81 *** 71 65 51 40 41 47 58 70 *** *** *** 1976 66 76 79 70 68 46 49 49 54 61 74 81 64 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 75 83 76 66 59 53 42 40 50 64 72 68 62 1979 75 76 *** 60 63 57 *** 40 43 *** 62 70 *** 1980 80 81 76 67 61 47 48 44 47 49 53 81 61 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 82 82 60 58 *** 34 25 34 45 44 53 *** *** 1985 84 65 68 60 48 41 46 54 *** *** *** 75 *** 1986 74 82 76 72 59 42 48 48 47 58 68 81 63 1987 *** 73 68 62 54 46 50 44 *** 60 63 64 *** 1988 74 75 68 65 54 50 46 46 46 54 59 68 59 1989 84 84 76 58 60 47 45 52 50 61 68 71 63 1990 78 83 72 65 50 52 49 55 51 57 51 *** *** 1991 77 77 76 64 64 66 70 61 54 55 65 85 68 1992 *** *** *** *** 70 65 55 54 57 48 58 75 *** 1993 83 88 77 72 65 64 73 78 *** *** 71 77 *** 1994 73 *** 62 55 *** *** 46 46 58 58 52 64 *** 1995 68 68 62 66 57 52 49 51 *** 67 67 83 *** 1996 80 83 83 77 63 57 61 55 62 65 72 70 69 1997 74 68 72 68 *** *** 58 65 64 74 77 83 *** 1998 89 82 79 72 58 64 58 57 55 58 58 76 67 1999 70 72 76 71 50 51 54 43 48 59 69 62 60 2000 82 *** 73 50 53 42 46 47 56 63 83 75 *** 2001 79 *** 74 65 54 58 58 60 57 53 62 69 *** 2002 73 75 71 68 58 52 51 53 47 59 64 82 63 2003 78 78 75 77 72 66 61 61 57 64 71 80 70 MEAN 78 77 72 64 57 51 50 49 51 58 64 74 62 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** 22 20 22 25 21 28 *** 1971 31 29 26 29 21 19 21 22 24 25 35 39 27 1972 58 58 51 38 35 33 26 24 22 28 36 50 38 1973 63 50 42 29 28 23 *** 22 23 27 31 41 *** 1974 67 65 48 35 27 26 *** 25 32 36 37 52 *** 1975 57 *** 47 38 29 23 22 28 35 51 *** *** *** 1976 50 61 64 52 49 24 32 31 35 35 42 44 43 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 52 57 49 32 30 24 25 22 28 35 47 45 37 1979 53 55 *** 34 34 29 *** 24 27 *** 36 41 *** 1980 57 59 55 46 39 23 29 28 29 28 33 45 39 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 57 63 38 34 *** 23 15 23 28 26 35 *** *** 1985 60 37 50 38 31 28 31 36 *** *** *** 60 *** 1986 51 64 57 55 43 29 37 24 27 36 49 64 45 1987 *** 49 42 44 32 26 31 25 *** 40 44 39 *** 1988 51 60 47 47 30 32 34 26 30 36 39 47 40 1989 61 65 54 38 42 35 32 28 28 35 43 48 42 1990 56 63 41 34 30 29 32 29 26 35 32 *** *** 1991 61 53 58 39 34 27 34 28 31 33 46 68 43 1992 *** *** *** *** 49 38 37 36 31 33 31 50 *** 1993 63 72 63 55 42 32 37 37 *** *** 53 59 *** 1994 50 *** 48 38 *** *** 32 31 42 45 43 42 *** 1995 38 49 47 51 41 40 35 38 *** 53 51 61 *** 1996 61 66 67 58 49 40 44 43 43 51 59 53 53 1997 52 51 56 54 *** *** 44 44 43 61 63 68 *** 1998 68 64 68 61 42 37 37 33 40 43 45 62 50 1999 49 56 61 60 36 37 38 32 35 42 54 32 44 2000 65 *** 59 37 37 34 35 33 42 51 64 59 *** 2001 56 *** 49 42 32 37 35 35 36 38 38 52 *** 2002 47 60 58 55 39 36 39 39 36 36 51 60 46 2003 64 63 58 61 57 49 44 41 44 50 56 63 54 MEAN 55 57 52 44 37 31 33 30 32 38 43 51 42 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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 1970 *** *** *** *** *** *** 0 0 0 1 0 0 *** 1971 0 2 3 2 0 0 0 0 0 0 0 1 8 1972 4 3 4 0 0 0 0 0 0 0 0 1 12 1973 1 3 0 0 0 0 *** 0 0 0 0 0 *** 1974 4 4 4 3 1 0 *** 0 0 0 0 1 *** 1975 2 *** 6 6 0 0 0 0 0 0 *** *** *** 1976 1 4 9 12 0 0 0 0 0 0 1 1 28 1977 *** *** *** *** *** *** *** *** *** *** *** *** *** 1978 5 6 2 0 1 0 0 0 0 0 2 1 17 1979 4 2 *** 3 1 0 *** 0 0 *** 0 1 *** 1980 7 6 3 0 0 0 0 0 0 0 0 0 16 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 2 0 2 0 *** 0 0 0 0 0 0 1 *** 1985 3 0 1 1 0 0 0 0 0 *** *** 2 *** 1986 0 4 8 3 0 0 0 0 0 0 1 2 18 1987 *** 1 3 2 1 0 0 0 0 1 0 1 *** 1988 1 0 5 2 0 0 0 0 0 0 0 4 12 1989 2 1 5 0 0 0 0 0 0 0 1 2 11 1990 5 7 1 4 1 0 0 0 0 0 0 *** *** 1991 2 2 6 2 1 0 0 0 0 0 1 3 17 1992 *** *** *** *** 0 1 0 0 0 0 0 4 *** 1993 6 6 3 4 1 0 0 0 *** *** 1 0 *** 1994 3 *** 4 0 *** *** 0 0 0 0 0 2 *** 1995 1 2 2 4 0 0 0 0 *** 0 0 2 *** 1996 2 6 10 0 0 0 0 0 0 1 0 1 20 1997 2 1 6 7 0 0 0 0 0 1 1 5 23 1998 4 2 5 1 0 0 0 0 0 0 0 0 12 1999 2 6 4 0 0 0 0 0 0 0 0 0 12 2000 2 *** 1 0 0 0 0 0 0 1 3 5 *** 2001 1 *** 2 0 0 0 0 0 0 0 0 3 *** 2002 4 5 1 5 0 0 0 0 0 0 2 4 21 2003 3 2 3 1 2 0 0 0 0 0 0 0 11 MEAN 3 3 4 2 0 0 0 0 0 0 0 2 14 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. HIGHEST AND LOWEST LIMITS FOR 34 YEARS DURING 1970-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 12.0 11.8 16.8 24.0 27.4 36.0 29.8 28.0 27.2 22.0 16.8 13.0 1 YEAR - DAY 1976-13 1987-27 1971-15 1979-10 1988-29 1988-24 1988-19 1970-17 1989-13 1989- 1 1986- 5 1989- 5 LOW. DRY 03 -18.4 -17.0 -11.6 -4.4 -5.2 10.2 14.0 7.4 0.2 -5.0 -10.0 -16.8 2 YEAR - DAY 2001-27 1972- 1 2001-12 1996- 4 2003- 1 1992- 1 1970-20 1972-28 1973-30 1970-24 1976-15 2003-13 HIG. WET 03 7.4 7.4 11.2 16.8 19.8 19.6 19.6 18.4 18.6 15.0 11.0 9.8 3 YEAR - DAY 1976-13 1980- 2 1984-29 1986-30 1976-31 1988-23 1988-10 1996- 7 1989-10 1975- 7 1987- 7 1989- 4 LOW. WET 03 -19.2 -18.2 -12.8 -6.2 -7.6 5.8 7.8 2.0 -2.0 -6.4 -10.0 -17.4 4 YEAR - DAY 2001-27 1972- 1 2001-12 1996- 5 2003- 1 1992- 1 1975- 4 1972-28 1972-20 1970-24 1976-15 2003-13 HIG. DRY 09 19.0 19.4 25.8 30.0 33.8 38.4 36.0 38.4 34.0 31.0 30.8 22.0 5 YEAR - DAY 1976-19 1985-26 1971-29 1979-10 1973-31 1980-11 1976- 2 1998- 3 1975-11 1980- 1 1988- 9 1978-12 LOW. DRY 09 -10.4 -8.8 -4.0 1.0 4.0 16.8 16.8 17.0 12.8 6.4 -2.4 -9.8 6 YEAR - DAY 1996-14 1972- 1 1985- 4 1994- 7 1992- 1 1990- 2 1972-11 1992-31 1973-30 1987-28 1987-30 1986-11 HIG. WET 09 12.4 13.8 15.8 20.2 25.0 24.8 24.8 28.4 23.6 19.8 17.8 15.2 7 YEAR - DAY 1976-23 1985-26 1999-29 1976-26 1976-23 1999-26 1976-20 1998- 1 1996- 9 1975- 9 2002-21 1978-12 LOW. WET 09 -11.8 -9.2 -5.2 -1.4 1.4 10.0 10.8 6.8 4.6 1.0 -3.0 -9.8 8 YEAR - DAY 1996-14 1972- 1 1985- 4 1994- 7 1992- 1 1975- 9 1984- 8 1992-20 1973-30 1987-16 1987-30 1986-11 HIG. DRY 15 14.0 15.2 21.6 25.8 30.0 34.0 33.0 31.0 29.8 26.4 21.2 15.0 9 YEAR - DAY 1976-22 1985-26 1990-15 2000-30 1991-30 1988-23 1998- 6 1990-22 2003-24 1986- 5 1986- 4 1989- 4 LOW. DRY 15 -13.8 -13.0 -6.0 -2.6 2.2 13.6 18.8 13.0 5.6 3.0 -4.6 -13.2 10 YEAR - DAY 1972-31 1972- 3 1985- 4 1996- 4 1992- 1 1990- 2 1972-18 1972-25 1973-30 1976-30 1987-30 1986-11 HIG. WET 15 8.6 10.6 18.2 19.8 21.4 22.2 22.0 22.2 21.6 17.4 14.6 10.2 11 YEAR - DAY 1976-22 1985-26 1988-21 1988-26 1991-30 1992-30 1992- 2 1996- 6 1987- 6 1997- 3 1987- 7 1989- 6 LOW. WET 15 -13.8 -13.0 -7.2 -3.2 0.6 8.4 10.0 5.6 0.4 -1.2 -4.8 -13.2 12 YEAR - DAY 1972-31 1972- 1 1985- 4 1996- 4 1989- 1 1984-18 1972-11 1972-25 1973-30 1970-23 1987-30 1986-11 HIG. MIN. 6.0 10.5 15.0 17.4 19.0 24.0 24.5 22.5 19.0 17.0 12.5 10.0 13 YEAR - DAY 1976-24 1987-28 1971-15 1972-22 1971-30 1975-25 1971-11 1984-21 1971- 3 1970- 9 1986- 5 1972- 1 LOW. MIN. -20.4 -17.6 -12.4 -5.0 -8.8 5.0 7.4 5.5 -0.4 -5.0 -11.0 -17.8 14 YEAR - DAY 2001-27 1972- 1 2001-12 1996- 4 2003- 1 1980-15 1980- 2 1972-28 1973-30 1970-24 1976-15 2003-13 HIG. MAX. 20.0 22.0 26.0 30.5 37.0 41.0 37.0 36.0 34.0 31.2 28.0 22.4 15 YEAR - DAY 1976-19 1985-26 1971-29 1987-26 2001- 9 1973-30 1978-14 1970- 5 1975-11 1980- 1 2001- 4 1978-12 LOW. MAX. -10.0 -7.2 -2.0 6.0 6.0 21.0 23.0 19.0 13.0 7.6 -1.5 -8.0 16 YEAR - DAY 1996-14 1972- 1 1990-22 1994- 7 1989- 1 1990- 2 1992-31 1972-25 1973-30 1976-30 1987-30 1986-11 HIG. PPTN 20.0 23.0 27.0 24.0 7.0 5.0 0.0 0.0 2.0 7.0 17.0 24.0 17 YEAR - DAY 2001-28 1972-11 1972-11 1991- 1 1979-16 1992- 1 999-** 999-** 1996-23 2000- 6 2000- 7 2001-31 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 34 YEARS DURING 1970-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 20.8 20.2 18.8 21.0 19.0 18.2 18.4 18.0 19.2 20.0 27.4 24.0 18 YEAR - DAY 2001-30 1978-16 1971-17 1978-30 1980- 6 1980-15 1975- 4 1974-22 1972-13 1973- 4 1993- 1 1999-20 DRY 15 - DRY 09 13.2 14.0 14.6 13.0 10.0 14.0 10.0 11.8 11.8 14.0 14.2 19.8 19 YEAR - DAY 1971- 8 1978-16 1974-30 1978-30 1978-24 1980-17 1975-14 1998- 3 1970-30 1974- 3 1978- 6 1980-15 DRY 15 - DRY 03 15.6 12.4 13.4 13.6 12.8 13.0 12.8 12.6 16.0 16.0 20.6 18.4 20 YEAR - DAY 2001-31 1972-13 2001-12 1972-20 1991-31 2003-28 1975- 4 1972-31 1972-13 1984- 9 1993- 1 1999- 8 WET 09 - WET 03 19.6 14.8 15.6 14.0 13.8 12.0 11.4 14.6 13.0 15.0 23.2 21.4 21 YEAR - DAY 2001-30 1972-13 2001-12 2001- 8 1992-27 1992- 1 1978-15 1998- 1 1976-16 1970-19 1993- 1 1999- 8 WET 15 - WET 09 10.2 10.2 9.4 7.6 9.4 8.2 7.8 11.6 6.6 9.4 11.0 12.4 22 YEAR - DAY 1978-21 1978-16 1980- 3 1996- 5 1973-10 1988-11 1976-20 1998- 1 1976-19 1970-19 1978- 6 1980-15 WET 15 - WET 03 15.2 12.4 13.6 11.0 11.2 10.8 8.4 8.8 12.2 10.8 16.4 18.0 23 YEAR - DAY 2001-31 2002- 2 2001-12 2001- 8 1987- 9 1992- 1 1975- 4 1974-23 1980-26 1975-11 1993- 1 1999-20 DAY BY DAY DRY 03 14.0 22.6 17.6 13.4 11.4 11.4 8.6 8.4 10.8 12.2 15.4 13.0 24 YEAR - DAY 1973-28 1980- 3 1990-20 1973- 1 1989- 1 1978-10 1986-23 1974-19 1973-27 1984-21 1986-15 1980-11 DAY BY DAY WET 03 13.2 20.6 14.4 10.4 11.4 12.0 7.0 6.4 11.6 8.8 13.0 10.4 25 YEAR - DAY 1972-20 1980- 3 1990-20 1986-30 2003- 1 1980- 1 1992- 1 1972- 5 1989-10 1989-16 1986-15 1973-13 DAY BY DAY DRY 09 17.2 15.2 18.8 15.7 13.0 11.6 12.2 9.4 10.6 14.6 15.6 15.2 26 YEAR - DAY 1993-14 1980- 3 1990-20 1985-20 1990-26 1980-12 1972-11 1971-25 1991-29 1984-21 1978- 2 1986-10 DAY BY DAY WET 09 15.6 11.6 11.8 10.6 10.0 7.4 8.6 10.4 7.2 10.2 9.6 12.4 27 YEAR - DAY 1993-14 1980- 3 1990-20 1980-30 1988- 5 1976-21 1992- 3 1998- 1 1979-13 1970-19 1993-30 1986-10 DAY BY DAY DRY 15 14.0 16.0 20.2 15.4 12.0 10.4 9.4 6.6 13.0 16.0 15.4 13.2 28 YEAR - DAY 1986-21 1984-15 1990-20 1971-26 1978-24 1990- 3 1987- 4 1978-31 1979-28 1984-21 1978- 2 2002-23 DAY BY DAY WET 15 12.0 11.6 15.8 12.0 8.6 7.6 6.8 6.4 8.0 9.4 11.8 12.8 29 YEAR - DAY 1993-14 1980- 3 1990-20 1980-30 1980-17 1988-12 1992- 3 1991- 4 1980-27 1984-21 1978- 2 2002-23 DAY BY DAY MIN. 13.4 18.0 16.6 12.0 11.2 12.2 7.0 8.0 10.2 10.5 13.0 11.4 30 YEAR - DAY 1973-28 1980- 3 1971-17 1984-27 2003- 1 1980- 1 1975-30 1974-13 1978- 7 1970-10 1973-26 2002- 3 DAY BY DAY MAX. 13.0 13.6 16.7 14.0 13.0 11.8 7.6 7.2 11.2 14.0 15.2 14.4 31 YEAR - DAY 1993-14 1972-21 1990-21 1985-20 1980- 6 1980-12 1978- 3 1974-30 1972-19 1978-23 1978- 2 2002-23 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MEAN AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** 23.3 24.4 17.0 13.3 10.9 5.5 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 16.6 17.9 9.9 4.7 2.9 -1.0 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 29.7 31.0 24.1 22.0 19.0 12.0 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** 13.1 13.1 14.2 17.3 16.1 13.