IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1991 3.2 3.1 8.0 16.4 18.6 25.1 28.2 28.3 23.5 16.8 9.6 2.8 25.5 1992 0.3 3.5 5.2 14.1 16.6 24.9 29.7 26.4 23.1 17.6 12.4 5.2 29.4 1993 0.9 4.6 8.1 16.0 20.3 26.6 28.5 28.5 25.9 17.1 8.1 6.4 27.6 1994 5.7 5.1 11.5 17.6 21.2 25.8 29.3 29.8 22.7 17.4 11.8 3.4 26.4 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 2.0 6.0 6.7 14.3 21.8 26.6 28.8 29.2 27.0 17.8 10.7 8.2 27.2 1997 6.0 5.1 7.6 15.6 21.5 27.3 30.7 31.2 24.5 20.6 10.5 6.0 26.1 1998 1.9 4.4 10.2 17.7 21.4 28.2 29.5 29.6 25.5 19.4 15.1 10.0 27.7 1999 4.6 9.0 10.3 16.8 23.3 28.6 27.9 30.9 25.2 20.7 9.9 7.0 26.3 2000 4.4 5.8 10.1 19.9 24.7 27.2 29.9 29.9 26.3 17.0 9.4 5.8 25.5 MEAN 3.2 5.2 8.6 16.5 21.0 26.7 29.2 29.3 24.9 18.3 10.8 6.1 26.1 SD 2.08 1.71 2.03 1.81 2.38 1.28 0.90 1.45 1.52 1.55 2.05 2.22 1.75 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 -0.3 -1.3 3.7 10.9 12.4 18.1 21.6 22.3 16.9 11.9 5.7 -0.2 10.1 1992 -3.1 -0.1 1.5 9.1 11.7 19.2 23.3 20.8 17.6 11.7 8.0 2.1 10.1 1993 -2.3 1.1 4.1 11.6 15.7 21.2 22.9 23.5 20.6 12.6 4.8 2.9 11.5 1994 2.2 1.2 7.3 12.9 16.4 19.6 22.8 23.7 17.4 12.7 7.9 -0.3 12.0 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 -1.2 2.2 3.3 9.8 16.5 20.8 23.4 23.8 21.8 13.0 6.4 4.0 12.0 1997 2.0 0.4 3.2 10.9 16.3 21.8 24.4 25.7 19.1 15.8 7.0 2.3 12.4 1998 -1.6 0.3 5.5 12.5 16.3 22.7 24.0 24.2 20.3 14.4 10.3 6.0 12.9 1999 1.0 4.4 5.8 11.6 17.5 22.7 21.6 26.0 19.6 16.0 5.5 3.0 12.9 2000 0.7 1.4 5.6 14.9 19.1 21.1 24.3 24.6 21.0 12.6 5.6 2.6 12.8 MEAN -0.3 1.0 4.4 11.6 15.8 20.8 23.2 23.8 19.4 13.4 6.8 2.5 11.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 6.6 7.5 12.4 21.9 24.8 32.2 34.9 34.2 30.0 21.7 13.4 5.9 20.5 1992 3.6 7.1 8.9 19.0 21.5 30.6 36.0 32.1 28.5 23.6 16.7 8.3 19.7 1993 4.1 8.2 12.1 20.4 25.0 31.9 34.1 33.5 31.2 21.6 11.4 10.0 20.3 1994 9.1 9.0 15.7 22.3 26.0 32.1 35.9 36.0 28.0 22.0 15.8 7.1 21.6 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 5.1 9.9 10.2 18.8 27.0 32.4 34.1 34.6 32.3 22.7 15.0 12.3 21.2 1997 10.0 9.7 11.9 20.3 26.7 32.8 37.0 36.7 30.0 25.4 14.0 9.6 22.0 1998 5.3 8.5 14.9 22.9 26.4 33.7 34.9 35.1 30.7 24.5 19.9 14.1 22.6 1999 8.3 13.5 14.9 21.9 29.0 34.5 34.1 35.8 30.8 25.4 14.2 11.0 22.8 2000 8.0 10.1 14.6 24.9 30.3 33.3 35.5 35.1 31.6 21.5 13.3 9.1 22.3 MEAN 6.7 9.3 12.8 21.4 26.3 32.6 35.2 34.8 30.3 23.1 14.9 9.7 21.4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 6.9 8.8 8.7 11.0 12.4 14.1 13.3 11.9 13.1 9.8 7.7 6.1 10.3 1992 6.7 7.2 7.4 9.9 9.8 11.4 12.7 11.3 10.9 11.9 8.7 6.2 9.5 1993 6.4 7.1 8.0 8.8 9.3 10.7 11.2 10.0 10.6 9.0 6.6 7.1 8.7 1994 6.9 7.8 8.4 9.4 9.6 12.5 13.1 12.3 10.6 9.3 7.9 7.4 9.6 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 6.3 7.7 6.9 9.0 10.5 11.6 10.7 10.8 10.5 9.7 8.6 8.3 9.2 1997 8.0 9.3 8.7 9.4 10.4 11.0 12.6 11.0 10.9 9.6 7.0 7.3 9.6 1998 6.9 8.2 9.4 10.4 10.1 11.0 10.9 10.9 10.4 10.1 9.6 8.1 9.7 1999 7.3 9.1 9.1 10.3 11.5 11.8 12.5 9.8 11.2 9.4 8.7 8.0 9.9 2000 7.3 8.7 9.0 10.0 11.2 12.2 11.2 10.5 10.6 8.9 7.7 6.5 9.5 MEAN 7.0 8.2 8.4 9.8 10.5 11.8 12.0 10.9 11.0 9.7 8.1 7.2 9.6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 4.08 3.43 5.23 6.27 6.20 11.32 15.83 12.45 8.90 5.78 4.25 3.11 7.24 1992 2.64 2.74 3.50 5.33 7.08 9.71 11.48 12.70 5.72 5.40 4.57 3.85 6.23 1993 2.69 3.19 2.99 4.62 6.03 7.47 9.32 8.48 6.94 4.79 4.99 4.15 5.47 1994 3.63 2.98 4.18 5.47 6.08 6.79 8.64 7.79 5.37 6.61 5.61 3.09 5.52 