IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1986 -0.2 3.8 4.5 13.6 19.1 22.0 25.1 22.7 19.7 15.7 7.9 0.5 25.3 1987 2.4 4.4 8.1 13.3 20.1 23.4 25.2 25.3 20.3 11.9 9.0 2.8 22.9 1988 0.9 2.2 8.2 14.3 18.6 24.8 26.0 25.8 22.9 16.2 8.6 3.1 25.1 1989 -1.9 ****** 8.3 13.8 17.0 23.4 26.3 26.0 20.0 16.4 6.0 3.4 ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 1.2 2.2 4.5 13.2 17.0 23.0 24.1 25.6 23.0 18.9 8.6 1.5 24.4 1992 0.6 0.5 3.3 9.0 11.7 20.6 25.9 24.1 23.8 16.1 4.3 -0.5 26.4 1993 -0.2 1.5 6.4 15.8 ****** 21.9 24.8 ****** 23.2 ****** 4.3 2.7 ****** 1994 2.2 2.5 8.7 16.2 21.5 23.5 26.0 24.7 17.8 13.3 10.4 4.9 23.8 1995 2.6 3.3 8.0 13.6 20.9 22.7 24.8 23.7 19.7 11.3 4.7 0.7 24.1 1996 2.4 4.9 4.8 11.7 22.3 25.7 26.9 25.9 25.5 12.1 4.5 4.0 24.5 1997 4.8 4.1 9.0 13.3 22.6 25.7 29.5 27.5 20.2 18.3 11.4 6.0 25.4 1998 3.9 5.5 9.1 17.2 19.6 25.3 27.6 28.7 23.3 17.9 9.8 5.7 24.8 1999 2.5 6.9 10.1 18.7 26.9 29.9 28.6 25.8 22.2 15.0 8.6 5.1 27.4 2000 2.8 5.4 9.3 18.0 22.3 25.3 26.8 26.5 21.3 16.4 5.8 4.0 24.0 2001 2.5 5.2 10.3 16.9 21.8 26.6 26.9 26.3 ****** 16.0 8.8 4.4 ****** 2002 0.8 5.4 11.1 14.7 20.2 24.9 26.5 27.3 23.0 18.4 8.7 0.4 26.9 2003 ****** 4.1 7.4 13.9 16.9 22.8 27.2 24.7 20.2 16.1 6.4 1.2 ****** MEAN 1.7 3.9 7.7 14.5 19.9 24.2 26.3 25.7 21.6 15.6 7.5 2.9 24.6 SD 1.67 1.72 2.26 2.41 3.38 2.19 1.41 1.50 2.02 2.36 2.24 2.00 2.10 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 -6.6 -3.4 -2.4 6.6 9.1 11.3 14.6 12.6 8.8 5.7 -1.7 -5.0 4.1 1987 -4.9 -2.8 1.6 5.1 10.2 13.2 15.1 16.1 11.6 3.6 0.1 -4.6 5.4 1988 -4.7 -3.2 0.9 5.9 9.2 15.9 17.6 15.9 12.4 5.9 -0.6 -4.4 5.9 1989 -9.2 -8.6 0.3 4.2 6.1 13.0 15.4 14.5 12.9 4.5 -2.4 -4.8 3.8 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 -7.4 -5.5 -2.8 4.2 6.3 10.7 10.7 12.8 10.2 9.2 1.8 -8.3 3.5 1992 -7.2 -9.2 -5.2 2.3 3.7 9.7 14.0 11.6 10.6 4.8 -5.3 -9.8 1.7 1993 -8.8 -8.0 0.4 6.5 ****** 10.6 13.1 ****** 9.5 ****** -3.2 -4.9 ****** 1994 -6.2 -5.7 0.7 6.0 10.6 13.0 15.1 14.3 8.0 4.4 3.1 -1.5 5.1 1995 -5.4 -4.6 1.0 5.8 11.8 10.8 13.8 13.3 11.2 2.6 -4.6 -10.0 3.8 1996 -6.4 -2.6 -1.6 2.7 10.8 15.4 18.1 15.5 15.9 5.8 -4.8 -5.2 5.3 1997 -5.1 -4.8 3.7 6.8 13.9 17.9 20.5 17.2 11.3 9.2 1.8 -1.3 7.6 1998 -1.5 0.1 2.9 7.0 9.0 16.9 17.9 18.8 13.3 9.2 4.6 1.4 8.3 1999 -3.6 3.3 5.9 11.5 17.3 21.0 19.2 16.2 11.9 6.1 0.9 -2.5 8.9 2000 -5.3 -1.4 3.8 9.1 11.9 13.4 16.1 17.6 11.1 8.0 -0.4 -2.5 6.8 2001 -3.1 -1.4 2.2 7.4 12.5 19.2 19.7 17.6 ****** 7.5 1.0 -0.8 ****** 2002 -4.8 -0.7 3.6 8.4 13.1 17.1 18.6 18.9 13.1 9.7 1.1 -4.8 7.8 2003 ****** -1.6 1.3 7.3 9.1 15.2 20.0 17.3 12.0 7.4 -0.5 -4.9 ****** MEAN -5.6 -3.5 1.0 6.3 10.3 14.4 16.4 15.6 11.5 6.5 -0.5 -4.3 5.7 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 6.3 10.1 11.2 20.8 29.1 32.5 35.5 32.7 30.6 25.6 17.1 6.4 21.5 1987 9.7 11.6 14.5 21.4 30.0 33.7 35.3 34.4 28.9 20.1 17.8 10.2 22.3 1988 6.5 7.7 15.5 22.7 28.0 33.8 34.4 35.6 33.3 26.5 17.8 10.7 22.7 1989 5.4 ****** 16.3 23.4 28.0 33.7 37.3 37.6 27.0 28.3 14.3 11.5 ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 9.7 9.9 11.9 22.2 27.6 35.3 37.4 38.5 35.8 28.6 15.5 11.4 23.7 1992 8.3 10.1 12.3 15.7 19.7 31.5 37.7 36.7 37.0 27.3 13.9 8.7 21.6 1993 8.5 11.1 12.5 25.1 ****** 33.3 36.5 ****** 36.8 ****** 11.9 10.3 ****** 1994 10.6 10.8 16.8 26.4 32.4 34.0 36.9 35.1 27.7 22.3 17.7 11.1 23.5 1995 10.6 11.2 15.0 21.3 30.1 34.9 37.8 34.6 28.1 20.0 14.0 11.3 22.4 1996 11.2 12.4 11.3 20.7 33.8 36.1 35.7 36.4 35.1 18.4 13.9 13.2 23.2 1997 14.6 12.9 14.3 19.7 31.3 33.6 38.5 37.7 29.1 27.4 20.9 13.2 24.4 1998 9.3 10.9 15.2 27.4 30.2 33.7 37.2 38.6 33.2 26.7 15.0 9.9 23.9 1999 8.6 10.5 14.4 25.8 36.5 38.8 38.0 35.4 32.4 23.8 16.3 12.7 24.4 2000 11.0 12.2 14.8 26.8 32.7 37.3 37.4 35.4 31.5 24.7 12.1 10.5 23.9 2001 8.2 11.8 18.4 26.4 31.1 34.1 34.0 35.1 ****** 24.6 16.5 9.6 ****** 2002 6.4 11.5 18.7 21.0 27.3 32.6 34.3 35.6 33.0 27.1 16.4 5.6 22.5 2003 ****** 9.9 13.5 20.4 24.6 30.5 34.3 32.0 28.5 24.7 13.3 7.3 ****** MEAN 9.1 10.9 14.5 22.8 29.5 34.1 36.4 35.7 31.7 24.7 15.5 10.2 22.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 12.9 13.5 13.6 14.2 20.0 21.2 20.9 20.1 21.8 19.9 18.8 11.4 17.4 1987 14.6 14.4 12.9 16.3 19.8 20.5 20.2 18.3 17.3 16.5 17.7 14.8 16.9 1988 11.2 10.9 14.6 16.8 18.8 17.9 16.8 19.7 20.9 20.6 18.4 15.1 16.8 1989 14.6 ****** 16.0 19.2 21.9 20.7 21.9 23.1 14.1 23.8 16.7 16.3 ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 17.1 15.4 14.7 18.0 21.3 24.6 26.7 25.7 25.6 19.4 13.7 19.7 20.2 1992 15.5 19.3 17.5 13.4 16.0 21.8 23.7 25.1 26.4 22.5 19.2 18.5 19.9 1993 17.3 19.1 12.1 18.6 ****** 22.7 23.4 ****** 27.3 ****** 15.1 15.2 ****** 1994 16.8 16.5 16.1 20.4 21.8 21.0 21.8 20.8 19.7 17.9 14.6 12.6 18.3 1995 16.0 15.8 14.0 15.5 18.3 24.1 24.0 21.3 16.9 17.4 18.6 21.3 18.6 1996 17.6 15.0 12.9 18.0 23.0 20.7 17.6 20.9 19.2 12.6 18.7 18.4 17.9 1997 19.7 17.7 10.6 12.9 17.4 15.7 18.0 20.5 17.8 18.2 19.1 14.5 16.8 1998 10.8 10.8 12.3 20.4 21.2 16.8 19.3 19.8 19.9 17.5 10.4 8.5 15.6 1999 12.2 7.2 8.5 14.3 19.2 17.8 18.8 19.2 20.5 17.7 15.4 15.2 15.5 2000 16.3 13.6 11.0 17.7 20.8 23.9 21.3 17.8 20.4 16.7 12.5 13.0 17.1 2001 11.3 13.2 16.2 19.0 18.6 14.9 14.3 17.5 ****** 17.1 15.5 10.4 ****** 2002 11.2 12.2 15.1 12.6 14.2 15.5 15.7 16.7 19.9 17.4 15.3 10.4 14.7 2003 ****** 11.5 12.2 13.1 15.5 15.3 14.3 14.7 16.5 17.3 13.8 12.2 ****** MEAN 14.7 14.1 13.5 16.5 19.2 19.7 19.9 20.1 20.3 18.3 16.1 14.6 17.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 2.53 2.83 2.83 6.43 6.67 7.74 9.64 9.05 6.99 5.74 3.41 2.61 5.54 1987 2.64 3.27 4.39 5.10 7.79 8.74 11.26 11.98 8.85 5.11 3.78 2.85 6.31 1988 2.55 3.23 4.04 5.71 7.32 9.58 10.46 9.28 8.27 5.38 3.39 2.50 5.98 1989 1.45 1.51 3.37 4.28 4.31 8.79 10.39 9.39 8.56 4.71 2.77 2.48 5.17 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 1.34 1.39 2.31 3.85 4.87 7.10 6.79 8.28 6.66 6.41 3.44 1.46 4.49 1992 1.60 1.18 2.50 4.42 3.61 6.14 9.10 7.65 6.72 4.44 2.27 1.30 4.24 1993 1.59 1.73 3.60 4.78 ****** 6.81 8.53 ****** 6.45 ****** 2.84 2.53 ****** 1994 2.27 2.37 4.23 5.09 7.24 8.77 9.63 8.97 6.18 4.93 4.75 3.04 5.62 1995 2.13 2.63 3.69 5.45 9.31 8.64 9.58 9.49 9.00 4.59 2.52 1.39 5.70 1996 2.09 3.14 3.26 4.71 9.05 12.42 15.68 11.74 10.80 6.17 2.49 2.30 6.99 1997 2.36 2.43 4.50 5.88 11.38 6.65 6.80 13.06 4.57 4.09 2.91 2.98 5.63 1998 3.08 3.52 3.81 4.57 5.20 8.76 7.69 8.98 4.81 4.17 4.06 3.52 5.18 1999 2.87 4.04 4.81 6.49 8.57 9.40 8.14 6.69 5.90 5.03 4.22 3.25 5.78 2000 2.80 3.27 3.81 4.93 6.92 8.33 8.46 6.31 8.19 6.49 3.38 3.52 5.53 2001 3.14 3.45 4.43 6.14 7.91 6.89 7.66 8.08 ****** 4.69 3.52 3.64 ****** 2002 2.82 3.43 4.12 5.88 6.43 7.69 9.02 9.89 7.45 5.99 4.14 2.68 5.79 2003 ****** 3.63 4.14 6.17 7.74 9.54 11.65 9.86 7.77 5.90 3.95 3.00 ****** MEAN 2.33 2.77 3.76 5.29 7.15 8.36 9.45 9.30 7.33 5.25 3.41 2.66 5.58 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 5.20 4.52 3.91 7.63 8.04 11.97 13.44 15.52 11.42 8.74 5.49 3.96 8.32 1987 5.31 5.53 6.75 6.11 9.68 10.42 12.08 17.66 16.04 8.42 5.30 4.77 9.01 1988 4.38 4.46 3.95 6.13 7.32 13.49 11.68 12.86 12.06 7.95 4.38 4.39 7.75 1989 3.88 3.42 3.63 3.59 4.63 11.39 17.38 19.20 7.63 8.92 ****** 4.31 ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 3.25 3.33 3.28 6.01 8.53 16.86 21.41 21.59 21.27 13.30 5.25 3.96 10.67 1992 3.60 3.58 3.21 4.67 6.20 11.43 19.24 21.72 22.62 10.37 4.87 3.90 9.62 1993 3.97 3.57 3.84 8.56 ****** 16.87 22.93 ****** 18.56 ****** 4.32 3.82 ****** 1994 3.46 3.78 5.23 8.90 16.18 16.80 14.95 10.33 7.28 5.50 5.25 4.28 8.50 1995 4.27 3.45 4.83 8.58 14.67 9.84 9.63 6.03 5.10 3.37 1.95 3.79 6.29 1996 2.93 3.40 3.77 4.54 9.86 13.20 16.12 17.99 18.00 6.82 2.03 4.07 8.56 1997 4.22 4.18 4.69 6.31 15.27 3.78 5.14 19.79 2.84 3.64 2.21 3.41 6.29 1998 3.25 3.89 4.46 7.50 8.82 9.42 8.47 7.43 5.85 5.79 3.28 3.61 5.98 1999 3.88 3.76 4.70 6.55 9.91 6.78 6.32 6.82 5.95 5.37 4.78 4.11 5.74 2000 3.33 3.80 3.09 5.03 5.14 5.88 5.47 5.40 6.29 5.47 3.89 5.08 4.82 2001 4.52 4.57 6.27 6.13 6.53 5.35 6.01 6.18 ****** 5.66 4.47 4.89 ****** 2002 3.83 3.85 3.90 6.17 6.35 6.78 7.19 8.54 7.05 6.37 5.04 3.67 5.73 2003 ****** 3.82 4.70 7.11 8.34 9.21 12.12 8.86 7.84 6.52 4.48 3.87 ****** MEAN 3.96 3.94 4.37 6.45 9.10 10.56 12.33 12.87 10.99 7.02 4.19 4.12 7.49 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 4.69 4.45 3.96 7.06 8.69 10.15 14.20 15.87 11.68 7.24 5.26 3.42 8.06 1987 4.72 4.89 6.29 6.40 10.14 12.01 12.19 14.84 12.00 6.87 5.01 4.27 8.30 1988 3.88 3.89 3.85 5.81 6.88 11.03 10.39 9.89 9.32 6.63 3.81 3.88 6.60 1989 2.46 2.74 3.49 3.29 3.59 8.98 16.15 14.96 9.04 7.71 4.26 3.70 6.70 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 1.90 2.08 2.26 4.50 6.52 10.59 14.64 16.14 14.94 9.33 3.72 2.81 7.45 1992 2.56 1.90 2.95 4.16 4.30 6.99 11.87 13.32 14.96 7.15 3.96 2.88 6.42 1993 2.24 3.47 3.44 5.59 ****** 10.36 14.88 ****** 11.03 ****** 4.21 3.82 ****** 1994 4.08 3.80 4.22 6.76 12.12 11.86 14.11 11.77 7.39 5.70 5.11 2.92 7.49 1995 3.49 3.46 4.84 7.06 10.83 11.24 11.74 12.36 11.14 7.51 5.02 5.57 7.86 1996 5.13 5.65 4.79 6.99 16.42 20.20 21.92 19.48 15.33 8.59 4.98 5.61 11.26 1997 6.83 5.98 4.68 6.25 11.07 6.65 6.29 21.36 2.64 5.48 4.61 5.61 7.29 1998 4.33 5.01 5.73 9.58 11.22 11.82 9.25 9.49 6.33 4.94 3.37 3.85 7.08 1999 3.93 4.14 4.82 7.70 8.11 10.26 10.77 9.58 7.71 5.76 4.60 4.40 6.82 2000 3.85 3.86 4.52 5.61 9.31 10.70 9.39 6.92 10.46 8.68 4.32 4.90 6.88 2001 4.67 5.03 7.44 7.17 8.45 7.77 9.58 9.32 ****** 7.09 4.46 4.84 ****** 2002 3.69 4.08 4.47 6.03 6.58 7.52 9.20 10.18 7.63 8.01 4.73 3.46 6.30 2003 ****** 4.08 4.68 6.70 8.34 9.68 13.71 10.99 8.88 6.58 4.31 3.51 ****** MEAN 3.91 4.03 4.50 6.28 8.92 10.46 12.37 12.91 10.03 7.08 4.46 4.09 7.42 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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 1986 -15.0 25 -7.2 7 -7.4 17 1.0 5 5.0 6 8.0 2 10.2 6 9.0 15 6.0 5 -2.0 17 -7.0 14 -11.2 15 -15.0 1987 -10.0 5 -8.0 11 -4.2 29 -1.0 2 4.4 6 9.2 14 7.0 5 12.0 1 6.0 27 -3.0 29 -5.0 2 -11.0 9 -11.0 1988 -10.4 5 -9.0 8 -5.4 6 -4.0 4 4.4 25 11.0 1 13.4 26 10.4 25 6.0 25 0.0 22 -7.0 24 -8.0 25 -10.4 1989 -12.4 15 -12.2 9 -7.4 14 -1.0 4 2.2 3 8.2 3 12.0 15 12.2 27 6.0 23 0.0 27 -8.0 25 -9.0 30 -12.4 1990 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1991 -12.0 2 -11.2 16 -10.0 9 2.2 1 3.4 4 6.2 3 9.0 10 11.0 2 8.0 28 5.0 29 -7.0 30 -14.4 29 -14.4 1992 -10.2 6 -12.0 4 -10.0 10 -1.0 1 1.0 1 7.0 1 11.0 7 8.0 21 8.0 27 1.0 27 -9.0 16 -15.0 19 -15.0 1993 -12.0 10 -10.2 15 -6.2 17 3.0 1 ***** ** 7.0 3 10.0 14 ***** ** 7.0 30 ***** ** -9.0 22 -11.2 5 ***** 1994 -10.0 22 -11.0 7 -3.0 4 2.0 4 5.2 2 9.0 18 12.0 3 9.0 11 4.0 12 2.0 19 -1.0 29 -6.0 13 -11.0 1995 -8.4 25 -9.0 19 -5.2 11 3.0 3 7.0 3 7.0 10 10.0 4 7.2 20 6.2 8 -5.4 25 -9.0 6 -15.2 11 -15.2 1996 -11.0 1 -9.0 14 -6.2 19 -5.0 6 7.0 14 10.0 4 14.2 3 13.0 5 10.2 5 4.0 2 -9.0 6 -10.0 7 -11.0 1997 -8.4 17 -9.0 7 1.0 13 4.2 6 8.2 2 13.0 6 