IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 10.2 ****** 1979 6.6 ****** 8.3 13.7 18.5 20.3 24.4 25.1 23.2 19.7 ****** 10.8 ****** 1980 ****** ****** 7.7 14.0 19.2 22.4 26.2 24.3 21.5 17.1 15.4 11.1 ****** 1981 8.6 ****** 11.5 13.2 18.6 23.0 25.3 25.9 23.0 18.3 12.7 11.2 ****** 1982 6.2 4.8 7.6 16.0 18.5 ****** ****** ****** ****** ****** 8.7 4.3 ****** 1983 3.8 6.4 ****** 14.1 20.1 22.1 25.5 24.7 21.6 17.0 14.1 8.2 ****** 1984 6.5 4.1 8.4 14.3 16.9 21.2 25.0 24.2 22.1 17.6 14.1 6.1 20.9 1985 6.4 7.0 6.6 14.7 19.7 23.5 24.2 24.9 23.0 17.1 13.8 8.8 18.5 1986 7.9 7.4 6.8 14.4 18.2 22.5 25.1 25.6 23.9 18.5 12.4 8.2 18.8 1987 9.6 8.2 9.2 11.8 19.1 23.2 24.5 25.2 21.3 14.3 12.8 9.3 17.0 1988 6.8 7.0 9.5 14.5 18.2 25.1 25.8 24.3 22.4 16.7 13.3 9.8 19.0 1989 5.3 5.3 9.9 14.9 19.3 23.1 25.8 26.2 22.6 19.3 14.3 9.3 20.9 1990 5.9 7.9 9.7 14.0 18.2 23.1 25.6 24.4 23.3 18.7 15.2 9.4 19.7 1991 7.3 6.7 8.2 15.1 18.3 22.9 26.4 25.7 22.4 19.9 13.7 9.1 19.7 1992 ****** 7.4 ****** ****** 16.8 23.4 24.4 23.9 21.9 17.4 13.4 9.2 ****** 1993 6.8 5.5 9.6 14.3 18.7 22.0 24.3 25.5 22.3 16.9 10.3 ****** ****** 1994 8.0 5.9 9.5 ****** 19.1 21.1 24.2 25.0 21.8 18.5 14.7 7.9 ****** 1995 8.7 8.4 10.9 15.9 20.7 23.8 25.6 26.4 23.8 17.2 15.3 8.8 18.0 1996 6.7 7.7 7.9 12.3 20.1 22.0 25.6 25.9 23.6 18.4 13.1 11.8 19.2 1997 9.1 6.7 8.2 15.2 20.0 24.1 25.1 26.4 21.2 20.3 12.4 9.3 19.7 1998 6.5 6.0 10.3 16.1 20.0 25.5 26.1 26.7 23.0 18.2 15.1 11.5 20.7 1999 8.1 10.8 10.5 14.2 17.6 22.3 24.8 27.4 23.0 19.6 12.6 10.2 19.3 2000 7.9 7.9 9.3 17.7 18.9 22.6 25.7 27.0 23.7 17.1 12.2 9.5 19.1 2001 6.8 9.6 12.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2002 ****** ****** ****** ****** 18.7 22.9 26.1 26.4 25.1 21.3 15.0 6.8 ****** 2003 9.0 8.4 8.2 12.5 18.0 21.1 24.5 25.8 22.7 20.3 13.7 ****** ****** MEAN 7.2 7.1 9.1 14.4 18.8 22.7 25.2 25.5 22.7 18.2 13.4 9.2 18.4 SD 1.38 1.58 1.50 1.36 0.99 1.23 0.71 0.96 0.96 1.57 1.59 1.76 1.30 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2.5 ****** 1979 -0.5 ****** 1.4 7.8 13.1 15.6 20.2 19.9 17.8 14.8 ****** 2.8 ****** 1980 -1.1 -0.8 3.2 8.5 13.3 17.6 21.2 20.6 17.9 12.7 9.5 5.3 10.7 1981 1.7 3.5 7.3 9.7 15.2 19.6 21.7 22.3 17.7 13.1 6.0 2.5 11.7 1982 0.2 -1.0 2.9 11.1 15.9 ****** ****** ****** ****** ****** 3.6 -3.7 ****** 1983 -3.6 -0.6 ****** 7.4 15.5 18.4 21.3 21.4 18.4 11.9 8.7 2.2 ****** 1984 0.7 0.3 5.7 9.2 12.0 16.7 20.2 20.6 17.5 12.1 9.6 2.2 10.6 1985 1.7 1.9 2.5 9.5 14.4 18.8 21.0 19.7 18.4 12.4 9.3 4.2 11.2 1986 2.1 3.8 3.2 9.7 14.0 17.6 20.6 20.5 18.3 14.2 8.9 2.9 11.3 1987 4.1 4.4 6.2 7.5 14.3 18.1 20.4 22.0 17.1 10.5 8.5 4.7 11.5 1988 2.7 3.0 5.6 11.3 15.4 21.4 23.0 21.2 18.9 13.3 8.4 4.8 12.4 1989 0.4 -0.5 5.1 9.4 14.0 18.2 21.5 22.6 18.3 14.8 9.0 4.8 11.5 1990 1.2 2.9 4.0 8.6 13.7 17.8 21.3 20.6 18.9 13.3 9.0 4.1 11.3 1991 2.1 2.0 5.5 10.2 13.1 17.3 20.9 21.2 18.2 14.9 9.0 3.2 11.5 1992 ****** 1.6 ****** ****** 11.8 18.6 20.5 20.0 17.7 12.2 8.4 5.3 ****** 1993 2.1 2.3 4.6 9.3 14.2 17.9 20.6 21.8 19.0 12.5 7.2 ****** ****** 1994 3.9 2.4 6.3 ****** 14.8 17.9 20.5 21.6 17.0 14.4 10.7 3.4 ****** 1995 4.5 4.3 7.0 11.3 16.0 18.9 21.7 22.5 19.4 12.8 9.3 3.5 12.6 1996 3.1 3.8 5.5 8.9 15.2 18.6 20.9 21.7 19.4 13.5 8.6 6.8 12.2 1997 5.2 2.6 4.1 9.6 14.8 20.4 22.0 22.8 17.5 15.3 7.6 4.4 12.2 1998 2.6 1.5 5.6 10.8 15.3 20.7 21.6 22.3 19.4 13.4 10.5 7.7 12.6 1999 2.9 5.7 6.3 9.6 13.1 17.8 20.5 22.5 19.3 15.3 7.8 4.1 12.1 2000 3.3 2.9 4.9 11.4 14.8 18.2 20.3 22.5 20.4 13.3 8.0 4.9 12.1 2001 2.3 4.3 6.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2002 ****** ****** ****** ****** 13.9 17.8 21.4 22.7 20.2 15.3 9.9 2.4 ****** 2003 4.0 4.8 5.1 8.8 12.1 16.4 20.7 20.8 18.7 15.4 9.0 ****** ****** MEAN 2.0 2.4 5.0 9.5 14.2 18.3 21.0 21.5 18.5 13.5 8.6 3.7 11.5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 13.7 15.1 ****** ****** ****** ****** ****** ****** ****** 24.3 17.1 17.5 ****** 1979 14.1 ****** 15.0 19.7 23.7 25.0 28.4 30.4 28.9 24.4 ****** 16.9 ****** 1980 ****** ****** 11.7 19.5 25.1 27.3 31.0 28.0 25.3 21.8 21.0 16.9 ****** 1981 15.4 ****** 15.7 16.6 22.1 26.2 28.8 29.7 28.1 23.6 19.7 19.8 ****** 1982 12.0 10.8 12.1 20.9 22.1 26.0 ****** ****** ****** ****** 13.9 12.3 ****** 1983 11.4 13.4 ****** 20.8 24.7 25.8 29.8 28.1 24.8 22.2 19.3 14.2 ****** 1984 12.3 7.8 11.1 19.4 21.8 25.8 29.9 27.7 26.8 23.1 18.4 10.0 19.5 1985 11.1 12.0 10.6 19.8 25.1 28.2 27.4 30.2 27.5 21.9 18.2 13.4 20.5 1986 13.9 11.2 10.5 19.1 22.5 27.3 29.6 30.8 29.5 22.9 15.8 13.5 20.5 1987 14.9 11.9 12.1 17.0 23.9 28.3 28.6 28.6 25.5 18.5 17.3 14.5 20.1 1988 10.6 11.3 13.8 18.2 21.6 29.1 28.9 27.4 25.8 20.1 18.4 14.8 20.0 1989 10.1 11.0 14.6 20.4 24.5 28.1 30.2 29.8 27.0 23.9 19.7 13.5 21.1 1990 10.6 12.8 15.3 19.4 22.7 28.4 29.9 28.2 27.7 24.0 21.4 14.8 21.3 1991 12.5 11.3 10.9 20.3 23.4 28.4 31.9 30.3 26.5 25.0 18.3 15.0 21.1 1992 ****** 12.9 12.2 17.5 21.9 28.1 28.3 27.9 26.0 22.6 18.5 13.1 ****** 1993 11.5 8.7 14.7 19.4 23.2 26.0 28.0 29.2 25.5 21.4 13.5 ****** ****** 1994 12.0 9.4 12.7 ****** 23.3 24.4 27.9 28.4 26.6 22.6 18.7 12.4 ****** 1995 12.8 12.4 14.7 20.5 25.4 28.7 29.6 30.2 28.1 21.5 21.3 14.1 21.6 1996 10.4 11.6 10.3 15.6 25.0 25.4 30.3 30.1 27.8 23.3 17.5 16.8 20.3 1997 13.0 10.9 12.4 20.7 25.2 27.8 28.2 30.0 24.9 25.4 17.2 14.2 20.8 1998 10.4 11.1 15.0 21.4 24.8 30.3 30.5 31.2 26.5 22.9 19.6 15.2 21.6 1999 13.3 15.8 14.7 18.9 22.0 27.0 29.2 32.3 26.7 23.9 17.3 16.2 21.4 2000 12.6 13.0 13.6 23.9 23.0 27.0 31.2 31.5 27.1 21.0 16.3 14.1 21.2 2001 11.3 14.8 18.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2002 ****** ****** 18.0 17.1 21.9 27.8 30.8 30.1 29.9 27.5 20.1 11.2 ****** 2003 14.1 12.1 11.3 16.3 23.9 25.7 28.3 30.8 26.7 25.3 18.3 ****** ****** MEAN 12.3 11.9 13.4 19.2 23.4 27.2 29.4 29.6 26.9 23.0 18.2 14.5 20.8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 15.0 ****** 1979 14.6 ****** 13.6 11.9 10.6 9.4 8.2 10.5 11.1 9.6 ****** 14.1 ****** 1980 ****** ****** 8.5 11.0 11.8 9.7 9.8 7.4 7.4 9.1 11.5 11.6 ****** 1981 13.7 ****** 8.4 6.9 6.9 6.6 7.1 7.4 10.4 10.5 13.7 17.3 ****** 1982 11.8 11.8 9.2 9.8 6.2 ****** ****** ****** ****** ****** 10.3 16.0 ****** 1983 15.0 14.0 ****** 13.3 9.2 7.4 8.5 6.7 6.4 10.3 10.6 12.0 ****** 1984 11.6 7.5 5.4 10.2 9.8 9.1 9.7 7.1 9.3 11.0 8.8 7.8 8.9 1985 9.4 10.1 8.1 10.3 10.7 9.5 6.4 10.5 9.1 9.5 8.9 9.2 9.3 1986 11.8 7.4 7.3 9.4 8.5 9.7 9.0 10.3 11.2 8.7 6.9 10.6 9.2 1987 10.8 7.5 5.9 9.5 9.6 10.2 8.2 6.6 8.4 8.0 8.8 9.8 8.6 1988 7.9 8.3 8.2 6.9 6.2 7.7 5.9 6.2 6.9 6.8 10.0 10.0 7.6 1989 9.7 11.5 9.5 11.0 10.5 9.9 8.7 7.2 8.7 9.1 10.7 8.7 9.6 1990 9.4 9.9 11.3 10.8 9.0 10.6 8.6 7.6 8.8 10.7 12.4 10.7 10.0 1991 10.4 9.2 5.4 10.1 10.3 11.1 11.0 9.1 8.3 10.1 9.3 11.8 9.7 1992 ****** 11.3 ****** ****** 10.1 9.5 7.8 7.9 8.3 10.4 10.1 7.8 ****** 1993 9.4 6.4 10.1 10.1 9.0 8.1 7.4 7.4 6.5 8.9 6.3 ****** ****** 1994 8.1 7.0 6.4 ****** 8.5 6.5 7.4 6.8 9.6 8.2 8.0 9.0 ****** 1995 8.3 8.1 7.7 9.3 9.4 9.8 7.9 7.7 8.7 8.7 12.0 10.6 9.0 1996 7.3 7.8 4.8 6.7 9.8 6.8 9.4 8.4 8.4 9.8 8.9 10.0 8.2 1997 7.8 8.3 8.3 11.1 10.4 7.4 6.2 7.2 7.4 10.1 9.6 9.8 8.6 1998 7.8 9.6 9.4 10.6 9.5 9.6 8.9 8.9 7.1 9.5 9.1 7.5 9.0 1999 10.4 10.1 8.4 9.3 8.9 9.2 8.7 9.8 7.5 8.6 9.5 12.1 9.4 2000 9.3 10.1 8.7 12.5 8.2 8.8 10.9 9.0 6.7 7.7 8.3 9.2 9.1 2001 9.0 10.5 11.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2002 ****** ****** ****** ****** 8.0 10.0 9.4 7.4 9.7 12.2 10.2 8.8 ****** 2003 10.1 7.3 6.2 7.5 11.8 9.3 7.6 10.0 8.0 9.9 9.3 ****** ****** MEAN 10.2 9.2 8.3 9.9 9.3 9.0 8.4 8.1 8.4 9.5 9.7 10.8 9.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 4.29 4.53 ****** ****** ****** ****** ****** ****** ****** 10.26 5.49 5.56 ****** 1979 4.64 ****** 5.35 7.94 9.75 12.35 15.67 14.16 12.58 10.59 ****** 5.08 ****** 1980 3.76 3.91 5.29 7.56 9.64 12.15 15.03 15.38 12.65 9.01 7.44 5.50 8.94 1981 4.20 4.83 6.42 7.58 10.19 12.89 15.71 16.33 12.96 9.57 6.38 4.80 9.32 1982 4.27 3.65 4.89 8.41 11.25 13.27 ****** ****** ****** ****** 5.84 3.45 ****** 1983 3.60 4.20 ****** 7.54 11.56 13.78 16.05 15.55 13.14 8.91 7.43 4.92 ****** 1984 4.19 3.99 5.98 8.09 9.66 12.69 15.30 15.18 12.54 8.72 7.61 4.36 9.03 1985 4.48 4.42 4.65 7.79 11.15 14.21 14.70 13.97 13.16 9.24 7.59 5.24 9.22 1986 4.49 4.99 4.92 8.20 10.36 13.40 15.47 14.36 12.90 10.73 7.55 4.66 9.33 1987 5.22 5.27 5.91 7.04 11.06 14.11 15.03 16.21 12.46 8.11 6.69 5.21 9.36 1988 4.39 4.50 5.72 7.97 10.30 13.66 16.04 15.31 13.71 9.39 7.26 5.80 9.51 1989 3.72 3.73 6.01 8.26 10.52 13.66 16.05 16.57 12.93 11.44 7.07 5.79 9.64 1990 4.11 4.36 5.41 7.55 9.98 13.12 16.02 14.56 14.18 10.02 7.37 5.16 9.32 1991 4.60 4.57 5.80 8.04 9.84 14.18 16.55 15.36 13.17 10.83 7.52 4.73 9.60 1992 ****** 4.34 4.94 7.08 9.73 13.86 16.16 14.20 12.17 9.08 6.82 5.22 ****** 1993 3.90 4.44 5.11 7.10 10.22 13.45 14.69 15.61 13.55 8.45 6.40 ****** ****** 1994 4.95 4.42 5.69 ****** 10.77 12.84 14.43 15.55 10.34 10.35 8.26 4.59 ****** 1995 5.28 5.40 5.87 7.97 11.42 13.19 15.75 16.53 13.53 9.33 7.25 4.72 9.69 1996 4.68 4.94 5.44 7.02 11.38 13.37 15.50 15.30 13.91 9.57 6.84 6.26 9.52 1997 5.84 4.59 5.50 7.65 11.72 15.61 16.69 16.62 13.29 10.73 7.01 5.18 10.04 1998 4.59 4.14 5.78 7.99 10.83 14.78 16.21 16.00 13.78 9.74 8.30 6.71 9.90 1999 4.74 5.50 6.20 7.69 10.14 13.31 15.13 16.98 13.57 10.74 6.64 5.41 9.67 2000 4.72 4.41 5.42 8.38 10.50 12.66 14.64 15.78 14.73 9.96 6.87 5.46 9.46 2001 4.50 4.87 6.26 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2002 ****** ****** 6.73 8.03 10.46 14.11 15.89 17.54 14.81 12.82 8.07 4.58 ****** 2003 4.79 5.24 5.50 6.85 9.27 12.35 15.17 15.23 13.40 11.00 6.72 ****** ****** MEAN 4.50 4.56 5.62 7.73 10.49 13.46 15.57 15.58 13.20 9.95 7.11 5.15 9.40 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 5.16 5.75 ****** ****** ****** ****** ****** ****** ****** 11.68 7.05 6.80 ****** 1979 5.68 ****** 6.77 9.04 10.76 13.68 17.01 17.86 16.47 12.41 ****** 6.54 ****** 1980 5.29 4.71 6.08 8.55 11.66 13.81 16.36 16.36 14.23 10.00 9.07 6.96 10.26 1981 5.93 5.68 6.92 8.04 10.49 13.75 17.18 17.79 15.07 11.44 8.47 6.65 10.62 1982 5.24 4.45 5.68 9.11 11.74 14.27 ****** ****** ****** ****** 6.76 5.38 ****** 1983 4.69 5.25 ****** 8.33 12.45 15.20 17.62 16.44 13.71 10.42 9.02 6.29 ****** 1984 5.93 4.42 6.47 9.21 10.25 13.48 17.25 16.25 14.63 10.51 9.18 5.23 10.23 1985 5.73 5.21 5.46 8.43 12.13 15.28 15.39 15.62 15.31 11.06 9.45 6.52 10.47 1986 5.92 5.72 5.39 9.09 11.33 13.75 16.19 16.31 15.50 12.44 8.64 6.44 10.56 1987 6.69 6.21 6.72 8.18 12.90 16.79 16.62 18.04 13.75 9.31 8.33 6.55 10.84 1988 5.59 5.78 6.87 9.28 11.26 16.09 17.07 16.36 15.58 11.29 8.56 7.09 10.90 1989 4.48 4.32 6.82 9.43 11.80 14.65 18.18 18.20 14.99 12.90 8.46 6.91 10.93 1990 5.73 5.20 6.25 8.56 10.82 15.09 17.55 15.99 15.96 11.88 9.85 6.51 10.78 1991 6.45 5.62 6.40 9.20 10.97 18.68 19.87 18.09 14.71 12.82 9.00 6.80 11.55 1992 ****** 5.35 5.92 8.26 11.61 15.93 18.58 17.39 15.63 10.96 8.28 6.47 ****** 1993 4.90 5.07 6.13 8.64 12.82 17.18 17.44 17.34 15.85 11.21 7.40 ****** ****** 1994 6.05 5.09 6.58 ****** 14.43 15.03 17.69 18.09 13.73 13.85 11.14 5.87 ****** 1995 7.11 7.49 7.52 10.31 15.47 17.26 17.54 19.42 17.29 11.59 10.65 6.92 12.38 1996 6.07 6.25 6.25 8.20 16.03 15.51 19.53 19.53 17.28 12.25 9.16 9.68 12.14 1997 7.66 6.79 7.36 11.89 16.77 19.48 18.44 20.00 17.68 14.68 8.66 7.04 13.04 1998 5.88 5.01 6.80 10.42 13.46 17.61 17.13 17.96 16.01 12.29 10.14 7.91 11.72 1999 5.92 6.46 7.03 9.14 13.41 16.38 18.69 22.84 15.74 13.55 8.28 6.76 12.02 2000 5.62 5.68 6.33 10.86 12.12 14.46 17.95 18.67 16.14 11.31 8.24 7.06 11.20 2001 5.61 6.03 7.60 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2002 ****** ****** 8.34 10.07 13.89 18.47 21.70 22.64 20.63 20.30 12.80 6.06 ****** 2003 6.90 6.59 6.16 7.87 11.47 14.10 16.81 18.38 15.56 13.50 8.28 ****** ****** MEAN 5.85 5.59 6.58 9.14 12.51 15.67 17.73 18.07 15.72 12.24 8.96 6.72 11.23 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 5.50 5.74 ****** ****** ****** ****** ****** ****** ****** 11.53 6.72 6.86 ****** 1979 5.20 ****** 6.47 8.88 10.23 12.91 16.57 17.82 15.03 11.95 ****** 5.70 ****** 1980 4.48 4.64 5.92 8.13 10.48 13.56 16.47 16.51 13.81 9.61 8.75 6.78 9.93 1981 4.83 5.13 6.71 7.47 10.76 13.27 16.64 17.83 15.26 11.46 7.62 6.32 10.28 1982 5.30 4.65 5.74 9.28 11.52 13.67 ****** ****** ****** ****** 6.58 4.46 ****** 1983 4.47 5.30 ****** 8.47 12.46 14.86 17.68 16.67 13.87 10.72 8.89 5.93 ****** 1984 5.53 4.59 6.44 8.80 10.37 13.51 17.85 16.06 14.62 11.00 8.65 5.10 10.21 1985 5.33 5.36 5.59 8.70 11.93 15.25 15.87 16.14 15.14 10.75 8.62 6.23 10.41 1986 6.01 5.82 5.33 8.66 11.23 14.31 16.26 17.21 14.95 11.27 8.27 5.85 10.43 1987 6.01 6.00 6.50 7.42 12.03 15.98 16.30 17.33 13.50 8.95 7.28 5.58 10.24 1988 4.58 5.05 6.04 8.00 10.28 15.07 16.04 16.45 14.98 10.69 8.14 6.78 10.18 1989 4.42 4.73 6.58 8.87 11.83 14.32 18.08 18.31 14.72 12.31 8.12 6.51 10.73 1990 4.82 5.40 6.23 8.33 10.78 14.41 17.34 15.98 15.71 11.84 8.79 6.34 10.50 1991 5.55 5.24 6.05 8.61 10.71 16.37 18.37 17.62 14.22 12.31 8.83 5.73 10.80 1992 ****** 5.23 5.89 7.84 9.35 14.90 16.83 16.63 14.83 10.31 8.08 6.18 ****** 1993 4.85 5.07 6.43 8.75 11.77 15.62 16.90 17.63 15.25 10.81 6.94 ****** ****** 1994 6.04 5.07 6.72 ****** 12.92 14.27 17.15 17.86 13.67 12.28 9.37 5.70 ****** 1995 6.39 6.89 7.18 9.69 13.91 15.91 18.20 19.38 17.05 10.69 9.16 5.73 11.68 1996 5.77 5.89 6.14 7.87 13.90 15.02 19.51 19.21 16.99 11.13 8.41 7.34 11.43 1997 6.51 5.69 6.41 10.72 14.44 17.92 19.08 19.00 14.90 13.44 8.08 6.45 11.89 1998 5.46 5.31 7.21 9.85 12.68 16.69 18.15 19.04 15.88 11.34 9.79 7.77 11.60 1999 6.07 6.76 7.11 9.01 11.95 15.29 18.55 22.00 15.72 12.92 8.24 6.73 11.70 2000 5.22 5.49 6.24 10.47 11.83 14.14 17.70 19.02 16.16 10.96 8.02 6.71 11.00 2001 5.78 5.94 7.61 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2002 ****** ****** 7.75 9.33 13.07 17.44 20.69 20.90 18.71 15.01 9.99 5.21 ****** 2003 5.95 6.09 5.98 7.83 10.87 13.69 16.68 18.09 15.36 12.95 8.15 ****** ****** MEAN 5.42 5.47 6.43 8.74 11.73 14.94 17.52 17.95 15.24 11.51 8.32 6.18 10.78 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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 1978 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** -3.5 18 ***** 1979 -7.0 14 ***** ** -6.5 2 3.0 2 6.5 10 12.0 13 17.5 12 16.5 28 11.5 28 10.0 19 ***** ** -5.5 23 ***** 1980 -7.0 27 -8.0 3 -2.0 5 4.0 20 9.0 17 15.0 6 18.0 13 17.5 30 14.0 22 7.0 22 3.0 26 -2.0 22 -8.0 1981 -3.5 8 -2.2 13 2.0 4 0.0 3 10.5 17 15.0 6 18.0 23 19.0 21 11.0 25 7.0 31 0.0 27 -3.0 20 -3.5 1982 -6.0 25 -7.0 9 -4.5 9 4.0 1 12.5 3 ***** ** ***** ** ***** ** ***** ** ***** ** -3.0 16 -8.5 11 ***** 1983 -8.0 27 -4.0 2 ***** ** 3.5 13 10.5 1 15.0 1 16.5 1 16.0 28 13.0 16 7.5 22 2.5 27 -2.5 16 ***** 1984 -2.5 1 -4.0 7 -1.5 2 2.5 5 7.0 2 12.5 1 16.5 5 18.0 13 12.5 28 5.0 21 4.5 23 -1.5 30 -4.0 1985 -3.5 18 -5.0 24 -3.0 11 4.0 2 9.0 6 15.0 10 18.0 24 15.0 30 15.0 24 8.0 24 4.5 21 -2.0 31 -5.0 1986 -2.0 25 -1.0 3 -0.5 2 3.5 2 10.0 19 14.0 24 17.5 22 16.5 6 14.5 30 10.0 16 1.5 16 -2.0 12 -2.0 1987 