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 3.02 3.98 4.25 5.61 7.79 7.86 8.30 6.91 5.31 4.96 3.36 3.30 5.39 1997 2.87 2.18 3.44 4.20 5.18 6.86 8.66 6.65 5.64 4.94 4.82 4.00 4.95 1998 3.00 3.33 4.00 5.50 7.10 8.19 9.17 8.79 6.82 5.26 4.45 4.25 5.82 1999 3.60 3.27 3.70 5.33 5.20 6.49 8.79 6.84 6.23 5.02 4.62 3.80 5.24 2000 2.75 2.76 3.10 4.37 4.23 6.27 6.76 6.99 6.58 5.42 4.56 4.22 4.83 MEAN 3.15 3.10 3.83 5.20 6.10 7.89 9.67 8.63 6.40 5.36 4.59 3.76 5.63 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 4.22 4.08 5.50 5.36 6.40 12.57 20.94 16.44 10.64 6.21 4.14 3.58 8.34 1992 3.03 3.26 3.92 4.93 7.76 9.47 11.64 15.73 7.10 4.57 5.07 3.58 6.67 1993 3.26 3.78 3.13 4.39 5.41 7.51 8.77 7.71 6.86 4.63 5.30 4.37 5.43 1994 4.03 3.29 3.88 5.08 5.03 6.10 7.79 7.88 5.37 6.44 6.11 3.57 5.38 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 3.45 4.34 4.56 5.09 7.11 6.82 7.48 6.21 5.08 4.98 3.70 3.36 5.18 1997 2.73 2.18 3.34 3.97 5.04 5.96 7.54 5.96 4.79 4.49 4.88 4.42 4.61 1998 3.31 3.43 4.00 5.19 6.88 7.65 8.45 7.84 6.25 5.20 4.48 4.21 5.58 1999 3.67 3.34 3.50 4.74 4.49 5.46 7.87 6.86 6.57 5.12 4.74 4.29 5.06 2000 3.15 2.96 2.89 4.35 3.94 4.55 6.17 6.28 6.43 5.58 4.71 4.55 4.63 MEAN 3.43 3.41 3.86 4.80 5.79 7.35 9.63 8.99 6.57 5.25 4.80 4.00 5.65 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 4.10 3.83 5.29 5.53 6.36 13.65 21.12 18.13 10.68 5.73 4.07 3.54 8.50 1992 2.78 3.22 3.78 4.69 7.54 9.33 12.02 14.42 6.42 5.77 5.05 4.07 6.59 1993 3.07 3.61 2.93 3.98 5.16 6.86 8.01 7.92 6.34 4.69 5.35 4.17 5.17 1994 4.03 3.13 3.45 4.62 4.92 5.82 7.37 7.37 5.32 6.72 6.33 3.66 5.23 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 3.55 4.43 4.53 5.25 6.83 7.20 7.02 6.17 4.71 5.05 3.91 3.73 5.20 1997 2.96 2.15 3.32 4.06 4.77 5.36 6.42 5.63 4.71 4.68 5.04 4.39 4.46 1998 3.16 3.45 3.89 5.05 6.58 7.18 7.92 7.42 6.20 5.03 4.84 4.68 5.45 1999 3.86 3.42 3.51 4.31 4.46 5.06 7.17 6.47 5.44 4.87 4.34 4.30 4.77 2000 3.18 2.76 2.66 3.51 3.69 4.24 5.58 5.91 5.95 5.23 4.48 4.47 4.31 MEAN 3.41 3.34 3.71 4.56 5.59 7.19 9.19 8.83 6.20 5.31 4.83 4.12 5.52 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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 1991 -4.0 1 -8.6 13 -7.0 11 3.0 13 6.4 5 11.0 8 15.8 21 15.0 13 9.0 27 6.0 29 2.0 27 -3.6 17 -8.6 1992 -8.4 28 -6.4 12 -6.4 1 3.0 19 2.0 5 14.8 13 17.0 12 13.0 30 10.2 30 7.0 18 -1.6 28 -5.0 29 -8.4 1993 -7.0 15 -7.4 16 -5.0 23 6.0 23 7.0 9 12.4 22 17.4 13 18.2 24 14.8 26 7.4 8 -2.4 30 -3.0 6 -7.4 1994 -1.0 26 -5.0 4 2.0 2 2.0 5 8.0 7 10.6 5 14.8 1 19.4 25 12.8 16 8.4 26 0.0 11 -8.8 7 -8.8 1995 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1996 -8.0 18 -2.6 3 -3.0 1 1.4 4 10.4 2 13.6 12 18.4 15 18.8 29 14.4 24 7.0 17 0.8 12 -0.4 3 -8.0 1997 -9.0 29 -7.0 7 -4.4 8 0.6 12 9.0 6 16.6 2 19.4 6 20.0 21 9.6 15 10.0 26 3.0 29 -3.4 27 -9.0 1998 -11.0 14 -6.0 28 -3.0 2 4.4 6 8.4 2 18.2 28 19.6 21 18.8 7 15.6 11 8.8 12 6.6 27 0.4 5 -11.0 1999 -3.0 2 -2.0 22 -1.6 19 3.0 10 9.0 5 17.0 16 15.0 13 19.6 31 11.0 28 7.6 26 -2.0 29 -1.4 5 -3.0 2000 -5.2 18 -4.0 9 -2.0 16 7.0 2 13.0 11 9.0 13 21.0 4 20.0 1 16.6 20 9.0 5 1.0 11 0.0 16 -5.2 LOW. -11.0 14 -8.6 13 -7.0 11 0.6 12 2.0 5 9.0 13 14.8 1 13.0 30 9.0 27 6.0 29 -2.4 30 -8.8 7 -11.0 YEAR 1998 1991 1991 1997 1992 2000 1994 1992 1991 1991 1993 1994 1998 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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 1991 10.0 31 13.0 27 20.0 30 28.0 22 30.0 29 