16.2 27 13.2 28 7.2 23 6.0 23 -8.0 28 -7.2 27 -9.0 1998 -5.8 15 -3.6 28 -5.4 1 5.2 1 5.0 1 14.0 10 13.2 3 15.0 18 10.4 2 6.4 2 3.0 27 -4.8 29 -5.8 1999 -6.4 13 -3.0 8 2.4 8 6.4 5 13.4 1 18.0 4 16.6 15 14.0 19 6.2 29 2.2 18 -4.0 14 -8.2 12 -8.2 2000 -10.4 19 -8.2 8 -1.2 7 6.0 8 7.2 7 11.6 5 14.6 28 14.2 1 7.4 28 6.4 8 -4.2 29 -5.2 18 -10.4 2001 -8.6 30 -9.4 2 -4.0 12 2.4 14 9.0 28 13.0 2 16.0 5 13.0 14 ***** ** 2.0 28 -7.6 21 -6.2 23 ***** 2002 -18.2 14 -4.6 7 -9.0 11 3.4 6 5.4 2 14.0 1 15.2 5 9.4 14 7.2 28 5.0 29 -6.0 30 -18.4 5 -18.4 2003 ***** ** -9.2 18 -11.0 3 -1.2 2 -1.0 2 7.2 12 14.0 5 11.4 31 2.0 28 4.4 9 -9.2 24 -11.2 16 ***** LOW. -18.2 14 -12.2 9 -11.0 3 -5.0 6 -1.0 2 6.2 3 7.0 5 7.2 20 2.0 28 -5.4 25 -9.2 24 -18.4 5 -18.4 YEAR 2002 1989 2003 1996 2003 1991 1987 1995 2003 1995 2003 2002 2002 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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 1986 11.2 15 20.4 27 20.0 1 24.0 10 34.0 14 36.0 13 40.0 31 36.2 15 34.0 23 35.0 2 24.2 5 11.2 1 40.0 1987 16.0 25 16.0 3 22.0 7 32.2 18 38.4 30 37.2 30 40.0 7 37.4 15 36.4 7 30.4 8 24.0 9 14.4 25 40.0 1988 10.0 7 14.4 23 24.0 29 32.4 21 35.4 28 41.0 15 41.2 13 40.2 12 39.0 13 35.2 10 26.2 4 20.2 7 41.2 1989 7.4 2 ***** ** 25.2 29 35.2 27 35.4 30 38.2 27 40.2 13 41.0 10 38.0 1 38.4 1 22.0 2 22.4 1 ***** 1990 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1991 12.0 3 13.4 27 17.2 30 34.0 30 32.2 29 40.0 26 40.0 30 40.0 11 37.4 1 32.2 7 20.2 1 15.2 1 40.0 1992 11.0 3 12.4 23 14.6 29 18.4 14 25.2 29 36.6 29 39.2 12 38.6 8 38.4 5 30.0 1 24.4 1 11.4 1 39.2 1993 12.0 29 12.6 9 18.4 30 29.6 28 ***** ** 35.2 26 38.4 3 ***** ** 38.4 1 ***** ** 16.0 2 14.2 31 ***** 1994 14.0 29 15.4 26 22.0 27 33.0 25 35.4 22 37.6 27 42.0 17 40.0 25 35.0 3 28.0 19 23.0 1 17.4 1 42.0 1995 14.2 16 15.0 2 26.0 24 26.5 30 36.0 30 40.0 6 48.0 7 42.0 4 33.0 17 26.0 5 17.2 1 19.0 30 48.0 1996 17.0 8 18.2 18 17.4 28 29.0 23 38.2 7 42.2 29 42.0 28 40.2 30 39.0 2 24.0 9 17.2 1 18.2 18 42.2 1997 18.2 7 17.2 23 19.0 31 24.2 27 35.0 23 38.2 28 44.2 19 42.0 7 32.2 1 32.0 7 27.2 1 17.2 2 44.2 1998 12.0 6 16.0 8 26.4 30 36.0 16 35.0 21 40.0 29 42.0 5 41.0 19 38.0 12 30.4 11 20.4 1 13.4 4 42.0 1999 11.0 2 13.6 24 18.4 28 33.4 30 40.6 20 42.0 12 42.0 8 38.4 12 39.0 12 29.0 14 22.2 2 21.2 1 42.0 2000 15.2 2 15.2 28 19.0 31 34.4 1 40.2 30 40.2 28 39.2 17 39.2 9 37.0 1 28.2 11 19.0 1 15.0 12 40.2 2001 14.2 4 17.2 27 26.0 24 33.0 26 39.0 11 41.0 7 41.0 10 41.0 21 ***** ** 32.0 1 22.2 6 14.0 31 ***** 2002 16.2 2 18.4 27 29.0 27 30.2 19 36.0 29 40.0 13 41.0 18 41.0 9 36.2 12 32.2 3 21.4 3 9.0 1 41.0 2003 ***** ** 14.2 4 23.0 20 30.2 10 33.2 12 36.2 18 40.2 17 34.6 12 34.0 6 29.6 11 24.6 2 13.2 2 ***** HIG. 18.2 7 20.4 27 29.0 27 36.0 16 40.6 20 42.2 29 48.0 7 42.0 4 39.0 13 38.4 1 27.2 1 22.4 1 48.0 YEAR 1997 1986 2002 1998 1999 1996 1995 1995 1988 1989 1997 1989 1995 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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 1986 4.0 23 7.4 7 15.6 8 19.4 11 19.4 11 2.0 14 0.0 ** 6.2 23 0.0 ** 0.0 ** 6.0 30 8.0 2 19.4 1987 1.0 6 16.2 20 6.4 2 8.2 5 17.4 6 0.0 ** 3.0 26 0.1 6 0.0 ** 19.2 9 0.0 ** 15.2 28 19.2 1988 4.8 20 3.2 3 4.5 26 18.0 27 6.2 7 0.0 ** 1.1 28 5.0 21 9.0 1 2.0 14 4.0 29 14.2 18 18.0 1989 10.0 16 10.0 21 18.4 8 0.0 ** 0.0 ** 2.2 17 0.0 ** 0.0 ** 0.0 ** 5.0 29 0.0 ** 13.2 6 18.4 1990 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1991 8.2 24 8.2 4 8.0 2 23.0 4 17.4 3 0.0 ** 2.2 9 0.0 ** 0.0 ** 4.0 19 0.0 ** 7.0 28 23.0 1992 10.4 7 8.2 26 16.2 5 22.2 28 52.2 6 5.2 6 0.0 ** 3.2 6 1.0 15 0.0 ** 4.0 1 10.2 4 52.2 1993 8.4 2 19.2 3 8.2 3 2.2 22 ***** ** 11.0 4 0.0 ** ***** ** 0.0 ** ***** ** 4.0 27 2.0 20 ***** 1994 8.2 2 18.2 26 10.2 24 6.0 26 9.2 20 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 13.2 26 4.0 16 18.2 1995 12.3 15 0.0 ** 18.0 4 18.0 24 2.0 12 4.0 9 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 18.0 1996 4.0 19 13.0 2 8.0 12 7.2 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.2 12 13.0 1997 0.0 ** 3.0 17 0.0 ** 0.0 ** 4.0 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.0 25 5.0 14 2.0 1 5.0 1998 9.0 13 4.0 8 23.0 19 36.0 6 10.0 31 0.0 ** 1.0 24 0.0 ** 0.0 ** 2.0 15 0.0 ** 2.0 3 36.0 1999 5.5 20 1.5 8 4.0 6 2.5 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.0 22 8.0 28 3.0 18 0.0 ** 8.0 2000 14.5 29 12.0 13 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.0 30 7.0 14 4.0 10 10.0 12 14.5 2001 3.2 5 16.0 19 5.0 10 2.0 27 4.0 7 2.0 14 2.0 18 2.0 12 ***** ** 1.0 2 10.0 14 6.2 21 ***** 2002 12.0 12 2.0 1 12.0 23 18.0 12 8.0 5 1.0 7 2.0 21 4.0 13 4.0 25 0.0 ** 2.0 2 4.0 15 18.0 2003 ***** ** 6.0 20 26.1 8 15.0 12 2.2 9 4.2 2 1.0 31 1.0 25 1.0 25 5.2 5 3.0 13 14.0 9 ***** HIG. 14.5 29 19.2 3 26.1 8 36.0 6 52.2 6 11.0 4 3.0 26 6.2 23 9.0 1 19.2 9 13.2 26 15.2 28 52.2 YEAR 2000 1993 2003 1998 1992 1993 1987 1986 1988 1987 1994 1987 1992 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1986 5.0 16.4 21.0 31.8 19.4 2.0 0.0 6.2 0.0 0.0 11.0 20.5 133.3 31.8 39.9 4.7 23.6 1987 1.0 29.6 25.0 8.2 18.9 0.0 3.0 0.1 0.0 19.2 0.0 27.8 132.8 41.9 20.4 2.3 35.4 1988 19.7 7.6 12.1 24.0 6.2 0.0 1.1 6.0 16.2 2.0 4.0 20.2 119.1 33.1 25.4 19.6 22.0 1989 32.4 15.0 40.2 0.0 0.0 3.4 0.0 0.0 0.0 5.0 0.0 28.4 124.4 70.4 2.7 0.0 26.8 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1991 12.4 14.6 12.2 34.3 33.0 0.0 2.2 0.0 0.0 4.0 0.0 7.0 119.7 32.7 56.2 1.8 9.2 1992 16.8 22.6 28.8 59.2 88.0 7.4 0.0 3.2 1.0 0.0 5.2 19.8 252.0 27.1 61.3 1.7 9.9 1993 8.4 35.8 16.2 2.2 ****** 27.4 0.0 ****** 0.0 ****** 4.0 3.2 ****** 62.1 30.5 0.0 7.4 1994 14.4 29.2 15.4 8.2 9.2 0.0 0.0 0.0 0.0 0.0 30.8 6.0 113.2 52.1 15.4 0.0 32.5 1995 12.3 0.0 34.5 57.2 2.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 110.0 42.5 57.5 0.0 0.0 1996 5.0 13.0 40.0 17.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.2 77.4 74.9 22.2 0.0 2.8 1997 0.0 3.0 0.0 0.0 4.0 0.0 0.0 0.0 0.0 8.0 10.0 4.0 29.0 10.3 13.8 0.0 75.9 1998 19.0 12.6 35.0 65.0 26.0 0.0 1.0 0.0 0.0 2.0 0.0 2.0 162.6 41.0 56.0 0.6 2.5 1999 16.0 1.5 8.0 3.5 0.0 0.0 0.0 0.0 6.0 11.0 7.2 0.0 53.2 47.9 6.6 11.3 34.2 2000 36.0 16.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 11.0 8.0 21.0 94.0 55.3 0.0 2.1 42.6 2001 3.2 19.0 9.0 4.0 5.0 2.0 2.0 3.0 ****** 4.0 14.0 23.4 ****** 35.2 12.4 5.6 46.7 2002 22.0 5.0 19.0 66.0 17.0 2.0 2.0 4.0 4.0 0.0 5.0 13.4 159.4 28.9 53.3 6.3 11.5 2003 ****** 21.0 56.3 68.4 8.6 6.2 1.0 1.0 1.0 7.2 9.0 17.4 ****** 39.2 42.2 1.5 17.0 MEAN 14.0 15.4 21.9 26.4 14.8 3.2 0.7 1.5 1.9 4.6 6.4 12.7 123.5 41.6 36.1 3.2 19.1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 2 4 2 5 1 1 0 1 0 0 2 4 22 1987 1 4 6 1 2 0 1 1 0 1 0 4 21 1988 9 5 4 4 1 0 1 2 2 1 1 3 33 1989 6 2 4 0 0 2 0 0 0 1 0 3 18 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 3 2 2 3 4 0 1 0 0 1 0 1 17 1992 2 4 5 4 5 2 0 1 1 0 2 3 29 1993 1 3 3 1 *** 4 0 *** 0 *** 1 2 *** 1994 3 3 2 2 1 0 0 0 0 0 7 2 20 1995 1 0 4 7 1 1 0 0 0 0 0 0 14 1996 2 1 8 3 0 0 0 0 0 0 0 1 15 1997 0 1 0 0 1 0 0 0 0 3 2 3 10 1998 6 5 4 4 5 0 1 0 0 1 0 1 27 1999 4 1 2 2 0 0 0 0 1 2 3 0 15 2000 5 3 0 0 0 0 0 0 1 3 3 6 21 2001 2 3 5 3 2 1 1 2 *** 4 4 7 *** 2002 5 3 6 9 4 2 1 1 1 0 3 9 44 2003 *** 6 4 10 6 3 1 1 1 2 4 2 *** MEAN 3 3 4 3 2 1 0 1 0 1 2 3 23 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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 1986 2 4 2 5 1 1 0 1 0 0 2 4 22 1987 1 4 6 1 2 0 1 0 0 1 0 4 20 1988 6 3 4 4 1 0 1 2 2 1 1 3 28 1989 6 2 4 0 0 2 0 0 0 1 0 3 18 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 3 2 2 3 4 0 1 0 0 1 0 1 17 1992 2 4 5 4 5 2 0 1 1 0 2 3 29 1993 1 3 3 1 *** 4 0 *** 0 *** 1 2 *** 1994 3 3 2 2 1 0 0 0 0 0 7 2 20 1995 1 0 4 7 1 1 0 0 0 0 0 0 14 1996 2 1 8 3 0 0 0 0 0 0 0 1 15 1997 0 1 0 0 1 0 0 0 0 3 2 3 10 1998 6 4 4 4 5 0 1 0 0 1 0 1 26 1999 4 1 2 2 0 0 0 0 1 2 3 0 15 2000 5 3 0 0 0 0 0 0 1 3 3 6 21 2001 1 3 3 3 2 1 1 2 *** 4 4 7 *** 2002 5 3 6 9 4 2 1 1 1 0 3 9 44 2003 *** 6 4 10 6 3 1 1 1 2 4 2 *** MEAN 3 3 3 3 2 1 0 1 0 1 2 3 22 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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 1986 0 0 1 1 1 0 0 0 0 0 0 0 3 1987 0 1 0 0 1 0 0 0 0 1 0 2 5 1988 0 0 0 1 0 0 0 0 0 0 0 1 2 1989 1 1 1 0 0 0 0 0 0 0 0 2 5 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 0 0 0 1 1 0 0 0 0 0 0 0 2 1992 1 0 1 4 2 0 0 0 0 0 0 1 9 1993 0 1 0 0 *** 1 0 *** 0 *** 0 0 *** 1994 0 1 1 0 0 0 0 0 0 0 1 0 3 1995 1 0 1 2 0 0 0 0 0 0 0 0 4 1996 0 1 0 0 0 0 0 0 0 0 0 0 1 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 1 2 1 0 0 0 0 0 0 0 4 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 2 1 0 0 0 0 0 0 0 0 0 1 4 2001 0 1 0 0 0 0 0 0 *** 0 1 0 *** 2002 1 0 1 3 0 0 0 0 0 0 0 0 5 2003 *** 0 2 2 0 0 0 0 0 0 0 1 *** MEAN 0 0 1 1 0 0 0 0 0 0 0 0 2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 77 67 61 79 58 53 57 66 68 70 68 69 66 1987 73 73 76 65 65 59 70 71 73 74 70 70 70 1988 69 74 72 65 66 58 59 59 65 64 64 64 65 1989 50 48 58 55 42 55 56 52 76 57 58 62 56 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 42 37 45 46 50 50 50 53 51 53 48 48 48 1992 50 42 53 61 44 45 53 53 48 50 59 49 51 1993 59 59 63 47 *** 50 53 *** 46 *** 63 66 *** 1994 67 66 68 54 54 57 53 51 57 60 69 66 60 1995 59 60 54 56 61 58 47 52 66 67 60 49 57 1996 55 63 65 64 69 73 78 64 59 78 60 57 65 1997 62 64 63 61 68 32 27 59 37 42 51 69 53 1998 76 78 66 58 56 50 36 38 29 38 57 70 54 1999 74 70 69 59 44 39 39 42 42 59 75 74 57 2000 72 70 56 43 44 43 36 34 62 65 66 76 56 2001 81 74 70 57 54 39 40 45 *** 58 69 84 *** 2002 82 77 66 72 56 50 50 53 61 63 73 75 65 2003 *** 76 72 69 68 64 60 55 56 61 70 78 *** MEAN 66 65 63 59 56 51 51 53 56 60 64 66 59 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 81 62 50 51 33 43 43 51 44 45 52 66 52 1987 71 63 65 42 37 35 38 54 69 58 42 58 53 1988 69 65 38 37 33 41 35 34 38 36 36 50 43 1989 63 51 30 20 20 33 43 44 39 35 *** 50 *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 42 42 37 35 36 45 50 48 54 52 45 46 44 1992 51 46 35 41 42 38 44 53 55 44 46 54 46 1993 57 42 42 42 *** 50 58 *** 47 *** 50 48 *** 1994 42 46 43 39 50 50 37 31 32 35 45 57 42 1995 55 42 48 52 52 28 25 18 23 25 21 47 36 1996 37 39 46 31 31 35 43 47 50 56 22 45 40 1997 43 48 48 43 52 12 13 46 12 17 16 38 32 1998 45 48 42 34 34 29 22 17 17 26 30 46 33 1999 54 46 47 32 26 16 16 21 22 30 41 44 33 2000 41 43 30 23 16 15 14 14 23 29 45 67 30 2001 68 54 49 29 24 17 19 18 *** 30 40 65 *** 2002 64 46 31 44 30 23 22 25 24 30 43 62 37 2003 *** 51 50 49 42 34 34 29 32 33 46 58 *** MEAN 55 49 43 38 35 32 33 34 36 36 39 53 40 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 82 64 53 55 43 42 51 63 52 46 59 69 57 1987 74 63 69 49 48 45 42 52 59 60 50 65 56 1988 71 66 44 40 37 41 39 35 38 38 37 57 45 1989 53 58 37 24 20 34 58 51 57 43 49 57 45 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 