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** 6.39 6.44 4.36 3.60 2.74 2.72 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** 6.22 6.91 4.68 4.87 3.55 2.86 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** 6.32 5.89 4.25 4.95 3.07 2.68 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 13.0 14.0 2.6 -5.0 -5.0 -8.5 ****** DAY ** ** ** ** ** ** 1 29 22 24 15 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 33.0 36.0 29.0 29.0 24.0 19.6 ****** DAY ** ** ** ** ** ** 15 5 8 8 3 13 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** 0.0 0.0 0.0 6.0 0.0 2.0 ****** DAY ** ** ** ** ** ** ** ** ** 26 ** 15 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** 0.0 0.0 0.0 6.0 0.0 2.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** 0.0 100.0 NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** 0 0 0 1 0 1 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** 0 0 0 1 0 1 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** 0 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** 35 33 40 50 42 60 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** 22 22 22 26 23 28 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** 29 24 28 44 34 47 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 1 1 9 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 2 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 9 23 0 0 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. *** *** *** *** *** *** 0 0 0 5 7 20 *** DATE OF START AND END FREEZING START = 22 OCT. END = 31 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MEAN AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.0 5.0 10.8 14.0 19.6 23.0 23.8 21.8 16.2 12.4 10.2 7.2 13.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.6 -0.9 4.3 7.6 12.3 16.4 17.9 14.9 9.4 4.0 3.7 1.6 7.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.7 10.8 17.3 20.4 26.8 29.6 29.6 28.7 23.1 20.9 16.7 12.7 20.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.3 11.7 13.0 12.8 14.5 13.2 11.7 13.8 13.7 16.9 13.0 11.1 13.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.96 2.90 3.19 4.84 4.83 5.78 6.51 5.42 4.18 3.23 4.00 3.59 4.20 MEAN OF MIXING RATIO AT 09 GMT. 2.48 2.74 3.45 4.67 5.35 5.53 6.11 6.34 4.91 4.50 4.68 4.12 4.58 MEAN OF MIXING RATIO AT 15 GMT. 2.23 3.02 3.55 5.03 4.94 4.92 6.10 5.57 4.58 4.65 4.52 3.80 4.41 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.0 -12.0 -3.0 1.2 5.0 12.0 13.0 10.5 1.0 -4.0 -1.0 -7.0 -14.0 DAY 26 3 2 11 1 2 5 9 29 20 2 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.0 16.8 26.0 27.6 33.0 32.6 34.2 31.2 31.0 28.0 23.0 19.0 34.2 DAY 5 22 29 24 24 22 11 5 1 6 4 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 9.0 7.0 15.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 7.0 15.0 DAY ** 24 8 12 ** ** ** ** ** ** 12 30 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 20.6 24.6 32.5 0.0 0.0 0.0 0.0 0.0 0.0 5.0 11.5 94.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 48.0 34.5 0.0 17.5 NO. OF DAYS WITH PRECIPITATION. 0 6 5 4 0 0 0 0 0 0 2 4 21 NO. OF DAYS PRECIPITATION EQUAL 0 6 5 4 0 0 0 0 0 0 2 3 20 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 2 0 0 0 0 0 0 0 0 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 59 56 48 57 37 34 35 34 39 44 57 60 47 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 33 31 27 30 21 19 21 23 24 25 35 41 28 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 50 48 39 45 26 22 26 26 30 43 50 51 38 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 7 0 0 0 0 0 0 0 1 0 1 31 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 3 2 0 0 0 0 0 0 0 0 0 0 5 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 11 16 14 8 2 0 0 0 51 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 18 10 0 0 0 0 0 0 4 3 8 72 DATE OF START AND END FREEZING START = 19 OCT. END = 24 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MEAN AND EXTREMES FOR THE YEAR 1972 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -0.3 -3.2 7.8 13.6 15.9 21.7 22.5 19.3 17.0 14.4 10.3 2.1 11.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.3 -8.9 3.1 6.9 9.0 14.2 16.3 12.9 8.5 6.2 3.3 -2.7 5.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.8 2.5 12.5 20.3 22.9 29.2 28.7 25.8 25.5 22.6 17.3 6.9 18.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.1 11.4 9.4 13.4 13.9 15.0 12.4 12.9 17.0 16.4 14.0 9.6 12.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.83 2.14 4.61 5.47 5.98 8.72 7.11 5.87 4.64 3.72 3.94 3.37 4.87 MEAN OF MIXING RATIO AT 09 GMT. 3.83 3.64 5.20 6.35 6.97 9.86 7.60 5.80 5.42 5.45 4.80 3.61 5.71 MEAN OF MIXING RATIO AT 15 GMT. 3.53 2.74 5.43 6.34 6.67 8.70 7.00 5.41 5.51 5.21 4.71 4.00 5.44 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.5 -17.6 -5.5 1.0 2.2 10.0 12.0 5.5 1.0 2.4 -5.0 -14.0 -17.6 DAY 31 1 4 17 25 19 30 28 20 21 22 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 14.4 22.0 27.0 30.8 36.2 35.0 30.0 32.0 26.2 25.0 17.0 36.2 DAY 15 18 31 12 30 24 2 2 14 7 6 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 23.0 27.0 3.5 3.0 3.0 0.0 0.0 0.0 0.0 0.0 6.0 27.0 DAY 20 11 11 2 10 27 ** ** ** ** ** 6 MONTHLY TOTAL PRECIPITATION IN MM. 41.0 55.5 65.5 11.0 11.5 3.0 0.0 0.0 0.0 0.0 0.0 9.0 196.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 82.4 13.0 0.0 4.6 NO. OF DAYS WITH PRECIPITATION. 8 5 8 5 6 1 0 0 0 0 0 2 35 NO. OF DAYS PRECIPITATION EQUAL 8 5 8 4 5 1 0 0 0 0 0 2 33 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 2 0 0 0 0 0 0 0 0 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 67 69 61 52 53 40 41 43 43 57 79 56 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 68 53 39 35 34 28 25 24 28 37 50 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 70 70 52 47 38 32 30 32 42 55 77 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 22 1 0 0 0 0 0 0 0 1 14 56 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 0 0 0 0 0 3 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 7 12 0 0 0 0 0 0 0 0 0 4 23 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 12 8 1 4 0 0 0 26 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 25 26 6 0 0 0 0 0 0 0 7 21 85 DATE OF START AND END FREEZING START = 22 NOV. END = 29 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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. -1.5 6.9 9.1 15.9 19.3 24.3 ***** 23.3 17.0 14.3 10.1 3.6 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -6.5 1.1 3.2 9.3 11.4 17.2 ***** 17.3 8.5 5.3 2.3 -3.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.5 12.6 14.9 22.6 27.2 31.2 ***** 29.3 25.5 23.3 18.0 10.4 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.0 11.5 11.7 13.3 15.8 14.0 ***** 12.0 17.0 18.0 15.7 13.6 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.81 4.13 4.30 5.05 5.81 6.95 ***** 6.35 5.30 4.54 3.54 3.18 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.68 5.33 5.02 5.58 7.33 7.65 ***** 6.30 5.48 5.53 4.54 3.67 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.37 5.12 5.30 5.67 6.24 6.78 ***** 6.12 5.41 5.35 3.84 3.60 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.0 -5.8 -7.0 1.5 6.8 12.4 ***** 11.0 -0.4 -2.0 -5.0 -10.0 ****** DAY 26 3 11 12 15 3 ** 28 30 1 9 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.8 19.2 23.4 30.0 35.0 41.0 ***** 33.0 31.6 30.0 25.0 16.0 ****** DAY 29 21 22 27 31 30 ** 4 3 31 1 18 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 11.0 3.0 1.0 0.0 0.0 ***** 0.0 0.0 0.0 0.0 2.0 ****** DAY 11 23 15 5 ** ** ** ** ** ** ** 31 MONTHLY TOTAL PRECIPITATION IN MM. 12.5 36.5 18.5 1.5 0.0 0.0 ***** 0.0 0.0 0.0 0.0 2.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 95.1 2.1 0.0 2.8 NO. OF DAYS WITH PRECIPITATION. 6 7 11 2 0 0 *** 0 0 0 0 1 *** NO. OF DAYS PRECIPITATION EQUAL 6 6 11 1 0 0 *** 0 0 0 0 1 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 0 0 0 0 *** 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 74 65 49 46 40 *** 37 48 54 58 75 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 65 52 42 29 30 24 *** 22 23 27 32 42 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 67 61 40 35 29 *** 29 34 43 46 66 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 3 3 0 0 0 *** 0 0 0 4 14 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 *** 2 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 8 0 0 0 0 0 *** 0 0 0 0 1 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 6 23 *** 14 2 1 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 *** 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 10 7 0 0 0 *** 0 1 2 12 23 *** DATE OF START AND END FREEZING START = 30 SEP. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MEAN AND EXTREMES FOR THE YEAR 1974 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -0.1 0.2 9.1 14.3 19.1 22.5 ***** 21.5 18.6 9.8 9.8 2.8 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -4.3 -3.8 3.2 7.9 12.5 15.2 ***** 14.8 10.4 2.0 2.3 -2.8 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.1 4.3 15.0 20.6 25.8 29.9 ***** 28.2 26.7 17.6 17.3 8.4 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.4 8.1 11.8 12.7 13.3 14.7 ***** 13.4 16.3 15.6 15.0 11.2 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.24 3.17 4.67 5.01 6.47 7.15 ***** 5.92 5.56 3.83 3.67 3.00 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.99 3.98 5.59 5.69 6.50 7.85 ***** 6.86 7.81 5.15 5.26 4.21 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.86 3.81 5.49 5.61 6.48 7.15 ***** 6.14 6.89 4.88 4.41 3.96 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -17.0 -6.0 0.0 6.0 10.5 ***** 10.0 6.5 -2.0 -2.0 -7.8 ****** DAY 5 4 7 13 1 25 ** 17 22 28 17 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 11.0 26.0 27.0 33.0 34.0 ***** 33.4 33.0 27.4 26.0 16.4 ****** DAY 15 26 18 28 24 3 ** 22 21 3 2 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 12.0 16.0 16.0 5.0 0.0 ***** 0.0 0.0 0.0 0.0 11.0 ****** DAY 24 15 26 2 7 ** ** ** ** ** ** 14 MONTHLY TOTAL PRECIPITATION IN MM. 67.0 54.0 50.0 38.5 5.0 0.0 ***** 0.0 0.0 0.0 0.0 13.