37.0 30 38.0 7 38.8 6 36.0 8 25.0 6 19.0 11 13.0 1 38.8 1992 7.8 19 13.0 22 18.6 29 27.0 13 30.0 30 36.4 30 39.4 5 36.4 25 32.0 25 27.4 4 21.0 1 13.8 2 39.4 1993 12.4 29 15.0 28 21.6 31 28.4 19 30.4 20 37.0 28 38.0 3 37.0 14 35.4 5 30.4 1 17.5 2 15.0 25 38.0 1994 16.4 3 15.4 27 22.8 31 30.0 22 31.8 30 35.4 16 40.0 30 39.4 1 32.0 1 25.4 1 21.0 3 13.6 19 40.0 1995 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1996 12.0 2 17.0 8 22.4 31 24.8 22 33.4 31 36.4 4 36.8 3 37.6 23 36.0 10 26.4 24 20.4 3 18.6 27 37.6 1997 15.4 7 16.0 18 19.0 24 29.6 26 33.6 28 36.2 27 40.0 29 40.2 14 36.2 1 29.4 4 17.6 5 13.6 7 40.2 1998 9.4 26 16.6 6 21.0 24 31.0 17 32.0 11 38.0 28 40.0 12 39.5 19 35.5 2 30.8 1 23.4 9 19.4 14 40.0 1999 11.6 31 18.4 28 20.4 26 28.6 30 36.2 31 37.4 28 39.0 4 38.4 1 34.6 13 30.4 1 20.8 19 17.4 29 39.0 2000 17.4 1 16.6 24 19.8 21 29.8 20 35.2 26 38.2 30 39.0 11 39.0 3 36.6 8 26.2 11 21.8 3 12.4 4 39.0 HIG. 17.4 1 18.4 28 22.8 31 31.0 17 36.2 31 38.2 30 40.0 30 40.2 14 36.6 8 30.8 1 23.4 9 19.4 14 40.2 YEAR 2000 1999 1994 1998 1999 2000 1994 1997 2000 1998 1998 1998 1997 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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 1991 9.0 22 11.0 22 58.0 25 39.0 5 3.0 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 16.8 30 13.2 3 58.0 1992 7.8 31 7.6 25 20.0 15 13.1 27 18.7 2 9.0 4 0.3 8 5.0 29 0.0 ** 0.0 ** 6.4 8 13.2 15 20.0 1993 20.2 8 29.0 21 18.0 8 5.7 8 2.4 13 1.0 3 0.0 ** 0.0 ** 0.0 ** 5.4 28 12.5 3 13.0 16 29.0 1994 10.4 16 33.7 1 7.4 12 24.8 30 11.2 6 0.4 5 0.0 ** 0.0 ** 0.0 ** 7.0 8 22.5 26 1.7 1 33.7 1995 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1996 8.0 5 12.0 28 43.0 2 27.0 3 6.0 11 1.0 27 0.0 ** 0.0 ** 0.0 ** 8.8 16 0.2 9 9.0 22 43.0 1997 11.0 16 3.0 21 12.0 30 13.0 5 0.3 18 3.0 16 1.0 6 0.0 ** 0.0 ** 2.0 21 14.0 2 17.0 10 17.0 1998 15.0 13 18.0 12 19.0 30 11.0 6 6.0 20 0.0 ** 0.0 ** 2.0 4 3.0 26 3.0 11 2.0 11 26.0 4 26.0 1999 13.0 10 7.3 8 7.0 17 3.0 23 4.0 10 0.0 ** 4.0 14 0.0 ** 1.0 27 10.0 27 16.0 11 7.0 10 16.0 2000 18.0 28 25.0 14 4.9 23 0.3 9 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.0 6 19.0 17 6.0 6 32.0 11 32.0 HIG. 20.2 8 33.7 1 58.0 25 39.0 5 18.7 2 9.0 4 4.0 14 5.0 29 3.0 26 19.0 17 22.5 26 32.0 11 58.0 YEAR 1993 1994 1991 1991 1992 1992 1999 1992 1998 2000 1994 2000 1991 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1991 26.5 41.0 165.5 48.0 6.0 0.0 0.0 0.0 0.0 0.0 25.6 23.9 336.5 69.2 16.0 0.0 14.7 1992 30.0 23.5 61.7 27.1 48.7 18.2 0.3 5.0 0.0 0.0 6.4 34.5 255.4 45.1 36.8 2.1 16.0 1993 34.2 94.9 55.8 18.1 8.4 1.2 0.0 0.0 0.0 5.7 71.0 24.0 313.3 59.0 8.8 0.0 32.1 1994 52.8 54.1 20.7 29.8 22.6 0.7 0.0 0.0 0.0 18.3 106.5 4.2 309.7 41.2 17.1 0.0 41.7 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1996 50.2 62.3 148.0 55.8 17.8 1.0 0.0 0.0 0.0 14.8 0.2 15.4 365.5 71.3 20.4 0.0 8.3 1997 11.0 5.0 49.9 16.1 0.3 3.6 1.0 0.0 0.0 2.6 33.7 48.1 171.3 38.5 11.7 0.6 49.3 1998 42.8 33.5 61.9 38.0 26.8 0.0 0.0 2.6 5.0 4.0 3.3 41.0 258.9 53.4 25.0 2.9 18.7 1999 36.0 10.8 28.5 8.7 4.5 0.0 12.0 0.0 1.0 18.4 50.4 21.2 191.5 39.3 6.9 6.8 47.0 2000 35.0 38.2 12.4 0.9 0.0 0.0 0.0 0.0 3.2 40.2 22.6 93.3 245.8 34.8 0.4 1.3 63.5 MEAN 35.4 40.4 67.2 26.9 15.0 2.7 1.5 0.8 1.0 11.6 35.5 34.0 272.0 52.6 16.4 1.2 29.8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 7 8 12 3 3 0 0 0 0 0 7 3 43 1992 6 9 12 9 15 8 2 1 0 0 1 8 71 1993 8 9 9 7 6 2 0 0 0 2 13 4 60 1994 9 4 