0.5 13 0.5 7 1.5 24 1.0 2 7.5 3 13.2 1 17.5 4 18.0 31 12.0 24 6.0 29 2.0 30 0.4 1 0.4 1988 -0.5 3 -1.5 7 0.5 7 6.0 6 10.5 2 18.0 2 19.0 27 17.5 26 15.0 30 7.5 23 2.0 17 -0.5 29 -1.5 1989 -2.5 31 -3.5 15 0.5 31 4.0 1 7.0 1 15.0 4 19.5 22 19.5 19 12.0 23 9.0 25 3.0 23 0.5 8 -3.5 1990 -2.0 31 -1.5 8 -2.5 21 3.5 5 10.5 27 12.0 8 17.5 6 17.5 2 15.0 14 6.5 16 4.5 14 -1.5 20 -2.5 1991 -1.0 16 -4.0 14 0.5 12 4.5 14 9.0 25 13.0 2 16.5 15 17.5 29 12.5 28 11.5 18 3.5 23 -1.0 21 -4.0 1992 ***** ** -2.0 13 ***** ** ***** ** 6.5 3 14.0 8 17.0 11 17.0 13 14.5 1 7.5 17 1.0 27 -0.5 31 ***** 1993 -2.5 16 -8.0 18 1.0 3 4.5 1 8.0 1 15.5 6 17.5 14 16.5 26 15.5 27 9.0 7 1.0 15 ***** ** ***** 1994 -0.5 11 -2.0 20 1.0 3 ***** ** 9.5 8 12.0 5 14.0 1 19.5 10 13.5 16 10.0 14 6.0 28 -2.0 8 ***** 1995 1.0 15 0.5 26 2.5 16 5.5 8 12.5 3 14.5 1 19.0 18 18.0 12 12.5 23 8.5 19 3.5 28 -1.5 19 -1.5 1996 0.0 18 -2.0 4 2.5 1 3.0 7 10.0 2 16.0 16 16.0 17 18.0 4 15.0 21 8.5 20 3.0 20 3.0 2 -2.0 1997 -1.5 30 -2.0 8 -1.0 9 2.0 12 8.0 6 16.5 2 18.5 2 21.0 2 14.0 16 10.0 26 4.5 29 0.0 29 -2.0 1998 -1.0 17 -1.5 24 -1.0 3 2.0 2 9.5 5 17.0 4 19.0 25 19.5 31 16.0 17 8.0 11 7.5 15 3.0 23 -1.5 1999 -0.6 5 0.5 22 1.0 19 5.5 10 8.0 22 14.0 6 17.0 13 19.0 3 13.0 24 8.0 28 1.0 30 0.0 6 -0.6 2000 -3.5 18 -2.5 9 -0.5 4 6.5 2 9.5 12 11.5 14 17.5 22 19.0 1 16.5 26 9.0 16 3.0 17 0.5 17 -3.5 2001 -4.5 29 -0.5 1 1.5 14 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 2002 ***** ** ***** ** ***** ** ***** ** 10.0 15 13.5 8 16.0 2 20.5 14 15.5 27 9.0 16 5.0 25 -1.6 29 ***** 2003 -0.2 4 -2.4 18 -1.0 3 2.0 30 4.0 2 11.0 13 17.6 4 18.0 10 14.0 28 12.0 9 4.0 24 ***** ** ***** LOW. -8.0 27 -8.0 3 -6.5 2 0.0 3 4.0 2 11.0 13 14.0 1 15.0 30 11.0 25 5.0 21 -3.0 16 -8.5 11 -8.5 YEAR 1983 1980 1979 1981 2003 2003 1994 1985 1981 1984 1982 1982 1982 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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 1978 25.0 2 25.0 17 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 33.5 23 22.5 8 23.0 1 ***** 1979 19.0 1 ***** ** 23.0 17 25.5 4 28.0 14 30.0 22 32.0 2 35.0 25 36.0 17 28.0 1 ***** ** 22.0 4 ***** 1980 ***** ** ***** ** 23.0 23 28.0 22 35.0 22 32.0 3 33.0 12 33.0 17 31.0 3 26.0 1 28.0 13 25.0 5 ***** 1981 24.0 17 ***** ** 25.0 6 28.0 20 33.0 14 30.0 15 31.5 31 32.0 6 32.5 14 29.5 15 28.5 2 27.0 16 ***** 1982 20.5 8 20.0 3 19.0 30 32.0 25 29.0 15 30.5 16 ***** ** ***** ** ***** ** ***** ** 23.5 6 19.0 31 ***** 1983 21.5 1 22.5 19 ***** ** 32.0 18 31.5 4 29.5 18 33.0 15 33.0 15 29.0 25 27.5 11 24.5 22 24.0 1 ***** 1984 16.0 8 11.0 3 18.0 17 29.5 21 33.0 26 33.0 10 33.5 22 30.0 6 30.5 23 28.5 5 24.0 25 17.5 14 33.5 1985 17.0 5 26.5 15 26.0 21 27.5 12 30.5 20 31.5 19 33.0 13 34.0 20 31.0 1 28.0 18 25.0 16 19.5 9 34.0 1986 23.0 9 21.5 27 15.5 26 32.5 15 30.0 3 31.0 5 32.5 6 34.5 22 31.5 2 31.5 22 24.0 9 23.5 27 34.5 1987 26.0 30 27.0 25 24.0 6 28.5 13 35.5 23 35.0 2 34.5 30 33.5 10 29.4 16 28.0 1 22.0 13 25.0 11 35.5 1988 18.0 28 23.0 29 22.0 3 25.5 15 27.5 8 35.0 13 32.5 3 31.5 12 30.0 4 25.0 2 30.0 8 22.5 11 35.0 1989 17.0 1 24.5 28 27.0 26 28.0 17 32.0 5 39.0 24 34.5 30 33.0 15 33.0 1 33.5 2 29.5 27 24.0 11 39.0 1990 13.5 1 25.0 17 29.0 2 34.0 28 28.5 29 36.0 3 35.5 27 33.0 22 35.5 14 31.5 22 28.0 9 28.5 5 36.0 1991 21.5 31 23.0 18 19.5 27 35.0 26 30.0 9 35.0 23 37.5 1 36.5 1 30.5 6 30.5 24 23.0 4 24.5 8 37.5 1992 ***** ** 21.5 7 23.0 28 32.5 21 29.0 30 33.0 17 31.5 20 31.0 19 29.0 6 32.0 13 27.5 22 21.0 15 ***** 1993 24.0 28 16.5 27 25.0 30 29.0 19 30.5 15 31.0 26 33.5 24 33.0 12 30.5 1 28.5 1 22.0 3 ***** ** ***** 1994 21.5 30 18.0 27 26.0 29 ***** ** 31.0 29 28.0 11 32.0 23 32.5 16 30.5 26 29.5 19 26.0 3 21.0 14 ***** 1995 22.5 12 18.5 11 22.5 31 30.5 29 30.0 24 40.0 29 32.5 16 33.0 4 32.0 11 29.5 3 31.5 8 22.0 22 40.0 1996 15.0 4 26.5 9 16.5 29 27.0 29 32.5 15 33.0 29 33.0 24 34.0 25 34.0 7 33.5 24 20.5 2 25.5 25 34.0 1997 25.0 6 17.0 17 22.0 23 31.5 24 32.5 26 33.0 13 31.5 1 32.5 11 32.5 1 33.0 13 24.5 4 21.5 8 33.0 1998 14.5 7 25.5 7 26.5 24 31.0 14 31.5 21 34.5 23 33.0 6 35.0 7 32.0 1 32.5 1 27.5 16 25.0 11 35.0 1999 20.0 11 23.5 20 24.5 21 26.5 13 27.5 2 31.0 27 32.5 31 35.0 23 30.5 3 32.5 16 27.0 25 24.0 30 35.0 2000 26.0 19 20.5 17 24.5 19 31.0 7 32.0 3 31.5 8 34.0 23 36.0 3 31.5 8 26.0 11 20.0 4 18.5 31 36.0 2001 19.5 1 25.5 21 33.5 29 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 2002 ***** ** ***** ** 27.5 26 26.2 8 30.5 28 31.0 25 34.0 5 33.0 2 34.5 27 33.6 2 28.0 12 18.0 31 ***** 2003 26.5 7 24.5 4 16.5 22 34.5 26 30.0 30 29.0 16 32.0 13 37.5 12 34.5 3 30.0 19 23.5 1 ***** ** ***** HIG. 26.5 7 27.0 25 33.5 29 35.0 26 35.5 23 40.0 29 37.5 1 37.5 12 36.0 17 33.6 2 31.5 8 28.5 5 40.0 YEAR 2003 1987 2001 1991 1987 1995 1991 2003 1979 2002 1995 1990 1995 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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 1978 13.0 10 7.0 5 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 16.0 20 90.0 1 35.0 20 ***** 1979 7.0 5 ***** ** 25.0 27 10.0 28 8.0 8 5.0 11 2.0 9 1.0 2 21.0 20 55.0 8 ***** ** 60.0 8 ***** 1980 22.0 23 15.0 12 25.0 4 9.0 17 1.0 1 3.0 18 25.0 17 18.0 11 5.0 15 70.0 20 45.0 18 35.0 26 70.0 1981 37.0 12 37.0 11 7.0 14 44.0 1 42.0 16 7.0 6 20.0 6 4.0 9 107.0 22 34.0 16 45.0 6 12.0 18 107.0 1982 30.0 14 51.0 5 13.0 3 2.0 8 10.0 27 8.0 27 ***** ** ***** ** ***** ** ***** ** 21.0 26 8.0 6 ***** 1983 31.0 25 30.0 22 ***** ** 7.0 25 9.0 29 26.5 27 18.0 29 19.5 26 36.0 14 123.5 12 26.0 26 76.0 14 ***** 1984 22.5 10 10.5 17 15.5 16 5.5 26 44.5 1 43.0 15 5.0 26 26.0 3 7.0 15 40.0 20 21.0 29 16.0 15 44.5 1985 16.0 23 22.0 6 13.5 10 11.5 16 9.5 3 4.5 21 13.5 29 20.0 26 31.0 20 33.5 22 25.5 19 30.0 14 33.5 1986 51.0 20 9.0 5 14.0 7 7.0 17 4.0 28 5.0 22 6.0 21 10.0 7 74.0 30 101.0 24 17.5 5 16.0 9 101.0 1987 24.0 11 12.0 6 41.0 20 22.0 5 10.0 30 5.0 30 32.0 3 64.0 15 29.0 23 85.0 9 17.0 26 24.0 13 85.0 1988 37.0 19 17.0 3 7.5 5 4.0 1 37.5 2 39.0 24 11.0 18 48.0 29 17.0 18 69.0 22 26.0 5 20.0 20 69.0 1989 32.0 4 25.0 2 40.0 16 4.5 30 11.0 29 5.0 5 7.5 10 37.0 18 144.0 19 53.0 10 38.0 7 38.0 7 144.0 1990 11.0 24 13.5 20 25.0 16 17.0 2 33.0 13 12.5 21 6.0 29 4.0 1 26.0 15 106.0 14 48.0 13 39.0 26 106.0 1991 44.0 5 23.0 5 12.0 15 10.0 13 22.5 11 1.0 8 27.0 14 6.0 26 33.0 25 7.0 29 44.4 7 32.0 16 44.4 1992 ***** ** 29.0 15 35.0 23 22.5 27 65.0 11 9.5 4 54.0 8 44.5 29 108.0 26 66.2 15 97.8 26 17.8 18 ***** 1993 25.4 15 45.2 16 8.4 1 14.6 23 9.2 9 26.8 12 17.4 27 6.4 23 66.0 8 17.4 4 27.0 1 ***** ** ***** 1994 14.8 5 31.4 3 6.6 31 ***** ** 16.2 6 40.8 4 0.0 ** 10.4 30 21.0 30 134.6 20 30.4 19 31.4 6 ***** 1995 9.0 18 16.0 24 9.2 17 5.8 13 1.2 28 27.2 22 6.4 7 6.0 8 85.2 21 37.4 17 30.6 26 22.6 17 85.2 1996 14.0 8 28.6 11 10.6 13 22.4 3 13.6 26 10.6 22 13.8 1 10.6 28 90.0 19 63.4 28 51.0 12 16.0 17 90.0 1997 19.8 4 16.8 21 39.4 8 32.0 11 6.8 20 64.2 3 31.4 7 2.0 21 60.2 5 12.0 31 72.0 6 70.8 17 72.0 1998 24.6 2 31.0 19 9.6 26 27.4 6 3.8 1 9.0 27 11.4 8 14.8 13 14.2 7 210.0 8 23.0 29 19.6 2 210.0 1999 48.8 1 13.6 4 12.0 17 16.0 7 15.2 8 0.6 28 54.0 12 13.8 30 53.4 23 76.0 25 45.6 10 46.0 16 76.0 2000 10.6 28 15.6 8 24.8 12 0.0 ** 17.4 4 21.0 13 3.4 9 23.0 5 23.0 2 72.4 14 39.0 6 15.2 9 72.4 2001 44.0 20 13.6 22 21.6 26 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 2002 ***** ** ***** ** 36.8 10 42.5 22 17.0 13 4.8 30 5.4 23 28.9 11 5.3 14 76.0 22 95.0 14 37.4 2 ***** 2003 26.0 16 24.0 28 28.0 8 15.0 17 21.5 24 38.0 25 2.5 25 10.0 26 97.0 7 166.0 20 32.5 3 ***** ** ***** HIG. 51.0 20 51.0 5 41.0 20 44.0 1 65.0 11 64.2 3 54.0 8 64.0 15 144.0 19 210.0 8 97.8 26 76.0 14 210.0 YEAR 1986 1982 1987 1981 1992 1997 1992 1987 1989 1998 1992 1983 1998 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1978 20.0 14.0 ****** ****** ****** ****** ****** ****** ****** 28.0 269.0 89.0 ****** 8.1 ***** ***** 91.9 1979 12.0 ****** 53.0 38.0 14.0 6.0 2.0 2.0 38.0 107.0 ****** 133.0 ****** 16.0 14.3 10.4 59.3 1980 56.0 58.0 69.0 24.0 1.0 6.0 30.0 54.0 15.0 116.0 125.0 48.0 602.0 30.4 5.1 16.4 48.0 1981 48.0 56.0 24.0 61.0 71.0 13.0 38.0 12.0 115.0 107.0 79.0 27.0 651.0 19.7 22.3 25.3 32.7 1982 93.0 80.0 46.0 5.0 28.1 18.0 ****** ****** ****** ****** 147.5 14.0 ****** 50.7 11.8 ***** 37.4 1983 118.0 32.5 ****** 15.0 34.5 80.0 34.0 47.0 95.5 213.0 77.5 209.0 ****** 15.7 13.5 18.5 52.2 1984 34.0 40.5 41.0 11.0 51.0 48.0 6.0 85.0 10.0 139.0 104.0 66.0 635.5 18.2 17.3 15.9 48.6 1985 55.5 87.0 38.0 19.5 13.0 15.0 46.5 43.0 65.5 102.7 100.0 104.5 690.2 26.2 6.9 22.5 44.5 1986 76.5 27.0 52.5 18.0 15.5 7.0 7.5 17.5 196.5 215.5 86.0 56.0 775.5 20.1 5.2 28.6 46.1 1987 32.0 52.5 110.5 83.0 18.0 5.5 56.5 195.5 109.0 292.5 68.0 113.2 1136.2 17.2 9.4 31.8 41.7 1988 93.3 67.2 29.0 23.0 67.0 80.5 41.0 132.0 32.0 86.5 90.5 54.5 796.5 23.8 21.4 25.7 29.1 1989 111.5 67.5 81.5 8.5 20.0 5.0 16.5 70.0 272.0 221.0 62.0 108.0 1043.5 25.0 3.2 34.4 37.5 1990 58.0 40.5 68.0 39.5 67.0 19.5 16.0 13.0 44.0 220.0 64.5 123.0 773.0 21.5 16.3 9.4 52.7 1991 62.0 93.5 40.0 10.5 52.5 1.5 29.0 9.0 76.0 16.1 107.2 56.4 553.7 35.3 11.6 20.6 32.5 1992 ****** 113.0 102.0 89.0 133.5 37.5 73.0 70.0 174.0 138.4 193.8 66.4 ****** 18.1 21.8 26.6 33.5 1993 69.6 108.0 56.2 32.0 25.2 104.0 47.4 18.4 204.2 50.6 151.0 ****** ****** 27.0 18.6 31.2 23.3 1994 38.2 94.0 35.0 ****** 43.0 147.2 0.0 38.8 73.6 253.8 109.6 89.0 ****** 18.1 20.6 12.2 49.1 1995 24.8 47.8 19.2 27.4 1.4 52.8 20.0 16.0 139.3 147.4 48.2 101.0 645.3 14.2 12.6 27.2 46.0 1996 44.0 124.0 43.2 69.0 16.2 54.4 13.8 24.2 185.0 204.4 81.6 54.2 914.0 23.1 15.3 24.4 37.2 1997 73.0 67.0 116.2 40.2 17.2 109.4 74.6 5.0 183.8 36.4 207.8 190.4 1121.0 22.9 14.9 23.5 38.8 1998 63.6 108.2 24.0 73.2 12.0 17.0 17.6 40.0 62.0 256.2 75.6 46.4 795.8 24.6 12.8 15.0 47.5 1999 97.2 16.0 27.6 45.6 62.8 0.6 123.4 32.0 122.7 114.8 124.2 59.8 826.7 17.0 13.2 33.6 36.1 2000 37.4 57.0 86.2 0.0 63.6 48.0 7.6 54.0 51.6 245.8 125.4 61.6 838.2 21.5 13.3 13.5 51.6 2001 81.8 36.2 72.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 100.0 ***** ***** ***** 2002 ****** ****** 94.6 118.6 62.6 9.6 19.2 43.8 5.3 106.9 319.2 141.6 ****** 10.3 20.7 7.4 61.6 2003 44.0 99.6 111.5 62.0 36.5 64.0 5.5 26.5 303.5 191.0 60.5 ****** ****** 25.4 16.2 33.4 25.0 MEAN 60.1 66.1 60.0 39.7 38.6 39.6 31.5 45.6 111.9 150.4 119.9 87.5 850.9 21.9 13.8 22.2 42.1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 4 4 *** *** *** *** *** *** *** 5 12 5 *** 1979 4 *** 8 11 5 11 3 3 6 6 *** 7 *** 1980 9 10 10 5 1 2 2 6 6 8 5 4 68 1981 4 10 10 10 14 7 11 10 4 11 5 6 102 1982 11 10 11 7 17 6 *** *** *** *** 15 4 *** 1983 11 3 *** 6 11 14 8 12 12 6 8 6 *** 1984 5 6 11 7 5 4 3 10 2 6 10 12 81 1985 10 13 13 3 5 7 11 6 6 11 10 15 110 1986 5 6 9 5 9 4 3 3 7 10 10 9 80 1987 8 9 16 12 7 2 5 12 9 13 7 11 111 1988 10 12 12 14 7 8 10 10 4 4 8 7 106 1989 8 5 6 3 7 1 4 9 5 10 6 11 75 1990 10 9 7 5 5 4 4 5 3 9 5 8 74 1991 5 10 12 2 6 2 2 3 6 4 7 5 64 1992 *** 10 10 12 8 5 4 8 7 11 8 13 *** 1993 13 16 11 10 9 13 9 6 12 9 16 *** *** 1994 7 13 16 *** 6 16 0 11 8 13 11 8 *** 1995 9 10 4 8 2 9 4 6 6 9 3 10 80 1996 8 12 12 10 4 11 1 7 11 9 6 5 96 1997 11 11 8 4 7 8 8 4 11 7 6 8 93 1998 10 9 6 7 5 5 5 5 12 9 8 11 92 1999 7 2 8 9 9 1 6 4 12 7 10 5 80 2000 11 9 13 0 11 8 3 6 4 14 7 10 96 2001 6 5 6 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 9 17 12 3 6 6 1 5 11 11 *** 2003 4 11 15 12 5 3 3 4 9 5 3 *** *** MEAN 8 9 10 8 7 6 5 7 7 8 8 8 91 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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 1978 4 4 *** *** *** *** *** *** *** 5 12 5 *** 1979 3 *** 7 10 3 2 1 2 5 5 *** 7 *** 1980 9 10 10 5 1 2 2 6 6 8 5 4 68 1981 4 7 8 7 6 5 9 4 3 8 4 5 70 1982 9 5 6 4 5 4 *** *** *** *** 15 2 *** 1983 10 2 *** 5 7 10 4 7 8 6 6 6 *** 1984 4 6 10 5 5 3 1 9 2 6 10 11 72 1985 8 13 8 2 3 6 6 4 6 9 8 13 86 1986 5 6 9 3 6 3 2 3 7 10 9 8 71 1987 5 9 14 12 7 1 5 11 9 13 7 10 103 1988 8 11 10 9 6 6 8 10 4 4 7 7 90 1989 8 5 6 3 7 1 4 6 5 9 5 10 69 1990 10 8 7 5 4 4 4 5 3 9 4 8 71 1991 5 9 10 1 6 1 2 3 6 4 6 5 58 1992 *** 10 10 12 8 5 4 8 7 8 7 11 *** 1993 11 10 10 7 5 12 7 5 12 6 13 *** *** 1994 5 12 11 *** 5 14 0 9 7 12 9 8 *** 1995 7 8 3 5 1 8 4 5 6 9 3 10 69 1996 5 11 9 10 2 11 1 7 10 9 5 5 85 1997 8 9 7 3 4 7 8 3 11 6 6 7 79 1998 8 8 5 6 5 4 4 4 11 7 8 10 80 1999 7 2 7 6 9 0 6 3 11 5 9 4 69 2000 8 9 11 0 11 7 3 5 4 12 7 10 87 2001 6 5 6 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 8 16 12 3 6 6 1 5 11 11 *** 2003 4 11 15 12 5 3 3 4 9 5 3 *** *** MEAN 7 8 9 6 6 5 4 6 7 8 7 8 81 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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 1978 1 0 *** *** *** *** *** *** *** 1 6 3 *** 1979 0 *** 2 1 0 0 0 0 1 3 *** 2 *** 1980 3 2 2 0 0 0 1 3 0 2 5 1 19 1981 1 1 0 1 2 0 1 0 1 3 3 1 14 1982 3 2 2 0 1 0 *** *** *** *** 6 0 *** 1983 5 1 *** 0 0 2 1 2 4 3 3 5 *** 1984 1 2 1 0 1 1 0 4 0 5 6 3 24 1985 2 2 1 1 0 0 2 2 2 4 4 4 24 1986 2 0 2 0 0 0 0 1 4 6 4 3 22 1987 1 2 3 3 1 0 2 5 4 6 4 4 35 1988 3 2 0 0 1 3 1 4 2 1 5 1 23 1989 4 3 3 0 1 0 0 2 3 6 1 4 27 1990 2 1 2 2 3 1 0 0 2 3 2 6 24 1991 1 5 1 1 2 0 1 0 3 0 2 3 19 1992 *** 5 3 3 4 0 1 1 4 3 3 2 *** 1993 1 3 0 1 0 4 2 0 5 2 7 *** *** 1994 2 4 0 *** 2 4 0 1 3 6 4 4 *** 1995 0 1 0 0 0 1 0 0 5 6 2 4 19 1996 1 5 1 3 1 1 1 1 4 6 3 3 30 1997 3 3 6 1 0 3 2 0 6 1 3 5 33 1998 2 4 0 3 0 0 1 2 2 3 4 1 22 1999 3 1 1 1 2 0 3 2 4 3 5 1 26 2000 1 2 4 0 2 1 0 3 2 7 3 2 27 2001 2 2 4 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 3 2 2 0 0 1 0 2 5 7 *** 2003 1 4 4 2 1 2 0 1 6 2 3 *** *** MEAN 2 2 2 1 1 1 1 2 3 4 4 3 26 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 87 90 *** *** *** *** *** *** *** 87 87 84 *** 1979 88 *** 90 89 82 90 88 85 87 87 *** 85 *** 1980 85 85 90 90 85 81 82 88 88 86 88 86 86 1981 84 86 88 88 84 80 85 85 81 86 90 89 86 1982 88 88 89 90 90 83 *** *** *** *** 92 90 *** 1983 87 87 *** 85 83 87 82 87 89 88 89 91 *** 1984 89 91 93 91 83 84 79 87 86 82 89 88 87 1985 89 88 88 88 81 81 82 80 84 86 89 88 85 1986 83 88 89 88 86 78 80 77 77 90 90 83 84 1987 86 87 91 87 86 83 85 89 90 90 88 86 87 1988 87 88 91 89 89 81 87 88 90 89 87 89 88 1989 84 86 90 85 84 79 79 85 81 89 85 89 85 1990 88 83 84 87 84 77 80 84 86 83 87 87 84 1991 89 89 92 86 87 89 84 83 86 88 90 85 87 1992 *** 86 86 89 91 88 91 89 87 84 84 84 *** 1993 79 90 85 86 86 91 87 86 90 84 91 *** *** 1994 89 88 90 *** 90 91 87 89 76 90 91 83 *** 1995 89 94 87 86 88 83 86 89 85 85 82 86 87 1996 88 87 91 90 91 89 83 84 87 86 86 91 88 1997 92 91 92 92 93 91 91 87 93 84 89 86 90 1998 88 84 87 85 85 82 86 84 89 87 88 91 86 1999 89 84 89 89 90 86 87 88 88 87 87 88 88 2000 83 83 88 86 89 83 80 84 90 90 89 88 86 2001 87 83 85 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 87 94 92 89 86 91 88 91 93 88 *** 2003 82 89 92 86 82 86 85 86 87 89 85 *** *** MEAN 87 87 89 88 87 85 84 86 86 87 88 87 87 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 63 71 *** *** *** *** *** *** *** 70 70 66 *** 1979 67 *** 70 77 67 75 74 68 70 73 *** 67 *** 1980 70 69 76 72 68 65 62 72 75 66 69 67 