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 75.2 19.1 0.0 5.7 NO. OF DAYS WITH PRECIPITATION. 7 13 7 7 1 0 *** 0 0 0 0 2 *** NO. OF DAYS PRECIPITATION EQUAL 7 13 7 7 1 0 *** 0 0 0 0 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 2 1 0 0 *** 0 0 0 0 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 76 72 54 46 44 *** 40 46 59 59 68 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 68 48 36 28 27 *** 25 32 36 37 55 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 82 79 65 49 37 32 *** 31 40 55 57 67 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 17 15 6 0 0 0 *** 0 0 0 0 13 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 *** 1 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 7 0 0 0 0 *** 0 0 0 0 2 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 3 17 *** 7 7 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 17 9 1 0 0 *** 0 0 11 13 24 *** DATE OF START AND END FREEZING START = 4 OCT. END = 13 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MEAN AND EXTREMES FOR THE YEAR 1975 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -0.1 ***** 8.2 12.8 17.3 22.8 25.0 22.2 19.1 12.3 ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -5.5 ***** 3.0 6.7 10.1 15.8 18.4 15.8 12.1 5.1 ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.4 ***** 13.4 18.9 24.6 29.8 31.7 28.7 26.2 19.5 ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.9 ***** 10.4 12.2 14.5 14.0 13.3 12.9 14.1 14.4 ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.74 ***** 4.44 5.29 6.01 6.69 8.19 7.89 7.55 5.84 ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 3.89 ***** 5.23 5.70 6.33 7.22 7.62 7.89 8.78 8.42 ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 3.46 ***** 4.94 5.78 6.47 6.39 8.02 8.39 8.64 7.88 ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.8 ***** -7.0 -2.2 3.0 7.0 12.0 10.0 7.0 -2.0 ***** ***** ****** DAY 17 ** 9 4 5 10 30 23 22 21 ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.2 ***** 26.0 27.0 29.8 34.8 34.5 33.4 34.0 31.0 ***** ***** ****** DAY 18 ** 21 17 29 23 5 16 11 4 ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 ***** 13.0 12.0 2.0 0.0 0.0 0.0 0.0 0.0 ***** ***** ****** DAY 22 ** 19 23 10 ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 37.0 ***** 70.0 62.0 2.0 0.0 0.0 0.0 0.0 0.0 ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 62.6 37.4 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. 9 *** 9 11 1 0 0 0 0 0 *** *** *** NO. OF DAYS PRECIPITATION EQUAL 9 *** 9 11 1 0 0 0 0 0 *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 *** 4 2 0 0 0 0 0 0 *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 *** 68 62 47 40 41 46 57 67 *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 *** 49 38 30 24 23 29 36 52 *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 *** 60 51 42 28 33 40 47 63 *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 *** 4 0 0 0 0 0 0 0 *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 *** 0 0 0 4 6 3 0 0 *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 4 *** 2 0 0 0 0 0 0 0 *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 16 28 15 8 2 *** *** *** 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. 29 *** 6 1 0 0 0 0 0 4 *** *** *** DATE OF START AND END FREEZING START = 21 OCT. END = 4 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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. 7.1 4.3 5.1 14.3 20.8 23.0 25.1 23.1 18.5 14.5 4.6 2.9 13.6 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.4 -0.3 1.0 9.1 14.8 15.9 19.0 16.9 10.3 6.2 -2.8 -3.4 7.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.7 8.9 9.2 19.6 26.8 30.1 31.2 29.3 26.6 22.7 12.0 9.2 19.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.3 9.2 8.2 10.5 12.0 14.2 12.2 12.4 16.3 16.5 14.8 12.6 12.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.24 3.62 4.34 7.41 11.41 7.59 9.24 8.35 6.84 5.62 3.25 3.16 6.26 MEAN OF MIXING RATIO AT 09 GMT. 5.05 4.86 5.35 8.74 13.57 7.52 11.37 9.25 9.27 7.26 4.47 3.77 7.54 MEAN OF MIXING RATIO AT 15 GMT. 4.75 4.68 4.78 8.33 10.97 7.71 10.62 9.09 8.48 7.15 4.08 3.79 7.04 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -3.2 -3.0 0.5 9.0 12.0 15.0 11.0 5.0 0.2 -11.0 -7.0 -11.0 DAY 3 19 1 2 2 3 2 28 16 30 15 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.0 16.0 15.0 29.4 31.4 34.2 36.0 31.8 31.2 28.0 19.4 14.2 36.0 DAY 19 10 6 24 23 21 2 2 6 2 3 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 10.0 15.0 15.0 3.0 0.0 0.0 0.0 0.0 0.0 7.0 5.0 15.0 DAY 20 10 12 24 3 ** ** ** ** ** 28 28 MONTHLY TOTAL PRECIPITATION IN MM. 12.0 46.5 95.0 113.0 5.0 0.0 0.0 0.0 0.0 0.0 7.0 17.0 295.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 51.9 39.9 0.0 8.1 NO. OF DAYS WITH PRECIPITATION. 3 12 10 15 2 0 0 0 0 0 1 4 47 NO. OF DAYS PRECIPITATION EQUAL 3 12 10 15 2 0 0 0 0 0 1 4 47 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 6 5 0 0 0 0 0 0 0 0 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 63 71 76 68 65 44 44 47 52 58 73 79 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 63 65 52 50 25 34 32 36 36 43 44 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 60 73 75 66 60 37 44 40 46 54 63 71 57 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 0 0 0 0 0 0 0 0 0 12 12 26 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 4 2 0 0 0 0 8 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 17 20 23 16 3 0 0 0 79 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. 8 19 13 0 0 0 0 0 0 0 18 30 88 DATE OF START AND END FREEZING START = 6 NOV. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** 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 ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MEAN AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.9 4.6 8.5 15.9 18.1 20.9 23.9 21.5 17.6 11.8 6.6 7.5 13.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.3 -0.3 3.3 8.8 10.6 12.6 15.6 13.6 9.4 2.4 -0.9 0.9 6.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.1 9.5 13.6 23.0 25.6 29.3 32.1 29.4 25.8 21.1 14.1 14.2 20.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.4 9.8 10.3 14.2 15.0 16.7 16.5 15.8 16.4 18.7 15.0 13.3 14.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.65 4.00 4.71 6.36 6.94 8.10 7.81 6.20 6.40 4.70 3.71 3.94 5.46 MEAN OF MIXING RATIO AT 09 GMT. 4.00 5.01 5.58 6.46 6.96 6.83 8.44 6.18 6.73 6.09 5.37 5.52 6.10 MEAN OF MIXING RATIO AT 15 GMT. 3.16 4.37 5.19 6.63 7.79 8.15 7.77 6.36 7.03 5.97 4.80 4.54 5.98 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.8 -8.4 -3.0 0.4 5.0 8.0 11.6 8.2 3.0 0.0 -7.0 -5.4 -10.8 DAY 13 7 17 17 6 8 4 23 22 5 27 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 18.0 20.6 28.4 32.0 37.0 37.0 32.2 28.4 27.2 26.4 22.4 37.0 DAY 19 21 13 29 11 23 14 3 9 3 11 12 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 20.0 19.0 3.0 6.0 0.0 0.0 0.0 0.0 0.0 6.0 5.0 20.0 DAY 20 26 8 1 1 ** ** ** ** ** 19 4 MONTHLY TOTAL PRECIPITATION IN MM. 61.0 94.0 27.0 7.0 6.0 0.0 0.0 0.0 0.0 0.0 14.0 12.0 221.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 82.4 5.9 0.0 11.8 NO. OF DAYS WITH PRECIPITATION. 7 9 3 3 1 0 0 0 0 0 3 4 30 NO. OF DAYS PRECIPITATION EQUAL 7 9 3 3 1 0 0 0 0 0 3 4 30 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 4 1 0 0 0 0 0 0 0 0 0 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 79 75 65 58 52 42 39 48 62 67 64 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 57 57 49 32 31 24 25 22 29 37 48 47 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 66 74 64 50 48 40 32 31 42 52 63 60 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 8 0 0 0 0 0 0 0 0 10 8 48 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 1 0 0 0 0 0 0 0 0 0 0 4 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 11 24 15 0 0 0 0 54 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 25 14 5 0 0 0 0 0 0 5 17 16 82 DATE OF START AND END FREEZING START = 5 OCT. END = 18 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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. 3.0 2.1 ***** 16.4 15.2 20.5 ***** 20.6 19.5 ***** 10.1 5.0 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -2.6 -3.0 ***** 9.2 7.6 12.8 ***** 13.2 11.6 ***** 3.2 -0.9 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.6 7.2 ***** 23.6 23.0 28.2 ***** 28.0 27.4 ***** 16.9 11.0 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.2 10.2 ***** 14.4 15.4 15.4 ***** 14.8 15.8 ***** 13.7 11.9 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.26 3.08 ***** 6.83 6.29 8.77 ***** 6.03 5.84 ***** 4.07 3.35 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.45 4.12 ***** 7.15 6.93 7.82 ***** 6.35 6.70 ***** 5.03 3.82 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.87 3.71 ***** 7.66 7.51 8.92 ***** 6.20 6.44 ***** 4.57 3.66 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.0 -7.4 ***** 1.4 3.4 7.0 ***** 9.0 4.0 ***** -2.0 -7.0 ****** DAY 30 13 ** 30 13 29 ** 5 28 ** 22 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.4 14.2 ***** 30.0 27.0 33.0 ***** 33.4 32.2 ***** 23.0 19.0 ****** DAY 5 27 ** 10 3 24 ** 2 20 ** 1 22 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 9.0 ***** 15.0 7.0 0.0 ***** 0.0 0.0 ***** 3.0 7.0 ****** DAY 23 16 ** 29 16 ** ** ** ** ** 29 30 MONTHLY TOTAL PRECIPITATION IN MM. 47.0 18.0 ***** 30.0 12.0 0.0 ***** 0.0 0.0 ***** 5.0 17.