8 7 5 2 0 0 2 8 12 4 61 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 11 13 13 10 9 1 0 0 0 2 1 4 64 1997 1 2 10 6 1 3 1 0 0 2 7 8 41 1998 9 7 11 7 7 0 0 3 2 2 3 3 54 1999 8 4 8 6 3 0 3 0 1 5 6 8 52 2000 8 5 6 3 0 0 0 0 2 7 8 12 51 MEAN 7 7 10 6 5 2 1 0 1 3 6 6 54 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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 1991 6 8 11 3 3 0 0 0 0 0 5 3 39 1992 5 7 9 6 9 5 0 1 0 0 1 6 49 1993 4 7 8 7 4 1 0 0 0 1 10 3 45 1994 8 4 6 3 4 0 0 0 0 5 10 2 42 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 11 11 13 8 5 1 0 0 0 2 0 3 54 1997 1 2 6 2 0 1 1 0 0 1 7 7 28 1998 9 7 9 7 6 0 0 1 2 2 2 3 48 1999 5 3 6 4 1 0 3 0 1 3 6 5 37 2000 7 4 4 0 0 0 0 0 1 6 5 9 36 MEAN 6 6 8 4 4 1 0 0 0 2 5 5 41 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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 1991 0 2 7 1 0 0 0 0 0 0 1 1 12 1992 0 0 2 1 2 0 0 0 0 0 0 2 7 1993 1 4 3 0 0 0 0 0 0 0 3 1 12 1994 1 1 0 1 1 0 0 0 0 0 5 0 9 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 0 3 4 1 0 0 0 0 0 0 0 0 8 1997 1 0 1 1 0 0 0 0 0 0 1 3 7 1998 1 1 2 2 0 0 0 0 0 0 0 2 8 1999 1 0 0 0 0 0 0 0 0 1 3 0 5 2000 1 2 0 0 0 0 0 0 0 2 0 3 8 MEAN 1 1 2 1 0 0 0 0 0 0 1 1 7 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 78 72 77 55 50 63 70 56 52 49 61 66 62 1992 69 60 66 60 64 52 45 60 35 46 54 68 57 1993 67 62 51 44 42 35 39 36 35 41 71 72 50 1994 65 59 54 46 40 38 38 34 35 59 65 65 50 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 69 73 71 57 51 39 36 30 28 44 47 54 50 1997 54 43 59 41 36 33 37 26 36 37 65 73 45 1998 68 71 59 50 50 35 39 38 39 44 47 61 50 1999 70 51 53 48 33 30 44 27 37 37 65 65 47 2000 56 53 43 32 23 32 28 30 35 49 65 75 43 MEAN 66 60 59 48 43 40 42 37 37 45 60 67 50 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 69 68 64 34 34 45 62 49 40 37 42 60 50 1992 58 50 53 38 51 34 32 51 29 26 41 49 43 1993 63 54 37 30 28 26 27 25 24 29 60 54 38 1994 55 47 37 32 25 22 23 22 23 40 53 54 36 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 61 60 61 40 34 23 23 19 18 29 34 36 37 1997 35 28 40 28 24 20 21 16 19 22 48 58 30 1998 59 54 43 32 34 23 24 23 23 28 31 41 35 1999 53 35 36 30 18 17 25 19 25 27 47 52 32 2000 48 40 28 22 15 15 18 18 23 37 48 62 31 MEAN 56 48 44 32 29 25 28 27 25 31 45 52 37 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 73 67 64 36 35 43 55 49 38 38 46 68 51 1992 64 52 53 38 47 34 31 47 27 36 46 62 45 1993 63 58 36 28 28 23 24 24 22 31 65 59 38 1994 58 46 32 30 24 20 19 19 22 45 60 61 36 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 68 62 60 41 33 23 20 18 16 32 40 46 38 1997 40 28 39 28 22 16 15 14 18 25 53 62 30 1998 58 54 41 31 32 21 22 20 23 30 38 53 35 1999 61 39 36 27 18 15 21 17 20 28 51 59 33 2000 53 40 27 19 14 14 15 17 22 36 52 66 31 MEAN 60 50 43 31 28 23 25 25 23 33 50 60 38 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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 1991 1 10 2 0 0 0 0 0 0 0 0 0 13 1992 15 3 6 0 0 0 0 0 0 0 0 2 26 1993 12 3 1 0 0 0 0 0 0 0 0 0 16 1994 0 3 0 0 0 0 0 0 0 0 0 9 12 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 7 0 0 0 0 0 0 0 0 0 0 0 7 1997 2 5 2 0 0 0 0 0 0 0 0 0 9 1998 7 4 0 0 0 0 0 0 0 0 0 0 11 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 0 3 MEAN 5 3 1 0 0 0 0 0 0 0 0 1 10 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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 1991 0 0 0 0 0 8 