46 43 41 40 48 49 55 59 57 51 47 49 49 1992 53 54 54 52 45 42 47 52 55 50 52 63 52 1993 61 62 60 47 *** 53 56 *** 45 *** 66 63 *** 1994 70 62 51 46 55 52 50 46 43 46 54 53 52 1995 61 53 54 60 56 54 46 48 65 73 76 80 61 1996 78 79 72 67 74 79 85 71 61 83 75 75 75 1997 81 77 56 54 51 24 19 67 12 35 41 70 49 1998 66 68 60 50 51 43 31 33 25 34 40 62 47 1999 64 59 57 51 28 31 33 34 34 41 56 59 46 2000 59 54 51 35 38 33 28 23 45 54 57 73 46 2001 78 67 64 39 37 31 37 34 *** 47 50 74 *** 2002 75 56 41 49 37 32 33 36 31 42 52 71 46 2003 *** 60 55 52 50 44 47 42 40 39 51 68 *** MEAN 67 61 54 48 45 43 45 47 45 49 54 65 52 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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 1986 25 11 14 0 0 0 0 0 0 0 10 15 75 1987 26 13 2 0 0 0 0 0 0 0 3 20 64 1988 19 15 1 1 0 0 0 0 0 0 11 20 67 1989 31 24 2 0 0 0 0 0 0 0 13 20 90 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 28 21 12 0 0 0 0 0 0 0 5 28 94 1992 26 29 19 0 0 0 0 0 0 0 20 31 125 1993 30 28 4 0 *** 0 0 *** 0 *** 19 19 *** 1994 29 22 0 0 0 0 0 0 0 0 0 7 58 1995 24 21 3 0 0 0 0 0 0 3 22 31 104 1996 28 14 8 3 0 0 0 0 0 0 23 24 100 1997 22 24 0 0 0 0 0 0 0 0 8 4 58 1998 6 0 1 0 0 0 0 0 0 0 0 4 11 1999 19 0 0 0 0 0 0 0 0 0 1 18 38 2000 20 11 0 0 0 0 0 0 0 0 1 11 43 2001 12 8 1 0 0 0 0 0 *** 0 3 7 *** 2002 15 7 2 0 0 0 0 0 0 0 7 16 47 2003 *** 5 5 0 0 0 0 0 0 0 13 19 *** MEAN 23 15 4 0 0 0 0 0 0 0 9 17 68 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 0 0 0 0 0 0 1 0 0 0 0 0 1 1988 0 0 0 0 0 1 3 2 0 0 0 0 6 1989 0 0 0 0 0 0 0 0 2 0 0 0 2 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 *** 0 0 *** 0 *** 0 0 *** 1994 0 0 0 0 0 0 1 1 0 0 0 0 2 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 0 0 4 1 1 0 0 0 6 1997 0 0 0 0 0 3 12 1 0 0 0 0 16 1998 0 0 0 0 0 0 3 1 0 0 0 0 4 1999 0 0 0 0 0 17 5 0 0 0 0 0 22 2000 0 0 0 0 0 0 0 3 0 0 0 0 3 2001 0 0 0 0 1 8 12 1 *** 0 0 0 *** 2002 0 0 0 0 0 1 6 6 0 0 0 0 13 2003 *** 0 0 0 0 0 11 4 0 0 0 0 *** MEAN 0 0 0 0 0 2 3 1 0 0 0 0 6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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 1986 0 0 0 0 0 0 0 0 0 0 0 1 1 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 *** 0 0 0 0 0 0 0 0 0 0 *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 *** 0 0 *** 0 *** 0 0 *** 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 0 0 0 0 0 0 *** 0 0 0 *** 2002 6 0 0 0 0 0 0 0 0 0 0 0 6 2003 *** 0 0 0 0 0 0 0 0 0 0 3 *** MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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 1986 0 0 0 0 15 25 30 24 23 3 0 0 120 1987 0 0 0 3 18 28 31 30 12 1 0 0 123 1988 0 0 0 8 12 29 29 31 26 3 0 0 138 1989 0 *** 0 1 10 26 28 30 11 9 0 0 *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 0 0 0 4 5 28 30 29 30 14 0 0 140 1992 0 0 0 0 0 18 30 31 30 1 0 0 110 1993 0 0 0 0 *** 30 31 *** 30 *** 0 0 *** 1994 0 0 0 10 29 27 31 30 9 0 0 0 136 1995 0 0 0 0 19 30 31 29 10 0 0 0 119 1996 0 0 0 0 28 30 30 31 30 0 0 0 149 1997 0 0 0 0 22 29 29 30 9 6 0 0 125 1998 0 0 0 10 22 29 31 31 29 2 0 0 154 1999 0 0 0 7 31 30 31 31 20 0 0 0 150 2000 0 0 0 3 24 30 31 31 20 0 0 0 139 2001 0 0 0 7 20 26 30 20 *** 1 0 0 *** 2002 0 0 0 1 11 20 30 29 27 9 0 0 127 2003 *** 0 0 2 4 18 30 29 14 0 0 0 *** MEAN 0 0 0 3 17 27 30 29 21 3 0 0 130 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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 1986 0 0 0 0 0 0 1 0 0 0 0 0 1 1987 0 0 0 0 0 0 2 0 0 0 0 0 2 1988 0 0 0 0 0 1 1 1 0 0 0 0 3 1989 0 *** 0 0 0 0 3 1 0 0 0 0 *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 0 0 0 0 0 1 1 1 0 0 0 0 3 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 *** 0 0 *** 0 *** 0 0 *** 1994 0 0 0 0 0 0 2 3 0 0 0 0 5 1995 0 0 0 0 0 1 12 3 0 0 0 0 16 1996 0 0 0 0 0 4 4 1 0 0 0 0 9 1997 0 0 0 0 0 0 11 7 0 0 0 0 18 1998 0 0 0 0 0 1 3 10 0 0 0 0 14 1999 0 0 0 0 2 7 6 0 0 0 0 0 15 2000 0 0 0 0 1 1 0 0 0 0 0 0 2 2001 0 0 0 0 0 4 1 1 *** 0 0 0 *** 2002 0 0 0 0 0 1 2 5 0 0 0 0 8 2003 *** 0 0 0 0 0 1 0 0 0 0 0 *** MEAN 0 0 0 0 0 1 3 2 0 0 0 0 6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 *** 0 0 0 0 0 0 0 0 0 0 *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 *** 0 0 *** 0 *** 0 0 *** 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 6 0 0 0 0 0 6 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 0 0 0 0 0 0 *** 0 0 0 *** 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 *** 0 0 0 0 0 0 0 0 0 0 0 *** MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 24 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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 -------------- 1986 27 22 24 0 0 0 0 0 0 3 22 24 122 10 17 3 31 1987 30 23 11 2 0 0 0 0 0 4 16 28 114 10 12 4 8 1988 31 24 11 6 0 0 0 0 0 1 16 29 118 10 22 4 7 1989 31 28 14 2 0 0 0 0 0 1 19 26 121 10 27 4 4 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1991 30 28 23 0 0 0 0 0 0 0 7 30 118 11 24 3 25 1992 29 29 22 3 0 0 0 0 0 0 25 31 139 11 6 4 24 1993 30 28 9 0 *** 0 0 *** 0 *** 20 29 *** 11 11 3 18 1994 30 26 13 0 0 0 0 0 0 0 1 20 90 11 29 3 28 1995 31 27 8 0 0 0 0 0 0 8 27 31 132 10 19 3 21 1996 31 21 22 8 0 0 0 0 0 0 28 31 141 11 1 4 12 1997 30 27 0 0 0 0 0 0 0 0 11 17 85 11 20 2 28 1998 18 10 3 0 0 0 0 0 0 0 0 7 38 12 25 3 3 1999 26 1 0 0 0 0 0 0 0 0 12 23 62 11 9 2 8 2000 28 15 2 0 0 0 0 0 0 0 21 27 93 11 9 3 7 2001 26 12 7 0 0 0 0 0 *** 0 12 18 *** 11 3 3 21 2002 22 19 7 0 0 0 0 0 0 0 13 23 84 11 9 3 12 2003 *** 22 10 2 1 0 0 0 0 0 15 31 *** 11 8 5 2 MEAN 28 21 11 1 0 0 0 0 0 1 16 25 103 10 12 5 2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 1.0 4.8 5.7 14.6 21.5 24.5 27.2 24.7 21.9 17.3 8.8 1.1 14.4 1987 3.8 6.3 9.0 14.6 22.2 25.5 26.9 27.2 21.4 12.7 10.5 4.9 15.4 1988 2.2 3.9 9.3 15.6 20.3 26.8 27.4 27.7 24.9 18.5 10.7 5.3 16.0 1989 0.2 1.1 10.7 16.5 20.5 26.6 28.8 29.4 19.7 19.3 ****** 5.1 ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 1.4 3.0 5.5 14.9 18.3 25.2 27.2 28.3 26.3 21.4 10.1 3.0 15.4 1992 1.7 0.1 5.2 10.2 13.3 22.4 28.2 26.9 27.2 17.9 6.3 0.5 13.3 1993 -0.4 2.8 6.5 17.2 ****** 24.0 27.5 ****** 26.3 ****** 5.3 4.1 ****** 1994 3.5 3.9 9.9 18.1 24.1 25.3 28.8 26.9 19.9 14.9 11.2 3.8 15.9 1995 3.3 5.4 9.9 15.7 23.1 25.1 28.8 27.2 21.1 11.8 5.8 3.6 15.1 1996 4.5 6.5 6.0 13.0 24.3 27.2 27.9 28.2 27.3 12.2 5.7 5.9 15.7 1997 6.6 5.7 9.6 14.8 24.7 28.1 32.0 30.7 22.4 18.6 11.6 6.6 17.6 1998 4.2 5.8 9.6 18.7 21.4 27.2 29.8 30.7 26.6 19.0 10.4 5.4 17.4 1999 3.7 6.8 9.6 18.7 28.9 31.9 30.6 26.8 23.9 16.4 9.3 6.5 17.8 2000 4.6 6.4 10.2 19.7 25.9 30.2 31.5 29.1 23.7 18.1 6.9 5.2 17.6 2001 3.2 6.3 12.0 20.0 24.8 27.3 27.8 28.0 ****** 16.6 9.1 4.7 ****** 2002 0.7 6.1 11.6 14.7 20.7 25.4 27.9 28.4 24.3 19.6 9.8 1.0 15.9 2003 ****** 5.4 8.5 15.3 19.2 24.2 28.6 26.6 22.7 18.7 8.5 2.3 ****** MEAN 2.8 4.7 8.8 16.0 22.1 26.3 28.6 27.9 23.7 17.1 8.7 4.0 15.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 -0.7 -1.9 -3.6 6.6 7.6 11.3 14.7 15.8 11.7 6.9 0.7 -4.6 5.4 1987 -0.9 0.2 3.4 3.7 9.7 12.4 14.3 17.8 14.5 5.6 0.7 -1.7 6.6 1988 -2.9 -1.8 -1.4 3.5 6.3 13.5 13.2 12.8 11.6 5.6 -1.9 -2.9 4.6 1989 -8.1 -8.0 -3.0 -2.2 -1.1 10.3 17.5 17.1 9.0 6.3 ****** -3.3 ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 -10.2 -10.1 -7.3 0.9 5.7 13.1 16.2 17.8 16.2 10.9 -1.3 -7.3 3.7 1992 -7.8 -10.1 -6.1 0.1 0.8 8.5 15.9 16.3 16.6 6.7 -3.1 -8.0 2.5 1993 -7.7 -5.9 -2.5 4.6 ****** 13.1 17.8 ****** 13.7 ****** -2.5 -3.7 ****** 1994 -4.1 -4.0 0.6 5.6 13.7 14.8 15.7 12.1 6.0 2.9 1.9 -4.1 5.1 1995 -4.7 -4.5 -0.0 6.4 13.7 11.5 12.4 9.8 8.4 1.1 -5.8 -4.6 3.6 1996 -4.6 -1.5 -1.7 2.4 13.7 18.0 20.7 19.3 17.6 7.1 -5.7 -2.2 6.9 1997 -0.8 -1.3 0.7 4.6 15.2 3.0 4.2 20.8 -4.0 -0.0 -4.7 -1.5 3.0 1998 -2.7 -0.7 0.9 6.6 8.9 12.1 9.5 10.0 3.3 1.9 -2.6 -2.2 3.8 1999 -2.7 -1.0 1.5 6.3 9.9 10.2 9.3 8.2 5.5 3.0 0.6 -1.5 4.1 2000 -3.8 -2.4 -1.8 2.5 6.6 9.1 8.2 4.7 9.0 6.5 -1.7 0.4 3.1 2001 -0.9 -0.1 4.3 5.6 8.0 5.9 8.1 8.4 ****** 3.8 -0.8 0.1 ****** 2002 -3.8 -1.9 -1.0 4.4 5.6 7.3 9.4 11.1 7.4 6.1 0.7 -4.1 3.4 2003 ****** -1.7 0.3 5.8 8.7 11.1 15.4 11.9 8.6 5.1 -0.5 -3.3 ****** MEAN -4.2 -3.3 -1.0 4.0 8.3 10.9 13.1 13.4 9.7 5.0 -1.6 -3.2 4.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 4.34 3.94 3.53 7.04 7.80 10.00 12.43 13.48 10.07 7.24 4.72 3.30 7.32 1987 4.22 4.56 5.81 5.87 9.21 10.39 11.85 14.83 12.30 6.80 4.70 3.96 7.88 1988 3.60 3.86 3.95 5.89 7.17 11.36 10.84 10.68 9.89 6.66 3.86 3.59 6.78 1989 2.60 2.56 3.50 3.72 4.18 9.72 14.64 14.45 8.41 7.11 ****** 3.51 ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 2.16 2.27 2.62 4.79 6.64 11.51 14.28 15.34 14.29 9.68 4.13 2.74 7.54 1992 2.58 2.22 2.89 4.41 4.70 8.19 13.40 14.23 14.76 7.32 3.70 2.69 6.76 1993 2.60 2.92 3.62 6.31 ****** 11.34 15.44 ****** 12.01 ****** 3.79 3.39 ****** 1994 3.27 3.32 4.57 6.91 11.85 12.48 12.89 10.36 6.95 5.38 5.04 3.41 7.20 1995 3.30 3.18 4.45 7.03 11.61 9.90 10.32 9.29 8.41 5.16 3.16 3.58 6.62 1996 3.38 4.06 3.94 5.41 11.77 15.27 17.91 16.40 14.71 7.19 3.17 3.99 8.93 1997 4.47 4.20 4.62 6.15 12.57 5.69 6.08 18.07 3.35 4.40 3.24 4.00 6.40 1998 3.55 4.14 4.67 7.21 8.41 10.00 8.47 8.64 5.66 4.97 3.57 3.66 6.08 1999 3.56 3.98 4.78 6.92 8.86 8.81 8.41 7.69 6.52 5.39 4.54 3.92 6.11 2000 3.32 3.65 3.81 5.19 7.12 8.30 7.77 6.21 8.31 6.88 3.86 4.50 5.74 2001 4.11 4.35 6.05 6.48 7.63 6.67 7.75 7.86 ****** 5.81 4.15 4.43 ****** 2002 3.45 3.78 4.17 6.03 6.46 7.33 8.47 9.54 7.38 6.79 4.64 3.27 5.94 2003 ****** 3.84 4.51 6.66 8.14 9.48 12.49 9.90 8.16 6.33 4.25 3.46 ****** MEAN 3.41 3.58 4.20 6.00 8.38 9.79 11.38 11.69 9.45 6.44 4.03 3.61 6.83 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 6.21 5.64 5.06 10.07 11.16 14.27 17.68 19.13 14.37 10.37 6.76 4.72 10.45 1987 6.04 6.54 8.31 8.41 13.13 14.85 16.89 21.04 17.47 9.72 6.74 5.68 11.23 1988 5.16 5.53 5.66 8.43 10.27 16.21 15.49 15.25 14.13 9.54 5.54 5.15 9.70 1989 3.72 3.67 5.03 5.36 6.01 13.88 20.79 20.52 12.02 10.19 ****** 5.03 ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 3.10 3.25 3.76 6.87 9.52 16.39 20.25 21.73 20.25 13.82 5.93 3.94 10.73 1992 3.71 3.18 4.15 6.33 6.75 11.72 19.06 20.18 20.91 10.48 5.30 3.86 9.64 1993 3.72 4.19 5.20 9.04 ****** 16.16 21.86 ****** 17.09 ****** 5.43 4.86 ****** 1994 4.68 4.75 6.55 9.90 16.86 17.75 18.37 14.79 9.96 7.72 7.22 4.89 10.29 1995 4.72 4.57 6.39 10.06 16.52 14.15 14.76 13.28 12.02 7.38 4.53 5.13 9.46 1996 4.85 5.82 5.65 7.76 16.75 21.63 25.28 23.22 20.88 10.28 4.54 5.72 12.70 1997 6.40 6.01 6.63 8.81 17.89 8.20 8.76 25.53 4.83 6.34 4.66 5.73 9.15 1998 5.09 5.93 6.69 10.33 12.04 14.31 12.16 12.40 8.15 7.15 5.13 5.25 8.72 1999 5.10 5.71 6.85 9.91 12.71 12.65 12.07 11.05 9.37 7.73 6.50 5.62 8.77 2000 4.77 5.23 5.47 7.47 10.22 11.92 11.17 8.94 11.91 9.86 5.54 6.44 8.24 2001 5.89 6.24 8.66 9.30 10.95 9.59 11.13 11.29 ****** 8.34 5.95 6.33 ****** 2002 4.94 5.43 5.98 8.63 9.27 10.52 12.15 13.65 10.58 