69 1981 61 62 71 73 69 67 71 72 67 67 63 50 66 1982 66 62 71 69 76 73 *** *** *** *** 73 64 *** 1983 63 60 *** 60 69 76 70 72 75 67 70 64 *** 1984 71 73 82 72 69 70 69 75 70 64 74 73 72 1985 74 70 70 65 64 67 71 60 72 72 76 72 69 1986 64 76 73 72 70 64 65 61 63 75 78 71 69 1987 70 77 83 74 72 71 70 77 70 75 74 69 74 1988 74 73 73 74 73 67 72 75 76 79 70 71 73 1989 64 59 73 69 66 66 71 72 71 73 65 76 69 1990 76 63 66 67 68 67 69 70 72 66 67 66 68 1991 78 75 83 69 68 80 73 71 72 69 73 67 73 1992 *** 67 72 77 79 74 84 78 78 69 66 72 *** 1993 64 78 66 69 77 86 77 73 81 74 80 *** *** 1994 76 75 79 *** 83 83 78 79 67 83 85 70 *** 1995 82 88 76 74 79 75 73 76 75 76 68 73 76 1996 80 81 84 81 84 80 74 76 76 73 76 85 79 1997 87 90 88 83 89 86 80 76 92 76 74 73 83 1998 78 66 70 71 72 68 65 66 77 72 75 78 72 1999 66 63 72 74 85 75 75 76 74 76 71 64 73 2000 69 66 71 62 74 67 65 68 75 77 73 74 70 2001 70 65 68 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 73 91 93 85 82 90 82 93 88 80 *** 2003 75 81 80 75 66 72 73 71 75 71 67 *** *** MEAN 71 71 75 73 74 73 72 73 74 73 73 70 73 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 80 82 *** *** *** *** *** *** *** 86 86 85 *** 1979 85 *** 85 88 84 85 82 82 78 82 *** 75 *** 1980 76 81 85 80 79 80 73 84 87 81 85 80 81 1981 76 80 85 82 82 81 83 85 84 90 88 87 84 1982 86 85 85 84 88 82 *** *** *** *** 91 88 *** 1983 85 83 *** 81 83 84 80 85 87 88 89 88 *** 1984 91 86 91 85 82 81 83 87 85 88 87 86 86 1985 89 87 86 82 77 79 83 79 85 85 88 86 84 1986 83 87 82 84 85 77 76 76 78 83 87 83 82 1987 83 86 87 84 84 84 79 83 81 82 80 77 83 1988 84 85 84 78 76 72 78 86 87 88 86 87 83 1989 82 84 83 84 81 77 83 85 83 86 85 86 83 1990 89 80 82 81 82 81 83 84 86 85 87 86 84 1991 88 90 88 83 80 86 83 82 84 87 89 83 85 1992 *** 87 86 88 90 87 91 90 89 87 87 89 *** 1993 86 90 84 81 87 90 87 85 90 90 91 *** *** 1994 89 86 89 *** 90 87 87 89 82 93 93 89 *** 1995 90 93 89 84 90 83 87 88 90 89 87 88 88 1996 91 89 92 88 90 89 88 89 89 89 90 90 90 1997 90 91 90 91 94 92 91 86 91 88 88 87 90 1998 92 84 86 83 83 78 80 84 89 86 89 88 85 1999 87 80 86 85 90 81 89 87 87 87 90 85 86 2000 81 86 85 79 83 78 76 81 87 90 87 89 84 2001 89 83 82 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 83 94 96 92 90 94 93 93 96 92 *** 2003 86 90 89 86 75 81 82 84 89 90 89 *** *** MEAN 86 86 86 84 85 83 83 85 86 87 88 86 85 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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 1978 *** *** *** *** *** *** *** *** *** *** *** 0 *** 1979 4 *** 3 0 0 0 0 0 0 0 *** 1 *** 1980 8 8 0 0 0 0 0 0 0 0 0 0 16 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 6 9 2 0 0 *** *** *** *** *** 0 19 *** 1983 16 2 *** 0 0 0 0 0 0 0 0 0 *** 1984 0 1 0 0 0 0 0 0 0 0 0 0 1 1985 0 1 0 0 0 0 0 0 0 0 0 0 1 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 2 0 0 0 0 0 0 0 0 0 0 2 1992 *** 0 *** *** 0 0 0 0 0 0 0 0 *** 1993 0 2 0 0 0 0 0 0 0 0 0 *** *** 1994 0 0 0 *** 0 0 0 0 0 0 0 0 *** 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 1 0 0 *** *** *** *** *** *** *** *** *** *** 2002 *** *** *** *** 0 0 0 0 0 0 0 0 *** 2003 0 0 0 0 0 0 0 0 0 0 0 *** *** MEAN 2 1 0 0 0 0 0 0 0 0 0 1 4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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 1978 *** *** *** *** *** *** *** *** *** *** *** 0 *** 1979 0 *** 0 0 0 0 13 9 9 0 *** 0 *** 1980 0 0 0 0 0 2 18 17 0 0 0 0 37 1981 0 0 0 0 1 12 23 22 1 0 0 0 59 1982 0 0 0 1 1 *** *** *** *** *** 0 0 *** 1983 0 0 *** 0 0 1 19 25 0 0 0 0 *** 1984 0 0 0 0 0 0 9 15 1 0 0 0 25 1985 0 0 0 0 0 6 20 8 4 0 0 0 38 1986 0 0 0 0 0 4 14 15 6 0 0 0 39 1987 0 0 0 0 0 5 10 24 2 0 0 0 41 1988 0 0 0 0 0 18 22 22 4 0 0 0 66 1989 0 0 0 0 0 5 21 26 5 0 0 0 57 1990 0 0 0 0 0 2 16 17 5 0 0 0 40 1991 0 0 0 0 0 2 15 17 6 0 0 0 40 1992 *** 0 *** *** 0 7 19 9 0 0 0 0 *** 1993 0 0 0 0 0 0 12 25 7 0 0 *** *** 1994 0 0 0 *** 0 2 13 22 2 0 0 0 *** 1995 0 0 0 0 0 4 22 29 12 0 0 0 67 1996 0 0 0 0 0 2 18 22 9 0 0 0 51 1997 0 0 0 0 1 10 26 31 1 0 0 0 69 1998 0 0 0 0 0 16 23 27 7 0 0 0 73 1999 0 0 0 0 0 4 11 25 7 0 0 0 47 2000 0 0 0 0 0 4 11 25 10 0 0 0 50 2001 0 0 0 *** *** *** *** *** *** *** *** *** *** 2002 *** *** *** *** 0 3 22 27 14 1 0 0 *** 2003 0 0 0 0 0 0 16 16 4 0 0 *** *** MEAN 0 0 0 0 0 5 17 21 5 0 0 0 48 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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 1978 0 0 *** *** *** *** *** *** *** 0 0 0 *** 1979 0 *** 0 0 0 0 0 0 0 0 *** 0 *** 1980 *** *** 0 0 0 0 0 0 0 0 0 0 *** 1981 0 *** 0 0 0 0 0 0 0 0 0 0 *** 1982 0 0 0 0 0 0 *** *** *** *** 0 0 *** 1983 0 0 *** 0 0 0 0 0 0 0 0 0 *** 1984 0 0 0 0 0 0 0 0 0 0 0 0 0 1985 0 0 0 0 0 0 0 0 0 0 0 0 0 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1993 0 0 0 0 0 0 0 0 0 0 0 *** *** 1994 0 0 0 *** 0 0 0 0 0 0 0 0 *** 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 0 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 0 0 0 0 0 0 0 0 0 0 *** 2003 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 21 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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 1978 0 0 *** *** *** *** *** *** *** 1 0 0 *** 1979 0 *** 0 0 0 2 7 17 12 0 *** 0 *** 1980 *** *** 0 0 6 4 21 7 1 0 0 0 *** 1981 0 *** 0 0 2 1 12 19 9 0 0 0 *** 1982 0 0 0 2 0 1 *** *** *** *** 0 0 *** 1983 0 0 *** 1 1 0 12 8 0 0 0 0 *** 1984 0 0 0 0 1 2 16 2 1 0 0 0 22 1985 0 0 0 0 3 5 2 20 3 0 0 0 33 1986 0 0 0 1 1 5 17 25 20 1 0 0 70 1987 0 0 0 0 3 14 8 16 0 0 0 0 41 1988 0 0 0 0 0 8 10 4 2 0 1 0 25 1989 0 0 0 0 5 3 21 21 9 2 0 0 61 1990 0 0 0 2 0 9 20 6 5 2 0 0 44 1991 0 0 0 1 1 13 24 17 4 1 0 0 61 1992 *** 0 0 1 0 8 9 5 0 3 0 0 *** 1993 0 0 0 0 1 3 7 13 1 0 0 *** *** 1994 0 0 0 *** 1 0 3 5 1 0 0 0 *** 1995 0 0 0 1 1 10 17 18 14 0 1 0 62 1996 0 0 0 0 3 1 23 17 10 2 0 0 56 1997 0 0 0 1 2 5 8 20 2 1 0 0 39 1998 0 0 0 2 1 17 20 22 3 1 0 0 66 1999 0 0 0 0 0 2 14 29 6 1 0 0 52 2000 0 0 0 4 1 4 22 26 1 0 0 0 58 2001 0 0 2 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 0 0 2 8 21 20 16 5 0 0 *** 2003 0 0 0 3 1 0 8 20 7 2 0 *** *** MEAN 0 0 0 1 2 5 14 16 6 1 0 0 45 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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 1978 0 0 *** *** *** *** *** *** *** 0 0 0 *** 1979 0 *** 0 0 0 0 0 0 0 0 *** 0 *** 1980 *** *** 0 0 0 0 0 0 0 0 0 0 *** 1981 0 *** 0 0 0 0 0 0 0 0 0 0 *** 1982 0 0 0 0 0 0 *** *** *** *** 0 0 *** 1983 0 0 *** 0 0 0 0 0 0 0 0 0 *** 1984 0 0 0 0 0 0 0 0 0 0 0 0 0 1985 0 0 0 0 0 0 0 0 0 0 0 0 0 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1993 0 0 0 0 0 0 0 0 0 0 0 *** *** 1994 0 0 0 *** 0 0 0 0 0 0 0 0 *** 1995 0 0 0 0 0 1 0 0 0 0 0 0 1 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 0 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 0 0 0 0 0 0 0 0 0 0 *** 2003 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 CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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 1978 0 0 *** *** *** *** *** *** *** 0 0 0 *** 1979 0 *** 0 0 0 0 0 0 0 0 *** 0 *** 1980 *** *** 0 0 0 0 0 0 0 0 0 0 *** 1981 0 *** 0 0 0 0 0 0 0 0 0 0 *** 1982 0 0 0 0 0 0 *** *** *** *** 0 0 *** 1983 0 0 *** 0 0 0 0 0 0 0 0 0 *** 1984 0 0 0 0 0 0 0 0 0 0 0 0 0 1985 0 0 0 0 0 0 0 0 0 0 0 0 0 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1993 0 0 0 0 0 0 0 0 0 0 0 *** *** 1994 0 0 0 *** 0 0 0 0 0 0 0 0 *** 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 0 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 0 0 0 0 0 0 0 0 0 0 *** 2003 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 CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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 -------------- 1978 *** *** *** *** *** *** *** *** *** *** *** 6 *** 12 4 12 19 1979 9 *** 9 0 0 0 0 0 0 0 *** 10 *** 12 18 3 12 1980 20 13 3 0 0 0 0 0 0 0 0 3 39 12 16 3 8 1981 14 9 0 1 0 0 0 0 0 0 1 4 29 11 27 4 3 1982 15 15 5 0 0 *** *** *** *** *** 5 24 *** 11 16 3 27 1983 26 16 *** 0 0 0 0 0 0 0 0 13 *** 12 16 2 28 1984 15 17 3 0 0 0 0 0 0 0 0 10 45 12 9 3 17 1985 11 9 11 0 0 0 0 0 0 0 0 2 33 12 15 3 15 1986 5 1 3 0 0 0 0 0 0 0 0 6 15 12 12 3 17 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 ** ** ** ** 1988 3 2 0 0 0 0 0 0 0 0 0 1 6 12 29 2 19 1989 17 15 0 0 0 0 0 0 0 0 0 0 32 1 2 2 26 1990 15 8 4 0 0 0 0 0 0 0 0 6 33 12 20 3 21 1991 8 5 0 0 0 0 0 0 0 0 0 7 20 12 18 2 16 1992 *** 10 *** *** 0 0 0 0 0 0 0 1 *** 12 31 3 11 1993 8 4 0 0 0 0 0 0 0 0 0 *** *** 1 13 2 18 1994 3 6 0 *** 0 0 0 0 0 0 0 4 *** 12 7 2 21 1995 0 0 0 0 0 0 0 0 0 0 0 7 7 12 18 12 26 1996 3 3 0 0 0 0 0 0 0 0 0 0 6 1 18 2 24 1997 2 8 3 0 0 0 0 0 0 0 0 1 14 12 29 3 21 1998 4 9 1 0 0 0 0 0 0 0 0 0 14 1 8 3 3 1999 5 0 0 0 0 0 0 0 0 0 0 1 6 12 6 1 23 2000 4 5 2 0 0 0 0 0 0 0 0 0 11 1 16 3 17 2001 8 4 0 *** *** *** *** *** *** *** *** *** *** 1 17 2 14 2002 *** *** *** *** 0 0 0 0 0 0 0 8 *** 12 18 12 31 2003 2 1 1 0 0 0 0 0 0 0 0 *** *** 1 4 3 3 MEAN 9 7 2 0 0 0 0 0 0 0 0 5 23 11 16 4 3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 7.5 7.7 ****** ****** ****** ****** ****** ****** ****** 19.0 10.3 11.1 ****** 1979 7.8 ****** 9.6 14.2 18.4 21.0 25.2 26.0 23.8 19.6 ****** 9.6 ****** 1980 6.0 5.3 8.3 14.2 19.0 22.9 26.8 24.8 21.6 17.0 14.7 11.0 16.0 1981 7.8 8.4 11.1 13.1 18.8 22.9 25.5 26.0 23.6 18.5 12.8 10.8 16.6 1982 6.3 5.2 8.0 15.6 18.6 22.7 ****** ****** ****** ****** 9.7 5.0 ****** 1983 5.0 7.5 ****** 15.5 20.9 23.0 26.7 24.9 21.5 17.2 14.3 8.4 ****** 1984 6.8 4.3 8.8 14.8 18.1 22.2 26.5 24.1 22.7 17.8 14.2 6.3 15.5 1985 6.7 6.8 7.1 15.0 21.3 24.8 24.6 25.8 23.3 17.7 14.1 9.2 16.4 1986 9.0 7.8 7.4 15.0 18.9 24.1 26.4 26.9 24.9 19.0 13.1 8.9 16.8 1987 10.0 8.8 9.2 12.7 20.1 24.6 25.4 25.4 21.9 14.8 12.7 9.5 16.3 1988 6.2 6.9 9.7 14.6 18.4 25.3 25.6 24.4 22.7 16.9 13.5 10.4 16.2 1989 5.3 5.6 10.6 15.9 20.2 24.3 26.9 26.4 23.2 20.0 14.2 9.9 16.9 1990 5.8 8.1 10.3 14.8 18.7 24.3 26.5 24.6 23.9 19.6 15.1 9.6 16.8 1991 7.6 6.5 8.5 15.3 18.6 24.0 26.9 26.2 22.7 20.1 13.8 9.1 16.6 1992 ****** 7.1 8.3 12.7 16.1 23.1 24.3 23.8 21.9 17.7 13.6 9.1 ****** 1993 6.6 5.4 9.8 14.7 18.8 22.4 24.5 25.6 22.3 17.0 10.2 ****** ****** 1994 8.1 6.0 9.5 ****** 19.4 21.3 24.5 24.9 22.1 18.6 14.7 7.7 ****** 1995 9.0 8.8 10.8 15.9 20.9 24.2 25.7 26.3 24.0 17.4 15.5 8.5 17.3 1996 7.1 7.8 7.8 12.1 20.5 22.2 26.5 26.1 24.0 18.3 13.1 11.5 16.4 1997 9.2 6.6 8.6 15.4 20.6 24.5 25.4 26.6 21.6 20.9 13.1 9.7 16.9 1998 6.8 6.9 10.8 16.5 20.5 26.1 26.9 27.2 23.1 18.5 15.8 11.9 17.6 1999 8.5 11.3 11.1 14.8 18.3 23.6 25.6 28.3 23.2 19.9 12.8 10.6 17.3 2000 8.2 7.9 9.5 18.1 19.3 23.3 27.1 27.3 23.8 17.5 12.7 9.9 17.1 2001 7.3 9.5 12.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2002 ****** ****** 12.8 13.5 18.0 23.8 26.6 26.3 25.2 22.0 15.0 6.4 ****** 2003 9.2 8.4 8.1 12.5 19.3 22.1 25.2 26.1 22.8 20.3 13.2 ****** ****** MEAN 7.4 7.3 9.5 14.7 19.2 23.4 25.9 25.8 23.0 18.6 13.4 9.3 16.5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 3.2 4.4 ****** ****** ****** ****** ****** ****** ****** 15.5 6.9 7.0 ****** 1979 4.2 ****** 6.4 11.5 14.1 17.8 21.6 21.7 19.5 16.1 ****** 5.5 ****** 1980 2.0 1.7 5.6 10.6 14.1 18.0 21.1 21.2 18.5 12.8 11.1 6.9 12.0 1981 3.3 4.1 7.6 9.6 14.5 18.2 21.7 22.5 19.3 14.9 9.1 5.8 12.5 1982 3.7 1.1 4.7 11.9 15.9 18.7 ****** ****** ****** ****** 7.1 1.4 ****** 1983 0.9 3.2 ****** 10.5 16.8 19.7 22.2 21.3 18.5 13.7 11.1 4.8 ****** 1984 4.0 1.5 6.9 11.6 13.8 17.8 21.9 21.0 19.0 13.6 11.2 3.3 12.1 1985 4.0 3.4 3.9 10.9 16.2 20.0 20.5 20.3 19.6 14.2 11.3 6.1 12.5 1986 4.7 5.0 4.2 11.5 15.2 18.8 21.1 21.1 19.4 15.8 10.5 5.2 12.7 1987 6.1 5.8 7.1 9.4 16.5 20.7 21.1 22.2 18.0 11.7 9.2 5.5 12.8 1988 3.2 3.8 6.7 11.0 14.6 20.0 21.5 21.2 19.8 14.4 10.1 7.2 12.8 1989 1.1 1.2 7.3 11.9 15.7 19.2 22.5 22.7 19.1 16.7 10.1 7.1 12.9 1990 3.2 3.5 5.9 10.6 14.5 19.2 22.1 20.7 20.4 15.4 11.4 5.8 12.7 1991 4.9 3.8 6.4 11.5 14.5 21.1 23.1 22.1 19.0 16.6 11.1 5.3 13.3 1992 ****** 3.5 4.9 9.9 13.8 19.9 22.2 21.1 19.1 13.9 9.6 5.9 ****** 1993 2.2 3.1 5.8 10.6 15.4 20.5 21.4 22.0 19.9 13.9 8.1 ****** ****** 1994 5.4 3.1 7.0 ****** 17.2 19.0 21.5 22.2 17.2 16.6 12.9 4.3 ****** 1995 6.7 7.5 8.1 12.5 18.4 20.4 22.1 23.4 20.8 14.4 11.6 5.5 14.3 1996 4.8 5.3 6.1 9.8 18.4 19.7 23.1 22.9 21.0 15.1 10.4 9.7 13.9 1997 7.5 5.2 7.0 13.4 19.1 22.6 23.1 23.4 20.2 17.5 10.2 6.5 14.7 1998 4.5 2.9 7.5 12.6 16.7 21.4 22.2 22.7 20.3 15.1 12.8 9.4 14.0 1999 5.0 6.6 8.0 11.5 16.2 19.9 22.4 25.1 20.0 16.9 9.7 6.8 14.0 2000 4.0 4.0 6.1 13.5 15.9 18.6 21.8 22.8 20.8 14.9 9.7 7.1 13.3 2001 4.2 5.1 8.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2002 ****** ****** 9.2 12.3 16.9 21.6 24.1 24.9 22.8 20.7 13.7 4.1 ****** 2003 5.7 6.0 5.9 9.3 14.3 18.3 21.4 22.3 19.8 17.2 9.6 ****** ****** MEAN 4.1 3.9 6.5 11.2 15.8 19.6 22.0 22.2 19.7 15.3 10.4 5.9 13.1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 4.98 5.34 ****** ****** ****** ****** ****** ****** ****** 11.19 6.41 6.41 ****** 1979 5.22 ****** 6.20 8.62 10.25 12.98 16.42 16.61 14.73 11.65 ****** 5.81 ****** 1980 4.51 4.42 5.76 8.08 10.59 13.17 15.94 16.08 13.57 9.54 8.42 6.39 9.71 1981 4.99 5.24 6.67 7.67 10.48 13.30 16.53 17.35 14.43 10.82 7.49 5.92 10.07 1982 5.11 4.21 5.44 8.93 11.50 13.73 ****** ****** ****** ****** 6.39 4.41 ****** 1983 4.27 4.92 ****** 8.11 12.16 14.61 17.12 16.20 13.56 10.02 8.45 5.66 ****** 1984 5.22 4.33 6.30 8.70 10.09 13.21 16.80 15.84 13.97 10.07 8.48 4.90 9.83 1985 5.17 5.00 5.23 8.31 11.74 14.91 15.32 15.25 14.51 10.35 8.55 6.00 10.03 1986 5.47 5.51 5.21 8.65 10.97 13.82 15.97 15.96 14.45 11.48 8.15 5.65 10.11 1987 5.97 5.82 6.38 7.55 12.00 15.63 15.98 17.19 13.24 8.79 7.44 5.78 10.15 1988 4.86 5.11 6.21 8.42 10.61 14.94 16.38 16.04 14.76 10.46 7.99 6.56 10.19 1989 4.21 4.26 6.47 8.85 11.38 14.21 17.44 17.69 14.22 12.22 7.88 6.40 10.44 1990 4.88 4.98 5.97 8.15 10.53 14.21 16.97 15.51 15.28 11.25 8.67 6.01 10.20 1991 5.53 5.14 6.08 8.62 10.51 16.41 18.26 17.02 14.03 11.99 8.45 5.75 10.65 1992 ****** 4.98 5.58 7.72 10.23 14.89 17.19 16.07 14.21 10.12 7.73 5.96 ****** 1993 4.55 4.86 5.89 8.17 11.60 15.42 16.34 16.86 14.89 10.16 6.91 ****** ****** 1994 5.68 4.86 6.33 ****** 12.71 14.04 16.42 17.17 12.58 12.16 9.59 5.39 ****** 1995 6.26 6.59 6.86 9.32 13.60 15.45 17.16 18.44 15.95 10.54 9.02 5.79 11.25 1996 5.51 5.69 5.94 7.70 13.77 14.63 18.18 18.01 16.06 10.98 8.13 7.76 11.03 1997 6.67 5.69 6.42 10.09 14.31 17.67 18.07 18.54 15.29 12.95 7.92 6.22 11.65 1998 5.31 4.82 6.60 9.42 12.32 16.36 17.17 17.67 15.22 11.12 9.41 7.46 11.07 1999 5.57 6.24 6.78 8.61 11.83 14.99 17.46 20.61 15.01 12.40 7.72 6.30 11.13 2000 5.19 5.19 6.00 9.90 11.48 13.75 16.76 17.82 15.68 10.74 7.71 6.41 10.55 2001 5.30 5.61 7.15 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2002 ****** ****** 7.61 9.14 12.47 16.68 19.43 20.36 18.05 16.05 10.29 5.28 ****** 2003 5.88 5.98 5.88 7.52 10.54 13.38 16.22 17.23 14.77 12.49 7.72 ****** ****** MEAN 5.26 5.20 6.21 8.53 11.57 14.68 16.94 17.20 14.72 11.23 8.12 6.01 10.47 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 