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.4 32.6 0.0 17.1 NO. OF DAYS WITH PRECIPITATION. 10 3 *** 3 3 0 *** 0 0 *** 2 4 *** NO. OF DAYS PRECIPITATION EQUAL 10 3 *** 3 3 0 *** 0 0 *** 2 4 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 *** 1 0 0 *** 0 0 *** 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 72 *** 58 63 55 *** 39 42 *** 61 67 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 56 *** 35 35 29 *** 24 27 *** 37 43 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 70 *** 50 52 44 *** 31 36 *** 50 57 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 12 15 *** 0 0 0 *** 0 0 *** 0 13 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 *** 0 0 0 *** 0 0 *** 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 *** 0 0 0 *** 0 0 *** 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** 1 0 8 *** 5 6 *** 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. 21 23 *** 0 0 0 *** 0 0 *** 2 19 *** DATE OF START AND END FREEZING START = 22 NOV. END = 28 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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. -0.4 2.7 7.7 12.2 18.1 19.6 21.9 23.3 19.4 15.2 12.2 6.0 13.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.2 -3.6 3.0 6.7 11.7 9.3 15.0 17.8 12.0 7.1 4.9 -2.0 6.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.5 8.9 12.3 17.7 24.5 29.8 28.8 28.8 26.8 23.4 19.4 14.1 19.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.7 12.5 9.3 11.0 12.8 20.5 13.8 11.0 14.8 16.3 14.5 16.1 13.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.63 3.53 4.87 6.06 8.28 6.73 8.35 7.81 5.93 4.24 3.73 3.62 5.48 MEAN OF MIXING RATIO AT 09 GMT. 3.85 5.04 5.85 6.74 8.83 6.70 8.56 8.24 7.67 5.81 5.17 5.47 6.49 MEAN OF MIXING RATIO AT 15 GMT. 3.04 4.11 5.38 6.38 8.55 7.69 8.51 8.32 7.23 5.66 4.81 4.25 6.16 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.8 -14.0 -2.4 -2.0 5.8 5.0 7.4 14.0 3.6 3.6 -1.0 -6.0 -14.0 DAY 3 5 30 8 6 15 2 19 12 28 30 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.4 16.4 20.2 26.2 30.8 39.0 34.0 31.8 31.2 31.2 25.0 22.0 39.0 DAY 20 15 18 11 20 11 12 26 30 1 10 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.2 11.0 12.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 2.0 13.2 DAY 18 26 21 30 ** ** ** ** ** ** 29 26 MONTHLY TOTAL PRECIPITATION IN MM. 67.6 55.0 35.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 4.0 163.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 96.3 0.6 0.0 3.1 NO. OF DAYS WITH PRECIPITATION. 8 7 6 1 0 0 0 0 0 0 1 2 25 NO. OF DAYS PRECIPITATION EQUAL 8 7 6 1 0 0 0 0 0 0 1 2 25 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 1 1 0 0 0 0 0 0 0 0 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 76 72 63 57 45 46 42 44 46 47 80 58 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 60 57 48 39 23 30 29 30 28 33 45 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 73 69 60 54 38 39 37 37 42 49 59 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 13 0 0 0 0 0 0 0 0 0 4 38 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 1 0 0 0 0 1 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 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 3 15 10 10 4 1 0 0 43 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 22 4 1 0 0 0 0 0 0 1 27 86 DATE OF START AND END FREEZING START = 30 NOV. END = 8 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** 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 ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** 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 ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** 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 ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** ***** 9.8 14.1 ***** 21.7 24.8 24.3 17.0 9.9 ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** 4.5 7.8 ***** 16.7 20.3 19.0 11.0 3.7 ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.0 3.2 15.9 20.7 ***** 26.6 29.5 29.7 22.9 18.2 17.2 5.7 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** 11.4 12.9 ***** 9.9 9.3 10.7 11.9 14.5 ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.91 2.70 4.71 5.26 ***** 5.41 5.14 6.47 5.31 2.79 3.74 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 3.67 3.56 5.08 5.90 ***** 5.96 4.46 7.21 6.06 4.44 4.76 3.91 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.71 3.13 4.84 5.72 ***** 5.38 4.23 6.29 5.49 3.82 4.48 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** 1.0 0.2 ***** 12.0 16.5 15.5 4.5 -2.5 ***** ***** ****** DAY ** ** 1 5 ** 18 22 14 27 23 ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 17.6 20.2 28.0 ***** 29.5 31.0 31.5 30.0 25.5 22.0 15.0 ****** DAY 6 14 29 26 ** 10 13 2 12 6 2 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.6 3.0 8.0 3.0 ***** 0.0 0.0 0.0 0.0 0.0 0.0 5.0 ****** DAY 30 2 16 1 ** ** ** ** ** ** ** 29 MONTHLY TOTAL PRECIPITATION IN MM. 25.6 11.0 21.0 3.0 ***** 0.0 0.0 0.0 0.0 0.0 0.0 19.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 72.4 3.8 0.0 23.9 NO. OF DAYS WITH PRECIPITATION. 4 5 6 1 *** 0 0 0 0 0 0 7 *** NO. OF DAYS PRECIPITATION EQUAL 4 5 6 1 *** 0 0 0 0 0 0 7 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 0 *** 0 0 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 74 76 60 55 *** 33 25 33 44 38 50 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 68 39 38 *** 26 16 25 31 32 37 58 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 69 48 43 *** 26 17 25 33 33 45 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** 0 0 *** 0 0 0 0 0 *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** 0 0 *** 0 12 5 0 0 *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 8 0 0 *** 0 0 0 0 0 0 4 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** 0 14 19 2 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** 0 0 *** 0 0 0 0 5 *** *** *** DATE OF START AND END FREEZING START = 9 OCT. END = 29 OCT. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** 7.9 ***** 14.3 18.0 23.6 24.3 21.1 17.6 ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** 1.6 ***** 7.9 12.1 18.1 19.2 16.1 10.7 ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.7 13.8 13.8 20.6 23.8 29.1 29.3 26.1 24.6 ***** ***** 8.1 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 12.2 ***** 12.7 11.7 11.0 10.1 10.0 13.9 ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.20 3.66 4.10 5.28 5.78 7.50 8.50 8.27 5.55 ***** ***** 3.69 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.77 4.06 5.59 6.98 7.11 8.40 9.64 8.75 ***** ***** ***** 4.88 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.76 4.04 4.99 6.00 6.40 7.51 8.79 8.01 6.82 ***** ***** 4.18 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -4.6 ***** 0.5 5.5 14.0 13.4 12.0 7.5 ***** ***** ***** ****** DAY ** 8 ** 18 14 11 20 29 15 ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.5 22.0 24.5 28.5 29.0 34.0 34.5 29.0 29.0 ***** ***** 18.0 ****** DAY 23 26 20 24 22 8 28 1 27 ** ** 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.0 3.0 5.0 9.0 0.0 0.0 0.0 0.0 0.0 ***** ***** 17.0 ****** DAY 18 2 21 4 ** ** ** ** ** ** ** 6 MONTHLY TOTAL PRECIPITATION IN MM. 31.0 3.0 7.0 14.0 0.0 0.0 0.0 0.0 0.0 ***** ***** 28.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 49.4 16.9 0.0 33.7 NO. OF DAYS WITH PRECIPITATION. 5 1 2 3 0 0 0 0 0 *** *** 5 *** NO. OF DAYS PRECIPITATION EQUAL 5 1 2 3 0 0 0 0 0 *** *** 4 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 0 0 0 0 0 0 *** *** 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 62 63 54 44 39 44 53 46 *** *** 69 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 38 53 44 35 30 35 38 *** *** *** 64 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 50 64 48 39 30 36 40 39 *** *** 69 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 1 *** 0 0 0 0 0 0 *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 *** 0 0 5 10 0 0 *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 *** *** 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 12 12 0 0 *** *** 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 *** *** 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 *** *** 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** 11 *** 0 0 0 0 0 0 *** *** *** *** DATE OF START AND END FREEZING START = 7 FEB. END = 28 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** ***** ***** ***** ***** ***** 24.4 21.3 18.2 16.0 9.8 3.8 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 19.8 16.3 12.3 9.1 4.6 -1.0 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.9 7.6 10.9 18.5 25.4 27.9 29.2 26.4 24.2 23.0 14.9 7.3 18.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** 9.4 10.1 11.9 13.9 10.3 8.2 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.15 3.66 4.05 6.67 8.36 7.63 8.86 7.72 5.52 5.71 4.75 3.99 5.84 MEAN OF MIXING RATIO AT 09 GMT. 4.29 4.73 5.32 9.39 11.72 7.90 10.31 5.81 6.18 6.98 5.55 4.45 6.88 MEAN OF MIXING RATIO AT 15 GMT. 3.95 4.38 4.34 7.11 8.85 7.29 9.32 7.37 6.53 6.98 4.89 4.03 6.25 ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 16.0 13.5 7.5 2.5 -4.0 -14.2 ****** DAY ** ** ** ** ** ** 26 20 16 19 23 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 15.5 19.5 25.0 30.5 30.0 31.0 30.0 28.0 30.0 22.5 12.0 31.0 DAY 13 28 12 19 27 13 17 2 29 6 10 24 24 HOUR MAXIMUM PRECIPITATION IN MM. 1.0 14.0 22.0 17.0 0.0 0.0 0.0 0.0 0.0 0.0 7.0 15.5 22.0 DAY 24 3 26 9 ** ** ** ** ** ** 21 3 MONTHLY TOTAL PRECIPITATION IN MM. 1.0 41.0 110.0 46.5 0.0 0.0 0.0 0.0 0.0 0.0 14.5 32.5 245.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 61.9 18.9 0.0 19.1 NO. OF DAYS WITH PRECIPITATION. 