9.73 6.65 4.68 8.52 2003 ****** 5.51 6.46 9.53 11.65 13.56 17.81 14.17 11.69 9.08 6.09 4.96 ****** MEAN 4.88 5.13 6.03 8.60 11.98 13.99 16.22 16.64 13.48 9.23 5.78 5.18 9.76 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 1.31 3.68 4.87 7.16 15.81 17.85 20.17 13.92 13.97 11.02 5.79 2.16 9.81 1987 2.37 3.53 3.75 9.54 15.47 19.63 20.47 16.42 9.36 6.07 6.87 3.44 9.74 1988 2.23 2.88 6.62 10.90 14.93 20.75 22.44 24.11 19.82 13.42 8.73 4.31 12.60 1989 2.81 3.37 8.77 14.79 19.93 22.90 20.87 22.82 12.89 14.62 ****** 4.36 ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 4.18 4.78 5.81 11.19 12.88 18.46 19.09 20.02 16.80 12.93 6.90 4.47 11.46 1992 3.57 3.61 5.24 6.42 9.10 17.14 21.76 18.06 18.09 11.75 5.22 3.08 10.25 1993 2.74 3.91 4.89 11.83 ****** 15.65 17.02 ****** 19.93 ****** 4.03 3.82 ****** 1994 3.71 3.89 6.28 12.47 14.97 16.18 23.08 21.97 14.64 9.89 6.53 3.60 11.44 1995 3.45 4.80 6.26 8.33 13.09 19.94 27.28 24.44 14.00 7.25 5.24 3.62 11.48 1996 4.08 4.26 3.94 8.72 15.95 16.50 13.92 16.65 16.91 4.28 5.16 4.21 9.55 1997 4.15 3.73 5.58 8.33 14.26 30.77 40.05 20.51 23.36 16.37 10.30 4.49 15.16 1998 3.43 3.64 6.07 13.46 16.05 23.08 31.12 33.26 28.15 15.71 7.72 3.95 15.47 1999 3.16 4.29 5.30 12.64 28.88 35.85 33.49 25.48 21.76 11.85 5.83 4.65 16.10 2000 4.19 4.85 7.24 16.38 25.20 32.73 36.15 32.95 18.91 11.65 4.78 2.66 16.47 2001 2.14 3.75 6.52 15.34 22.36 28.71 27.40 28.09 ****** 12.03 6.56 2.53 ****** 2002 2.26 4.61 9.02 9.19 16.95 23.85 27.14 26.91 21.81 14.70 6.19 2.19 13.73 2003 ****** 3.75 5.31 9.39 11.88 18.12 22.58 21.59 17.40 13.54 5.75 2.67 ****** MEAN 3.11 3.96 5.97 10.95 16.73 22.24 24.94 22.95 17.99 11.69 6.35 3.54 12.54 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 82 64 54 62 45 46 50 60 55 53 60 68 58 1987 73 66 70 52 50 47 50 59 67 64 54 64 60 1988 70 68 52 47 45 47 44 43 47 46 46 57 51 1989 55 52 41 33 27 41 52 49 57 45 *** 57 *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 43 41 41 41 45 48 52 53 54 52 47 48 47 1992 51 47 47 51 43 41 48 53 53 48 52 55 49 1993 59 55 55 45 *** 51 56 *** 46 *** 59 59 *** 1994 60 58 54 46 53 53 47 43 44 47 56 58 52 1995 59 52 52 56 57 47 39 39 51 55 52 58 51 1996 57 61 61 54 58 62 69 61 57 72 52 59 60 1997 62 63 55 53 57 22 20 58 20 31 36 59 45 1998 62 65 56 47 47 41 30 30 24 33 42 59 45 1999 64 59 58 47 33 28 29 32 33 44 57 59 45 2000 57 56 46 34 33 30 26 24 43 49 56 72 44 2001 75 65 61 42 39 29 32 32 *** 45 53 74 *** 2002 74 60 46 55 41 35 35 38 39 45 56 70 50 2003 *** 62 59 57 53 47 47 42 43 44 56 68 *** MEAN 63 58 53 48 45 42 43 45 46 48 52 61 50 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 89 77 68 80 61 55 62 71 70 71 75 80 72 1987 81 77 80 69 70 61 71 73 77 76 72 76 74 1988 78 80 73 65 67 61 60 60 66 65 66 68 67 1989 66 63 59 56 42 57 64 58 78 58 *** 69 *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 54 52 50 49 54 55 57 60 59 57 56 58 55 1992 60 57 61 62 52 47 54 57 58 53 62 67 58 1993 69 68 67 54 *** 55 60 *** 52 *** 70 72 *** 1994 75 71 70 58 61 60 56 56 58 62 72 72 64 1995 70 66 62 65 66 60 52 57 72 76 79 81 67 1996 81 81 77 72 77 82 86 73 66 85 78 76 78 1997 82 81 67 65 69 33 28 69 37 42 51 75 58 1998 76 78 66 58 57 50 36 39 30 38 58 70 55 1999 75 70 69 59 44 39 41 42 44 59 75 75 58 2000 72 71 57 44 45 43 36 34 62 65 67 79 56 2001 83 74 71 57 55 40 41 45 *** 60 69 85 *** 2002 84 77 68 73 57 50 51 53 61 64 73 77 66 2003 *** 77 72 70 68 64 60 55 57 61 70 79 *** MEAN 75 72 67 62 59 54 54 56 59 62 68 74 64 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 74 52 39 47 31 37 38 47 41 38 47 54 45 1987 64 57 59 37 33 33 33 49 56 52 39 53 47 1988 61 58 37 36 29 36 32 31 32 33 32 47 39 1989 43 43 28 18 16 29 41 39 38 34 *** 45 *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 34 29 32 32 35 41 46 47 50 46 38 38 39 1992 42 37 32 38 36 36 43 49 47 43 42 43 41 1993 47 42 41 37 *** 46 51 *** 40 *** 47 44 *** 1994 42 44 40 35 46 46 37 29 30 33 42 45 39 1995 45 37 41 47 48 28 24 17 22 25 21 40 33 1996 33 38 44 30 31 35 43 46 47 55 22 40 39 1997 41 45 43 40 46 12 11 45 10 17 16 38 30 1998 45 48 42 34 34 29 22 17 16 26 30 46 32 1999 54 46 47 32 22 16 16 21 21 30 41 44 33 2000 41 42 30 23 16 15 14 14 23 29 44 64 30 2001 68 54 49 29 24 17 19 18 *** 30 40 63 *** 2002 63 46 30 42 30 22 22 24 22 30 42 61 36 2003 *** 49 48 46 41 33 33 29 31 32 44 57 *** MEAN 50 45 40 35 32 30 31 33 33 35 37 48 37 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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 1986 0 2 2 1 1 0 0 1 0 0 2 3 12 1987 0 3 3 1 1 0 0 0 0 1 0 2 11 1988 0 0 0 1 1 0 0 1 2 0 0 1 6 1989 4 2 4 0 0 0 0 0 0 1 0 3 14 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 1 2 1 2 2 0 0 0 0 0 0 1 9 1992 2 3 2 4 4 1 0 0 0 0 0 2 18 1993 1 3 2 0 *** 2 0 *** 0 *** 0 0 *** 1994 2 2 2 1 1 0 0 0 0 0 2 0 10 1995 1 0 3 4 0 0 0 0 0 0 0 0 8 1996 0 1 4 2 0 0 0 0 0 0 0 0 7 1997 0 0 0 0 0 0 0 0 0 0 2 0 2 1998 2 0 2 3 2 0 0 0 0 0 0 0 9 1999 1 0 0 0 0 0 0 0 1 1 0 0 3 2000 2 1 0 0 0 0 0 0 0 1 0 1 5 2001 0 1 1 0 0 0 0 0 *** 0 1 3 *** 2002 2 0 1 4 2 0 0 0 0 0 0 0 9 2003 *** 2 2 7 0 0 0 0 0 1 0 1 *** MEAN 1 1 2 2 1 0 0 0 0 0 0 1 8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. HIGHEST AND LOWEST LIMITS FOR 18 YEARS DURING 1986-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 7.4 8.0 14.0 19.2 28.2 30.0 32.2 30.0 29.0 20.2 16.2 8.0 1 YEAR - DAY 2002- 8 1995-26 1995-15 2000- 3 1997-30 1988-30 1997-13 1989- 5 1996- 3 1991- 1 2003- 1 1999- 1 LOW. DRY 03 -18.2 -8.2 -7.0 -2.0 4.0 10.0 11.0 11.2 6.0 -1.4 -7.0 -16.2 2 YEAR - DAY 2002-14 1994- 7 2003- 3 1996- 6 1992- 3 2003- 7 1987- 5 1986-12 1988-25 1987-29 2001-21 2002- 5 HIG. WET 03 6.2 5.0 9.3 16.0 23.0 22.0 25.4 24.0 22.0 14.4 11.0 6.2 3 YEAR - DAY 2002- 8 1986-28 1987- 2 1988-27 1997-30 1996-16 1996-10 1996-30 1996- 7 1986- 3 2003- 1 2001-22 LOW. WET 03 -18.4 -10.2 -8.2 -4.0 2.0 8.0 8.0 8.0 4.0 -3.0 -8.2 -16.4 4 YEAR - DAY 2002-14 1991-16 1992-10 1996- 6 1992- 1 1991- 7 1987- 5 2000- 8 1988-25 1995-25 1992-22 2002- 5 HIG. DRY 09 16.2 17.0 26.2 34.2 39.4 40.4 45.0 40.2 38.2 32.2 24.4 20.2 5 YEAR - DAY 1997-26 1986-28 2002-27 1998-16 1999-20 1999-12 1995- 7 1988-12 1988-25 1989- 1 2003- 2 1988- 7 LOW. DRY 09 -5.0 2.0 1.2 7.8 9.0 19.0 21.2 23.2 11.0 9.4 5.2 -2.4 6 YEAR - DAY 1986-24 1988- 8 1986-15 2003- 1 2003- 1 1987- 8 1986-20 1986- 5 1989-19 1996-21 2003-23 2003-16 HIG. WET 09 12.0 11.4 18.0 24.0 30.0 30.0 30.4 34.0 31.2 25.2 16.0 12.0 7 YEAR - DAY 1997-26 1987-25 1987- 7 1994-25 1987-22 1991-29 1986- 4 1994-12 1988-13 1987- 7 1992- 1 1988- 7 LOW. WET 09 -5.4 1.0 -3.0 3.0 6.0 12.0 14.0 14.0 7.4 2.0 2.0 -4.0 8 YEAR - DAY 1986-24 1986- 3 1986-15 1996- 5 1992- 3 1989- 9 1997-23 1995-20 1989-19 1995-19 1995-11 1986-12 HIG. DRY 15 14.0 17.0 23.0 29.4 36.2 37.0 38.0 39.0 32.4 28.0 22.0 15.0 9 YEAR - DAY 1997- 7 1986-27 1995-24 1998-16 1999-25 2001- 6 1997-14 1991-27 1987- 7 1989- 1 1988- 9 1988- 7 LOW. DRY 15 -9.6 -5.2 -4.4 4.4 7.0 15.0 20.0 18.2 9.0 5.2 3.0 -6.0 10 YEAR - DAY 2002-13 1991-16 1991-10 2003-18 1992- 3 2003- 6 1986-21 1995-13 1989-19 1995-25 1993-20 2003-17 HIG. WET 15 13.0 11.0 16.8 20.2 28.4 29.0 30.0 30.0 28.0 21.0 14.0 12.0 11 YEAR - DAY 1997-26 1997-23 2001-26 1998-16 2000-28 1996- 3 1996-28 1997-21 1996- 7 1991- 3 2003- 1 1995-30 LOW. WET 15 -9.6 -7.2 -6.0 2.0 3.2 9.0 13.0 12.0 7.0 4.2 0.0 -7.0 12 YEAR - DAY 2002-13 1991-17 1991- 9 2003-18 1992- 3 1997- 1 1997-24 1995-13 1989-19 1995-25 2001-22 1992-23 HIG. MIN. 6.4 6.4 10.4 16.4 21.0 24.0 25.0 25.0 21.2 15.0 11.4 6.2 13 YEAR - DAY 2002- 8 2002-14 2002-29 2002-19 2001-17 1999-20 1997-14 2000-25 1996-16 2001- 2 2003- 1 1999- 1 LOW. MIN. -18.2 -12.2 -11.0 -5.0 -1.0 6.2 7.0 7.2 2.0 -5.4 -9.2 -18.4 14 YEAR - DAY 2002-14 1989- 9 2003- 3 1996- 6 2003- 2 1991- 3 1987- 5 1995-20 2003-28 1995-25 2003-24 2002- 5 HIG. MAX. 18.2 20.4 29.0 36.0 40.6 42.2 48.0 42.0 39.0 38.4 27.2 22.4 15 YEAR - DAY 1997- 7 1986-27 2002-27 1998-16 1999-20 1996-29 1995- 7 1995- 4 1988-13 1989- 1 1997- 1 1989- 1 LOW. MAX. -2.0 1.2 1.2 9.2 11.2 23.0 27.0 25.0 14.0 11.2 6.2 -1.0 16 YEAR - DAY 2002-13 1986- 2 1986-15 2003-18 2003- 1 2001-11 2002- 1 1986- 5 1989-22 1987-27 2003-23 1986-12 HIG. PPTN 14.5 19.2 26.1 36.0 52.2 11.0 3.0 6.2 9.0 19.2 13.2 15.2 17 YEAR - DAY 2000-29 1993- 3 2003- 8 1998- 6 1992- 6 1993- 4 1987-26 1986-23 1988- 1 1987- 9 1994-26 1987-28 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 18 YEARS DURING 1986-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 20.2 20.2 19.0 22.2 22.0 25.0 22.2 21.2 32.2 22.2 20.6 21.4 18 YEAR - DAY 1996- 1 1997- 9 2002- 9 1991-30 2003-12 1995-10 1991-20 1991-12 1988-25 1989- 3 1987- 2 1995-26 DRY 15 - DRY 09 14.4 15.2 14.2 12.8 15.2 16.2 16.8 11.2 14.8 11.4 10.0 13.2 19 YEAR - DAY 1991-13 1992-23 1991-11 1996-28 1996-24 1991-18 1995-25 1988-20 1996-13 1987- 8 1994-28 1992-23 DRY 15 - DRY 03 17.2 16.4 16.0 17.6 19.8 16.6 16.0 20.8 20.2 17.4 17.4 17.2 20 YEAR - DAY 1996- 1 1997- 9 2002- 9 1998-23 1987- 8 2002-26 1987- 5 1991-27 1988-25 2001-15 1997-27 1995-11 WET 09 - WET 03 16.0 15.4 13.8 15.0 18.0 16.2 19.0 20.0 22.2 17.2 17.0 17.4 21 YEAR - DAY 1996- 1 1997- 9 1987- 7 1994-25 1987-30 1994- 5 1991-15 1994-12 1988-13 1987- 7 1992-23 2002- 5 WET 15 - WET 09 12.4 12.2 11.0 10.8 11.0 11.2 10.4 14.2 15.2 10.2 6.2 13.0 22 YEAR - DAY 1991-13 1992-28 1991-11 1994-14 1987-22 1991-16 1999-13 1988- 6 1996-13 1987- 7 1991-14 1992-23 WET 15 - WET 03 14.0 13.4 12.2 14.6 14.2 15.0 14.0 15.4 14.6 14.0 14.0 17.4 23 YEAR - DAY 1997-26 1997- 9 1986- 4 1998-23 1998-26 1996- 3 1999-13 1986-12 1986-25 1988- 5 1986-14 1995-11 DAY BY DAY DRY 03 14.0 10.4 12.6 10.6 9.0 12.8 10.0 9.2 12.2 11.0 13.2 14.2 24 YEAR - DAY 2002-13 2002-28 1989- 1 1987-22 2001-11 1988-30 1988- 1 1995-14 1996- 5 1996- 1 1988-13 2002- 4 DAY BY DAY WET 03 14.0 8.0 12.0 7.8 7.0 7.8 8.6 8.0 9.2 10.0 12.2 13.2 25 YEAR - DAY 2002-13 1994- 1 1988- 6 2000- 1 1987-27 1986-13 1998-24 1994- 8 1996- 6 1986-17 1988-13 2002- 4 DAY BY DAY DRY 09 7.0 10.0 12.8 14.2 13.4 13.2 15.8 7.2 13.0 14.0 10.8 10.8 26 YEAR - DAY 1996- 7 2002-17 1995-24 1987-21 2003-12 1987- 9 1995-26 1995-18 1989-19 1996- 1 2001-19 1999- 1 DAY BY DAY WET 09 5.4 8.0 9.0 10.0 16.6 8.8 12.0 14.0 9.2 11.0 7.0 8.0 27 YEAR - DAY 1986-31 2002-17 1995-24 1988-16 1987-22 1994-16 1995-26 1994-12 1988-13 1996- 1 2001-19 2003-13 DAY BY DAY DRY 15 8.0 10.2 14.8 15.0 13.0 12.4 11.4 11.0 10.8 10.8 9.8 9.8 28 YEAR - DAY 1989- 9 2002-15 1995-24 1987-21 2001-15 1988-19 1987-25 1994-27 1988-11 1996- 1 2003-17 1999- 1 DAY BY DAY WET 15 10.0 8.4 10.0 9.0 11.0 10.2 10.0 12.6 9.0 10.2 7.0 8.0 29 YEAR - DAY 1995-30 1987-10 1995-24 1988-18 1988-16 1986-17 1987-23 1995- 4 1987- 3 1996- 1 2003-17 1994-16 DAY BY DAY MIN. 13.2 11.0 13.6 9.2 9.8 8.0 9.0 10.0 9.0 10.2 11.4 12.4 30 YEAR - DAY 2002-13 1997- 7 1989- 1 1986- 1 2001-18 1987- 2 1987- 6 1994- 1 1994- 3 1986-17 2001-20 2002- 4 DAY BY DAY MAX. 6.2 10.2 12.8 15.4 13.0 11.0 17.0 8.0 16.0 12.6 10.0 10.2 31 YEAR - DAY 1994-23 2002-17 2002-10 2000- 1 2001-15 2002-14 1995-26 1995- 5 1989-19 1996- 1 2001-19 1999- 1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MEAN AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -0.2 3.8 4.5 13.6 19.1 22.0 25.1 22.7 19.7 15.7 7.9 0.5 12.