7.98 8.55 ****** ****** ****** ****** ****** ****** ****** 17.74 10.24 10.23 ****** 1979 8.35 ****** 9.90 13.73 16.28 20.53 25.83 26.13 23.22 18.46 ****** 9.29 ****** 1980 7.22 7.08 9.22 12.88 16.82 20.83 25.11 25.32 21.44 15.16 13.41 10.20 15.39 1981 7.98 8.38 10.65 12.22 16.64 21.04 26.01 27.26 22.76 17.17 11.94 9.47 15.96 1982 8.18 6.75 8.70 14.22 18.24 21.70 ****** ****** ****** ****** 10.22 7.07 ****** 1983 6.85 7.88 ****** 12.93 19.25 23.06 26.91 25.49 21.43 15.91 13.45 9.05 ****** 1984 8.35 6.95 10.07 13.85 16.03 20.88 26.42 24.95 22.06 16.00 13.50 7.84 15.57 1985 8.28 8.00 8.37 13.24 18.60 23.52 24.14 24.03 22.90 16.44 13.62 9.58 15.89 1986 8.76 8.81 8.35 13.77 17.41 21.83 25.15 25.13 22.80 18.20 12.99 9.04 16.02 1987 9.55 9.32 10.19 12.03 19.00 24.61 25.16 27.02 20.93 13.99 11.86 9.25 16.07 1988 7.78 8.18 9.93 13.40 16.84 23.56 25.78 25.26 23.28 16.60 12.72 10.47 16.15 1989 6.74 6.83 10.34 14.09 18.05 22.43 27.39 27.78 22.43 19.34 12.57 10.23 16.52 1990 7.82 7.98 9.54 12.98 16.71 22.43 26.68 24.44 24.09 17.84 13.80 9.60 16.16 1991 8.85 8.23 9.73 13.72 16.68 25.78 28.63 26.76 22.16 18.99 13.45 9.20 16.85 1992 ****** 7.97 8.93 12.31 16.24 23.48 27.00 25.29 22.43 16.07 12.32 9.52 ****** 1993 7.29 7.79 9.42 13.01 18.38 24.29 25.72 26.51 23.47 16.13 11.03 ****** ****** 1994 9.09 7.78 10.12 ****** 20.09 22.17 25.83 26.97 19.90 19.25 15.24 8.62 ****** 1995 10.00 10.53 10.95 14.82 21.48 24.33 26.97 28.93 25.10 16.72 14.33 9.26 17.79 1996 8.81 9.10 9.50 12.27 21.73 23.08 28.52 28.26 25.27 17.42 12.96 12.37 17.44 1997 10.65 9.10 10.26 16.01 22.58 27.73 28.36 29.06 24.08 20.47 12.62 9.94 18.40 1998 8.50 7.72 10.54 14.97 19.49 25.73 26.98 27.74 23.99 17.63 14.96 11.91 17.51 1999 8.92 9.97 10.82 13.71 18.74 23.63 27.41 32.20 23.66 19.63 12.30 10.07 17.59 2000 8.30 8.31 9.59 15.73 18.21 21.72 26.36 27.98 24.69 17.05 12.29 10.24 16.71 2001 8.48 8.98 11.41 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2002 ****** ****** 12.12 14.54 19.72 26.21 30.40 31.82 28.30 25.22 16.32 8.45 ****** 2003 9.40 9.55 9.40 11.99 16.72 21.15 25.53 27.08 23.29 19.76 12.30 ****** ****** MEAN 8.42 8.32 9.92 13.58 18.33 23.16 26.62 27.02 23.20 17.80 12.93 9.60 16.58 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 2.96 2.62 ****** ****** ****** ****** ****** ****** ****** 4.86 2.70 3.41 ****** 1979 2.52 ****** 2.56 2.85 5.24 4.63 6.45 8.11 7.28 4.79 ****** 3.30 ****** 1980 2.62 2.11 2.00 3.79 6.02 7.57 10.74 6.22 4.67 4.71 3.81 3.42 4.81 1981 3.39 3.29 3.02 3.16 5.53 7.17 7.02 6.92 7.14 4.75 3.71 4.64 4.98 1982 2.40 2.46 2.40 4.34 3.57 6.14 ****** ****** ****** ****** 2.20 2.25 ****** 1983 2.45 2.97 ****** 5.34 5.86 5.36 8.42 6.36 4.49 4.18 3.39 2.50 ****** 1984 1.92 1.57 1.36 3.49 5.46 6.25 8.55 5.51 5.78 5.12 3.05 1.92 4.16 1985 1.81 2.51 2.26 4.32 7.34 8.06 6.90 9.81 6.11 4.27 2.89 2.38 4.89 1986 3.26 1.99 2.16 3.84 4.80 8.56 9.67 10.79 9.28 4.14 2.50 2.90 5.32 1987 3.20 2.30 1.68 3.27 5.31 6.88 7.72 6.10 5.79 3.28 3.24 3.19 4.33 1988 1.97 2.26 2.43 3.69 4.95 9.30 7.37 5.63 4.65 2.98 3.38 2.58 4.27 1989 2.43 2.79 2.83 4.49 6.20 8.28 8.33 7.04 6.66 4.66 4.17 2.30 5.01 1990 1.65 3.40 3.72 4.73 5.35 8.34 8.38 6.85 5.98 5.55 4.05 3.20 5.10 1991 1.90 1.88 1.46 4.41 5.37 4.67 7.59 7.62 5.73 4.95 2.77 2.97 4.28 1992 ****** 2.54 2.44 2.81 2.93 5.34 3.76 4.62 4.41 4.79 3.92 2.32 ****** 1993 2.88 1.42 3.24 4.56 3.96 3.29 5.50 6.54 3.78 3.68 1.68 ****** ****** 1994 1.97 1.76 2.22 ****** 2.95 3.55 5.29 4.70 7.14 2.64 1.94 2.33 ****** 1995 1.81 1.06 2.30 3.94 3.80 6.72 6.40 5.71 5.49 3.63 4.24 2.33 3.95 1996 1.45 1.94 1.23 2.19 3.10 4.01 6.52 6.10 5.25 4.24 2.58 1.66 3.36 1997 1.29 0.92 1.22 2.39 2.18 3.47 4.40 6.17 2.22 4.95 2.80 2.57 2.88 1998 1.54 2.81 2.88 4.72 5.27 8.73 9.03 8.83 4.70 4.53 3.51 2.37 4.91 1999 2.65 3.89 2.57 3.69 2.80 5.90 5.79 6.81 5.37 4.35 3.05 3.31 4.18 2000 2.96 2.73 2.71 5.94 4.76 7.51 10.08 8.77 5.10 3.21 2.73 2.29 4.90 2001 2.18 3.41 4.44 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2002 ****** ****** 3.29 1.14 1.41 3.59 4.96 2.74 4.24 2.14 1.41 1.46 ****** 2003 2.70 1.94 1.54 3.30 6.39 5.75 6.72 7.31 5.16 4.68 3.43 ****** ****** MEAN 2.33 2.36 2.41 3.76 4.61 6.21 7.20 6.75 5.50 4.21 3.05 2.68 4.25 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 77 81 *** *** *** *** *** *** *** 81 81 78 *** 1979 82 *** 82 85 77 83 81 78 78 81 *** 76 *** 1980 77 78 84 81 77 75 72 81 83 78 81 77 79 1981 75 76 81 81 78 76 80 81 78 81 81 76 79 1982 81 78 82 81 85 79 *** *** *** *** 85 81 *** 1983 79 77 *** 75 79 82 77 81 83 81 83 82 *** 1984 84 83 89 83 78 79 77 83 81 78 83 82 82 1985 84 82 81 78 74 76 79 73 80 81 84 82 80 1986 77 84 81 81 80 73 74 71 73 83 85 79 78 1987 79 83 87 82 81 80 78 83 80 83 81 77 81 1988 82 82 83 80 80 73 79 83 84 86 81 82 81 1989 77 76 82 79 77 74 77 81 78 83 78 84 79 1990 84 76 77 78 78 75 77 79 82 78 80 80 79 1991 85 85 88 80 78 85 80 79 81 81 84 79 82 1992 *** 80 81 85 87 83 89 85 85 80 79 82 *** 1993 76 86 78 79 83 89 84 81 87 83 88 *** *** 1994 84 83 86 *** 87 87 84 86 75 89 90 81 *** 1995 87 92 84 81 86 80 82 84 83 83 79 82 84 1996 86 86 89 86 88 86 82 83 84 83 84 89 86 1997 90 91 90 88 92 89 87 83 92 83 83 82 88 1998 86 78 81 79 80 76 77 78 85 82 84 86 81 1999 81 76 82 82 88 81 84 84 83 84 83 79 82 2000 77 78 82 76 82 76 74 77 84 86 83 84 80 2001 82 77 78 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 81 93 94 89 86 92 88 93 92 87 *** 2003 81 87 87 82 74 80 80 80 84 83 80 *** *** MEAN 81 81 83 82 82 80 80 81 82 83 83 81 82 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 88 92 *** *** *** *** *** *** *** 90 91 88 *** 1979 92 *** 92 93 87 91 89 87 88 89 *** 86 *** 1980 87 88 91 91 90 84 83 89 91 88 90 87 88 1981 87 87 90 89 87 85 88 88 87 91 93 91 89 1982 91 92 91 92 92 86 *** *** *** *** 94 93 *** 1983 92 91 *** 86 86 88 83 89 91 91 92 93 *** 1984 94 92 95 92 87 87 85 89 88 90 91 90 90 1985 92 91 92 89 84 83 85 83 88 89 91 91 88 1986 89 91 91 90 89 81 82 81 83 91 91 88 87 1987 89 91 93 90 89 86 86 89 91 92 90 89 90 1988 90 91 92 90 90 82 88 90 92 91 90 91 90 1989 88 88 92 89 87 82 84 88 86 91 88 92 88 1990 91 85 89 89 87 82 86 87 89 89 91 91 88 1991 92 93 94 89 88 91 87 85 89 90 92 89 90 1992 *** 91 90 93 95 91 94 91 91 92 90 91 *** 1993 87 93 90 90 91 93 89 89 92 91 94 *** *** 1994 92 91 92 *** 94 92 89 91 84 94 95 90 *** 1995 93 95 92 90 92 88 90 91 91 90 90 91 91 1996 93 93 94 93 94 92 89 90 90 91 92 95 92 1997 94 95 94 94 95 94 93 90 95 90 92 90 93 1998 94 89 90 88 89 85 87 88 92 90 93 93 90 1999 92 87 91 91 94 88 90 89 91 91 92 90 91 2000 87 90 92 88 90 87 82 85 91 93 91 92 89 2001 92 89 88 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 89 96 96 94 92 95 94 96 96 93 *** 2003 90 93 93 91 83 87 86 89 91 92 91 *** *** MEAN 91 91 92 91 90 87 87 88 90 91 92 91 90 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1978 62 68 *** *** *** *** *** *** *** 70 67 66 *** 1979 69 *** 69 76 66 73 73 67 69 72 *** 65 *** 1980 67 67 75 71 63 63 61 72 73 66 68 65 68 1981 60 61 70 72 67 66 71 72 67 66 62 50 65 1982 67 61 70 68 76 71 *** *** *** *** 72 62 *** 1983 61 59 *** 60 69 75 70 72 75 67 69 65 *** 1984 69 72 81 71 68 68 68 74 70 63 73 72 71 1985 73 68 69 65 64 67 71 60 71 70 75 71 69 1986 61 74 70 69 69 64 64 61 63 74 78 68 68 1987 67 75 81 72 70 71 69 77 69 73 71 66 72 1988 71 71 72 71 71 66 71 74 76 78 69 70 72 1989 63 58 71 68 65 66 70 72 70 72 63 75 68 1990 75 63 64 66 67 66 68 70 72 66 66 65 67 1991 75 74 81 69 68 78 72 70 71 69 73 66 72 1992 *** 66 70 75 77 74 81 77 77 68 65 70 *** 1993 64 77 65 68 73 85 76 72 80 72 79 *** *** 1994 73 74 78 *** 80 82 77 79 65 82 83 68 *** 1995 80 87 74 72 78 72 72 76 74 75 67 72 75 1996 79 78 83 79 81 78 74 75 76 71 75 82 78 1997 85 86 86 82 88 84 80 76 88 74 73 71 81 1998 77 65 69 70 69 67 65 66 76 72 72 77 70 1999 65 62 71 71 82 74 74 76 74 75 70 64 72 2000 66 65 70 62 73 65 65 68 74 76 72 72 69 2001 70 64 65 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 71 90 91 83 80 88 80 88 87 78 *** 2003 72 79 78 74 64 72 72 69 74 71 66 *** *** MEAN 70 70 73 71 72 72 71 72 73 72 71 69 71 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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 1978 1 1 *** *** *** *** *** *** *** 2 7 3 *** 1979 1 *** 2 3 2 1 0 0 3 3 *** 4 *** 1980 3 5 3 3 0 0 2 4 1 5 5 3 34 1981 2 3 2 2 3 1 2 0 2 5 4 3 29 1982 7 2 5 0 2 2 *** *** *** *** 10 2 *** 1983 7 1 *** 1 3 6 3 3 5 5 5 5 *** 1984 2 4 3 1 1 1 1 5 1 6 8 5 38 1985 6 6 2 2 1 0 5 2 3 6 7 7 47 1986 3 2 4 2 0 1 1 2 6 6 7 4 38 1987 1 4 4 6 1 1 3 7 7 12 5 7 58 1988 4 4 1 0 3 5 4 7 2 2 5 5 42 1989 6 4 5 0 1 1 2 4 5 7 4 4 43 1990 6 4 4 3 3 1 1 0 3 6 2 6 39 1991 3 6 4 1 4 0 1 1 4 1 5 3 33 1992 *** 6 6 7 6 4 4 2 6 4 4 4 *** 1993 5 6 6 1 2 6 3 2 10 5 9 *** *** 1994 2 7 2 *** 4 6 0 4 5 8 6 5 *** 1995 2 4 2 4 0 3 2 1 6 7 2 6 39 1996 4 7 4 3 1 6 1 1 6 7 3 5 48 1997 6 5 7 2 1 5 4 0 10 4 6 6 56 1998 5 4 2 4 0 1 1 3 5 4 5 2 36 1999 4 1 2 4 6 0 4 3 5 4 8 2 43 2000 3 4 4 0 4 3 0 4 3 10 5 7 47 2001 3 3 5 *** *** *** *** *** *** *** *** *** *** 2002 *** *** 4 6 5 0 2 2 1 3 7 8 *** 2003 4 6 10 4 2 2 0 3 8 4 3 *** *** MEAN 4 4 4 3 2 2 2 3 5 5 6 5 45 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. HIGHEST AND LOWEST LIMITS FOR 26 YEARS DURING 1978-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 15.8 16.4 21.8 23.0 24.8 28.0 28.4 28.2 26.0 27.6 19.2 15.8 1 YEAR - DAY 1995- 3 1998- 7 2002-28 1982-24 1987-25 1995-30 1991- 5 1989- 1 1989- 3 2002-19 1990-10 1997- 9 LOW. DRY 03 -6.2 -6.8 -2.0 1.0 7.8 13.2 17.8 17.8 12.5 7.0 0.2 -6.0 2 YEAR - DAY 1978-16 1993-18 1992-11 1981- 3 1992- 4 2003- 6 1992-11 1985-30 1979-25 1987-29 1982-16 1982-12 HIG. WET 03 14.4 14.8 19.6 18.0 21.6 24.6 28.0 26.0 24.6 27.0 17.4 15.0 3 YEAR - DAY 1997- 6 1999-19 2002-28 1986-16 1993-27 1995-30 1991- 5 2000- 4 2002- 8 2002-19 1990-10 1996-25 LOW. WET 03 -6.7 -7.0 -3.0 0.5 1.8 11.5 16.4 14.6 11.0 6.8 -0.2 -6.0 4 YEAR - DAY 1978-16 1993-18 1992-11 1981- 3 1993- 1 1980-12 1994- 1 1985-30 1981-25 1987-29 1982-16 1982-12 HIG. DRY 09 25.5 26.4 32.0 34.2 35.2 37.4 36.4 35.0 35.0 33.4 31.2 28.2 5 YEAR - DAY 1979- 3 1985-15 2001-29 1991-26 1987-23 1995-29 1991- 1 2000- 1 1979-17 1989- 2 1995- 8 1990- 5 LOW. DRY 09 1.0 0.2 1.4 4.5 9.4 16.4 21.2 18.2 15.4 9.8 5.4 0.8 6 YEAR - DAY 1983-26 1984- 5 1982-25 1981- 1 1992- 4 1994- 5 1992-12 1992-29 1992-29 1984-20 1992-26 1994- 6 HIG. WET 09 19.0 17.6 23.8 28.0 30.4 30.8 32.8 31.0 30.6 31.2 26.4 20.6 7 YEAR - DAY 1995-12 2003- 4 2002-26 1997-24 1996-15 1991-30 1991- 5 2002- 9 2002- 8 2002- 8 2002-12 1996-25 LOW. WET 09 -0.2 0.0 1.2 3.7 9.2 13.8 13.4 16.0 15.0 9.0 4.8 0.6 8 YEAR - DAY 1983-26 1993-17 1982-25 1981- 1 1992- 4 1984-26 1995- 5 1994-13 1992-29 1984-20 1992-26 1994- 6 HIG. DRY 15 18.2 21.4 22.4 27.4 30.0 34.0 33.0 32.0 30.4 26.4 21.6 22.4 9 YEAR - DAY 1995-12 1998- 7 2001-24 2000- 7 1980-22 1995-29 1980-26 2000- 2 1996- 7 1997-13 1995- 4 1990- 2 LOW. DRY 15 -1.6 -4.0 1.2 4.5 8.4 14.8 16.8 18.0 14.0 7.6 3.8 -1.8 10 YEAR - DAY 1982-22 1993-17 1992-10 1981- 1 1992- 4 1992- 6 1992-12 1987-28 1979-20 1987-26 1988-16 1983-24 HIG. WET 15 17.0 14.8 19.2 24.4 27.6 28.2 30.0 29.6 29.0 24.6 20.8 17.6 11 YEAR - DAY 1995-12 1996- 9 2002-25 1997-23 2002-28 1991-29 1991- 4 1999-23 2002- 8 2002- 2 1995- 4 1990- 2 LOW. WET 15 -4.0 -4.4 1.0 2.5 7.0 11.0 16.2 17.4 13.0 7.0 2.4 -2.4 12 YEAR - DAY 1983-26 1993-17 1992-10 1981- 1 1992- 8 1984- 8 1992-12 1987-28 1979-20 1987-26 1988-16 1983-24 HIG. MIN. 11.5 14.0 12.5 21.0 21.5 26.5 25.0 27.5 25.0 21.0 17.0 13.5 13 YEAR - DAY 1981-19 1999-19 1981-21 1982-24 1981-15 1988-16 1980-30 2000- 4 1995- 6 2002- 2 1995-10 1996-25 LOW. MIN. -8.0 -8.0 -6.5 0.0 4.0 11.0 14.0 15.0 11.0 5.0 -3.0 -8.5 14 YEAR - DAY 1983-27 1980- 3 1979- 2 1981- 3 2003- 2 2003-13 1994- 1 1985-30 1981-25 1984-21 1982-16 1982-11 HIG. MAX. 26.5 27.0 33.5 35.0 35.5 40.0 37.5 37.5 36.0 33.6 31.5 28.5 15 YEAR - DAY 2003- 7 1987-25 2001-29 1991-26 1987-23 1995-29 1991- 1 2003-12 1979-17 2002- 2 1995- 8 1990- 5 LOW. MAX. 2.0 2.0 3.5 6.0 11.0 18.5 22.0 21.0 15.5 11.5 5.5 3.0 16 YEAR - DAY 1983-26 1998-15 1985-10 1981- 1 1992- 2 1984-16 1999-14 1987-28 1992-29 1987-26 1992-26 1994- 6 HIG. PPTN 51.0 51.0 41.0 44.0 65.0 64.2 54.0 64.0 144.0 210.0 97.8 76.0 17 YEAR - DAY 1986-20 1982- 5 1987-20 1981- 1 1992-11 1997- 3 1992- 8 1987-15 1989-19 1998- 8 1992-26 1983-14 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 26 YEARS DURING 1978-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 23.0 21.5 20.2 20.1 15.3 13.4 12.0 14.0 15.5 17.6 21.2 19.6 18 YEAR - DAY 1978- 2 1978-16 1992-29 1990-28 1980- 3 1995-29 1980-13 1979-28 1979-17 1992-24 1995- 8 1982-17 DRY 15 - DRY 09 19.0 15.2 18.0 14.8 15.0 10.6 10.2 8.2 11.8 12.8 16.2 18.4 19 YEAR - DAY 1979- 4 1987-25 2001-29 1987-13 1992-10 1987- 2 1992- 8 1996-25 2002-27 1991-25 1988-16 1981-16 DRY 15 - DRY 03 16.0 12.6 15.8 13.8 10.0 10.6 9.2 10.0 10.0 9.2 11.3 15.4 20 YEAR - DAY 1982- 3 1992- 1 2001-27 1980-20 1991-16 1984-17 1986- 8 1979-28 1979-25 1997-16 1978- 3 1990- 2 WET 09 - WET 03 15.6 14.7 13.4 15.2 14.0 11.6 10.0 10.2 13.0 14.2 15.0 16.6 21 YEAR - DAY 2000-25 1981-13 1990-23 1997-24 1993- 1 2000-14 1991- 4 1995-12 2002-28 2002-21 1981-28 1995-21 WET 15 - WET 09 10.6 8.2 11.0 11.2 11.6 10.2 8.6 8.2 6.6 10.6 10.8 12.0 22 YEAR - DAY 2003- 9 1983-19 1990-23 1988-15 1992- 8 1984- 8 1995- 5 1994-13 1997-16 1998-15 1997- 4 1995-21 WET 15 - WET 03 15.8 11.2 12.0 14.2 15.0 9.2 9.4 9.0 9.6 9.8 11.2 14.0 23 YEAR - DAY 1982- 3 1982-10 2002-25 1997-23 1993- 1 1980-12 2000-31 2000- 2 1997- 2 1998-17 1978- 3 1980-16 DAY BY DAY DRY 03 13.2 11.6 11.6 11.2 9.0 7.8 5.6 6.0 7.0 9.4 11.8 11.2 24 YEAR - DAY 1981-20 1993-19 2002-28 1986-17 1980-16 2003- 6 1995- 1 1986-23 1986-30 2002-20 1995-20 1982- 5 DAY BY DAY WET 03 11.6 10.8 9.6 7.4 10.8 7.0 5.4 5.6 6.8 9.6 10.4 10.8 25 YEAR - DAY 1982-14 1993-19 2002-28 1987-25 1980-15 2003- 6 1991- 5 1995-13 1981-18 2002-20 2002-24 1982- 5 DAY BY DAY DRY 09 14.6 17.2 21.6 18.2 12.8 13.2 7.4 10.6 13.2 16.6 13.6 13.4 26 YEAR - DAY 1993-30 1987-26 2001-30 1991-27 1989-11 1995-22 1991-14 1992-29 1990-15 2002-22 1999-21 1989-12 DAY BY DAY WET 09 9.6 9.4 13.4 12.0 10.5 11.0 11.4 12.0 8.0 15.6 13.4 7.6 27 YEAR - DAY 1995-13 1996- 2 2001-25 1986-16 1980-18 1984-27 1995- 5 1994-14 1996-19 2002-22 1999-21 1997-17 DAY BY DAY DRY 15 9.8 13.8 14.4 16.2 10.8 11.6 9.0 5.4 8.0 9.6 10.3 10.2 28 YEAR - DAY 1986-21 1998- 8 2001-25 1989- 4 1981-16 1995-22 1991- 8 2000-16 1994-18 2002-22 1978- 5 1990- 2 DAY BY DAY WET 15 9.0 9.2 11.0 9.6 7.6 10.2 6.6 4.2 6.8 9.0 10.2 8.0 29 YEAR - DAY 1982- 3 1982- 5 2001-25 1997-23 1996-15 1984- 9 1991- 8 1987-15 1995-26 2002-22 1978- 5 1999- 7 DAY BY DAY MIN. 13.5 11.0 9.5 10.0 7.5 8.6 5.0 8.5 7.5 10.4 11.0 10.5 30 YEAR - DAY 1981-20 1981-12 1999-21 1982-24 1997- 6 2003-14 1980-31 1995-13 1995- 7 2002-18 1982- 7 1982- 5 DAY BY DAY MAX. 14.5 17.5 19.5 21.0 15.4 13.0 7.0 8.0 12.7 12.0 13.5 13.0 31 YEAR - DAY 1993-30 2001-22 2001-30 2003-27 2000- 4 1987- 3 1990-11 2003-13 1990-15 1992-14 1999-26 1989-12 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** 10.2 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** 2.5 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.7 15.1 ***** ***** ***** ***** ***** ***** ***** 24.3 17.1 17.5 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** 15.