17 20 10 0 0 0 55 1992 0 0 0 0 1 9 23 17 1 0 0 0 51 1993 0 0 0 0 2 17 23 23 16 1 0 0 82 1994 0 0 0 1 2 14 20 27 3 0 0 0 67 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 0 0 0 0 3 14 26 26 22 0 0 0 91 1997 0 0 0 0 3 18 28 30 8 1 0 0 88 1998 0 0 0 0 2 25 29 26 14 4 0 0 100 1999 0 0 0 0 7 20 19 30 14 2 0 0 92 2000 0 0 0 0 8 16 31 28 16 0 0 0 99 MEAN 0 0 0 0 3 16 24 25 12 1 0 0 81 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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 1991 0 2 0 0 0 0 0 0 0 0 0 0 2 1992 5 0 1 0 0 0 0 0 0 0 0 2 8 1993 2 0 0 0 0 0 0 0 0 0 0 0 2 1994 0 0 0 0 0 0 0 0 0 0 0 2 2 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 3 0 0 0 0 0 0 0 0 0 0 0 3 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 1 0 0 0 0 0 0 0 0 0 0 1 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 1 0 0 0 0 0 0 0 0 0 0 0 1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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 1991 0 0 0 0 1 28 31 30 20 0 0 0 110 1992 0 0 0 0 1 16 31 26 10 0 0 0 84 1993 0 0 0 0 4 21 31 29 20 1 0 0 106 1994 0 0 0 2 8 25 31 31 7 0 0 0 104 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 0 0 0 0 10 26 31 30 23 0 0 0 120 1997 0 0 0 0 6 26 31 31 17 0 0 0 111 1998 0 0 0 3 8 30 29 31 20 2 0 0 123 1999 0 0 0 0 10 30 27 31 22 4 0 0 124 2000 0 0 0 0 20 24 31 31 24 0 0 0 130 MEAN 0 0 0 1 8 25 30 30 18 1 0 0 113 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 0 0 0 1 0 0 0 0 0 1 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 1 1 0 0 0 0 2 1998 0 0 0 0 0 0 1 0 0 0 0 0 1 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 24 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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 -------------- 1991 19 17 5 0 0 0 0 0 0 0 0 16 57 12 6 3 16 1992 27 18 13 0 0 0 0 0 0 0 2 6 66 11 27 3 25 1993 25 11 4 0 0 0 0 0 0 0 5 5 50 11 14 3 23 1994 9 12 0 0 0 0 0 0 0 0 1 16 38 11 11 2 25 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1996 20 8 4 0 0 0 0 0 0 0 0 1 33 12 3 3 19 1997 7 15 7 0 0 0 0 0 0 0 0 6 35 12 22 3 21 1998 21 13 3 0 0 0 0 0 0 0 0 0 37 1 3 3 3 1999 9 2 2 0 0 0 0 0 0 0 2 5 20 11 29 3 19 2000 18 11 3 0 0 0 0 0 0 0 0 2 34 12 16 3 16 MEAN 17 12 5 0 0 0 0 0 0 0 1 6 41 11 11 3 25 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 3.7 3.5 8.4 17.8 20.3 26.8 30.0 29.8 25.7 17.9 9.6 2.8 16.4 1992 0.0 3.5 5.3 14.7 17.5 26.5 31.7 27.8 24.3 18.8 12.5 5.2 15.7 1993 1.2 4.4 8.2 16.6 21.2 28.2 30.0 29.5 27.4 17.9 8.3 6.7 16.6 1994 5.7 5.2 11.9 18.0 22.2 27.3 31.0 31.3 23.7 17.5 12.4 3.5 17.5 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 1.9 6.1 7.2 15.0 22.8 28.2 29.9 30.6 28.1 18.2 10.8 8.1 17.2 1997 6.1 5.4 7.9 16.3 22.4 28.8 32.1 32.6 25.5 21.2 10.6 6.1 17.9 1998 2.0 4.3 10.1 18.0 22.1 29.9 30.7 30.8 26.5 19.6 15.5 10.0 18.3 1999 4.7 9.3 10.8 17.5 24.6 30.0 29.2 31.5 26.0 21.0 9.8 7.0 18.5 2000 4.2 6.1 10.5 20.6 26.0 28.5 30.9 30.8 27.1 17.7 9.5 5.8 18.1 MEAN 3.3 5.3 8.9 17.2 22.1 28.2 30.6 30.5 26.0 18.9 11.0 6.1 17.4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 -1.0 -2.1 2.2 3.1 4.5 14.5 21.2 17.5 10.8 3.8 -1.0 -3.8 5.8 1992 -6.5 -5.5 -3.1 1.1 7.1 10.8 13.9 16.6 4.9 2.2 0.9 -2.8 3.3 1993 -5.4 -3.7 -6.1 -0.8 2.8 6.8 9.7 8.6 5.8 0.6 1.6 -0.6 1.6 1994 -2.4 -5.2 -2.4 1.6 2.4 4.7 8.4 7.6 2.2 5.4 3.8 -3.9 1.8 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 -4.2 -0.7 -0.0 1.9 7.0 6.9 7.7 5.1 1.0 1.5 -2.8 -3.9 1.6 1997 -6.4 -10.5 -4.1 -1.7 1.6 4.4 7.2 4.1 1.4 0.6 1.1 -0.6 -0.2 1998 -5.1 -3.8 -2.2 2.0 6.0 7.8 9.4 8.3 5.0 2.0 0.3 -0.2 2.5 1999 -2.7 -4.2 -3.4 0.4 0.8 3.3 8.2 5.8 4.3 1.6 0.1 -1.3 1.1 2000 -5.7 -6.3 -7.0 -1.9 -2.0 1.2 4.1 4.9 5.0 2.5 0.3 -0.3 -0.4 MEAN -4.4 -4.7 -2.9 0.6 3.4 6.7 10.0 8.7 4.5 2.2 0.5 -1.9 1.