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.6 -3.4 -2.4 6.6 9.1 11.3 14.6 12.6 8.8 5.7 -1.7 -5.0 4.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.3 10.1 11.2 20.8 29.1 32.5 35.5 32.7 30.6 25.6 17.1 6.4 21.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.9 13.5 13.6 14.2 20.0 21.2 20.9 20.1 21.8 19.9 18.8 11.4 17.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.53 2.83 2.83 6.43 6.67 7.74 9.64 9.05 6.99 5.74 3.41 2.61 5.54 MEAN OF MIXING RATIO AT 09 GMT. 5.20 4.52 3.91 7.63 8.04 11.97 13.44 15.52 11.42 8.74 5.49 3.96 8.32 MEAN OF MIXING RATIO AT 15 GMT. 4.69 4.45 3.96 7.06 8.69 10.15 14.20 15.87 11.68 7.24 5.26 3.42 8.06 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -7.2 -7.4 1.0 5.0 8.0 10.2 9.0 6.0 -2.0 -7.0 -11.2 -15.0 DAY 25 7 17 5 6 2 6 15 5 17 14 15 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.2 20.4 20.0 24.0 34.0 36.0 40.0 36.2 34.0 35.0 24.2 11.2 40.0 DAY 15 27 1 10 14 13 31 15 23 2 5 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.0 7.4 15.6 19.4 19.4 2.0 0.0 6.2 0.0 0.0 6.0 8.0 19.4 DAY 23 7 8 11 11 14 ** 23 ** ** 30 2 MONTHLY TOTAL PRECIPITATION IN MM. 5.0 16.4 21.0 31.8 19.4 2.0 0.0 6.2 0.0 0.0 11.0 20.5 133.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 31.8 39.9 4.7 23.6 NO. OF DAYS WITH PRECIPITATION. 2 4 2 5 1 1 0 1 0 0 2 4 22 NO. OF DAYS PRECIPITATION EQUAL 2 4 2 5 1 1 0 1 0 0 2 4 22 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 1 1 0 0 0 0 0 0 0 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 67 61 79 58 53 57 66 68 70 68 69 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 81 62 50 51 33 43 43 51 44 45 52 66 52 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 82 64 53 55 43 42 51 63 52 46 59 69 57 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 11 14 0 0 0 0 0 0 0 10 15 75 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 1 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 15 25 30 24 23 3 0 0 120 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 22 24 0 0 0 0 0 0 3 22 24 122 DATE OF START AND END FREEZING START = 17 OCT. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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. 2.4 4.4 8.1 13.3 20.1 23.4 25.2 25.3 20.3 11.9 9.0 2.8 13.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.9 -2.8 1.6 5.1 10.2 13.2 15.1 16.1 11.6 3.6 0.1 -4.6 5.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.7 11.6 14.5 21.4 30.0 33.7 35.3 34.4 28.9 20.1 17.8 10.2 22.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.6 14.4 12.9 16.3 19.8 20.5 20.2 18.3 17.3 16.5 17.7 14.8 16.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.64 3.27 4.39 5.10 7.79 8.74 11.26 11.98 8.85 5.11 3.78 2.85 6.31 MEAN OF MIXING RATIO AT 09 GMT. 5.31 5.53 6.75 6.11 9.68 10.42 12.08 17.66 16.04 8.42 5.30 4.77 9.01 MEAN OF MIXING RATIO AT 15 GMT. 4.72 4.89 6.29 6.40 10.14 12.01 12.19 14.84 12.00 6.87 5.01 4.27 8.30 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.0 -8.0 -4.2 -1.0 4.4 9.2 7.0 12.0 6.0 -3.0 -5.0 -11.0 -11.0 DAY 5 11 29 2 6 14 5 1 27 29 2 9 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 16.0 22.0 32.2 38.4 37.2 40.0 37.4 36.4 30.4 24.0 14.4 40.0 DAY 25 3 7 18 30 30 7 15 7 8 9 25 24 HOUR MAXIMUM PRECIPITATION IN MM. 1.0 16.2 6.4 8.2 17.4 0.0 3.0 0.1 0.0 19.2 0.0 15.2 19.2 DAY 6 20 2 5 6 ** 26 6 ** 9 ** 28 MONTHLY TOTAL PRECIPITATION IN MM. 1.0 29.6 25.0 8.2 18.9 0.0 3.0 0.1 0.0 19.2 0.0 27.8 132.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 41.9 20.4 2.3 35.4 NO. OF DAYS WITH PRECIPITATION. 1 4 6 1 2 0 1 1 0 1 0 4 21 NO. OF DAYS PRECIPITATION EQUAL 1 4 6 1 2 0 1 0 0 1 0 4 20 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 1 0 0 0 0 1 0 2 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 73 76 65 65 59 70 71 73 74 70 70 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 71 63 65 42 37 35 38 54 69 58 42 58 53 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 63 69 49 48 45 42 52 59 60 50 65 56 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 13 2 0 0 0 0 0 0 0 3 20 64 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 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 3 18 28 31 30 12 1 0 0 123 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 23 11 2 0 0 0 0 0 4 16 28 114 DATE OF START AND END FREEZING START = 12 OCT. END = 8 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MEAN AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.9 2.2 8.2 14.3 18.6 24.8 26.0 25.8 22.9 16.2 8.6 3.1 14.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.7 -3.2 0.9 5.9 9.2 15.9 17.6 15.9 12.4 5.9 -0.6 -4.4 5.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.5 7.7 15.5 22.7 28.0 33.8 34.4 35.6 33.3 26.5 17.8 10.7 22.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.2 10.9 14.6 16.8 18.8 17.9 16.8 19.7 20.9 20.6 18.4 15.1 16.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.55 3.23 4.04 5.71 7.32 9.58 10.46 9.28 8.27 5.38 3.39 2.50 5.98 MEAN OF MIXING RATIO AT 09 GMT. 4.38 4.46 3.95 6.13 7.32 13.49 11.68 12.86 12.06 7.95 4.38 4.39 7.75 MEAN OF MIXING RATIO AT 15 GMT. 3.88 3.89 3.85 5.81 6.88 11.03 10.39 9.89 9.32 6.63 3.81 3.88 6.60 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.4 -9.0 -5.4 -4.0 4.4 11.0 13.4 10.4 6.0 0.0 -7.0 -8.0 -10.4 DAY 5 8 6 4 25 1 26 25 25 22 24 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 14.4 24.0 32.4 35.4 41.0 41.2 40.2 39.0 35.2 26.2 20.2 41.2 DAY 7 23 29 21 28 15 13 12 13 10 4 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.8 3.2 4.5 18.0 6.2 0.0 1.1 5.0 9.0 2.0 4.0 14.2 18.0 DAY 20 3 26 27 7 ** 28 21 1 14 29 18 MONTHLY TOTAL PRECIPITATION IN MM. 19.7 7.6 12.1 24.0 6.2 0.0 1.1 6.0 16.2 2.0 4.0 20.2 119.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 33.1 25.4 19.6 22.0 NO. OF DAYS WITH PRECIPITATION. 9 5 4 4 1 0 1 2 2 1 1 3 33 NO. OF DAYS PRECIPITATION EQUAL 6 3 4 4 1 0 1 2 2 1 1 3 28 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 1 0 0 0 0 0 0 0 1 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 74 72 65 66 58 59 59 65 64 64 64 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 65 38 37 33 41 35 34 38 36 36 50 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 66 44 40 37 41 39 35 38 38 37 57 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 15 1 1 0 0 0 0 0 0 11 20 67 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 3 2 0 0 0 0 6 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 8 12 29 29 31 26 3 0 0 138 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 1 1 0 0 0 0 3 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 24 11 6 0 0 0 0 0 1 16 29 118 DATE OF START AND END FREEZING START = 22 OCT. END = 7 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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. -1.9 ***** 8.3 13.8 17.0 23.4 26.3 26.0 20.0 16.4 6.0 3.4 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -9.2 -8.6 0.3 4.2 6.1 13.0 15.4 14.5 12.9 4.5 -2.4 -4.8 3.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.4 ***** 16.3 23.4 28.0 33.7 37.3 37.6 27.0 28.3 14.3 11.5 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.6 ***** 16.0 19.2 21.9 20.7 21.9 23.1 14.1 23.8 16.7 16.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.45 1.51 3.37 4.28 4.31 8.79 10.39 9.39 8.56 4.71 2.77 2.48 5.17 MEAN OF MIXING RATIO AT 09 GMT. 3.88 3.42 3.63 3.59 4.63 11.39 17.38 19.20 7.63 8.92 ***** 4.31 ***** MEAN OF MIXING RATIO AT 15 GMT. 2.46 2.74 3.49 3.29 3.59 8.98 16.15 14.96 9.04 7.71 4.26 3.70 6.70 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.4 -12.2 -7.4 -1.0 2.2 8.2 12.0 12.2 6.0 0.0 -8.0 -9.0 -12.4 DAY 15 9 14 4 3 3 15 27 23 27 25 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.4 ***** 25.2 35.2 35.4 38.2 40.2 41.0 38.0 38.4 22.0 22.4 ****** DAY 2 ** 29 27 30 27 13 10 1 1 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 10.0 18.4 0.0 0.0 2.2 0.0 0.0 0.0 5.0 0.0 13.2 18.4 DAY 16 21 8 ** ** 17 ** ** ** 29 ** 6 MONTHLY TOTAL PRECIPITATION IN MM. 32.4 15.0 40.2 0.0 0.0 3.4 0.0 0.0 0.0 5.0 0.0 28.4 124.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 70.4 2.7 0.0 26.8 NO. OF DAYS WITH PRECIPITATION. 6 2 4 0 0 2 0 0 0 1 0 3 18 NO. OF DAYS PRECIPITATION EQUAL 6 2 4 0 0 2 0 0 0 1 0 3 18 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 1 0 0 0 0 0 0 0 0 2 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 50 48 58 55 42 55 56 52 76 57 58 62 56 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 51 30 20 20 33 43 44 39 35 *** 50 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 53 58 37 24 20 34 58 51 57 43 49 57 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 24 2 0 0 0 0 0 0 0 13 20 90 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 2 0 0 0 2 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 10 26 28 30 11 9 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 3 1 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 14 2 0 0 0 0 0 1 19 26 121 DATE OF START AND END FREEZING START = 27 OCT. END = 4 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MEAN AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.2 2.2 4.5 13.2 17.0 23.0 24.1 25.6 23.0 18.9 8.6 1.5 13.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.4 -5.5 -2.8 4.2 6.3 10.7 10.7 12.8 10.2 9.2 1.8 -8.3 3.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.7 9.9 11.9 22.2 27.6 35.3 37.4 38.5 35.8 28.6 15.5 11.4 23.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 17.1 15.4 14.7 18.0 21.3 24.6 26.7 25.7 25.6 19.4 13.7 19.7 20.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.34 1.39 2.31 3.85 4.87 7.10 6.79 8.28 6.66 6.41 3.44 1.46 4.49 MEAN OF MIXING RATIO AT 09 GMT. 3.25 3.33 3.28 6.01 8.53 16.86 21.41 21.59 21.27 13.30 5.25 3.96 10.67 MEAN OF MIXING RATIO AT 15 GMT. 1.90 2.08 2.26 4.50 6.52 10.59 14.64 16.14 14.94 9.33 3.72 2.81 7.45 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.0 -11.2 -10.0 2.2 3.4 6.2 9.0 11.0 8.0 5.0 -7.0 -14.4 -14.4 DAY 2 16 9 1 4 3 10 2 28 29 30 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.0 13.4 17.2 34.0 32.2 40.0 40.0 40.0 37.4 32.2 20.2 15.2 40.0 DAY 3 27 30 30 29 26 30 11 1 7 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.2 8.2 8.0 23.0 17.4 0.0 2.2 0.0 0.0 4.0 0.0 7.0 23.0 DAY 24 4 2 4 3 ** 9 ** ** 19 ** 28 MONTHLY TOTAL PRECIPITATION IN MM. 12.4 14.6 12.2 34.3 33.0 0.0 2.2 0.0 0.0 4.0 0.0 7.0 119.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 32.7 56.2 1.8 9.2 NO. OF DAYS WITH PRECIPITATION. 