1 7 11 4 0 0 0 0 0 0 4 5 32 NO. OF DAYS PRECIPITATION EQUAL 1 7 11 4 0 0 0 0 0 0 4 5 32 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 5 3 0 0 0 0 0 0 0 1 10 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 71 76 73 69 56 42 45 47 44 56 64 78 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 67 63 61 51 31 38 24 30 36 50 66 48 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 64 75 66 58 45 32 39 37 37 46 57 72 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 0 1 7 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 7 2 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 2 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 3 2 9 2 0 1 0 0 17 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. *** *** *** *** *** *** 0 0 0 0 5 9 *** DATE OF START AND END FREEZING START = 13 NOV. END = 9 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** 6.7 11.4 14.7 18.2 20.3 22.1 22.4 19.3 ***** 10.7 7.7 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** 0.9 6.3 7.8 11.4 13.7 15.6 16.1 12.8 ***** 4.1 1.1 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 12.2 16.3 21.4 25.3 27.0 28.7 28.6 25.8 19.8 17.3 14.4 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 11.3 10.0 13.6 13.8 13.3 13.1 12.5 13.0 ***** 13.1 13.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 3.82 5.37 6.41 7.50 7.79 8.98 8.54 7.60 5.20 4.51 3.89 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 4.77 5.47 6.93 7.50 6.51 8.60 6.64 ***** 6.61 5.59 4.71 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 4.41 6.09 7.29 8.33 7.20 8.94 8.86 9.05 6.14 5.32 4.34 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -4.5 0.5 0.8 4.5 8.5 10.5 11.5 7.0 ***** -5.5 -8.5 ****** DAY ** 15 31 14 7 21 5 30 24 ** 30 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 18.5 24.0 30.5 31.5 33.5 33.5 31.0 33.5 28.5 25.5 19.0 ****** DAY ** 27 15 26 24 6 9 16 6 5 7 21 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** 7.0 15.0 8.0 5.0 0.0 0.0 0.0 0.0 5.0 0.0 7.5 ****** DAY ** 18 27 4 30 ** ** ** ** 27 ** 29 MONTHLY TOTAL PRECIPITATION IN MM. ***** 7.0 34.0 15.0 8.0 0.0 0.0 0.0 0.0 5.0 0.0 7.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.6 30.1 0.0 16.3 NO. OF DAYS WITH PRECIPITATION. *** 1 4 2 2 0 0 0 0 1 0 1 *** NO. OF DAYS PRECIPITATION EQUAL *** 1 4 2 2 0 0 0 0 1 0 1 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** 0 1 0 0 0 0 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 67 61 59 49 45 48 43 49 55 58 61 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 51 44 43 34 27 33 27 *** 42 41 42 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 60 61 55 46 35 38 36 48 53 54 52 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 2 0 0 0 0 0 0 0 *** 3 4 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 *** 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 2 1 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 1 4 3 11 6 3 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. *** 10 0 0 0 0 0 0 0 *** 7 9 *** DATE OF START AND END FREEZING START = 18 NOV. END = 24 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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. 4.8 4.6 8.0 14.0 19.0 22.1 23.0 21.1 18.0 12.4 10.4 6.5 13.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.2 -0.7 2.2 7.0 11.1 13.4 16.0 14.8 10.5 4.3 2.9 1.5 6.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.0 9.8 13.8 20.9 27.0 30.9 30.0 27.3 25.6 20.6 18.0 11.5 20.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.2 10.5 11.6 13.9 15.9 17.5 14.0 12.5 15.1 16.3 15.1 10.0 13.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.59 3.85 4.46 6.78 7.62 8.79 9.13 7.52 6.38 4.68 4.12 3.96 5.91 MEAN OF MIXING RATIO AT 09 GMT. 4.36 4.81 5.21 8.38 7.36 11.46 11.35 6.28 7.09 6.27 5.82 4.62 6.92 MEAN OF MIXING RATIO AT 15 GMT. 4.19 4.35 5.50 7.82 8.55 9.77 9.61 7.55 6.82 6.58 5.59 4.37 6.72 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -9.5 -6.0 -2.5 5.0 11.0 12.0 10.5 3.0 -0.5 -4.0 -3.5 -9.5 DAY 3 8 25 4 5 7 25 27 26 4 27 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 16.5 23.0 27.0 34.0 39.0 34.0 30.0 33.5 26.0 23.5 17.0 39.0 DAY 31 3 21 15 29 23 13 30 6 22 10 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 3.5 23.0 10.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23.0 23.0 DAY 20 4 24 29 ** ** ** ** ** ** ** 20 MONTHLY TOTAL PRECIPITATION IN MM. 16.0 11.5 65.0 20.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 56.0 168.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 54.9 11.9 0.0 33.2 NO. OF DAYS WITH PRECIPITATION. 5 6 7 4 0 0 0 0 0 0 0 4 26 NO. OF DAYS PRECIPITATION EQUAL 5 5 7 4 0 0 0 0 0 0 0 4 25 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. 64 71 61 62 51 46 43 45 44 50 55 64 55 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 61 48 49 31 37 39 26 31 37 41 50 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 69 62 56 44 39 37 36 36 50 50 60 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 4 2 0 0 0 0 0 0 0 1 0 11 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 9 15 18 1 4 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. 14 14 7 3 0 0 0 0 0 1 7 9 55 DATE OF START AND END FREEZING START = 4 OCT. END = 10 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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. -0.4 0.4 7.9 11.3 15.3 22.4 23.3 21.1 19.1 13.7 9.5 7.5 12.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.4 -4.4 2.3 4.8 8.7 15.5 16.9 14.9 11.3 6.3 2.8 1.9 6.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.6 5.2 13.5 17.9 21.9 29.3 29.8 27.4 27.0 21.2 16.1 13.1 18.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.0 9.6 11.2 13.1 13.2 13.7 12.9 12.5 15.7 14.9 13.3 11.2 12.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.92 3.53 4.93 5.15 6.71 8.58 9.15 8.76 7.05 5.78 4.84 4.65 6.01 MEAN OF MIXING RATIO AT 09 GMT. 3.59 4.03 5.73 6.11 8.02 10.18 9.67 7.18 6.85 6.11 5.64 5.17 6.52 MEAN OF MIXING RATIO AT 15 GMT. 3.48 3.66 5.68 4.94 6.93 8.91 9.02 8.50 6.79 7.01 5.33 4.93 6.26 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -9.5 -1.5 0.0 -1.5 13.0 13.5 10.8 4.5 -1.0 -0.5 -4.0 -11.0 DAY 31 7 9 1 2 3 18 22 21 16 5 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.5 14.0 20.0 25.0 31.0 34.0 35.0 31.5 33.0 30.0 21.0 19.0 35.0 DAY 21 21 11 16 28 24 8 12 14 1 20 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 6.0 15.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 9.0 9.0 15.0 DAY 4 23 18 9 ** ** ** ** ** ** 8 8 MONTHLY TOTAL PRECIPITATION IN MM. 23.0 17.5 45.5 3.0 0.0 0.0 0.0 0.0 0.0 0.0 13.5 20.0 122.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 70.2 2.4 0.0 27.3 NO. OF DAYS WITH PRECIPITATION. 4 6 6 1 0 0 0 0 0 0 2 3 22 NO. OF DAYS PRECIPITATION EQUAL 4 6 6 1 0 0 0 0 0 0 2 3 22 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 0 0 0 0 0 0 0 0 0 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 79 72 56 58 45 45 51 48 56 64 67 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 69 56 45 45 37 34 29 29 35 44 49 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 76 67 43 46 38 35 39 33 53 55 60 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 18 0 0 0 0 0 0 0 0 0 1 41 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 6 0 0 0 0 0 0 0 0 0 0 9 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 13 14 5 5 1 0 0 40 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 22 7 1 4 0 0 0 0 2 2 13 82 DATE OF START AND END FREEZING START = 16 OCT. END = 4 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MEAN AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.4 3.6 8.2 12.6 20.1 21.9 22.5 23.3 18.1 15.8 10.1 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -2.4 -1.0 0.9 5.9 12.2 15.9 16.2 16.0 11.0 7.0 2.5 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.0 8.2 15.7 19.2 27.7 28.1 28.8 30.6 25.4 24.5 17.7 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.4 9.2 14.8 13.3 15.5 12.2 12.6 14.6 14.4 17.5 15.2 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.46 4.08 4.68 6.27 7.51 8.79 8.76 9.24 6.17 6.25 3.72 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 3.93 4.56 4.73 5.20 7.17 7.56 8.93 8.95 5.69 7.00 4.75 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 3.83 4.51 5.38 7.09 7.46 9.52 8.91 8.70 7.83 6.76 4.80 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.5 -8.0 -7.0 1.0 9.5 11.0 13.5 13.5 6.5 2.5 -1.0 ***** ****** DAY 30 1 22 1 1 2 27 17 18 15 16 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.5 15.0 25.0 27.5 34.5 32.0 32.5 33.0 28.0 27.0 25.0 ***** ****** DAY 24 20 15 29 24 14 29 15 1 31 1 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 18.0 6.0 11.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 ***** ****** DAY 30 11 27 12 6 ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 55.6 105.0 17.0 33.0 11.0 0.0 0.0 0.0 0.0 0.0 0.0 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 80.1 19.9 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. 9 10 4 6 4 0 0 0 0 0 0 *** *** NO. OF DAYS PRECIPITATION EQUAL 9 10 4 6 4 0 0 0 0 0 0 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 6 0 1 0 0 0 0 0 0 0 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 79 71 62 49 50 49 55 46 55 41 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 63 41 34 31 30 34 30 26 36 35 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 76 56 55 38 42 36 32 42 44 48 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 8 5 4 0 0 0 0 0 0 0 0 *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 0 1 0 0 0 0 0 0 0 0 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 10 7 6 23 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. 23 17 10 0 0 0 0 0 0 0 5 *** *** DATE OF START AND END FREEZING START = 12 NOV. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** ***** 6.6 12.4 ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** 0.6 4.8 ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.3 8.1 12.6 20.8 25.5 31.3 30.1 29.6 27.0 18.4 15.2 10.1 19.