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 4.13 3.83 5.34 5.72 6.32 12.51 19.51 15.68 10.07 5.90 4.15 3.41 8.05 1992 2.82 3.07 3.74 4.99 7.46 9.50 11.71 14.28 6.41 5.25 4.90 3.84 6.50 1993 3.01 3.52 3.02 4.33 5.53 7.28 8.70 8.06 6.72 4.71 5.21 4.23 5.36 1994 3.89 3.13 3.84 5.06 5.34 6.24 7.93 7.68 5.35 6.57 6.02 3.44 5.37 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 3.34 4.25 4.44 5.34 7.24 7.29 7.60 6.43 5.03 5.00 3.66 3.46 5.26 1997 2.85 2.17 3.42 4.08 5.01 6.06 7.54 6.08 5.06 4.70 4.91 4.29 4.68 1998 3.16 3.42 3.96 5.25 6.85 7.67 8.52 8.00 6.42 5.17 4.58 4.38 5.61 1999 3.71 3.36 3.57 4.81 4.74 5.67 7.94 6.72 6.08 5.00 4.57 4.13 5.03 2000 3.05 2.83 2.88 4.07 3.95 5.02 6.17 6.39 6.32 5.41 4.58 4.41 4.59 MEAN 3.33 3.29 3.80 4.85 5.83 7.47 9.52 8.81 6.39 5.30 4.73 3.95 5.61 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 5.77 5.35 7.45 8.01 8.85 17.39 26.81 21.65 14.03 8.27 5.81 4.76 11.18 1992 3.93 4.29 5.22 6.98 10.42 13.29 16.35 19.80 9.00 7.36 6.85 5.36 9.07 1993 4.20 4.92 4.22 6.07 7.76 10.22 12.20 11.31 9.44 6.60 7.28 5.91 7.51 1994 5.44 4.38 5.37 7.09 7.51 8.77 11.14 10.78 7.52 9.20 8.40 4.81 7.53 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 4.66 5.94 6.21 7.48 10.15 10.24 10.67 9.04 7.09 7.01 5.13 4.84 7.37 1997 3.99 3.04 4.79 5.72 7.04 8.53 10.59 8.57 7.12 6.61 6.87 5.99 6.57 1998 4.40 4.78 5.55 7.36 9.60 10.77 11.95 11.23 9.02 7.25 6.42 6.13 7.87 1999 5.18 4.71 5.00 6.75 6.67 7.99 11.14 9.46 8.55 7.03 6.39 5.77 7.05 2000 4.26 3.96 4.03 5.72 5.57 7.07 8.69 9.00 8.88 7.58 6.41 6.16 6.44 MEAN 4.65 4.60 5.32 6.80 8.18 10.47 13.28 12.32 8.96 7.43 6.62 5.53 7.85 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 2.26 2.97 4.04 13.16 15.97 19.00 16.98 21.45 20.58 12.66 6.41 2.94 11.53 1992 2.37 3.81 4.17 10.43 10.79 22.39 31.59 18.55 22.05 14.81 8.21 3.67 12.74 1993 2.65 3.70 7.25 13.30 18.25 28.97 30.93 30.62 27.93 14.40 4.15 4.18 15.53 1994 3.93 4.75 8.93 14.50 20.12 28.66 35.27 36.15 22.36 11.25 6.25 3.43 16.30 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 2.64 3.82 4.40 10.27 18.55 29.02 32.33 35.91 32.05 14.43 8.32 6.19 16.49 1997 5.73 6.38 6.36 13.87 20.83 31.93 38.81 41.57 26.35 19.27 6.18 3.59 18.41 1998 2.78 4.11 7.40 14.35 17.95 32.16 33.24 34.30 26.43 16.49 11.67 6.44 17.28 1999 3.54 7.21 8.42 13.82 25.55 35.43 30.77 37.52 26.22 18.79 6.14 4.52 18.16 2000 4.30 5.78 9.00 19.25 28.61 33.47 36.78 36.33 27.86 13.24 5.80 3.18 18.63 MEAN 3.36 4.73 6.66 13.66 19.62 29.00 31.86 32.49 25.76 15.04 7.01 4.24 16.12 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 73 68 68 42 40 51 63 51 43 41 50 64 55 1992 64 54 58 45 54 40 36 53 30 36 47 60 48 1993 64 58 41 34 32 28 30 29 27 34 66 62 42 1994 60 51 41 36 30 26 27 25 27 48 59 60 41 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 66 65 64 46 39 29 26 22 21 35 40 46 42 1997 43 33 47 32 27 23 24 19 25 28 55 65 35 1998 62 59 48 38 39 26 28 27 28 34 38 52 40 1999 62 42 42 35 23 20 30 21 27 31 54 59 37 2000 53 44 33 24 17 20 20 22 26 41 55 68 35 MEAN 61 53 49 37 33 29 32 30 28 36 52 60 42 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 85 80 80 56 54 66 76 62 54 51 62 77 67 1992 74 65 70 