3 2 2 3 4 0 1 0 0 1 0 1 17 NO. OF DAYS PRECIPITATION EQUAL 3 2 2 3 4 0 1 0 0 1 0 1 17 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 1 1 0 0 0 0 0 0 0 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 42 37 45 46 50 50 50 53 51 53 48 48 48 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 42 42 37 35 36 45 50 48 54 52 45 46 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 46 43 41 40 48 49 55 59 57 51 47 49 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 28 21 12 0 0 0 0 0 0 0 5 28 94 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 4 5 28 30 29 30 14 0 0 140 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 1 1 0 0 0 0 3 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 28 23 0 0 0 0 0 0 0 7 30 118 DATE OF START AND END FREEZING START = 24 NOV. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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. 0.6 0.5 3.3 9.0 11.7 20.6 25.9 24.1 23.8 16.1 4.3 -0.5 11.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.2 -9.2 -5.2 2.3 3.7 9.7 14.0 11.6 10.6 4.8 -5.3 -9.8 1.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.3 10.1 12.3 15.7 19.7 31.5 37.7 36.7 37.0 27.3 13.9 8.7 21.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.5 19.3 17.5 13.4 16.0 21.8 23.7 25.1 26.4 22.5 19.2 18.5 19.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.60 1.18 2.50 4.42 3.61 6.14 9.10 7.65 6.72 4.44 2.27 1.30 4.24 MEAN OF MIXING RATIO AT 09 GMT. 3.60 3.58 3.21 4.67 6.20 11.43 19.24 21.72 22.62 10.37 4.87 3.90 9.62 MEAN OF MIXING RATIO AT 15 GMT. 2.56 1.90 2.95 4.16 4.30 6.99 11.87 13.32 14.96 7.15 3.96 2.88 6.42 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.2 -12.0 -10.0 -1.0 1.0 7.0 11.0 8.0 8.0 1.0 -9.0 -15.0 -15.0 DAY 6 4 10 1 1 1 7 21 27 27 16 19 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 12.4 14.6 18.4 25.2 36.6 39.2 38.6 38.4 30.0 24.4 11.4 39.2 DAY 3 23 29 14 29 29 12 8 5 1 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.4 8.2 16.2 22.2 52.2 5.2 0.0 3.2 1.0 0.0 4.0 10.2 52.2 DAY 7 26 5 28 6 6 ** 6 15 ** 1 4 MONTHLY TOTAL PRECIPITATION IN MM. 16.8 22.6 28.8 59.2 88.0 7.4 0.0 3.2 1.0 0.0 5.2 19.8 252.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.1 61.3 1.7 9.9 NO. OF DAYS WITH PRECIPITATION. 2 4 5 4 5 2 0 1 1 0 2 3 29 NO. OF DAYS PRECIPITATION EQUAL 2 4 5 4 5 2 0 1 1 0 2 3 29 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 4 2 0 0 0 0 0 0 1 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 50 42 53 61 44 45 53 53 48 50 59 49 51 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 46 35 41 42 38 44 53 55 44 46 54 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 53 54 54 52 45 42 47 52 55 50 52 63 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 29 19 0 0 0 0 0 0 0 20 31 125 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 18 30 31 30 1 0 0 110 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 29 22 3 0 0 0 0 0 0 25 31 139 DATE OF START AND END FREEZING START = 6 NOV. END = 24 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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. -0.2 1.5 6.4 15.8 ***** 21.9 24.8 ***** 23.2 ***** 4.3 2.7 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -8.8 -8.0 0.4 6.5 ***** 10.6 13.1 ***** 9.5 ***** -3.2 -4.9 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.5 11.1 12.5 25.1 ***** 33.3 36.5 ***** 36.8 ***** 11.9 10.3 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 17.3 19.1 12.1 18.6 ***** 22.7 23.4 ***** 27.3 ***** 15.1 15.2 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.59 1.73 3.60 4.78 ***** 6.81 8.53 ***** 6.45 ***** 2.84 2.53 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.97 3.57 3.84 8.56 ***** 16.87 22.93 ***** 18.56 ***** 4.32 3.82 ***** MEAN OF MIXING RATIO AT 15 GMT. 2.24 3.47 3.44 5.59 ***** 10.36 14.88 ***** 11.03 ***** 4.21 3.82 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.0 -10.2 -6.2 3.0 ***** 7.0 10.0 ***** 7.0 ***** -9.0 -11.2 ****** DAY 10 15 17 1 ** 3 14 ** 30 ** 22 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.0 12.6 18.4 29.6 ***** 35.2 38.4 ***** 38.4 ***** 16.0 14.2 ****** DAY 29 9 30 28 ** 26 3 ** 1 ** 2 31 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.4 19.2 8.2 2.2 ***** 11.0 0.0 ***** 0.0 ***** 4.0 2.0 ****** DAY 2 3 3 22 ** 4 ** ** ** ** 27 20 MONTHLY TOTAL PRECIPITATION IN MM. 8.4 35.8 16.2 2.2 ***** 27.4 0.0 ***** 0.0 ***** 4.0 3.2 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 62.1 30.5 0.0 7.4 NO. OF DAYS WITH PRECIPITATION. 1 3 3 1 *** 4 0 *** 0 *** 1 2 *** NO. OF DAYS PRECIPITATION EQUAL 1 3 3 1 *** 4 0 *** 0 *** 1 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 *** 1 0 *** 0 *** 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 59 59 63 47 *** 50 53 *** 46 *** 63 66 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 57 42 42 42 *** 50 58 *** 47 *** 50 48 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 61 62 60 47 *** 53 56 *** 45 *** 66 63 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 30 28 4 0 *** 0 0 *** 0 *** 19 19 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 *** 0 0 *** 0 *** 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** 0 0 *** 0 *** 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** 30 31 *** 30 *** 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** 0 0 *** 0 *** 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** 0 0 *** 0 *** 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 28 9 0 *** 0 0 *** 0 *** 20 29 *** DATE OF START AND END FREEZING START = 11 NOV. END = 18 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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. 2.2 2.5 8.7 16.2 21.5 23.5 26.0 24.7 17.8 13.3 10.4 4.9 14.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.2 -5.7 0.7 6.0 10.6 13.0 15.1 14.3 8.0 4.4 3.1 -1.5 5.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.6 10.8 16.8 26.4 32.4 34.0 36.9 35.1 27.7 22.3 17.7 11.1 23.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.8 16.5 16.1 20.4 21.8 21.0 21.8 20.8 19.7 17.9 14.6 12.6 18.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.27 2.37 4.23 5.09 7.24 8.77 9.63 8.97 6.18 4.93 4.75 3.04 5.62 MEAN OF MIXING RATIO AT 09 GMT. 3.46 3.78 5.23 8.90 16.18 16.80 14.95 10.33 7.28 5.50 5.25 4.28 8.50 MEAN OF MIXING RATIO AT 15 GMT. 4.08 3.80 4.22 6.76 12.12 11.86 14.11 11.77 7.39 5.70 5.11 2.92 7.49 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.0 -11.0 -3.0 2.0 5.2 9.0 12.0 9.0 4.0 2.0 -1.0 -6.0 -11.0 DAY 22 7 4 4 2 18 3 11 12 19 29 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 15.4 22.0 33.0 35.4 37.6 42.0 40.0 35.0 28.0 23.0 17.4 42.0 DAY 29 26 27 25 22 27 17 25 3 19 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.2 18.2 10.2 6.0 9.2 0.0 0.0 0.0 0.0 0.0 13.2 4.0 18.2 DAY 2 26 24 26 20 ** ** ** ** ** 26 16 MONTHLY TOTAL PRECIPITATION IN MM. 14.4 29.2 15.4 8.2 9.2 0.0 0.0 0.0 0.0 0.0 30.8 6.0 113.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 52.1 15.4 0.0 32.5 NO. OF DAYS WITH PRECIPITATION. 3 3 2 2 1 0 0 0 0 0 7 2 20 NO. OF DAYS PRECIPITATION EQUAL 3 3 2 2 1 0 0 0 0 0 7 2 20 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 0 0 0 0 0 0 0 1 0 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 67 66 68 54 54 57 53 51 57 60 69 66 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 42 46 43 39 50 50 37 31 32 35 45 57 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 62 51 46 55 52 50 46 43 46 54 53 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 22 0 0 0 0 0 0 0 0 0 7 58 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 1 0 0 0 0 2 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 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 10 29 27 31 30 9 0 0 0 136 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 3 0 0 0 0 5 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 26 13 0 0 0 0 0 0 0 1 20 90 DATE OF START AND END FREEZING START = 29 NOV. END = 28 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MEAN AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.6 3.3 8.0 13.6 20.9 22.7 24.8 23.7 19.7 11.3 4.7 0.7 13.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.4 -4.6 1.0 5.8 11.8 10.8 13.8 13.3 11.2 2.6 -4.6 -10.0 3.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.6 11.2 15.0 21.3 30.1 34.9 37.8 34.6 28.1 20.0 14.0 11.3 22.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.0 15.8 14.0 15.5 18.3 24.1 24.0 21.3 16.9 17.4 18.6 21.3 18.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.13 2.63 3.69 5.45 9.31 8.64 9.58 9.49 9.00 4.59 2.52 1.39 5.70 MEAN OF MIXING RATIO AT 09 GMT. 4.27 3.45 4.83 8.58 14.67 9.84 9.63 6.03 5.10 3.37 1.95 3.79 6.29 MEAN OF MIXING RATIO AT 15 GMT. 3.49 3.46 4.84 7.06 10.83 11.24 11.74 12.36 11.14 7.51 5.02 5.57 7.86 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.4 -9.0 -5.2 3.0 7.0 7.0 10.0 7.2 6.2 -5.4 -9.0 -15.2 -15.2 DAY 25 19 11 3 3 10 4 20 8 25 6 11 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.2 15.0 26.0 26.5 36.0 40.0 48.0 42.0 33.0 26.0 17.2 19.0 48.0 DAY 16 2 24 30 30 6 7 4 17 5 1 30 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.3 0.0 18.0 18.0 2.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 18.0 DAY 15 ** 4 24 12 9 ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 12.3 0.0 34.5 57.2 2.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 110.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 42.5 57.5 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. 1 0 4 7 1 1 0 0 0 0 0 0 14 NO. OF DAYS PRECIPITATION EQUAL 1 0 4 7 1 1 0 0 0 0 0 0 14 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 2 0 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 59 60 54 56 61 58 47 52 66 67 60 49 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 42 48 52 52 28 25 18 23 25 21 47 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 61 53 54 60 56 54 46 48 65 73 76 80 61 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 21 3 0 0 0 0 0 0 3 22 31 104 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 19 30 31 29 10 0 0 0 119 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 12 3 0 0 0 0 16 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 6 0 0 0 0 0 6 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 8 0 0 0 0 0 0 8 27 31 132 DATE OF START AND END FREEZING START = 19 OCT. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MEAN AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.4 4.9 4.8 11.7 22.3 25.7 26.9 25.9 25.5 12.1 4.5 4.0 14.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.4 -2.6 -1.6 2.7 10.8 15.4 18.1 15.5 15.9 5.8 -4.8 -5.2 5.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.2 12.4 11.3 20.7 33.8 36.1 35.7 36.4 35.1 18.4 13.9 13.2 23.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 17.6 15.0 12.9 18.0 23.0 20.7 17.6 20.9 19.2 12.6 18.7 18.4 17.