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.29 4.53 ***** ***** ***** ***** ***** ***** ***** 10.26 5.49 5.56 ***** MEAN OF MIXING RATIO AT 09 GMT. 5.16 5.75 ***** ***** ***** ***** ***** ***** ***** 11.68 7.05 6.80 ***** MEAN OF MIXING RATIO AT 15 GMT. 5.50 5.74 ***** ***** ***** ***** ***** ***** ***** 11.53 6.72 6.86 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** -3.5 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 25.0 25.0 ***** ***** ***** ***** ***** ***** ***** 33.5 22.5 23.0 ****** DAY 2 17 ** ** ** ** ** ** ** 23 8 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.0 7.0 ***** ***** ***** ***** ***** ***** ***** 16.0 90.0 35.0 ****** DAY 10 5 ** ** ** ** ** ** ** 20 1 20 MONTHLY TOTAL PRECIPITATION IN MM. 20.0 14.0 ***** ***** ***** ***** ***** ***** ***** 28.0 269.0 89.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 8.1 ***** ***** 91.9 NO. OF DAYS WITH PRECIPITATION. 4 4 *** *** *** *** *** *** *** 5 12 5 *** NO. OF DAYS PRECIPITATION EQUAL 4 4 *** *** *** *** *** *** *** 5 12 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 *** *** *** *** *** *** *** 1 6 3 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 90 *** *** *** *** *** *** *** 87 87 84 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 71 *** *** *** *** *** *** *** 70 70 66 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 82 *** *** *** *** *** *** *** 86 86 85 *** 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 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** *** *** *** *** *** *** 1 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** *** *** *** *** *** *** 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** *** *** *** *** *** *** 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** 6 *** DATE OF START AND END FREEZING START = 4 DEC. END = 19 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 6.6 ***** 8.3 13.7 18.5 20.3 24.4 25.1 23.2 19.7 ***** 10.8 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -0.5 ***** 1.4 7.8 13.1 15.6 20.2 19.9 17.8 14.8 ***** 2.8 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 14.1 ***** 15.0 19.7 23.7 25.0 28.4 30.4 28.9 24.4 ***** 16.9 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.6 ***** 13.6 11.9 10.6 9.4 8.2 10.5 11.1 9.6 ***** 14.1 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.64 ***** 5.35 7.94 9.75 12.35 15.67 14.16 12.58 10.59 ***** 5.08 ***** MEAN OF MIXING RATIO AT 09 GMT. 5.68 ***** 6.77 9.04 10.76 13.68 17.01 17.86 16.47 12.41 ***** 6.54 ***** MEAN OF MIXING RATIO AT 15 GMT. 5.20 ***** 6.47 8.88 10.23 12.91 16.57 17.82 15.03 11.95 ***** 5.70 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.0 ***** -6.5 3.0 6.5 12.0 17.5 16.5 11.5 10.0 ***** -5.5 ****** DAY 14 ** 2 2 10 13 12 28 28 19 ** 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 19.0 ***** 23.0 25.5 28.0 30.0 32.0 35.0 36.0 28.0 ***** 22.0 ****** DAY 1 ** 17 4 14 22 2 25 17 1 ** 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 ***** 25.0 10.0 8.0 5.0 2.0 1.0 21.0 55.0 ***** 60.0 ****** DAY 5 ** 27 28 8 11 9 2 20 8 ** 8 MONTHLY TOTAL PRECIPITATION IN MM. 12.0 ***** 53.0 38.0 14.0 6.0 2.0 2.0 38.0 107.0 ***** 133.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 16.0 14.3 10.4 59.3 NO. OF DAYS WITH PRECIPITATION. 4 *** 8 11 5 11 3 3 6 6 *** 7 *** NO. OF DAYS PRECIPITATION EQUAL 3 *** 7 10 3 2 1 2 5 5 *** 7 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 *** 2 1 0 0 0 0 1 3 *** 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 *** 90 89 82 90 88 85 87 87 *** 85 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 *** 70 77 67 75 74 68 70 73 *** 67 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 85 *** 85 88 84 85 82 82 78 82 *** 75 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 *** 3 0 0 0 0 0 0 0 *** 1 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 13 9 9 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 2 7 17 12 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. 9 *** 9 0 0 0 0 0 0 0 *** 10 *** DATE OF START AND END FREEZING START = 18 DEC. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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.***** ***** 7.7 14.0 19.2 22.4 26.2 24.3 21.5 17.1 15.4 11.1 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -1.1 -0.8 3.2 8.5 13.3 17.6 21.2 20.6 17.9 12.7 9.5 5.3 10.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** 11.7 19.5 25.1 27.3 31.0 28.0 25.3 21.8 21.0 16.9 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** 8.5 11.0 11.8 9.7 9.8 7.4 7.4 9.1 11.5 11.6 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.76 3.91 5.29 7.56 9.64 12.15 15.03 15.38 12.65 9.01 7.44 5.50 8.94 MEAN OF MIXING RATIO AT 09 GMT. 5.29 4.71 6.08 8.55 11.66 13.81 16.36 16.36 14.23 10.00 9.07 6.96 10.26 MEAN OF MIXING RATIO AT 15 GMT. 4.48 4.64 5.92 8.13 10.48 13.56 16.47 16.51 13.81 9.61 8.75 6.78 9.93 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.0 -8.0 -2.0 4.0 9.0 15.0 18.0 17.5 14.0 7.0 3.0 -2.0 -8.0 DAY 27 3 5 20 17 6 13 30 22 22 26 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** 23.0 28.0 35.0 32.0 33.0 33.0 31.0 26.0 28.0 25.0 ****** DAY ** ** 23 22 22 3 12 17 3 1 13 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.0 15.0 25.0 9.0 1.0 3.0 25.0 18.0 5.0 70.0 45.0 35.0 70.0 DAY 23 12 4 17 1 18 17 11 15 20 18 26 MONTHLY TOTAL PRECIPITATION IN MM. 56.0 58.0 69.0 24.0 1.0 6.0 30.0 54.0 15.0 116.0 125.0 48.0 602.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 30.4 5.1 16.4 48.0 NO. OF DAYS WITH PRECIPITATION. 9 10 10 5 1 2 2 6 6 8 5 4 68 NO. OF DAYS PRECIPITATION EQUAL 9 10 10 5 1 2 2 6 6 8 5 4 68 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 2 0 0 0 1 3 0 2 5 1 19 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 85 90 90 85 81 82 88 88 86 88 86 86 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 69 76 72 68 65 62 72 75 66 69 67 69 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 81 85 80 79 80 73 84 87 81 85 80 81 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 8 8 0 0 0 0 0 0 0 0 0 0 16 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 18 17 0 0 0 0 37 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** 0 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** 0 0 6 4 21 7 1 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. 20 13 3 0 0 0 0 0 0 0 0 3 39 DATE OF START AND END FREEZING START = 16 DEC. END = 8 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 8.6 ***** 11.5 13.2 18.6 23.0 25.3 25.9 23.0 18.3 12.7 11.2 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 1.7 3.5 7.3 9.7 15.2 19.6 21.7 22.3 17.7 13.1 6.0 2.5 11.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 15.4 ***** 15.7 16.6 22.1 26.2 28.8 29.7 28.1 23.6 19.7 19.8 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.7 ***** 8.4 6.9 6.9 6.6 7.1 7.4 10.4 10.5 13.7 17.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.20 4.83 6.42 7.58 10.19 12.89 15.71 16.33 12.96 9.57 6.38 4.80 9.32 MEAN OF MIXING RATIO AT 09 GMT. 5.93 5.68 6.92 8.04 10.49 13.75 17.18 17.79 15.07 11.44 8.47 6.65 10.62 MEAN OF MIXING RATIO AT 15 GMT. 4.83 5.13 6.71 7.47 10.76 13.27 16.64 17.83 15.26 11.46 7.62 6.32 10.28 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.5 -2.2 2.0 0.0 10.5 15.0 18.0 19.0 11.0 7.0 0.0 -3.0 -3.5 DAY 8 13 4 3 17 6 23 21 25 31 27 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 24.0 ***** 25.0 28.0 33.0 30.0 31.5 32.0 32.5 29.5 28.5 27.0 ****** DAY 17 ** 6 20 14 15 31 6 14 15 2 16 24 HOUR MAXIMUM PRECIPITATION IN MM. 37.0 37.0 7.0 44.0 42.0 7.0 20.0 4.0 107.0 34.0 45.0 12.0 107.0 DAY 12 11 14 1 16 6 6 9 22 16 6 18 MONTHLY TOTAL PRECIPITATION IN MM. 48.0 56.0 24.0 61.0 71.0 13.0 38.0 12.0 115.0 107.0 79.0 27.0 651.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 19.7 22.3 25.3 32.7 NO. OF DAYS WITH PRECIPITATION. 4 10 10 10 14 7 11 10 4 11 5 6 102 NO. OF DAYS PRECIPITATION EQUAL 4 7 8 7 6 5 9 4 3 8 4 5 70 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 0 1 2 0 1 0 1 3 3 1 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 86 88 88 84 80 85 85 81 86 90 89 86 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 62 71 73 69 67 71 72 67 67 63 50 66 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 80 85 82 82 81 83 85 84 90 88 87 84 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 12 23 22 1 0 0 0 59 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 2 1 12 19 9 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. 14 9 0 1 0 0 0 0 0 0 1 4 29 DATE OF START AND END FREEZING START = 27 NOV. END = 3 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 6.2 4.8 7.6 16.0 18.5 ***** ***** ***** ***** ***** 8.7 4.3 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 0.2 -1.0 2.9 11.1 15.9 ***** ***** ***** ***** ***** 3.6 -3.7 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.0 10.8 12.1 20.9 22.1 26.0 ***** ***** ***** ***** 13.9 12.3 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.8 11.8 9.2 9.8 6.2 ***** ***** ***** ***** ***** 10.3 16.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.27 3.65 4.89 8.41 11.25 13.27 ***** ***** ***** ***** 5.84 3.45 ***** MEAN OF MIXING RATIO AT 09 GMT. 5.24 4.45 5.68 9.11 11.74 14.27 ***** ***** ***** ***** 6.76 5.38 ***** MEAN OF MIXING RATIO AT 15 GMT. 5.30 4.65 5.74 9.28 11.52 13.67 ***** ***** ***** ***** 6.58 4.46 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -7.0 -4.5 4.0 12.5 ***** ***** ***** ***** ***** -3.0 -8.5 ****** DAY 25 9 9 1 3 ** ** ** ** ** 16 11 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.5 20.0 19.0 32.0 29.0 30.5 ***** ***** ***** ***** 23.5 19.0 ****** DAY 8 3 30 25 15 16 ** ** ** ** 6 31 24 HOUR MAXIMUM PRECIPITATION IN MM. 30.0 51.0 13.0 2.0 10.0 8.0 ***** ***** ***** ***** 21.0 8.0 ****** DAY 14 5 3 8 27 27 ** ** ** ** 26 6 MONTHLY TOTAL PRECIPITATION IN MM. 93.0 80.0 46.0 5.0 28.1 18.0 ***** ***** ***** ***** 147.5 14.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.7 11.8 ***** 37.4 NO. OF DAYS WITH PRECIPITATION. 11 10 11 7 17 6 *** *** *** *** 15 4 *** NO. OF DAYS PRECIPITATION EQUAL 9 5 6 4 5 4 *** *** *** *** 15 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 2 0 1 0 *** *** *** *** 6 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 88 89 90 90 83 *** *** *** *** 92 90 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 66 62 71 69 76 73 *** *** *** *** 73 64 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 86 85 85 84 88 82 *** *** *** *** 91 88 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 6 9 2 0 0 *** *** *** *** *** 0 19 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 1 *** *** *** *** *** 0 0 *** 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 0 0 2 0 1 *** *** *** *** 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. 15 15 5 0 0 *** *** *** *** *** 5 24 *** DATE OF START AND END FREEZING START = 16 NOV. END = 27 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 3.8 6.4 ***** 14.1 20.1 22.1 25.5 24.7 21.6 17.0 14.1 8.2 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -3.6 -0.6 ***** 7.4 15.5 18.4 21.3 21.4 18.4 11.9 8.7 2.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.4 13.4 ***** 20.8 24.7 25.8 29.8 28.1 24.8 22.2 19.3 14.2 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.0 14.0 ***** 13.3 9.2 7.4 8.5 6.7 6.4 10.3 10.6 12.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.60 4.20 ***** 7.54 11.56 13.78 16.05 15.55 13.14 8.91 7.43 4.92 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.69 5.25 ***** 8.33 12.45 15.20 17.62 16.44 13.71 10.42 9.02 6.29 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.47 5.30 ***** 8.47 12.46 14.86 17.68 16.67 13.87 10.72 8.89 5.93 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -4.0 ***** 3.5 10.5 15.0 16.5 16.0 13.0 7.5 2.5 -2.5 ****** DAY 27 2 ** 13 1 1 1 28 16 22 27 16 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.5 22.5 ***** 32.0 31.5 29.5 33.0 33.0 29.0 27.5 24.5 24.0 ****** DAY 1 19 ** 18 4 18 15 15 25 11 22 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 31.0 30.0 ***** 7.0 9.0 26.5 18.0 19.5 36.0 123.5 26.0 76.0 ****** DAY 25 22 ** 25 29 27 29 26 14 12 26 14 MONTHLY TOTAL PRECIPITATION IN MM. 118.0 32.5 ***** 15.0 34.5 80.0 34.0 47.0 95.5 213.0 77.5 209.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 15.7 13.5 18.5 52.2 NO. OF DAYS WITH PRECIPITATION. 11 3 *** 6 11 14 8 12 12 6 8 6 *** NO. OF DAYS PRECIPITATION EQUAL 10 2 *** 5 7 10 4 7 8 6 6 6 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 1 *** 0 0 2 1 2 4 3 3 5 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 87 *** 85 83 87 82 87 89 88 89 91 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 60 *** 60 69 76 70 72 75 67 70 64 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 85 83 *** 81 83 84 80 85 87 88 89 88 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 16 2 *** 0 0 0 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 *** 0 0 1 19 25 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 *** 1 1 0 12 8 0 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. 26 16 *** 0 0 0 0 0 0 0 0 13 *** DATE OF START AND END FREEZING START = 16 DEC. END = 28 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 6.5 4.1 8.4 14.3 16.9 21.2 25.0 24.2 22.1 17.6 14.1 6.1 15.0 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.7 0.3 5.7 9.2 12.0 16.7 20.2 20.6 17.5 12.1 9.6 2.2 10.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.3 7.8 11.1 19.4 21.8 25.8 29.9 27.7 26.8 23.1 18.4 10.0 19.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.6 7.5 5.4 10.2 9.8 9.1 9.7 7.1 9.3 11.0 8.8 7.8 8.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.19 3.99 5.98 8.09 9.66 12.69 15.30 15.18 12.54 8.72 7.61 4.36 9.03 MEAN OF MIXING RATIO AT 09 GMT. 5.93 4.42 6.47 9.21 10.25 13.48 17.25 16.25 14.63 10.51 9.18 5.23 10.23 MEAN OF MIXING RATIO AT 15 GMT. 5.53 4.59 6.44 8.80 10.37 13.51 17.85 16.06 14.62 11.00 8.65 5.10 10.21 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.5 -4.0 -1.5 2.5 7.0 12.5 16.5 18.0 12.5 5.0 4.5 -1.5 -4.0 DAY 1 7 2 5 2 1 5 13 28 21 23 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 11.0 18.0 29.5 33.0 33.0 33.5 30.0 30.5 28.5 24.0 17.5 33.5 DAY 8 3 17 21 26 10 22 6 23 5 25 14 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.5 10.5 15.5 5.5 44.5 43.0 5.0 26.0 7.0 40.0 21.0 16.0 44.5 DAY 10 17 16 26 1 15 26 3 15 20 29 15 MONTHLY TOTAL PRECIPITATION IN MM. 34.0 40.5 41.0 11.0 51.0 48.0 6.0 85.0 10.0 139.0 104.0 66.0 635.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 18.2 17.3 15.9 48.6 NO. OF DAYS WITH PRECIPITATION. 