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** 12.0 16.0 ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.56 3.66 4.52 6.13 7.51 10.11 10.67 9.58 7.95 5.16 5.01 4.24 6.59 MEAN OF MIXING RATIO AT 09 GMT. 5.17 3.99 5.98 6.74 8.13 8.72 10.04 8.20 7.34 4.86 5.51 6.00 6.72 MEAN OF MIXING RATIO AT 15 GMT. 4.95 3.91 5.42 6.32 7.04 8.00 9.57 8.69 7.65 5.74 5.58 4.86 6.48 ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** -4.5 1.5 ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** 12 2 ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 16.5 18.5 27.0 36.0 34.0 35.0 34.0 31.0 21.5 18.0 16.5 36.0 DAY 30 27 26 25 31 4 7 5 17 19 8 14 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 17.0 22.0 24.0 7.0 0.0 0.0 0.0 0.0 1.0 10.0 23.0 24.0 DAY 22 22 16 1 6 ** ** ** ** 5 17 16 MONTHLY TOTAL PRECIPITATION IN MM. 15.0 42.5 76.0 38.0 12.0 0.0 0.0 0.0 0.0 1.0 10.0 38.0 232.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 57.4 21.5 0.0 21.1 NO. OF DAYS WITH PRECIPITATION. 5 9 10 4 3 0 0 0 0 1 1 5 38 NO. OF DAYS PRECIPITATION EQUAL 5 9 10 4 3 0 0 0 0 1 1 5 38 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 2 1 0 0 0 0 0 0 1 1 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 74 71 61 62 66 70 61 54 54 63 81 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 55 62 42 38 28 35 29 31 34 48 71 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 67 69 46 39 30 37 34 38 45 58 74 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** 2 0 *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** 0 0 *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 3 0 0 0 0 0 0 0 0 0 1 4 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 5 18 16 16 7 0 0 0 62 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. *** *** 14 0 *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = 22 FEB. END = 22 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** 23.5 31.9 30.3 24.4 22.5 21.2 17.9 11.7 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** 6.89 10.80 9.80 6.73 6.32 4.00 4.42 4.38 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** 9.83 12.25 10.95 7.13 5.63 6.15 4.13 4.84 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** 8.60 11.07 10.22 7.77 6.80 6.06 5.85 4.92 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** 29.5 35.0 35.0 28.0 26.0 25.5 25.0 17.0 ****** DAY ** ** ** ** 10 8 11 9 7 2 3 13 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** 0.0 5.0 0.0 0.0 0.0 0.0 0.0 9.0 ****** DAY ** ** ** ** ** 1 ** ** ** ** ** 5 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** 0.0 5.0 0.0 0.0 0.0 0.0 0.0 36.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** 12.2 0.0 87.8 NO. OF DAYS WITH PRECIPITATION. *** *** *** *** 0 1 0 0 0 0 0 6 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** 0 1 0 0 0 0 0 6 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** 0 0 0 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** 69 65 55 53 56 39 52 69 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** 51 39 38 36 32 38 32 53 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** 56 41 41 46 46 45 54 67 *** 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 *** *** *** *** 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** 0 25 20 0 0 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** 0 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.2 7.0 15.2 22.0 25.9 29.4 29.7 28.8 ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.36 3.63 4.62 7.14 7.72 8.77 10.07 10.24 ***** ***** 3.26 3.91 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.03 5.18 7.65 9.42 9.36 8.83 10.75 10.25 ***** ***** 6.07 5.82 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.30 4.42 6.02 8.34 8.29 8.66 9.65 9.09 ***** ***** 5.14 4.73 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 14.0 23.0 29.0 33.5 34.5 32.0 31.0 ***** ***** ***** ***** ****** DAY 27 22 21 22 23 18 17 1 ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 17.0 15.0 8.0 12.0 5.0 0.0 0.0 0.0 ***** ***** 10.0 0.0 ****** DAY 15 3 13 29 7 ** ** ** ** ** 8 ** MONTHLY TOTAL PRECIPITATION IN MM. 62.0 61.0 28.0 35.0 12.0 0.0 0.0 0.0 ***** ***** 14.0 0.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 71.2 22.2 0.0 6.6 NO. OF DAYS WITH PRECIPITATION. 6 6 8 4 5 0 0 0 *** *** 3 0 *** NO. OF DAYS PRECIPITATION EQUAL 6 6 8 4 5 0 0 0 *** *** 3 0 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 3 0 2 0 0 0 0 *** *** 1 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 82 73 69 64 64 73 78 *** *** 65 74 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 75 78 70 57 43 32 38 39 *** *** 57 63 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 81 67 62 46 34 38 37 *** *** 62 65 *** 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 7 1 0 0 0 0 0 0 *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 11 18 6 *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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. 4.1 ***** 8.7 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -0.7 ***** 2.7 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.9 ***** 14.5 20.2 ***** ***** 29.9 29.7 20.4 20.7 19.2 10.8 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.6 ***** 11.8 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.63 ***** 4.29 4.93 ***** ***** 7.25 6.57 5.50 5.44 4.68 2.44 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.06 ***** 5.49 7.16 ***** ***** 9.95 9.45 8.73 8.65 7.40 4.82 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.97 ***** 4.77 5.51 ***** ***** 8.05 8.18 6.84 6.97 5.75 3.95 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 ***** 0.5 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY 10 ** 6 ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.5 ***** 18.0 28.5 ***** ***** 32.0 32.0 27.0 25.0 25.0 18.0 ****** DAY 4 ** 31 22 ** ** 13 3 20 1 17 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 17.0 ***** 8.0 3.0 ***** ***** 0.0 0.0 0.0 2.0 0.0 9.0 ****** DAY 24 ** 1 6 ** ** ** ** ** 19 ** 5 MONTHLY TOTAL PRECIPITATION IN MM. 36.0 ***** 33.0 3.0 ***** ***** 0.0 0.0 0.0 3.0 0.0 15.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 76.7 3.3 0.0 20.0 NO. OF DAYS WITH PRECIPITATION. 5 *** 6 1 *** *** 0 0 0 2 0 2 *** NO. OF DAYS PRECIPITATION EQUAL 5 *** 6 1 *** *** 0 0 0 2 0 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 *** 0 0 *** *** 0 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 *** 59 51 *** *** 46 43 50 53 47 47 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 52 *** 49 44 *** *** 34 34 53 51 49 53 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 62 *** 54 43 *** *** 34 38 48 50 46 58 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 *** 0 *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 *** 0 *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 *** *** 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 *** *** 18 16 0 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. 18 *** 0 *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = 7 JAN. END = 28 JAN. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** ***** ***** ***** 17.0 22.0 23.8 21.2 ***** 14.0 9.5 2.3 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** 11.2 15.4 16.8 14.7 ***** 7.8 2.4 -2.3 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.1 9.6 14.0 ***** 24.6 28.6 30.7 27.7 ***** 20.1 16.6 7.0 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** 13.4 13.2 13.9 13.0 ***** 12.3 14.2 9.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.20 2.84 3.59 5.12 6.56 8.01 8.61 7.27 ***** 5.74 3.86 3.06 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.81 4.16 5.57 7.87 9.08 11.17 11.68 10.19 ***** 9.28 7.16 4.84 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.56 3.78 4.81 6.20 7.84 9.49 9.60 9.19 ***** 7.92 6.07 4.35 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** 7.6 11.0 13.5 9.0 ***** 3.0 -7.6 -7.6 ****** DAY ** ** ** ** 18 19 15 29 ** 27 28 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 17.0 19.0 ***** 34.0 36.0 36.0 31.0 ***** 27.0 23.0 13.5 ****** DAY 2 5 25 ** 8 26 1 2 ** 9 17 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 7.0 14.0 17.5 0.0 0.0 0.0 0.0 ***** 4.0 0.0 6.0 ****** DAY 19 7 21 24 ** ** ** ** ** 23 ** 7 MONTHLY TOTAL PRECIPITATION IN MM. 7.0 14.0 28.0 40.5 0.0 0.0 0.0 0.0 ***** 6.0 0.0 15.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.3 36.7 0.0 19.0 NO. OF DAYS WITH PRECIPITATION. 2 3 4 6 0 0 0 0 *** 2 0 5 *** NO. OF DAYS PRECIPITATION EQUAL 2 3 4 6 0 0 0 0 *** 2 0 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 2 1 0 0 0 0 *** 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 48 62 56 61 51 49 48 47 *** 60 57 70 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 49 51 50 57 45 43 38 40 *** 57 54 70 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 61 61 58 57 48 44 39 46 *** 64 65 79 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** 0 0 0 0 *** 0 2 10 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** 0 0 2 0 *** 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 *** 0 0 1 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 4 10 23 7 *** 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 *** 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 *** 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** 0 0 0 0 *** 0 4 21 *** DATE OF START AND END FREEZING START = 27 NOV. END = 26 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MEAN AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -1.6 3.2 6.6 10.3 16.3 22.0 22.6 23.0 20.9 15.4 6.0 5.0 12.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.8 -1.7 1.1 4.3 10.1 13.9 15.5 16.5 13.8 9.2 0.1 -2.0 6.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.8 7.9 11.9 16.4 22.2 30.3 29.8 29.5 27.8 21.6 11.9 12.1 18.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.6 9.6 10.8 12.1 12.1 16.4 14.3 13.0 14.0 12.4 11.8 14.1 12.