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.09 3.14 3.26 4.71 9.05 12.42 15.68 11.74 10.80 6.17 2.49 2.30 6.99 MEAN OF MIXING RATIO AT 09 GMT. 2.93 3.40 3.77 4.54 9.86 13.20 16.12 17.99 18.00 6.82 2.03 4.07 8.56 MEAN OF MIXING RATIO AT 15 GMT. 5.13 5.65 4.79 6.99 16.42 20.20 21.92 19.48 15.33 8.59 4.98 5.61 11.26 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -9.0 -6.2 -5.0 7.0 10.0 14.2 13.0 10.2 4.0 -9.0 -10.0 -11.0 DAY 1 14 19 6 14 4 3 5 5 2 6 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.0 18.2 17.4 29.0 38.2 42.2 42.0 40.2 39.0 24.0 17.2 18.2 42.2 DAY 8 18 28 23 7 29 28 30 2 9 1 18 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.0 13.0 8.0 7.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.2 13.0 DAY 19 2 12 6 ** ** ** ** ** ** ** 12 MONTHLY TOTAL PRECIPITATION IN MM. 5.0 13.0 40.0 17.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.2 77.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 74.9 22.2 0.0 2.8 NO. OF DAYS WITH PRECIPITATION. 2 1 8 3 0 0 0 0 0 0 0 1 15 NO. OF DAYS PRECIPITATION EQUAL 2 1 8 3 0 0 0 0 0 0 0 1 15 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 55 63 65 64 69 73 78 64 59 78 60 57 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 37 39 46 31 31 35 43 47 50 56 22 45 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 79 72 67 74 79 85 71 61 83 75 75 75 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 28 14 8 3 0 0 0 0 0 0 23 24 100 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 4 1 1 0 0 0 6 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 28 30 30 31 30 0 0 0 149 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 4 1 0 0 0 0 9 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 21 22 8 0 0 0 0 0 0 28 31 141 DATE OF START AND END FREEZING START = 1 NOV. END = 12 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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. 4.8 4.1 9.0 13.3 22.6 25.7 29.5 27.5 20.2 18.3 11.4 6.0 16.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.1 -4.8 3.7 6.8 13.9 17.9 20.5 17.2 11.3 9.2 1.8 -1.3 7.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 14.6 12.9 14.3 19.7 31.3 33.6 38.5 37.7 29.1 27.4 20.9 13.2 24.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 19.7 17.7 10.6 12.9 17.4 15.7 18.0 20.5 17.8 18.2 19.1 14.5 16.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.36 2.43 4.50 5.88 11.38 6.65 6.80 13.06 4.57 4.09 2.91 2.98 5.63 MEAN OF MIXING RATIO AT 09 GMT. 4.22 4.18 4.69 6.31 15.27 3.78 5.14 19.79 2.84 3.64 2.21 3.41 6.29 MEAN OF MIXING RATIO AT 15 GMT. 6.83 5.98 4.68 6.25 11.07 6.65 6.29 21.36 2.64 5.48 4.61 5.61 7.29 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.4 -9.0 1.0 4.2 8.2 13.0 16.2 13.2 7.2 6.0 -8.0 -7.2 -9.0 DAY 17 7 13 6 2 6 27 28 23 23 28 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.2 17.2 19.0 24.2 35.0 38.2 44.2 42.0 32.2 32.0 27.2 17.2 44.2 DAY 7 23 31 27 23 28 19 7 1 7 1 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 3.0 0.0 0.0 4.0 0.0 0.0 0.0 0.0 3.0 5.0 2.0 5.0 DAY ** 17 ** ** 5 ** ** ** ** 25 14 1 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 3.0 0.0 0.0 4.0 0.0 0.0 0.0 0.0 8.0 10.0 4.0 29.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 10.3 13.8 0.0 75.9 NO. OF DAYS WITH PRECIPITATION. 0 1 0 0 1 0 0 0 0 3 2 3 10 NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 1 0 0 0 0 3 2 3 10 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 62 64 63 61 68 32 27 59 37 42 51 69 53 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 43 48 48 43 52 12 13 46 12 17 16 38 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 77 56 54 51 24 19 67 12 35 41 70 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 24 0 0 0 0 0 0 0 0 8 4 58 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 12 1 0 0 0 0 16 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 22 29 29 30 9 6 0 0 125 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 11 7 0 0 0 0 18 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 27 0 0 0 0 0 0 0 0 11 17 85 DATE OF START AND END FREEZING START = 20 NOV. END = 28 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MEAN AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.9 5.5 9.1 17.2 19.6 25.3 27.6 28.7 23.3 17.9 9.8 5.7 16.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.5 0.1 2.9 7.0 9.0 16.9 17.9 18.8 13.3 9.2 4.6 1.4 8.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.3 10.9 15.2 27.4 30.2 33.7 37.2 38.6 33.2 26.7 15.0 9.9 23.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.8 10.8 12.3 20.4 21.2 16.8 19.3 19.8 19.9 17.5 10.4 8.5 15.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.08 3.52 3.81 4.57 5.20 8.76 7.69 8.98 4.81 4.17 4.06 3.52 5.18 MEAN OF MIXING RATIO AT 09 GMT. 3.25 3.89 4.46 7.50 8.82 9.42 8.47 7.43 5.85 5.79 3.28 3.61 5.98 MEAN OF MIXING RATIO AT 15 GMT. 4.33 5.01 5.73 9.58 11.22 11.82 9.25 9.49 6.33 4.94 3.37 3.85 7.08 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.8 -3.6 -5.4 5.2 5.0 14.0 13.2 15.0 10.4 6.4 3.0 -4.8 -5.8 DAY 15 28 1 1 1 10 3 18 2 2 27 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.0 16.0 26.4 36.0 35.0 40.0 42.0 41.0 38.0 30.4 20.4 13.4 42.0 DAY 6 8 30 16 21 29 5 19 12 11 1 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.0 4.0 23.0 36.0 10.0 0.0 1.0 0.0 0.0 2.0 0.0 2.0 36.0 DAY 13 8 19 6 31 ** 24 ** ** 15 ** 3 MONTHLY TOTAL PRECIPITATION IN MM. 19.0 12.6 35.0 65.0 26.0 0.0 1.0 0.0 0.0 2.0 0.0 2.0 162.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 41.0 56.0 0.6 2.5 NO. OF DAYS WITH PRECIPITATION. 6 5 4 4 5 0 1 0 0 1 0 1 27 NO. OF DAYS PRECIPITATION EQUAL 6 4 4 4 5 0 1 0 0 1 0 1 26 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 2 1 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 78 66 58 56 50 36 38 29 38 57 70 54 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 45 48 42 34 34 29 22 17 17 26 30 46 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 66 68 60 50 51 43 31 33 25 34 40 62 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 6 0 1 0 0 0 0 0 0 0 0 4 11 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 1 0 0 0 0 4 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 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 10 22 29 31 31 29 2 0 0 154 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 3 10 0 0 0 0 14 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 18 10 3 0 0 0 0 0 0 0 0 7 38 DATE OF START AND END FREEZING START = 25 DEC. END = 3 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MEAN AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.5 6.9 10.1 18.7 26.9 29.9 28.6 25.8 22.2 15.0 8.6 5.1 16.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.6 3.3 5.9 11.5 17.3 21.0 19.2 16.2 11.9 6.1 0.9 -2.5 8.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.6 10.5 14.4 25.8 36.5 38.8 38.0 35.4 32.4 23.8 16.3 12.7 24.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.2 7.2 8.5 14.3 19.2 17.8 18.8 19.2 20.5 17.7 15.4 15.2 15.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.87 4.04 4.81 6.49 8.57 9.40 8.14 6.69 5.90 5.03 4.22 3.25 5.78 MEAN OF MIXING RATIO AT 09 GMT. 3.88 3.76 4.70 6.55 9.91 6.78 6.32 6.82 5.95 5.37 4.78 4.11 5.74 MEAN OF MIXING RATIO AT 15 GMT. 3.93 4.14 4.82 7.70 8.11 10.26 10.77 9.58 7.71 5.76 4.60 4.40 6.82 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.4 -3.0 2.4 6.4 13.4 18.0 16.6 14.0 6.2 2.2 -4.0 -8.2 -8.2 DAY 13 8 8 5 1 4 15 19 29 18 14 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 13.6 18.4 33.4 40.6 42.0 42.0 38.4 39.0 29.0 22.2 21.2 42.0 DAY 2 24 28 30 20 12 8 12 12 14 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.5 1.5 4.0 2.5 0.0 0.0 0.0 0.0 6.0 8.0 3.0 0.0 8.0 DAY 20 8 6 6 ** ** ** ** 22 28 18 ** MONTHLY TOTAL PRECIPITATION IN MM. 16.0 1.5 8.0 3.5 0.0 0.0 0.0 0.0 6.0 11.0 7.2 0.0 53.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 47.9 6.6 11.3 34.2 NO. OF DAYS WITH PRECIPITATION. 4 1 2 2 0 0 0 0 1 2 3 0 15 NO. OF DAYS PRECIPITATION EQUAL 4 1 2 2 0 0 0 0 1 2 3 0 15 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 74 70 69 59 44 39 39 42 42 59 75 74 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 46 47 32 26 16 16 21 22 30 41 44 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 64 59 57 51 28 31 33 34 34 41 56 59 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 0 0 0 0 0 0 0 0 0 1 18 38 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 17 5 0 0 0 0 0 22 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 7 31 30 31 31 20 0 0 0 150 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 7 6 0 0 0 0 0 15 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 1 0 0 0 0 0 0 0 0 12 23 62 DATE OF START AND END FREEZING START = 9 NOV. END = 8 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MEAN AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.8 5.4 9.3 18.0 22.3 25.3 26.8 26.5 21.3 16.4 5.8 4.0 15.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.3 -1.4 3.8 9.1 11.9 13.4 16.1 17.6 11.1 8.0 -0.4 -2.5 6.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.0 12.2 14.8 26.8 32.7 37.3 37.4 35.4 31.5 24.7 12.1 10.5 23.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.3 13.6 11.0 17.7 20.8 23.9 21.3 17.8 20.4 16.7 12.5 13.0 17.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.80 3.27 3.81 4.93 6.92 8.33 8.46 6.31 8.19 6.49 3.38 3.52 5.53 MEAN OF MIXING RATIO AT 09 GMT. 3.33 3.80 3.09 5.03 5.14 5.88 5.47 5.40 6.29 5.47 3.89 5.08 4.82 MEAN OF MIXING RATIO AT 15 GMT. 3.85 3.86 4.52 5.61 9.31 10.70 9.39 6.92 10.46 8.68 4.32 4.90 6.88 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.4 -8.2 -1.2 6.0 7.2 11.6 14.6 14.2 7.4 6.4 -4.2 -5.2 -10.4 DAY 19 8 7 8 7 5 28 1 28 8 29 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.2 15.2 19.0 34.4 40.2 40.2 39.2 39.2 37.0 28.2 19.0 15.0 40.2 DAY 2 28 31 1 30 28 17 9 1 11 1 12 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.5 12.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 7.0 4.0 10.0 14.5 DAY 29 13 ** ** ** ** ** ** 30 14 10 12 MONTHLY TOTAL PRECIPITATION IN MM. 36.0 16.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 11.0 8.0 21.0 94.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 55.3 0.0 2.1 42.6 NO. OF DAYS WITH PRECIPITATION. 5 3 0 0 0 0 0 0 1 3 3 6 21 NO. OF DAYS PRECIPITATION EQUAL 5 3 0 0 0 0 0 0 1 3 3 6 21 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 0 0 0 0 0 0 0 0 0 1 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 70 56 43 44 43 36 34 62 65 66 76 56 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 41 43 30 23 16 15 14 14 23 29 45 67 30 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 54 51 35 38 33 28 23 45 54 57 73 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 11 0 0 0 0 0 0 0 0 1 11 43 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 3 0 0 0 0 3 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 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 24 30 31 31 20 0 0 0 139 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 1 0 0 0 0 0 0 2 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 15 2 0 0 0 0 0 0 0 21 27 93 DATE OF START AND END FREEZING START = 9 NOV. END = 7 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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. 