65 66 53 46 64 36 47 54 73 59 1993 70 69 56 45 43 36 39 37 35 43 76 74 52 1994 70 63 56 47 40 38 38 34 36 60 68 70 52 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 73 75 75 58 52 39 36 30 29 45 51 59 52 1997 56 44 62 43 37 33 38 26 37 37 66 78 46 1998 73 74 60 50 50 35 39 38 39 45 48 63 51 1999 73 56 55 50 33 30 44 27 37 40 67 70 49 2000 62 57 44 33 23 32 29 30 35 50 68 77 45 MEAN 71 65 62 50 44 40 43 39 38 46 62 71 53 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 62 57 58 30 28 37 50 40 33 33 40 54 44 1992 54 44 48 30 44 31 29 45 26 25 40 48 39 1993 58 49 30 25 24 22 23 23 21 26 56 51 34 1994 51 38 30 27 21 18 19 19 21 38 50 51 32 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 57 55 55 36 30 22 20 17 15 27 31 35 33 1997 33 25 35 25 20 16 15 14 17 21 47 53 27 1998 52 48 37 28 30 21 21 20 21 28 30 40 31 1999 51 32 32 25 16 14 21 17 20 24 44 49 29 2000 45 35 25 17 13 13 14 16 20 34 45 61 28 MEAN 51 43 39 27 25 22 24 23 22 28 43 49 33 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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 1991 3 4 8 2 0 0 0 0 0 0 1 2 20 1992 4 1 4 1 2 1 0 1 0 0 1 2 17 1993 2 5 4 1 0 0 0 0 0 1 7 2 22 1994 5 3 1 1 2 0 0 0 0 2 7 0 21 1995 *** *** *** *** *** *** *** *** *** *** *** *** *** 1996 4 7 9 4 1 0 0 0 0 2 0 1 28 1997 1 0 6 1 0 0 0 0 0 0 2 3 13 1998 3 2 4 4 4 0 0 0 0 0 0 2 19 1999 3 1 4 0 0 0 0 0 0 2 4 2 16 2000 2 2 0 0 0 0 0 0 0 3 3 4 14 MEAN 3 3 4 2 1 0 0 0 0 1 3 2 19 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. HIGHEST AND LOWEST LIMITS FOR 10 YEARS DURING 1991-2000 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 9.4 10.6 15.0 23.4 28.4 32.2 34.0 34.4 35.0 23.8 15.4 11.6 1 YEAR - DAY 1994- 4 2000-25 1991-30 1994-23 1999-31 1998-27 1994-30 1997-14 1996-13 1998- 2 1994- 4 1998-13 LOW. DRY 03 -10.0 -7.4 -6.4 0.6 4.0 12.4 16.0 15.4 10.2 8.0 -2.0 -8.2 2 YEAR - DAY 1998-14 1993-16 1992- 1 1997-12 1992- 2 1994- 5 1999-13 1992-30 1997-15 1991-29 1993-14 1994- 7 HIG. WET 03 8.4 8.0 11.2 18.0 17.4 23.6 27.0 28.8 23.6 13.2 11.2 7.2 3 YEAR - DAY 1994- 4 1998- 8 1991-31 1991-27 1994-31 1991-28 1991-23 1991- 6 1991- 7 1994- 2 1992- 8 1998- 1 LOW. WET 03 -10.6 -9.4 -8.4 -2.2 3.6 7.6 11.0 11.0 7.2 3.0 -4.0 -9.2 4 YEAR - DAY 1998-14 1997- 7 1992- 1 1997-12 1992- 2 2000-14 1994- 1 1997-29 1997-15 1996-28 1992-28 1994- 7 HIG. DRY 09 15.4 17.4 21.4 28.0 34.0 36.8 38.8 38.8 35.6 29.4 22.2 17.6 5 YEAR - DAY 1994- 3 1999-28 1996-31 1994-22 1999-31 1999-14 1994-30 1997-14 2000- 8 1993- 1 1998- 1 1998-14 LOW. DRY 09 -3.2 -3.2 -2.0 5.6 5.2 20.4 24.6 22.4 18.4 8.4 2.4 -2.0 6 YEAR - DAY 1996-17 1991-12 1992-10 1996- 5 1992- 2 2000-13 1999-15 1992-31 1992-30 1999-26 1993-29 1991-13 HIG. WET 09 10.0 9.4 12.2 17.8 20.0 26.0 32.0 32.0 26.0 18.6 13.0 9.6 7 YEAR - DAY 1994- 3 1996-10 1991-29 2000-10 1992-30 1991-11 1991- 8 1991- 4 1991- 1 1991-20 1993- 2 1998-14 LOW. WET 09 -5.0 -3.6 -2.8 1.2 4.8 10.4 14.4 14.2 10.4 7.2 0.0 -4.2 8 YEAR - DAY 1992-26 1997- 1 1992-10 1997-12 1992- 2 2000-14 1996-15 1997-29 1994-21 1999-26 1993-15 1992-28 HIG. DRY 15 13.8 16.4 21.2 29.0 36.0 36.4 39.4 39.8 35.0 28.2 21.4 15.6 9 YEAR - DAY 2000- 2 1999-28 1994-31 1998-15 1999-31 2000-23 1997-14 1997-14 1991- 9 1993- 1 1998- 2 1996-27 LOW. DRY 15 -5.2 -4.0 -1.0 4.8 7.0 19.0 25.4 20.0 18.2 9.8 1.4 -4.2 10 YEAR - DAY 1992- 8 1991-13 1992- 9 1997-11 1992- 2 1992- 2 1999-13 1992-29 1991-26 2000-15 1993-30 1994- 5 HIG. WET 15 9.4 9.2 12.8 19.0 22.0 