5 6 11 7 5 4 3 10 2 6 10 12 81 NO. OF DAYS PRECIPITATION EQUAL 4 6 10 5 5 3 1 9 2 6 10 11 72 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 1 0 1 1 0 4 0 5 6 3 24 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 91 93 91 83 84 79 87 86 82 89 88 87 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 71 73 82 72 69 70 69 75 70 64 74 73 72 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 91 86 91 85 82 81 83 87 85 88 87 86 86 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 9 15 1 0 0 0 25 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 2 16 2 1 0 0 0 22 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 15 17 3 0 0 0 0 0 0 0 0 10 45 DATE OF START AND END FREEZING START = 9 DEC. END = 17 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 6.4 7.0 6.6 14.7 19.7 23.5 24.2 24.9 23.0 17.1 13.8 8.8 15.8 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.7 1.9 2.5 9.5 14.4 18.8 21.0 19.7 18.4 12.4 9.3 4.2 11.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.1 12.0 10.6 19.8 25.1 28.2 27.4 30.2 27.5 21.9 18.2 13.4 20.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.4 10.1 8.1 10.3 10.7 9.5 6.4 10.5 9.1 9.5 8.9 9.2 9.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.48 4.42 4.65 7.79 11.15 14.21 14.70 13.97 13.16 9.24 7.59 5.24 9.22 MEAN OF MIXING RATIO AT 09 GMT. 5.73 5.21 5.46 8.43 12.13 15.28 15.39 15.62 15.31 11.06 9.45 6.52 10.47 MEAN OF MIXING RATIO AT 15 GMT. 5.33 5.36 5.59 8.70 11.93 15.25 15.87 16.14 15.14 10.75 8.62 6.23 10.41 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.5 -5.0 -3.0 4.0 9.0 15.0 18.0 15.0 15.0 8.0 4.5 -2.0 -5.0 DAY 18 24 11 2 6 10 24 30 24 24 21 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.0 26.5 26.0 27.5 30.5 31.5 33.0 34.0 31.0 28.0 25.0 19.5 34.0 DAY 5 15 21 12 20 19 13 20 1 18 16 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 22.0 13.5 11.5 9.5 4.5 13.5 20.0 31.0 33.5 25.5 30.0 33.5 DAY 23 6 10 16 3 21 29 26 20 22 19 14 MONTHLY TOTAL PRECIPITATION IN MM. 55.5 87.0 38.0 19.5 13.0 15.0 46.5 43.0 65.5 102.7 100.0 104.5 690.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 26.2 6.9 22.5 44.5 NO. OF DAYS WITH PRECIPITATION. 10 13 13 3 5 7 11 6 6 11 10 15 110 NO. OF DAYS PRECIPITATION EQUAL 8 13 8 2 3 6 6 4 6 9 8 13 86 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 1 1 0 0 2 2 2 4 4 4 24 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 88 88 88 81 81 82 80 84 86 89 88 85 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 74 70 70 65 64 67 71 60 72 72 76 72 69 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 89 87 86 82 77 79 83 79 85 85 88 86 84 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 20 8 4 0 0 0 38 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 3 5 2 20 3 0 0 0 33 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. 11 9 11 0 0 0 0 0 0 0 0 2 33 DATE OF START AND END FREEZING START = 15 DEC. END = 15 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 7.9 7.4 6.8 14.4 18.2 22.5 25.1 25.6 23.9 18.5 12.4 8.2 15.9 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.1 3.8 3.2 9.7 14.0 17.6 20.6 20.5 18.3 14.2 8.9 2.9 11.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.9 11.2 10.5 19.1 22.5 27.3 29.6 30.8 29.5 22.9 15.8 13.5 20.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.8 7.4 7.3 9.4 8.5 9.7 9.0 10.3 11.2 8.7 6.9 10.6 9.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.49 4.99 4.92 8.20 10.36 13.40 15.47 14.36 12.90 10.73 7.55 4.66 9.33 MEAN OF MIXING RATIO AT 09 GMT. 5.92 5.72 5.39 9.09 11.33 13.75 16.19 16.31 15.50 12.44 8.64 6.44 10.56 MEAN OF MIXING RATIO AT 15 GMT. 6.01 5.82 5.33 8.66 11.23 14.31 16.26 17.21 14.95 11.27 8.27 5.85 10.43 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.0 -1.0 -0.5 3.5 10.0 14.0 17.5 16.5 14.5 10.0 1.5 -2.0 -2.0 DAY 25 3 2 2 19 24 22 6 30 16 16 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 23.0 21.5 15.5 32.5 30.0 31.0 32.5 34.5 31.5 31.5 24.0 23.5 34.5 DAY 9 27 26 15 3 5 6 22 2 22 9 27 24 HOUR MAXIMUM PRECIPITATION IN MM. 51.0 9.0 14.0 7.0 4.0 5.0 6.0 10.0 74.0 101.0 17.5 16.0 101.0 DAY 20 5 7 17 28 22 21 7 30 24 5 9 MONTHLY TOTAL PRECIPITATION IN MM. 76.5 27.0 52.5 18.0 15.5 7.0 7.5 17.5 196.5 215.5 86.0 56.0 775.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 20.1 5.2 28.6 46.1 NO. OF DAYS WITH PRECIPITATION. 5 6 9 5 9 4 3 3 7 10 10 9 80 NO. OF DAYS PRECIPITATION EQUAL 5 6 9 3 6 3 2 3 7 10 9 8 71 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 2 0 0 0 0 1 4 6 4 3 22 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 88 89 88 86 78 80 77 77 90 90 83 84 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 76 73 72 70 64 65 61 63 75 78 71 69 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 83 87 82 84 85 77 76 76 78 83 87 83 82 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 14 15 6 0 0 0 39 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 1 5 17 25 20 1 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. 5 1 3 0 0 0 0 0 0 0 0 6 15 DATE OF START AND END FREEZING START = 12 DEC. END = 17 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 9.6 8.2 9.2 11.8 19.1 23.2 24.5 25.2 21.3 14.3 12.8 9.3 15.7 AVERAGE OF MINIMUM TEMPERATURE IN C. 4.1 4.4 6.2 7.5 14.3 18.1 20.4 22.0 17.1 10.5 8.5 4.7 11.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 14.9 11.9 12.1 17.0 23.9 28.3 28.6 28.6 25.5 18.5 17.3 14.5 20.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.8 7.5 5.9 9.5 9.6 10.2 8.2 6.6 8.4 8.0 8.8 9.8 8.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 5.22 5.27 5.91 7.04 11.06 14.11 15.03 16.21 12.46 8.11 6.69 5.21 9.36 MEAN OF MIXING RATIO AT 09 GMT. 6.69 6.21 6.72 8.18 12.90 16.79 16.62 18.04 13.75 9.31 8.33 6.55 10.84 MEAN OF MIXING RATIO AT 15 GMT. 6.01 6.00 6.50 7.42 12.03 15.98 16.30 17.33 13.50 8.95 7.28 5.58 10.24 ABSOLUTE OF MINIMUM TEMPERATURE IN C. 0.5 0.5 1.5 1.0 7.5 13.2 17.5 18.0 12.0 6.0 2.0 0.4 0.4 DAY 13 7 24 2 3 1 4 31 24 29 30 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 26.0 27.0 24.0 28.5 35.5 35.0 34.5 33.5 29.4 28.0 22.0 25.0 35.5 DAY 30 25 6 13 23 2 30 10 16 1 13 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 24.0 12.0 41.0 22.0 10.0 5.0 32.0 64.0 29.0 85.0 17.0 24.0 85.0 DAY 11 6 20 5 30 30 3 15 23 9 26 13 MONTHLY TOTAL PRECIPITATION IN MM. 32.0 52.5 110.5 83.0 18.0 5.5 56.5 195.5 109.0 292.5 68.0 113.2 1136.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 17.2 9.4 31.8 41.7 NO. OF DAYS WITH PRECIPITATION. 8 9 16 12 7 2 5 12 9 13 7 11 111 NO. OF DAYS PRECIPITATION EQUAL 5 9 14 12 7 1 5 11 9 13 7 10 103 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 3 3 1 0 2 5 4 6 4 4 35 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 86 87 91 87 86 83 85 89 90 90 88 86 87 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 77 83 74 72 71 70 77 70 75 74 69 74 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 83 86 87 84 84 84 79 83 81 82 80 77 83 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 10 24 2 0 0 0 41 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 3 14 8 16 0 0 0 0 41 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 0 0 0 0 0 0 0 0 0 0 0 0 0 DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 6.8 7.0 9.5 14.5 18.2 25.1 25.8 24.3 22.4 16.7 13.3 9.8 16.1 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.7 3.0 5.6 11.3 15.4 21.4 23.0 21.2 18.9 13.3 8.4 4.8 12.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.6 11.3 13.8 18.2 21.6 29.1 28.9 27.4 25.8 20.1 18.4 14.8 20.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.9 8.3 8.2 6.9 6.2 7.7 5.9 6.2 6.9 6.8 10.0 10.0 7.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.39 4.50 5.72 7.97 10.30 13.66 16.04 15.31 13.71 9.39 7.26 5.80 9.51 MEAN OF MIXING RATIO AT 09 GMT. 5.59 5.78 6.87 9.28 11.26 16.09 17.07 16.36 15.58 11.29 8.56 7.09 10.90 MEAN OF MIXING RATIO AT 15 GMT. 4.58 5.05 6.04 8.00 10.28 15.07 16.04 16.45 14.98 10.69 8.14 6.78 10.18 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -0.5 -1.5 0.5 6.0 10.5 18.0 19.0 17.5 15.0 7.5 2.0 -0.5 -1.5 DAY 3 7 7 6 2 2 27 26 30 23 17 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.0 23.0 22.0 25.5 27.5 35.0 32.5 31.5 30.0 25.0 30.0 22.5 35.0 DAY 28 29 3 15 8 13 3 12 4 2 8 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 37.0 17.0 7.5 4.0 37.5 39.0 11.0 48.0 17.0 69.0 26.0 20.0 69.0 DAY 19 3 5 1 2 24 18 29 18 22 5 20 MONTHLY TOTAL PRECIPITATION IN MM. 93.3 67.2 29.0 23.0 67.0 80.5 41.0 132.0 32.0 86.5 90.5 54.5 796.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 23.8 21.4 25.7 29.1 NO. OF DAYS WITH PRECIPITATION. 10 12 12 14 7 8 10 10 4 4 8 7 106 NO. OF DAYS PRECIPITATION EQUAL 8 11 10 9 6 6 8 10 4 4 7 7 90 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 0 0 1 3 1 4 2 1 5 1 23 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 88 91 89 89 81 87 88 90 89 87 89 88 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 74 73 73 74 73 67 72 75 76 79 70 71 73 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 84 85 84 78 76 72 78 86 87 88 86 87 83 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 18 22 22 4 0 0 0 66 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 10 4 2 0 1 0 25 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 3 2 0 0 0 0 0 0 0 0 0 1 6 DATE OF START AND END FREEZING START = 29 DEC. END = 19 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. MEAN AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.3 5.3 9.9 14.9 19.3 23.1 25.8 26.2 22.6 19.3 14.3 9.3 16.3 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.4 -0.5 5.1 9.4 14.0 18.2 21.5 22.6 18.3 14.8 9.0 4.8 11.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.1 11.0 14.6 20.4 24.5 28.1 30.2 29.8 27.0 23.9 19.7 13.5 21.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.7 11.5 9.5 11.0 10.5 9.9 8.7 7.2 8.7 9.1 10.7 8.7 9.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.72 3.73 6.01 8.26 10.52 13.66 16.05 16.57 12.93 11.44 7.07 5.79 9.64 MEAN OF MIXING RATIO AT 09 GMT. 4.48 4.32 6.82 9.43 11.80 14.65 18.18 18.20 14.99 12.90 8.46 6.91 10.93 MEAN OF MIXING RATIO AT 15 GMT. 4.42 4.73 6.58 8.87 11.83 14.32 18.08 18.31 14.72 12.31 8.12 6.51 10.73 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.5 -3.5 0.5 4.0 7.0 15.0 19.5 19.5 12.0 9.0 3.0 0.5 -3.5 DAY 31 15 31 1 1 4 22 19 23 25 23 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.0 24.5 27.0 28.0 32.0 39.0 34.5 33.0 33.0 33.5 29.5 24.0 39.0 DAY 1 28 26 17 5 24 30 15 1 2 27 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 32.0 25.0 40.0 4.5 11.0 5.0 7.5 37.0 144.0 53.0 38.0 38.0 144.0 DAY 4 2 16 30 29 5 10 18 19 10 7 7 MONTHLY TOTAL PRECIPITATION IN MM. 111.5 67.5 81.5 8.5 20.0 5.0 16.5 70.0 272.0 221.0 62.0 108.0 1043.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 25.0 3.2 34.4 37.5 NO. OF DAYS WITH PRECIPITATION. 8 5 6 3 7 1 4 9 5 10 6 11 75 NO. OF DAYS PRECIPITATION EQUAL 8 5 6 3 7 1 4 6 5 9 5 10 69 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 3 3 0 1 0 0 2 3 6 1 4 27 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 86 90 85 84 79 79 85 81 89 85 89 85 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 59 73 69 66 66 71 72 71 73 65 76 69 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 82 84 83 84 81 77 83 85 83 86 85 86 83 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 21 26 5 0 0 0 57 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 5 3 21 21 9 2 0 0 61 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 17 15 0 0 0 0 0 0 0 0 0 0 32 DATE OF START AND END FREEZING START = 2 JAN. END = 26 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 5.9 7.9 9.7 14.0 18.2 23.1 25.6 24.4 23.3 18.7 15.2 9.4 16.3 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.2 2.9 4.0 8.6 13.7 17.8 21.3 20.6 18.9 13.3 9.0 4.1 11.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.6 12.8 15.3 19.4 22.7 28.4 29.9 28.2 27.7 24.0 21.4 14.8 21.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.4 9.9 11.3 10.8 9.0 10.6 8.6 7.6 8.8 10.7 12.4 10.7 10.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.11 4.36 5.41 7.55 9.98 13.12 16.02 14.56 14.18 10.02 7.37 5.16 9.32 MEAN OF MIXING RATIO AT 09 GMT. 5.73 5.20 6.25 8.56 10.82 15.09 17.55 15.99 15.96 11.88 9.85 6.51 10.78 MEAN OF MIXING RATIO AT 15 GMT. 4.82 5.40 6.23 8.33 10.78 14.41 17.34 15.98 15.71 11.84 8.79 6.34 10.50 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.0 -1.5 -2.5 3.5 10.5 12.0 17.5 17.5 15.0 6.5 4.5 -1.5 -2.5 DAY 31 8 21 5 27 8 6 2 14 16 14 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.5 25.0 29.0 34.0 28.5 36.0 35.5 33.0 35.5 31.5 28.0 28.5 36.0 DAY 1 17 2 28 29 3 27 22 14 22 9 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 13.5 25.0 17.0 33.0 12.5 6.0 4.0 26.0 106.0 48.0 39.0 106.0 DAY 24 20 16 2 13 21 29 1 15 14 13 26 MONTHLY TOTAL PRECIPITATION IN MM. 58.0 40.5 68.0 39.5 67.0 19.5 16.0 13.0 44.0 220.0 64.5 123.0 773.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 21.5 16.3 9.4 52.7 NO. OF DAYS WITH PRECIPITATION. 10 9 7 5 5 4 4 5 3 9 5 8 74 NO. OF DAYS PRECIPITATION EQUAL 10 8 7 5 4 4 4 5 3 9 4 8 71 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 2 2 3 1 0 0 2 3 2 6 24 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 83 84 87 84 77 80 84 86 83 87 87 84 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 76 63 66 67 68 67 69 70 72 66 67 66 68 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 89 80 82 81 82 81 83 84 86 85 87 86 84 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 16 17 5 0 0 0 40 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 2 0 9 20 6 5 2 0 0 44 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 15 8 4 0 0 0 0 0 0 0 0 6 33 DATE OF START AND END FREEZING START = 20 DEC. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 7.3 6.7 8.2 15.1 18.3 22.9 26.4 25.7 22.4 19.9 13.7 9.1 16.3 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.1 2.0 5.5 10.2 13.1 17.3 20.9 21.2 18.2 14.9 9.0 3.2 11.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.5 11.3 10.9 20.3 23.4 28.4 31.9 30.3 26.5 25.0 18.3 15.0 21.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.4 9.2 5.4 10.1 10.3 11.1 11.0 9.1 8.3 10.1 9.3 11.8 9.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.60 4.57 5.80 8.04 9.84 14.18 16.55 15.36 13.17 10.83 7.52 4.73 9.60 MEAN OF MIXING RATIO AT 09 GMT. 6.45 5.62 6.40 9.20 10.97 18.68 19.87 18.09 14.71 12.82 9.00 6.80 11.55 MEAN OF MIXING RATIO AT 15 GMT. 5.55 5.24 6.05 8.61 10.71 16.37 18.37 17.62 14.22 12.31 8.83 5.73 10.80 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -1.0 -4.0 0.5 4.5 9.0 13.0 16.5 17.5 12.5 11.5 3.5 -1.0 -4.0 DAY 16 14 12 14 25 2 15 29 28 18 23 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.5 23.0 19.5 35.0 30.0 35.0 37.5 36.5 30.5 30.5 23.0 24.5 37.5 DAY 31 18 27 26 9 23 1 1 6 24 4 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 44.0 23.0 12.0 10.0 22.5 1.0 27.0 6.0 33.0 7.0 44.4 32.0 44.4 DAY 5 5 15 13 11 8 14 26 25 29 7 16 MONTHLY TOTAL PRECIPITATION IN MM. 62.0 93.5 40.0 10.5 52.5 1.5 29.0 9.0 76.0 16.1 107.2 56.4 553.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 35.3 11.6 20.6 32.5 NO. OF DAYS WITH PRECIPITATION. 