2.5 5.2 10.3 16.9 21.8 26.6 26.9 26.3 ***** 16.0 8.8 4.4 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -3.1 -1.4 2.2 7.4 12.5 19.2 19.7 17.6 ***** 7.5 1.0 -0.8 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.2 11.8 18.4 26.4 31.1 34.1 34.0 35.1 ***** 24.6 16.5 9.6 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.3 13.2 16.2 19.0 18.6 14.9 14.3 17.5 ***** 17.1 15.5 10.4 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.14 3.45 4.43 6.14 7.91 6.89 7.66 8.08 ***** 4.69 3.52 3.64 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.52 4.57 6.27 6.13 6.53 5.35 6.01 6.18 ***** 5.66 4.47 4.89 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.67 5.03 7.44 7.17 8.45 7.77 9.58 9.32 ***** 7.09 4.46 4.84 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.6 -9.4 -4.0 2.4 9.0 13.0 16.0 13.0 ***** 2.0 -7.6 -6.2 ****** DAY 30 2 12 14 28 2 5 14 ** 28 21 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.2 17.2 26.0 33.0 39.0 41.0 41.0 41.0 ***** 32.0 22.2 14.0 ****** DAY 4 27 24 26 11 7 10 21 ** 1 6 31 24 HOUR MAXIMUM PRECIPITATION IN MM. 3.2 16.0 5.0 2.0 4.0 2.0 2.0 2.0 ***** 1.0 10.0 6.2 ****** DAY 5 19 10 27 7 14 18 12 ** 2 14 21 MONTHLY TOTAL PRECIPITATION IN MM. 3.2 19.0 9.0 4.0 5.0 2.0 2.0 3.0 ***** 4.0 14.0 23.4 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 35.2 12.4 5.6 46.7 NO. OF DAYS WITH PRECIPITATION. 2 3 5 3 2 1 1 2 *** 4 4 7 *** NO. OF DAYS PRECIPITATION EQUAL 1 3 3 3 2 1 1 2 *** 4 4 7 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 0 0 0 0 *** 0 1 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 74 70 57 54 39 40 45 *** 58 69 84 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 54 49 29 24 17 19 18 *** 30 40 65 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 67 64 39 37 31 37 34 *** 47 50 74 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 12 8 1 0 0 0 0 0 *** 0 3 7 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 8 12 1 *** 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 7 20 26 30 20 *** 1 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 1 1 *** 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 12 7 0 0 0 0 0 *** 0 12 18 *** DATE OF START AND END FREEZING START = 3 NOV. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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. 0.8 5.4 11.1 14.7 20.2 24.9 26.5 27.3 23.0 18.4 8.7 0.4 15.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.8 -0.7 3.6 8.4 13.1 17.1 18.6 18.9 13.1 9.7 1.1 -4.8 7.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.4 11.5 18.7 21.0 27.3 32.6 34.3 35.6 33.0 27.1 16.4 5.6 22.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.2 12.2 15.1 12.6 14.2 15.5 15.7 16.7 19.9 17.4 15.3 10.4 14.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.82 3.43 4.12 5.88 6.43 7.69 9.02 9.89 7.45 5.99 4.14 2.68 5.79 MEAN OF MIXING RATIO AT 09 GMT. 3.83 3.85 3.90 6.17 6.35 6.78 7.19 8.54 7.05 6.37 5.04 3.67 5.73 MEAN OF MIXING RATIO AT 15 GMT. 3.69 4.08 4.47 6.03 6.58 7.52 9.20 10.18 7.63 8.01 4.73 3.46 6.30 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.2 -4.6 -9.0 3.4 5.4 14.0 15.2 9.4 7.2 5.0 -6.0 -18.4 -18.4 DAY 14 7 11 6 2 1 5 14 28 29 30 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.2 18.4 29.0 30.2 36.0 40.0 41.0 41.0 36.2 32.2 21.4 9.0 41.0 DAY 2 27 27 19 29 13 18 9 12 3 3 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 2.0 12.0 18.0 8.0 1.0 2.0 4.0 4.0 0.0 2.0 4.0 18.0 DAY 12 1 23 12 5 7 21 13 25 ** 2 15 MONTHLY TOTAL PRECIPITATION IN MM. 22.0 5.0 19.0 66.0 17.0 2.0 2.0 4.0 4.0 0.0 5.0 13.4 159.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 28.9 53.3 6.3 11.5 NO. OF DAYS WITH PRECIPITATION. 5 3 6 9 4 2 1 1 1 0 3 9 44 NO. OF DAYS PRECIPITATION EQUAL 5 3 6 9 4 2 1 1 1 0 3 9 44 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 3 0 0 0 0 0 0 0 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 77 66 72 56 50 50 53 61 63 73 75 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 46 31 44 30 23 22 25 24 30 43 62 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 56 41 49 37 32 33 36 31 42 52 71 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 15 7 2 0 0 0 0 0 0 0 7 16 47 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 6 6 0 0 0 0 13 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 6 0 0 0 0 0 0 0 0 0 0 0 6 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 11 20 30 29 27 9 0 0 127 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 2 5 0 0 0 0 8 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. 22 19 7 0 0 0 0 0 0 0 13 23 84 DATE OF START AND END FREEZING START = 9 NOV. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 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.***** 4.1 7.4 13.9 16.9 22.8 27.2 24.7 20.2 16.1 6.4 1.2 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** -1.6 1.3 7.3 9.1 15.2 20.0 17.3 12.0 7.4 -0.5 -4.9 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 9.9 13.5 20.4 24.6 30.5 34.3 32.0 28.5 24.7 13.3 7.3 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 11.5 12.2 13.1 15.5 15.3 14.3 14.7 16.5 17.3 13.8 12.2 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 3.63 4.14 6.17 7.74 9.54 11.65 9.86 7.77 5.90 3.95 3.00 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 3.82 4.70 7.11 8.34 9.21 12.12 8.86 7.84 6.52 4.48 3.87 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 4.08 4.68 6.70 8.34 9.68 13.71 10.99 8.88 6.58 4.31 3.51 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -9.2 -11.0 -1.2 -1.0 7.2 14.0 11.4 2.0 4.4 -9.2 -11.2 ****** DAY ** 18 3 2 2 12 5 31 28 9 24 16 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 14.2 23.0 30.2 33.2 36.2 40.2 34.6 34.0 29.6 24.6 13.2 ****** DAY ** 4 20 10 12 18 17 12 6 11 2 2 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** 6.0 26.1 15.0 2.2 4.2 1.0 1.0 1.0 5.2 3.0 14.0 ****** DAY ** 20 8 12 9 2 31 25 25 5 13 9 MONTHLY TOTAL PRECIPITATION IN MM. ***** 21.0 56.3 68.4 8.6 6.2 1.0 1.0 1.0 7.2 9.0 17.4 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 39.2 42.2 1.5 17.0 NO. OF DAYS WITH PRECIPITATION. *** 6 4 10 6 3 1 1 1 2 4 2 *** NO. OF DAYS PRECIPITATION EQUAL *** 6 4 10 6 3 1 1 1 2 4 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** 0 2 2 0 0 0 0 0 0 0 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 76 72 69 68 64 60 55 56 61 70 78 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 51 50 49 42 34 34 29 32 33 46 58 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 60 55 52 50 44 47 42 40 39 51 68 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 5 5 0 0 0 0 0 0 0 13 19 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 11 4 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 3 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 2 4 18 30 29 14 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 1 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** 22 10 2 1 0 0 0 0 0 15 31 *** DATE OF START AND END FREEZING START = 8 NOV. END = 2 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MEAN AND EXTREMES FOR THE PERIOD 1986 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. 1.7 3.9 7.7 14.5 19.9 24.2 26.3 25.7 21.6 15.6 7.5 2.9 14.3 SD OF MEAN DAILY TEMPERATURE IN C. 1.67 1.72 2.26 2.41 3.38 2.19 1.41 1.50 2.02 2.36 2.24 2.00 2.10 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.6 -3.5 1.0 6.3 10.3 14.4 16.4 15.6 11.5 6.5 -0.5 -4.3 5.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.1 10.9 14.5 22.8 29.5 34.1 36.4 35.7 31.7 24.7 15.5 10.2 22.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.7 14.1 13.5 16.5 19.2 19.7 19.9 20.1 20.3 18.3 16.1 14.6 17.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.33 2.77 3.76 5.29 7.15 8.36 9.45 9.30 7.33 5.25 3.41 2.66 5.58 MEAN OF MIXING RATIO AT 09 GMT. 3.96 3.94 4.37 6.45 9.10 10.56 12.33 12.87 10.99 7.02 4.19 4.12 7.49 MEAN OF MIXING RATIO AT 15 GMT. 3.91 4.03 4.50 6.28 8.92 10.46 12.37 12.91 10.03 7.08 4.46 4.09 7.42 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.2 -12.2 -11.0 -5.0 -1.0 6.2 7.0 7.2 2.0 -5.4 -9.2 -18.4 -18.4 YEAR - DAY 2-14 89- 9 3- 3 96- 6 3- 2 91- 3 87- 5 95-20 3-28 95-25 3-24 2- 5 2- 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.2 20.4 29.0 36.0 40.6 42.2 48.0 42.0 39.0 38.4 27.2 22.4 48.0 YEAR - DAY 97- 7 86-27 2-27 98-16 99-20 96-29 95- 7 95- 4 88-13 89- 1 97- 1 89- 1 95- 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.5 19.2 26.1 36.0 52.2 11.0 3.0 6.2 9.0 19.2 13.2 15.2 52.2 YEAR - DAY 0-29 93- 3 3- 8 98- 6 92- 6 93- 4 87-26 86-23 88- 1 87- 9 94-26 87-28 92- 6 MONTHLY TOTAL PRECIPITATION IN MM. 14.0 15.4 21.9 26.4 14.8 3.2 0.7 1.5 1.9 4.6 6.4 12.7 123.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 41.6 36.1 3.2 19.1 NO. OF DAYS WITH PRECIPITATION. 3 3 4 3 2 1 0 1 0 1 2 3 23 NO. OF DAYS PRECIPITATION EQUAL 3 3 3 3 2 1 0 1 0 1 2 3 22 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 1 0 0 0 0 0 0 0 0 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 66 65 63 59 56 51 51 53 56 60 64 66 59 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 49 43 38 35 32 33 34 36 36 39 53 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 61 54 48 45 43 45 47 45 49 54 65 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 15 4 0 0 0 0 0 0 0 9 17 68 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 3 1 0 0 0 0 6 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 3 17 27 30 29 21 3 0 0 130 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 3 2 0 0 0 0 6 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 21 11 1 0 0 0 0 0 1 16 25 103 DATE OF START AND END FREEZING START = 12 OCT. END = 2 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KOUHAN-SHAHROUD LATITUDE 36 37 N DATA PROCESSING CENTER LONGITUDE 55 53 E ELEVATION 1004 MET. MEAN AND EXTREMES FOR THE PERIOD 1986 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. 2.8 4.7 8.8 16.0 22.1 26.3 28.6 27.9 23.7 17.1 8.7 4.0 15.9 AVERAGE DEW POINT TEMPERATURE. IN C. -4.2 -3.3 -1.0 4.0 8.3 10.9 13.1 13.4 9.7 5.0 -1.6 -3.2 4.2 AVERAGE OF MIXING RATIO IN G/KG 3.41 3.58 4.20 6.00 8.38 9.79 11.38 11.69 9.45 6.44 4.03 3.61 6.83 AVERAGE OF VAPOUR PRESSURE HPA 4.88 5.13 6.03 8.60 11.98 13.99 16.22 16.64 13.48 9.23 5.78 5.18 9.76 AVERAGE OF SATURATION DEFICIT IN HPA 3.11 3.96 5.97 10.95 16.73 22.24 24.94 22.95 17.99 11.69 6.35 3.54 12.54 AVERAGE RELATIVE HUMIDITY IN PERCENT 63 58 53 48 45 42 43 45 46 48 52 61 50 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 75 72 67 62 59 54 54 56 59 62 68 74 64 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 50 45 40 35 32 30 31 33 33 35 37 48 37 NO. OF DAYS PRECIPITATION EQUAL 1 1 2 2 1 0 0 0 0 0 0 1 8 OR MORE THAN 5 MM.