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.37 3.44 4.47 6.02 7.60 9.48 10.38 9.91 8.81 6.61 3.81 3.35 6.35 MEAN OF MIXING RATIO AT 09 GMT. 4.14 5.23 6.98 7.89 9.72 12.67 13.10 12.79 11.64 9.45 5.95 5.76 8.78 MEAN OF MIXING RATIO AT 15 GMT. 3.50 4.49 5.81 7.06 8.60 10.57 11.07 11.01 10.17 8.38 5.18 4.76 7.55 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -16.6 -8.0 -4.0 -5.0 4.0 12.0 13.0 14.0 10.0 5.0 -6.0 -10.0 -16.6 DAY 16 26 17 4 4 3 16 20 29 4 19 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 13.0 18.0 28.5 28.0 34.0 33.0 34.0 33.5 27.0 19.0 18.0 34.0 DAY 3 1 28 25 18 5 8 8 10 28 9 28 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 13.0 25.0 1.0 2.0 0.0 0.0 0.0 2.0 6.0 0.0 6.0 25.0 DAY 13 5 5 16 12 ** ** ** 23 18 ** 16 MONTHLY TOTAL PRECIPITATION IN MM. 19.0 67.0 143.0 1.0 5.0 0.0 0.0 0.0 2.0 11.0 0.0 6.0 254.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 90.2 2.4 0.8 6.7 NO. OF DAYS WITH PRECIPITATION. 3 10 18 1 3 0 0 0 1 3 0 1 40 NO. OF DAYS PRECIPITATION EQUAL 3 10 18 1 3 0 0 0 1 3 0 1 40 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 3 4 0 0 0 0 0 0 0 0 0 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 66 77 77 72 61 55 60 54 59 62 67 62 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 71 70 72 61 52 43 46 45 45 53 61 58 56 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 79 77 68 54 45 47 46 51 60 66 62 61 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 5 1 2 0 0 0 0 0 0 4 10 41 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 10 2 0 0 0 0 0 0 0 0 0 0 12 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 20 17 13 12 0 0 0 62 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 18 6 3 0 0 0 0 0 0 14 16 84 DATE OF START AND END FREEZING START = 12 NOV. END = 7 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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. 1.7 3.7 6.3 9.9 ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -5.6 -3.9 -0.3 2.6 ***** ***** 12.8 13.7 10.4 6.1 -0.0 -5.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.1 11.3 12.8 17.2 ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.7 15.2 13.1 14.6 ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.37 2.72 3.95 4.85 ***** ***** 9.70 10.89 8.64 6.82 4.11 2.86 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.63 5.42 6.07 7.77 ***** ***** 14.93 14.77 11.63 10.42 6.41 5.66 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.21 4.32 4.84 5.95 ***** ***** 11.72 11.94 9.94 9.19 5.66 5.14 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.0 -10.5 -5.0 0.5 ***** ***** 10.5 11.5 7.5 4.0 -6.5 -11.0 ****** DAY 20 11 16 1 ** ** 14 15 5 23 25 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 20.0 17.0 20.0 ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY 11 22 23 9 ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 19.0 6.0 15.0 13.0 0.0 0.0 0.0 0.0 0.0 6.0 7.0 13.0 19.0 DAY 26 1 7 27 ** ** ** ** ** 20 1 4 MONTHLY TOTAL PRECIPITATION IN MM. 33.0 9.0 70.0 67.0 0.0 0.0 0.0 0.0 0.0 6.0 11.5 43.0 239.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 46.8 28.0 0.0 25.3 NO. OF DAYS WITH PRECIPITATION. 4 2 11 11 0 0 0 0 0 1 4 7 40 NO. OF DAYS PRECIPITATION EQUAL 4 2 11 11 0 0 0 0 0 1 4 7 40 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 2 2 0 0 0 0 0 0 0 1 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 59 55 69 65 *** *** 57 65 64 71 71 75 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 58 59 60 58 *** *** 47 45 44 62 68 74 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 62 63 59 *** *** 47 45 47 70 72 78 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 16 3 0 *** *** 0 0 0 0 5 19 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** 0 0 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 20 13 0 *** *** 0 0 0 0 12 30 *** DATE OF START AND END FREEZING START = 9 NOV. END = 18 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -7.2 -6.1 ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** 13.0 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.07 3.03 5.05 7.08 7.80 9.64 9.94 9.26 7.37 5.60 4.14 2.93 6.24 MEAN OF MIXING RATIO AT 09 GMT. 5.18 5.40 8.00 10.52 10.59 10.77 11.27 10.01 9.43 8.50 7.31 7.34 8.69 MEAN OF MIXING RATIO AT 15 GMT. 4.39 4.33 6.91 9.27 9.39 9.61 10.02 9.00 8.76 7.61 6.16 5.81 7.61 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.0 -13.5 ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY 18 18 ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** 16.5 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 26 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 14.0 12.0 9.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14.0 DAY 14 19 23 1 17 ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 45.5 31.0 53.0 9.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 141.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 91.5 8.5 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. 8 6 8 1 1 0 0 0 0 0 0 0 24 NO. OF DAYS PRECIPITATION EQUAL 8 6 8 1 1 0 0 0 0 0 0 0 24 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 1 0 0 0 0 0 0 0 0 0 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 80 77 70 57 64 58 55 54 53 51 67 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 73 68 71 63 44 38 38 36 40 45 51 69 53 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 68 73 64 44 39 38 36 47 50 53 72 55 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 17 *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 25 *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = 1 JAN. END = 7 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** ***** ***** ***** ***** ***** ***** ***** ***** 15.5 ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** 7.9 ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.6 12.7 13.2 18.9 28.2 30.8 30.3 29.8 27.6 23.1 13.2 13.1 21.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** 15.2 ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.70 2.91 3.91 5.61 7.89 8.80 9.36 7.54 6.59 5.47 3.33 0.93 5.34 MEAN OF MIXING RATIO AT 09 GMT. 5.94 6.52 6.92 10.17 10.16 11.85 12.02 9.96 9.02 8.48 6.27 5.69 8.58 MEAN OF MIXING RATIO AT 15 GMT. 4.89 5.61 5.67 8.45 8.72 9.86 10.39 8.48 7.61 7.15 4.98 4.40 7.18 ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** 5.0 ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** 31 ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 16.0 22.0 23.0 31.5 38.0 34.5 32.5 31.0 28.0 19.0 15.5 38.0 DAY 7 12 28 17 12 26 8 9 1 12 5 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 8.0 11.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11.0 DAY 11 6 3 8 ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 22.0 46.0 36.5 6.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 110.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 94.6 5.4 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. 8 9 7 3 0 0 0 0 0 0 0 0 27 NO. OF DAYS PRECIPITATION EQUAL 8 9 7 3 0 0 0 0 0 0 0 0 27 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 49 60 70 63 49 51 54 43 45 56 61 34 53 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 66 66 66 67 38 38 40 34 36 45 60 55 51 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 69 68 67 38 38 41 34 39 52 63 60 53 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** 0 *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** 0 *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 6 20 21 19 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. *** *** *** *** *** *** *** *** *** 0 *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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.***** ***** 6.2 17.9 20.4 23.9 23.4 23.8 19.1 13.8 5.6 2.1 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** -1.2 8.8 11.3 17.4 15.8 16.5 11.8 6.7 -0.3 -6.5 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.7 ***** 13.4 27.0 29.5 30.4 31.0 31.0 26.4 20.9 11.5 10.8 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** 14.6 18.2 18.2 13.0 15.2 14.5 14.6 14.2 11.8 17.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.04 ***** 3.54 6.23 8.03 7.47 7.84 8.11 7.03 5.10 4.22 2.24 ***** MEAN OF MIXING RATIO AT 09 GMT. 5.64 ***** 6.69 9.72 11.06 11.30 11.45 11.01 10.01 9.33 6.26 5.63 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.56 ***** 5.08 7.54 9.20 9.02 8.98 9.13 8.48 7.42 5.58 5.01 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** -4.6 3.4 8.4 14.2 13.6 12.8 8.0 2.6 -6.0 -11.6 ****** DAY ** ** 16 1 9 13 19 16 12 8 17 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 ***** 21.0 30.4 32.0 34.0 33.2 33.6 30.0 26.0 19.4 17.6 ****** DAY 1 ** 13 30 4 10 30 8 1 14 4 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 ***** 5.0 0.0 0.0 0.0 0.0 0.0 0.0 7.0 17.0 18.0 ****** DAY 31 ** 25 ** ** ** ** ** ** 6 7 27 MONTHLY TOTAL PRECIPITATION IN MM. 16.0 ***** 9.0 0.0 0.0 0.0 0.0 0.0 0.0 7.0 38.0 55.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 20.0 0.0 0.0 80.0 NO. OF DAYS WITH PRECIPITATION. 4 *** 2 0 0 0 0 0 0 1 5 6 *** NO. OF DAYS PRECIPITATION EQUAL 4 *** 2 0 0 0 0 0 0 1 5 6 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 *** 0 0 0 0 0 0 0 0 2 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 *** 71 49 52 40 46 47 55 57 78 61 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 72 *** 62 41 39 38 38 35 44 56 68 65 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 *** 62 39 39 35 35 34 46 58 75 74 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** 4 0 0 0 0 0 0 0 5 24 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** 0 0 0 2 0 0 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 4 14 18 23 25 2 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** 17 0 0 0 0 0 0 0 15 30 *** DATE OF START AND END FREEZING START = 10 NOV. END = 27 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 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. -4.5 ***** 7.9 15.4 20.1 22.6 23.6 22.7 21.5 17.9 8.2 4.3 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -13.0 ***** 0.9 6.6 11.0 14.8 16.3 15.4 13.7 10.2 -0.1 -2.9 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.1 ***** 14.6 24.1 29.2 30.4 30.8 30.0 29.3 25.5 16.5 11.5 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 17.1 ***** 13.7 17.5 18.2 15.6 14.5 14.6 15.6 15.3 16.6 14.4 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.31 ***** 4.31 5.79 7.69 9.13 9.64 9.07 7.88 5.39 3.52 3.12 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.31 ***** 5.97 10.18 9.05 11.65 11.56 10.91 10.66 9.15 5.18 5.06 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.29 ***** 4.88 8.32 7.45 9.69 9.52 8.89 8.92 7.87 4.59 4.41 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.4 ***** -12.4 0.0 7.2 12.6 14.6 14.0 9.4 2.0 -6.6 -7.8 ****** DAY 27 ** 12 2 3 4 7 12 22 26 20 4 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.2 ***** 19.6 29.2 37.0 35.2 32.8 32.8 32.6 29.2 28.0 14.8 ****** DAY 6 ** 22 28 9 9 16 26 13 5 4 21 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 ***** 10.