5 10 12 2 6 2 2 3 6 4 7 5 64 NO. OF DAYS PRECIPITATION EQUAL 5 9 10 1 6 1 2 3 6 4 6 5 58 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 5 1 1 2 0 1 0 3 0 2 3 19 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 89 92 86 87 89 84 83 86 88 90 85 87 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 78 75 83 69 68 80 73 71 72 69 73 67 73 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 88 90 88 83 80 86 83 82 84 87 89 83 85 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 2 0 0 0 0 0 0 0 0 0 0 2 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 15 17 6 0 0 0 40 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 1 13 24 17 4 1 0 0 61 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 8 5 0 0 0 0 0 0 0 0 0 7 20 DATE OF START AND END FREEZING START = 18 DEC. END = 16 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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.***** 7.4 ***** ***** 16.8 23.4 24.4 23.9 21.9 17.4 13.4 9.2 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** 1.6 ***** ***** 11.8 18.6 20.5 20.0 17.7 12.2 8.4 5.3 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 12.9 12.2 17.5 21.9 28.1 28.3 27.9 26.0 22.6 18.5 13.1 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 11.3 ***** ***** 10.1 9.5 7.8 7.9 8.3 10.4 10.1 7.8 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 4.34 4.94 7.08 9.73 13.86 16.16 14.20 12.17 9.08 6.82 5.22 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 5.35 5.92 8.26 11.61 15.93 18.58 17.39 15.63 10.96 8.28 6.47 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 5.23 5.89 7.84 9.35 14.90 16.83 16.63 14.83 10.31 8.08 6.18 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -2.0 ***** ***** 6.5 14.0 17.0 17.0 14.5 7.5 1.0 -0.5 ****** DAY ** 13 ** ** 3 8 11 13 1 17 27 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 21.5 23.0 32.5 29.0 33.0 31.5 31.0 29.0 32.0 27.5 21.0 ****** DAY ** 7 28 21 30 17 20 19 6 13 22 15 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** 29.0 35.0 22.5 65.0 9.5 54.0 44.5 108.0 66.2 97.8 17.8 ****** DAY ** 15 23 27 11 4 8 29 26 15 26 18 MONTHLY TOTAL PRECIPITATION IN MM. ***** 113.0 102.0 89.0 133.5 37.5 73.0 70.0 174.0 138.4 193.8 66.4 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 18.1 21.8 26.6 33.5 NO. OF DAYS WITH PRECIPITATION. *** 10 10 12 8 5 4 8 7 11 8 13 *** NO. OF DAYS PRECIPITATION EQUAL *** 10 10 12 8 5 4 8 7 8 7 11 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** 5 3 3 4 0 1 1 4 3 3 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 86 86 89 91 88 91 89 87 84 84 84 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 67 72 77 79 74 84 78 78 69 66 72 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 87 86 88 90 87 91 90 89 87 87 89 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 *** *** 0 0 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 *** *** 0 7 19 9 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 1 0 8 9 5 0 3 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 1 *** DATE OF START AND END FREEZING START = 31 DEC. END = 11 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 6.8 5.5 9.6 14.3 18.7 22.0 24.3 25.5 22.3 16.9 10.3 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 2.1 2.3 4.6 9.3 14.2 17.9 20.6 21.8 19.0 12.5 7.2 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.5 8.7 14.7 19.4 23.2 26.0 28.0 29.2 25.5 21.4 13.5 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.4 6.4 10.1 10.1 9.0 8.1 7.4 7.4 6.5 8.9 6.3 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.90 4.44 5.11 7.10 10.22 13.45 14.69 15.61 13.55 8.45 6.40 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 4.90 5.07 6.13 8.64 12.82 17.18 17.44 17.34 15.85 11.21 7.40 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 4.85 5.07 6.43 8.75 11.77 15.62 16.90 17.63 15.25 10.81 6.94 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.5 -8.0 1.0 4.5 8.0 15.5 17.5 16.5 15.5 9.0 1.0 ***** ****** DAY 16 18 3 1 1 6 14 26 27 7 15 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 24.0 16.5 25.0 29.0 30.5 31.0 33.5 33.0 30.5 28.5 22.0 ***** ****** DAY 28 27 30 19 15 26 24 12 1 1 3 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.4 45.2 8.4 14.6 9.2 26.8 17.4 6.4 66.0 17.4 27.0 ***** ****** DAY 15 16 1 23 9 12 27 23 8 4 1 ** MONTHLY TOTAL PRECIPITATION IN MM. 69.6 108.0 56.2 32.0 25.2 104.0 47.4 18.4 204.2 50.6 151.0 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.0 18.6 31.2 23.3 NO. OF DAYS WITH PRECIPITATION. 13 16 11 10 9 13 9 6 12 9 16 *** *** NO. OF DAYS PRECIPITATION EQUAL 11 10 10 7 5 12 7 5 12 6 13 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 3 0 1 0 4 2 0 5 2 7 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 90 85 86 86 91 87 86 90 84 91 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 78 66 69 77 86 77 73 81 74 80 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 86 90 84 81 87 90 87 85 90 90 91 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 2 0 0 0 0 0 0 0 0 0 *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 12 25 7 0 0 *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 3 7 13 1 0 0 *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 8 4 0 0 0 0 0 0 0 0 0 *** *** DATE OF START AND END FREEZING START = 13 JAN. END = 18 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 8.0 5.9 9.5 ***** 19.1 21.1 24.2 25.0 21.8 18.5 14.7 7.9 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 3.9 2.4 6.3 ***** 14.8 17.9 20.5 21.6 17.0 14.4 10.7 3.4 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.0 9.4 12.7 ***** 23.3 24.4 27.9 28.4 26.6 22.6 18.7 12.4 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.1 7.0 6.4 ***** 8.5 6.5 7.4 6.8 9.6 8.2 8.0 9.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.95 4.42 5.69 ***** 10.77 12.84 14.43 15.55 10.34 10.35 8.26 4.59 ***** MEAN OF MIXING RATIO AT 09 GMT. 6.05 5.09 6.58 ***** 14.43 15.03 17.69 18.09 13.73 13.85 11.14 5.87 ***** MEAN OF MIXING RATIO AT 15 GMT. 6.04 5.07 6.72 ***** 12.92 14.27 17.15 17.86 13.67 12.28 9.37 5.70 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -0.5 -2.0 1.0 ***** 9.5 12.0 14.0 19.5 13.5 10.0 6.0 -2.0 ****** DAY 11 20 3 ** 8 5 1 10 16 14 28 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.5 18.0 26.0 ***** 31.0 28.0 32.0 32.5 30.5 29.5 26.0 21.0 ****** DAY 30 27 29 ** 29 11 23 16 26 19 3 14 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.8 31.4 6.6 ***** 16.2 40.8 0.0 10.4 21.0 134.6 30.4 31.4 ****** DAY 5 3 31 ** 6 4 ** 30 30 20 19 6 MONTHLY TOTAL PRECIPITATION IN MM. 38.2 94.0 35.0 ***** 43.0 147.2 0.0 38.8 73.6 253.8 109.6 89.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 18.1 20.6 12.2 49.1 NO. OF DAYS WITH PRECIPITATION. 7 13 16 *** 6 16 0 11 8 13 11 8 *** NO. OF DAYS PRECIPITATION EQUAL 5 12 11 *** 5 14 0 9 7 12 9 8 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 4 0 *** 2 4 0 1 3 6 4 4 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 88 90 *** 90 91 87 89 76 90 91 83 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 76 75 79 *** 83 83 78 79 67 83 85 70 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 89 86 89 *** 90 87 87 89 82 93 93 89 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 *** 0 2 13 22 2 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 1 0 3 5 1 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. 3 6 0 *** 0 0 0 0 0 0 0 4 *** DATE OF START AND END FREEZING START = 7 DEC. END = 21 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 8.7 8.4 10.9 15.9 20.7 23.8 25.6 26.4 23.8 17.2 15.3 8.8 17.1 AVERAGE OF MINIMUM TEMPERATURE IN C. 4.5 4.3 7.0 11.3 16.0 18.9 21.7 22.5 19.4 12.8 9.3 3.5 12.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.8 12.4 14.7 20.5 25.4 28.7 29.6 30.2 28.1 21.5 21.3 14.1 21.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.3 8.1 7.7 9.3 9.4 9.8 7.9 7.7 8.7 8.7 12.0 10.6 9.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 5.28 5.40 5.87 7.97 11.42 13.19 15.75 16.53 13.53 9.33 7.25 4.72 9.69 MEAN OF MIXING RATIO AT 09 GMT. 7.11 7.49 7.52 10.31 15.47 17.26 17.54 19.42 17.29 11.59 10.65 6.92 12.38 MEAN OF MIXING RATIO AT 15 GMT. 6.39 6.89 7.18 9.69 13.91 15.91 18.20 19.38 17.05 10.69 9.16 5.73 11.68 ABSOLUTE OF MINIMUM TEMPERATURE IN C. 1.0 0.5 2.5 5.5 12.5 14.5 19.0 18.0 12.5 8.5 3.5 -1.5 -1.5 DAY 15 26 16 8 3 1 18 12 23 19 28 19 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 22.5 18.5 22.5 30.5 30.0 40.0 32.5 33.0 32.0 29.5 31.5 22.0 40.0 DAY 12 11 31 29 24 29 16 4 11 3 8 22 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.0 16.0 9.2 5.8 1.2 27.2 6.4 6.0 85.2 37.4 30.6 22.6 85.2 DAY 18 24 17 13 28 22 7 8 21 17 26 17 MONTHLY TOTAL PRECIPITATION IN MM. 24.8 47.8 19.2 27.4 1.4 52.8 20.0 16.0 139.3 147.4 48.2 101.0 645.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 14.2 12.6 27.2 46.0 NO. OF DAYS WITH PRECIPITATION. 9 10 4 8 2 9 4 6 6 9 3 10 80 NO. OF DAYS PRECIPITATION EQUAL 7 8 3 5 1 8 4 5 6 9 3 10 69 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 0 1 0 0 5 6 2 4 19 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 94 87 86 88 83 86 89 85 85 82 86 87 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 82 88 76 74 79 75 73 76 75 76 68 73 76 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 90 93 89 84 90 83 87 88 90 89 87 88 88 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 22 29 12 0 0 0 67 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 1 10 17 18 14 0 1 0 62 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 0 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 0 0 0 0 0 0 0 0 0 0 0 7 7 DATE OF START AND END FREEZING START = 18 DEC. END = 26 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 6.7 7.7 7.9 12.3 20.1 22.0 25.6 25.9 23.6 18.4 13.1 11.8 16.3 AVERAGE OF MINIMUM TEMPERATURE IN C. 3.1 3.8 5.5 8.9 15.2 18.6 20.9 21.7 19.4 13.5 8.6 6.8 12.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.4 11.6 10.3 15.6 25.0 25.4 30.3 30.1 27.8 23.3 17.5 16.8 20.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.3 7.8 4.8 6.7 9.8 6.8 9.4 8.4 8.4 9.8 8.9 10.0 8.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.68 4.94 5.44 7.02 11.38 13.37 15.50 15.30 13.91 9.57 6.84 6.26 9.52 MEAN OF MIXING RATIO AT 09 GMT. 6.07 6.25 6.25 8.20 16.03 15.51 19.53 19.53 17.28 12.25 9.16 9.68 12.14 MEAN OF MIXING RATIO AT 15 GMT. 5.77 5.89 6.14 7.87 13.90 15.02 19.51 19.21 16.99 11.13 8.41 7.34 11.43 ABSOLUTE OF MINIMUM TEMPERATURE IN C. 0.0 -2.0 2.5 3.0 10.0 16.0 16.0 18.0 15.0 8.5 3.0 3.0 -2.0 DAY 18 4 1 7 2 16 17 4 21 20 20 2 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 26.5 16.5 27.0 32.5 33.0 33.0 34.0 34.0 33.5 20.5 25.5 34.0 DAY 4 9 29 29 15 29 24 25 7 24 2 25 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.0 28.6 10.6 22.4 13.6 10.6 13.8 10.6 90.0 63.4 51.0 16.0 90.0 DAY 8 11 13 3 26 22 1 28 19 28 12 17 MONTHLY TOTAL PRECIPITATION IN MM. 44.0 124.0 43.2 69.0 16.2 54.4 13.8 24.2 185.0 204.4 81.6 54.2 914.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 23.1 15.3 24.4 37.2 NO. OF DAYS WITH PRECIPITATION. 8 12 12 10 4 11 1 7 11 9 6 5 96 NO. OF DAYS PRECIPITATION EQUAL 5 11 9 10 2 11 1 7 10 9 5 5 85 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 5 1 3 1 1 1 1 4 6 3 3 30 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 87 91 90 91 89 83 84 87 86 86 91 88 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 80 81 84 81 84 80 74 76 76 73 76 85 79 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 91 89 92 88 90 89 88 89 89 89 90 90 90 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 18 22 9 0 0 0 51 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 3 1 23 17 10 2 0 0 56 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 3 3 0 0 0 0 0 0 0 0 0 0 6 DATE OF START AND END FREEZING START = 18 JAN. END = 24 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 9.1 6.7 8.2 15.2 20.0 24.1 25.1 26.4 21.2 20.3 12.4 9.3 16.5 AVERAGE OF MINIMUM TEMPERATURE IN C. 5.2 2.6 4.1 9.6 14.8 20.4 22.0 22.8 17.5 15.3 7.6 4.4 12.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.0 10.9 12.4 20.7 25.2 27.8 28.2 30.0 24.9 25.4 17.2 14.2 20.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.8 8.3 8.3 11.1 10.4 7.4 6.2 7.2 7.4 10.1 9.6 9.8 8.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 5.84 4.59 5.50 7.65 11.72 15.61 16.69 16.62 13.29 10.73 7.01 5.18 10.04 MEAN OF MIXING RATIO AT 09 GMT. 7.66 6.79 7.36 11.89 16.77 19.48 18.44 20.00 17.68 14.68 8.66 7.04 13.04 MEAN OF MIXING RATIO AT 15 GMT. 6.51 5.69 6.41 10.72 14.44 17.92 19.08 19.00 14.90 13.44 8.08 6.45 11.89 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -1.5 -2.0 -1.0 2.0 8.0 16.5 18.5 21.0 14.0 10.0 4.5 0.0 -2.0 DAY 30 8 9 12 6 2 2 2 16 26 29 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 25.0 17.0 22.0 31.5 32.5 33.0 31.5 32.5 32.5 33.0 24.5 21.5 33.0 DAY 6 17 23 24 26 13 1 11 1 13 4 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 19.8 16.8 39.4 32.0 6.8 64.2 31.4 2.0 60.2 12.0 72.0 70.8 72.0 DAY 4 21 8 11 20 3 7 21 5 31 6 17 MONTHLY TOTAL PRECIPITATION IN MM. 73.0 67.0 116.2 40.2 17.2 109.4 74.6 5.0 183.8 36.4 207.8 190.4 1121.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 22.9 14.9 23.5 38.8 NO. OF DAYS WITH PRECIPITATION. 11 11 8 4 7 8 8 4 11 7 6 8 93 NO. OF DAYS PRECIPITATION EQUAL 8 9 7 3 4 7 8 3 11 6 6 7 79 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 3 6 1 0 3 2 0 6 1 3 5 33 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 92 91 92 92 93 91 91 87 93 84 89 86 90 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 87 90 88 83 89 86 80 76 92 76 74 73 83 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 90 91 90 91 94 92 91 86 91 88 88 87 90 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 10 26 31 1 0 0 0 69 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 2 5 8 20 2 1 0 0 39 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. 2 8 3 0 0 0 0 0 0 0 0 1 14 DATE OF START AND END FREEZING START = 29 DEC. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. MEAN AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 6.5 6.0 10.3 16.1 20.0 25.5 26.1 26.7 23.0 18.2 15.1 11.5 17.1 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.6 1.5 5.6 10.8 15.3 20.7 21.6 22.3 19.4 13.4 10.5 7.7 12.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.4 11.1 15.0 21.4 24.8 30.3 30.5 31.2 26.5 22.9 19.6 15.2 21.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.8 9.6 9.4 10.6 9.5 9.6 8.9 8.9 7.1 9.5 9.1 7.5 9.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.59 4.14 5.78 7.99 10.83 14.78 16.21 16.00 13.78 9.74 8.30 6.71 9.90 MEAN OF MIXING RATIO AT 09 GMT. 5.88 5.01 6.80 10.42 13.46 17.61 17.13 17.96 16.01 12.29 10.14 7.91 11.72 MEAN OF MIXING RATIO AT 15 GMT. 5.46 5.31 7.21 9.85 12.68 16.69 18.15 19.04 15.88 11.34 9.79 7.77 11.60 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -1.0 -1.5 -1.0 2.0 9.5 17.0 19.0 19.5 16.0 8.0 7.5 3.0 -1.5 DAY 17 24 3 2 5 4 25 31 17 11 15 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 25.5 26.5 31.0 31.5 34.5 33.0 35.0 32.0 32.5 27.5 25.0 35.0 DAY 7 7 24 14 21 23 6 7 1 1 16 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 24.6 31.0 9.6 27.4 3.8 9.0 11.4 14.8 14.2 210.0 23.0 19.6 210.0 DAY 2 19 26 6 1 27 8 13 7 8 29 2 MONTHLY TOTAL PRECIPITATION IN MM. 63.6 108.2 24.0 73.2 12.0 17.0 17.6 40.0 62.0 256.2 75.6 46.4 795.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 24.6 12.8 15.0 47.5 NO. OF DAYS WITH PRECIPITATION. 10 9 6 7 5 5 5 5 12 9 8 11 92 NO. OF DAYS PRECIPITATION EQUAL 8 8 5 6 5 4 4 4 11 7 8 10 80 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 4 0 3 0 0 1 2 2 3 4 1 22 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 84 87 85 85 82 86 84 89 87 88 91 86 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 78 66 70 71 72 68 65 66 77 72 75 78 72 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 92 84 86 83 83 78 80 84 89 86 89 88 85 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 16 23 27 7 0 0 0 73 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 2 1 17 20 22 3 1 0 0 66 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 4 9 1 0 0 0 0 0 0 0 0 0 14 DATE OF START AND END FREEZING START = 8 JAN. END = 3 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 8.1 10.8 10.5 14.2 17.6 22.3 24.8 27.4 23.0 19.6 12.6 10.2 16.8 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.9 5.7 6.3 9.6 13.1 17.8 20.5 22.5 19.3 15.3 7.8 4.1 12.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.3 15.8 14.7 18.9 22.0 27.0 29.2 32.3 26.7 23.9 17.3 16.2 21.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.4 10.1 8.4 9.3 8.9 9.2 8.7 9.8 7.5 8.6 9.5 12.1 9.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.74 5.50 6.20 7.69 10.14 13.31 15.13 16.98 13.57 10.74 6.64 5.41 9.67 MEAN OF MIXING RATIO AT 09 GMT. 5.92 6.46 7.03 9.14 13.41 16.38 18.69 22.84 15.74 13.55 8.28 6.76 12.02 MEAN OF MIXING RATIO AT 15 GMT. 6.07 6.76 7.11 9.01 11.95 15.29 18.55 22.00 15.72 12.92 8.24 6.73 11.70 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -0.6 0.5 1.0 5.5 8.0 14.0 17.0 19.0 13.0 8.0 1.0 0.0 -0.6 DAY 5 22 19 10 22 6 13 3 24 28 30 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.0 23.5 24.5 26.5 27.5 31.0 32.5 35.0 30.5 32.5 27.0 24.0 35.0 DAY 11 20 21 13 2 27 31 23 3 16 25 30 24 HOUR MAXIMUM PRECIPITATION IN MM. 48.8 13.6 12.0 16.0 15.2 0.6 54.0 13.8 53.4 76.0 45.6 46.0 76.0 DAY 1 4 17 7 8 28 12 30 23 25 10 16 MONTHLY TOTAL PRECIPITATION IN MM. 97.2 16.0 27.6 45.6 62.8 0.6 123.4 32.0 122.7 114.8 124.2 59.8 826.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 17.0 13.2 33.6 36.1 NO. OF DAYS WITH PRECIPITATION. 7 2 8 9 9 1 6 4 12 7 10 5 80 NO. OF DAYS PRECIPITATION EQUAL 7 2 7 6 9 0 6 3 11 5 9 4 69 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 1 1 1 2 0 3 2 4 3 5 1 26 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 84 89 89 90 86 87 88 88 87 87 88 88 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 66 63 72 74 85 75 75 76 74 76 71 64 73 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 87 80 86 85 90 81 89 87 87 87 90 85 86 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 11 25 7 0 0 0 47 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 14 29 6 1 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. 5 0 0 0 0 0 0 0 0 0 0 1 6 DATE OF START AND END FREEZING START = 6 DEC. END = 23 JAN. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 7.9 7.9 9.3 17.7 18.9 22.6 25.7 27.0 23.7 17.1 12.2 9.5 16.6 AVERAGE OF MINIMUM TEMPERATURE IN C. 3.3 2.9 4.9 11.4 14.8 18.2 20.3 22.5 20.4 13.3 8.0 4.9 12.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.6 13.0 13.6 23.9 23.0 27.0 31.2 31.5 27.1 21.0 16.3 14.1 21.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.3 10.1 8.7 12.5 8.2 8.8 10.9 9.0 6.7 7.7 8.3 9.2 9.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.72 4.41 5.42 8.38 10.50 12.66 14.64 15.78 14.73 9.96 6.87 5.46 9.46 MEAN OF MIXING RATIO AT 09 GMT. 5.62 5.68 6.33 10.86 12.12 14.46 17.95 18.67 16.14 11.31 8.24 7.06 11.20 MEAN OF MIXING RATIO AT 15 GMT. 5.22 5.49 6.24 10.47 11.83 14.14 17.70 19.02 16.16 10.96 8.02 6.71 11.00 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.5 -2.5 -0.5 6.5 9.5 11.5 17.5 19.0 16.5 9.0 3.0 0.5 -3.5 DAY 18 9 4 2 12 14 22 1 26 16 17 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 26.0 20.5 24.5 31.0 32.0 31.5 34.0 36.0 31.5 26.0 20.0 18.5 36.0 DAY 19 17 19 7 3 8 23 3 8 11 4 31 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.6 15.6 24.8 0.0 17.4 21.0 3.4 23.0 23.0 72.4 39.0 15.2 72.4 DAY 28 8 12 ** 4 13 9 5 2 14 6 9 MONTHLY TOTAL PRECIPITATION IN MM. 37.4 57.0 86.2 0.0 63.6 48.0 7.6 54.0 51.6 245.8 125.4 61.6 838.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 21.5 13.3 13.5 51.6 NO. OF DAYS WITH PRECIPITATION. 11 9 13 0 11 8 3 6 4 14 7 10 96 NO. OF DAYS PRECIPITATION EQUAL 8 9 11 0 11 7 3 5 4 12 7 10 87 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 4 0 2 1 0 3 2 7 3 2 27 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 83 88 86 89 83 80 84 90 90 89 88 86 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 66 71 62 74 67 65 68 75 77 73 74 70 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 86 85 79 83 78 76 81 87 90 87 89 84 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 11 25 10 0 0 0 50 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 4 1 4 22 26 1 0 0 0 58 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. 4 5 2 0 0 0 0 0 0 0 0 0 11 DATE OF START AND END FREEZING START = 16 JAN. END = 17 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 6.8 9.6 12.7 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 2.3 4.3 6.9 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.3 14.8 18.6 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.0 10.5 11.7 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.50 4.87 6.26 ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 5.61 6.03 7.60 ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 5.78 5.94 7.61 ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.5 -0.5 1.5 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY 29 1 14 ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 19.5 25.5 33.5 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY 1 21 29 ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 44.0 13.6 21.6 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY 20 22 26 ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 81.8 36.2 72.6 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 100.0 ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. 6 5 6 *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL 6 5 6 *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 4 *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 83 85 *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 65 68 *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 89 83 82 *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 0 0 *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 2 *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 8 4 0 *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = 17 JAN. END = 14 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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.***** ***** ***** ***** 18.7 22.9 26.1 26.4 25.1 21.3 15.0 6.8 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** 13.9 17.8 21.4 22.7 20.2 15.3 9.9 2.4 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** 18.0 17.1 21.9 27.8 30.8 30.1 29.9 27.5 20.1 11.2 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** 8.0 10.0 9.4 7.4 9.7 12.2 10.2 8.8 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** 6.73 8.03 10.46 14.11 15.89 17.54 14.81 12.82 8.07 4.58 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** 8.34 10.07 13.89 18.47 21.70 22.64 20.63 20.30 12.80 6.06 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** 7.75 9.33 13.07 17.44 20.69 20.90 18.71 15.01 9.99 5.21 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** 10.0 13.5 16.0 20.5 15.5 9.0 5.0 -1.6 ****** DAY ** ** ** ** 15 8 2 14 27 16 25 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** 27.5 26.2 30.5 31.0 34.0 33.0 34.5 33.6 28.0 18.0 ****** DAY ** ** 26 8 28 25 5 2 27 2 12 31 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** 36.8 42.5 17.0 4.8 5.4 28.9 5.3 76.0 95.0 37.4 ****** DAY ** ** 10 22 13 30 23 11 14 22 14 2 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** 94.6 118.6 62.6 9.6 19.2 43.8 5.3 106.9 319.2 141.6 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 10.3 20.7 7.4 61.6 NO. OF DAYS WITH PRECIPITATION. *** *** 9 17 12 3 6 6 1 5 11 11 *** NO. OF DAYS PRECIPITATION EQUAL *** *** 8 16 12 3 6 6 1 5 11 11 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** 3 2 2 0 0 1 0 2 5 7 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** 87 94 92 89 86 91 88 91 93 88 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** 73 91 93 85 82 90 82 93 88 80 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** 83 94 96 92 90 94 93 93 96 92 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** 0 0 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** 0 3 22 27 14 1 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 2 8 21 20 16 5 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 0 0 8 *** DATE OF START AND END FREEZING START = 18 DEC. END = 31 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 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. 9.0 8.4 8.2 12.5 18.0 21.1 24.5 25.8 22.7 20.3 13.7 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 4.0 4.8 5.1 8.8 12.1 16.4 20.7 20.8 18.7 15.4 9.0 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 14.1 12.1 11.3 16.3 23.9 25.7 28.3 30.8 26.7 25.3 18.3 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.1 7.3 6.2 7.5 11.8 9.3 7.6 10.0 8.0 9.9 9.3 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.79 5.24 5.50 6.85 9.27 12.35 15.17 15.23 13.40 11.00 6.72 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 6.90 6.59 6.16 7.87 11.47 14.10 16.81 18.38 15.56 13.50 8.28 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 5.95 6.09 5.98 7.83 10.87 13.69 16.68 18.09 15.36 12.95 8.15 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -0.2 -2.4 -1.0 2.0 4.0 11.0 17.6 18.0 14.0 12.0 4.0 ***** ****** DAY 4 18 3 30 2 13 4 10 28 9 24 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 26.5 24.5 16.5 34.5 30.0 29.0 32.0 37.5 34.5 30.0 23.5 ***** ****** DAY 7 4 22 26 30 16 13 12 3 19 1 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 26.0 24.0 28.0 15.0 21.5 38.0 2.5 10.0 97.0 166.0 32.5 ***** ****** DAY 16 28 8 17 24 25 25 26 7 20 3 ** MONTHLY TOTAL PRECIPITATION IN MM. 44.0 99.6 111.5 62.0 36.5 64.0 5.5 26.5 303.5 191.0 60.5 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 25.4 16.2 33.4 25.0 NO. OF DAYS WITH PRECIPITATION. 4 11 15 12 5 3 3 4 9 5 3 *** *** NO. OF DAYS PRECIPITATION EQUAL 4 11 15 12 5 3 3 4 9 5 3 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 4 4 2 1 2 0 1 6 2 3 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 89 92 86 82 86 85 86 87 89 85 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 75 81 80 75 66 72 73 71 75 71 67 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 86 90 89 86 75 81 82 84 89 90 89 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 16 16 4 0 0 *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 1 0 8 20 7 2 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. 2 1 1 0 0 0 0 0 0 0 0 *** *** DATE OF START AND END FREEZING START = 4 JAN. END = 3 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. MEAN AND EXTREMES FOR THE PERIOD 1978 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. 7.2 7.1 9.1 14.4 18.8 22.7 25.2 25.5 22.7 18.2 13.4 9.2 16.1 SD OF MEAN DAILY TEMPERATURE IN C. 1.38 1.58 1.50 1.36 0.99 1.23 0.71 0.96 0.96 1.57 1.59 1.76 1.30 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.0 2.4 5.0 9.5 14.2 18.3 21.0 21.5 18.5 13.5 8.6 3.7 11.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.3 11.9 13.4 19.2 23.4 27.2 29.4 29.6 26.9 23.0 18.2 14.5 20.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.2 9.2 8.3 9.9 9.3 9.0 8.4 8.1 8.4 9.5 9.7 10.8 9.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.50 4.56 5.62 7.73 10.49 13.46 15.57 15.58 13.20 9.95 7.11 5.15 9.40 MEAN OF MIXING RATIO AT 09 GMT. 5.85 5.59 6.58 9.14 12.51 15.67 17.73 18.07 15.72 12.24 8.96 6.72 11.23 MEAN OF MIXING RATIO AT 15 GMT. 5.42 5.47 6.43 8.74 11.73 14.94 17.52 17.95 15.24 11.51 8.32 6.18 10.78 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -8.0 -6.5 0.0 4.0 11.0 14.0 15.0 11.0 5.0 -3.0 -8.5 -8.5 YEAR - DAY 83-27 80- 3 79- 2 81- 3 3- 2 3-13 94- 1 85-30 81-25 84-21 82-16 82-11 82-11 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 26.5 27.0 33.5 35.0 35.5 40.0 37.5 37.5 36.0 33.6 31.5 28.5 40.0 YEAR - DAY 3- 7 87-25 1-29 91-26 87-23 95-29 91- 1 3-12 79-17 2- 2 95- 8 90- 5 95-29 24 HOUR MAXIMUM PRECIPITATION IN MM. 51.0 51.0 41.0 44.0 65.0 64.2 54.0 64.0 144.0 210.0 97.8 76.0 210.0 YEAR - DAY 86-20 82- 5 87-20 81- 1 92-11 97- 3 92- 8 87-15 89-19 98- 8 92-26 83-14 98- 8 MONTHLY TOTAL PRECIPITATION IN MM. 60.1 66.1 60.0 39.7 38.6 39.6 31.5 45.6 111.9 150.4 119.9 87.5 850.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 21.9 13.8 22.2 42.1 NO. OF DAYS WITH PRECIPITATION. 8 9 10 8 7 6 5 7 7 8 8 8 91 NO. OF DAYS PRECIPITATION EQUAL 7 8 9 6 6 5 4 6 7 8 7 8 81 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 2 1 1 1 1 2 3 4 4 3 26 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 87 89 88 87 85 84 86 86 87 88 87 87 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 71 71 75 73 74 73 72 73 74 73 73 70 73 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 86 86 86 84 85 83 83 85 86 87 88 86 85 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 1 0 0 0 0 0 0 0 0 0 1 4 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 17 21 5 0 0 0 48 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 2 5 14 16 6 1 0 0 45 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. 9 7 2 0 0 0 0 0 0 0 0 5 23 DATE OF START AND END FREEZING START = 16 NOV. END = 3 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHAMESTAN-NOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 52 9 E ELEVATION 73 MET. MEAN AND EXTREMES FOR THE PERIOD 1978 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. 7.4 7.3 9.5 14.7 19.2 23.4 25.9 25.8 23.0 18.6 13.4 9.3 16.5 AVERAGE DEW POINT TEMPERATURE. IN C. 4.1 3.9 6.5 11.2 15.8 19.6 22.0 22.2 19.7 15.3 10.4 5.9 13.1 AVERAGE OF MIXING RATIO IN G/KG 5.26 5.20 6.21 8.53 11.57 14.68 16.94 17.20 14.72 11.23 8.12 6.01 10.47 AVERAGE OF VAPOUR PRESSURE HPA 8.42 8.32 9.92 13.58 18.33 23.16 26.62 27.02 23.20 17.80 12.93 9.60 16.58 AVERAGE OF SATURATION DEFICIT IN HPA 2.33 2.36 2.41 3.76 4.61 6.21 7.20 6.75 5.50 4.21 3.05 2.68 4.25 AVERAGE RELATIVE HUMIDITY IN PERCENT 81 81 83 82 82 80 80 81 82 83 83 81 82 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 91 91 92 91 90 87 87 88 90 91 92 91 90 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 70 70 73 71 72 72 71 72 73 72 71 69 71 NO. OF DAYS PRECIPITATION EQUAL 4 4 4 3 2 2 2 3 5 5 6 5 45 OR MORE THAN 5 MM.