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5 1.0 24.0 ****** DAY 28 ** 26 ** ** ** ** ** ** 31 24 31 MONTHLY TOTAL PRECIPITATION IN MM. 21.0 ***** 21.5 0.0 0.0 0.0 0.0 0.0 0.0 2.5 1.0 48.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 45.2 0.0 0.0 54.8 NO. OF DAYS WITH PRECIPITATION. 2 *** 4 0 0 0 0 0 0 2 1 5 *** NO. OF DAYS PRECIPITATION EQUAL 2 *** 4 0 0 0 0 0 0 2 1 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 *** 1 0 0 0 0 0 0 0 0 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 58 *** 72 54 54 58 58 60 57 45 58 63 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 74 *** 52 51 33 40 37 37 38 41 41 54 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 *** 58 53 33 39 35 35 38 49 50 62 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 *** 1 0 0 0 0 0 0 0 4 10 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 9 *** 0 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 12 21 27 17 11 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 *** 2 3 0 0 0 0 0 0 14 27 *** DATE OF START AND END FREEZING START = 8 NOV. END = 5 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MEAN AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -1.8 3.5 7.3 12.7 20.1 23.0 24.1 23.6 22.6 18.5 13.5 0.2 13.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -9.1 -3.5 0.6 5.6 12.0 15.5 16.2 16.1 14.7 11.3 6.8 -10.1 6.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.5 10.6 13.9 19.8 28.3 30.5 31.9 31.1 30.4 25.6 20.2 10.4 21.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.6 14.1 13.3 14.2 16.3 15.0 15.7 15.0 15.7 14.3 13.4 20.5 15.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.62 3.34 4.21 5.71 7.68 8.70 8.84 8.96 7.16 6.76 5.24 2.67 5.91 MEAN OF MIXING RATIO AT 09 GMT. 3.94 5.75 6.69 9.01 10.35 12.07 13.81 12.77 11.64 8.30 9.13 5.68 9.10 MEAN OF MIXING RATIO AT 15 GMT. 3.38 4.63 5.29 7.29 8.94 9.36 10.42 10.09 9.16 7.50 7.42 4.26 7.31 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.8 -12.6 -3.8 1.8 6.6 13.0 14.4 13.8 12.8 7.8 0.8 -17.2 -17.2 DAY 9 2 6 3 1 25 23 10 25 31 28 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 15.2 18.6 27.8 32.0 33.6 34.2 33.8 32.4 29.4 26.8 18.2 34.2 DAY 14 24 30 10 30 3 3 21 3 4 3 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 13.0 6.0 24.0 0.0 0.0 0.0 0.0 0.0 0.0 11.0 14.5 24.0 DAY 12 15 21 14 ** ** ** ** ** ** 17 12 MONTHLY TOTAL PRECIPITATION IN MM. 41.0 53.0 14.0 69.0 0.0 0.0 0.0 0.0 0.0 0.0 26.0 37.5 240.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.9 28.7 0.0 26.4 NO. OF DAYS WITH PRECIPITATION. 6 6 3 6 0 0 0 0 0 0 4 4 29 NO. OF DAYS PRECIPITATION EQUAL 6 6 3 6 0 0 0 0 0 0 4 4 29 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 0 4 0 0 0 0 0 0 2 2 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 54 69 68 66 58 51 50 53 46 57 59 82 59 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 65 60 57 39 39 42 41 39 36 55 63 50 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 66 68 63 61 45 37 40 40 37 46 59 63 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 9 0 0 0 0 0 0 0 0 0 29 69 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 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 4 19 29 22 19 0 0 0 93 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 22 9 0 0 0 0 0 0 0 0 30 92 DATE OF START AND END FREEZING START = 2 DEC. END = 11 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MEAN AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.1 3.5 7.0 11.3 14.9 22.1 24.2 24.1 19.8 14.4 8.7 2.9 12.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.1 -3.5 0.2 3.4 6.7 14.0 17.0 16.6 12.7 6.1 1.8 -4.4 5.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.3 10.5 13.7 19.2 23.1 30.2 31.4 31.6 26.9 22.7 15.6 10.3 20.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.4 14.0 13.5 15.8 16.4 16.2 14.4 15.0 14.2 16.6 13.8 14.7 15.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.40 3.42 4.44 5.70 7.18 10.15 10.52 10.10 7.34 5.63 4.61 3.23 6.23 MEAN OF MIXING RATIO AT 09 GMT. 5.43 5.70 6.52 9.60 11.59 15.05 14.01 13.86 11.27 10.07 7.48 6.13 9.73 MEAN OF MIXING RATIO AT 15 GMT. 3.97 4.82 5.17 7.62 9.77 11.72 11.66 10.62 8.90 8.16 5.94 4.89 7.77 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.8 -7.6 -7.6 0.0 -8.8 9.2 14.2 14.2 4.8 4.0 -5.8 -17.8 -17.8 DAY 7 8 1 19 1 12 7 28 30 3 19 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.8 13.8 17.4 26.2 29.6 33.8 36.0 34.6 30.4 27.6 26.8 18.0 36.0 DAY 12 26 24 11 31 4 2 3 13 19 2 19 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 20.0 23.0 10.0 6.0 0.0 0.0 0.0 0.0 0.0 4.0 3.0 23.0 DAY 18 6 13 18 30 ** ** ** ** ** 16 12 MONTHLY TOTAL PRECIPITATION IN MM. 40.0 29.0 46.0 18.0 12.0 0.0 0.0 0.0 0.0 0.0 8.0 5.0 158.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 72.8 19.0 0.0 8.2 NO. OF DAYS WITH PRECIPITATION. 5 2 5 4 3 0 0 0 0 0 2 2 23 NO. OF DAYS PRECIPITATION EQUAL 5 2 5 4 3 0 0 0 0 0 2 2 23 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 1 1 0 0 0 0 0 0 0 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 74 73 74 68 66 61 61 55 56 66 72 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 72 66 61 63 60 53 46 45 47 54 62 69 58 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 71 65 68 65 51 46 42 49 59 63 73 60 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 10 2 0 1 0 0 0 0 0 1 14 54 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 2 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 18 24 26 2 0 0 0 70 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 3 1 1 0 0 0 0 0 7 21 92 DATE OF START AND END FREEZING START = 17 NOV. END = 1 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MEAN AND EXTREMES FOR THE PERIOD 1970 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. 0.8 3.5 8.0 13.6 18.1 22.2 23.6 22.3 18.7 14.1 9.3 4.5 13.2 SD OF MEAN DAILY TEMPERATURE IN C. 2.72 2.67 1.52 2.00 1.86 1.17 0.94 1.34 1.58 2.19 2.20 2.21 1.87 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.0 -2.3 2.1 6.8 10.9 14.9 16.8 15.7 11.2 6.3 2.2 -2.2 6.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.1 8.8 13.8 20.4 25.5 29.6 30.1 28.8 25.8 21.6 16.4 10.8 19.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.3 11.2 11.7 13.7 14.6 14.5 13.1 13.0 14.8 15.6 14.0 12.9 13.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.83 3.37 4.39 5.88 7.24 8.23 8.70 7.90 6.46 5.10 4.02 3.32 5.61 MEAN OF MIXING RATIO AT 09 GMT. 4.31 4.70 5.82 7.58 8.72 9.31 10.17 8.75 7.94 7.16 5.69 4.94 7.08 MEAN OF MIXING RATIO AT 15 GMT. 3.83 4.19 5.25 6.84 7.93 8.49 9.04 8.17 7.40 6.63 5.12 4.36 6.43 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.4 -17.6 -12.4 -5.0 -8.8 5.0 7.4 5.5 -0.4 -5.0 -11.0 -17.8 -20.4 YEAR - DAY 1-27 72- 1 1-12 96- 4 3- 1 80-15 80- 2 72-28 73-30 70-24 76-15 3-13 1-27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.0 22.0 26.0 30.5 37.0 41.0 37.0 36.0 34.0 31.2 28.0 22.4 41.0 YEAR - DAY 76-19 85-26 71-29 87-26 1- 9 73-30 78-14 70- 5 75-11 80- 1 1- 4 78-12 73-30 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 23.0 27.0 24.0 7.0 5.0 0.0 0.0 2.0 7.0 17.0 24.0 27.0 YEAR - DAY 1-28 72-11 72-11 91- 1 79-16 92- 1 **-** **-** 96-23 0- 6 0- 7 1-31 72-11 MONTHLY TOTAL PRECIPITATION IN MM. 31.7 38.7 46.0 25.6 3.9 0.3 0.0 0.0 0.1 1.8 6.0 19.6 173.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 67.1 17.1 0.0 15.8 NO. OF DAYS WITH PRECIPITATION. 5 6 7 4 1 0 0 0 0 1 1 3 28 NO. OF DAYS PRECIPITATION EQUAL 5 6 7 4 1 0 0 0 0 1 1 3 28 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 1 1 0 0 0 0 0 0 0 1 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 71 68 61 55 49 49 48 49 54 59 68 58 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 60 54 47 39 33 34 32 34 40 46 55 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 69 63 54 45 36 37 36 40 51 56 65 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 9 2 0 0 0 0 0 0 0 3 11 43 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 2 1 0 0 0 0 4 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 2 0 0 0 0 0 0 0 0 0 1 5 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 5 14 17 12 4 0 0 0 52 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 19 7 1 0 0 0 0 0 2 8 20 83 DATE OF START AND END FREEZING START = 30 SEP. END = 4 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ZOHAN LATITUDE 33 25 N DATA PROCESSING CENTER LONGITUDE 59 47 E ELEVATION 1690 MET. MEAN AND EXTREMES FOR THE PERIOD 1970 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. 1.7 3.6 8.4 14.8 19.9 24.0 24.9 23.5 20.1 15.2 10.1 4.8 14.2 AVERAGE DEW POINT TEMPERATURE. IN C. -4.2 -2.5 0.9 4.7 7.1 8.4 9.5 7.7 5.6 3.5 0.2 -2.2 3.2 AVERAGE OF MIXING RATIO IN G/KG 3.66 4.08 5.15 6.76 7.95 8.67 9.30 8.26 7.24 6.29 4.95 4.23 6.38 AVERAGE OF VAPOUR PRESSURE HPA 4.82 5.38 6.80 8.94 10.53 11.50 12.33 10.96 9.60 8.33 6.54 5.58 8.44 AVERAGE OF SATURATION DEFICIT IN HPA 2.62 3.08 4.94 8.92 13.86 19.27 19.85 18.91 15.02 9.95 6.68 3.84 10.58 AVERAGE RELATIVE HUMIDITY IN PERCENT 67 67 62 54 46 40 40 39 41 48 54 63 52 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 78 77 72 64 57 51 50 49 51 58 64 74 62 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 55 57 52 44 37 31 33 30 32 38 43 51 42 NO. OF DAYS PRECIPITATION EQUAL 3 3 4 2 0 0 0 0 0 0 0 2 14 OR MORE THAN 5 MM.