28.4 34.6 34.0 29.0 17.2 13.0 9.0 11 YEAR - DAY 1994- 4 1996-10 1998-29 1991-17 1991-15 1991- 3 1991- 5 1991- 4 1991- 5 1999-12 1992-17 1996-17 LOW. WET 15 -5.7 -5.2 -2.4 1.4 6.2 10.8 14.0 15.0 11.4 7.0 -2.4 -5.6 12 YEAR - DAY 1992- 8 1997- 6 1992-11 1997-11 1992- 2 2000-13 1999-16 1992-31 1994-21 1996-16 1992-27 1994- 5 HIG. MIN. 9.0 9.2 13.4 21.4 25.0 28.0 31.2 30.2 27.8 22.0 14.2 11.4 13 YEAR - DAY 1994- 4 1999-27 1994-31 1994-25 1999-31 1993-10 1997-30 1997-18 1997- 3 1999-12 1994- 4 1998-13 LOW. MIN. -11.0 -8.6 -7.0 0.6 2.0 9.0 14.8 13.0 9.0 6.0 -2.4 -8.8 14 YEAR - DAY 1998-14 1991-13 1991-11 1997-12 1992- 5 2000-13 1994- 1 1992-30 1991-27 1991-29 1993-30 1994- 7 HIG. MAX. 17.4 18.4 22.8 31.0 36.2 38.2 40.0 40.2 36.6 30.8 23.4 19.4 15 YEAR - DAY 2000- 1 1999-28 1994-31 1998-17 1999-31 2000-30 1994-30 1997-14 2000- 8 1998- 1 1998- 9 1998-14 LOW. MAX. -2.0 0.0 0.0 6.6 10.4 24.4 27.8 25.4 21.2 12.0 4.4 -1.2 16 YEAR - DAY 1992-30 1991-12 1992-11 1996- 5 1992- 3 2000-13 1999-14 1992-31 1991-26 2000-15 1993-30 1994- 5 HIG. PPTN 20.2 33.7 58.0 39.0 18.7 9.0 4.0 5.0 3.0 19.0 22.5 32.0 17 YEAR - DAY 1993- 8 1994- 1 1991-25 1991- 5 1992- 2 1992- 4 1999-14 1992-29 1998-26 2000-17 1994-26 2000-11 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 10 YEARS DURING 1991-2000 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 11.0 10.2 13.6 14.0 11.6 12.4 13.0 12.0 16.0 11.6 12.0 11.6 18 YEAR - DAY 1998-14 1993-18 1997-21 1992-11 1999-11 1993-22 1998-10 1998-18 1991- 9 1999- 7 1994-13 1993-20 DRY 15 - DRY 09 7.6 5.6 7.0 7.2 8.0 8.8 8.0 8.4 5.8 6.8 8.2 5.6 19 YEAR - DAY 1992- 9 1991- 2 1991-15 1992-13 1991-24 1992- 2 1991-22 1992-29 2000-30 1994-31 1992-21 1992- 3 DRY 15 - DRY 03 9.2 11.4 14.2 12.6 12.6 14.2 13.6 14.0 18.0 11.0 10.6 8.6 20 YEAR - DAY 1997-29 1998-28 1997-21 1999-10 1999-10 1991-14 1997-13 1998-18 1991- 9 1996- 7 1992-17 1993-29 WET 09 - WET 03 8.4 8.6 8.8 9.2 7.8 8.8 13.2 14.8 9.0 9.2 8.2 7.6 21 YEAR - DAY 1998-14 2000- 4 1992- 1 1999- 9 1991-16 1991-13 1991- 5 1991- 5 1991- 4 1991-20 1996-19 1994-28 WET 15 - WET 09 6.0 5.0 4.8 8.0 9.0 9.6 9.4 11.6 8.0 6.6 6.8 5.8 22 YEAR - DAY 1992- 9 1991- 5 1991-19 2000-10 1991-15 1991- 3 1991-23 1991- 7 1991- 1 1991-20 1996-19 1991-14 WET 15 - WET 03 7.2 8.0 8.6 9.0 11.0 14.0 18.4 15.8 13.0 5.8 8.4 6.4 23 YEAR - DAY 1994-10 1992-18 1997-21 1991-17 1991-15 1991- 3 1991- 5 1991- 5 1991- 5 1992-25 1992-17 1994-28 DAY BY DAY DRY 03 9.8 11.4 10.4 8.0 11.6 10.4 8.4 9.0 12.8 10.2 11.8 7.4 24 YEAR - DAY 1998-14 1998-10 1991-11 1994- 7 1999-21 1991- 7 1994-30 2000- 8 1996-14 1992-15 1993-14 1994- 5 DAY BY DAY WET 03 9.8 8.2 9.0 8.6 8.0 7.0 10.0 11.6 9.6 5.2 9.8 7.0 25 YEAR - DAY 1998-14 1993-16 1991-11 1999- 5 1991-19 1992-13 1991- 6 1991- 6 1991- 8 1996-28 1993-14 1994-21 DAY BY DAY DRY 09 8.4 10.0 9.8 10.8 10.6 6.2 8.0 4.6 6.8 9.4 11.6 9.0 26 YEAR - DAY 1994- 3 1996-27 1993-22 1998-27 1999-21 1998- 1 1994-21 1991-29 1999- 5 1998- 9 1992-26 1991-14 DAY BY DAY WET 09 5.4 7.8 6.6 10.2 6.8 10.0 6.8 12.0 6.6 5.6 8.6 6.6 27 YEAR - DAY 2000-22 1999-21 1998-19 2000-11 1991-16 1991-12 1991-25 1991- 4 1991- 2 1991-20 1992-26 1991-14 DAY BY DAY DRY 15 7.8 8.8 9.8 13.0 11.0 9.0 6.2 9.0 7.2 9.4 9.6 8.4 28 YEAR - DAY 1999- 1 1997-27 1991-25 1996- 3 1991-25 1992- 2 1999-13 1992-29 1991-26 1996-16 1993-14 1994- 5 DAY BY DAY WET 15 6.0 6.6 7.6 7.4 8.6 10.0 14.4 13.6 8.2 5.6 9.2 7.0 29 YEAR - DAY 1999- 1 1997- 6 1998-30 1991-17 1991-15 1991- 4 1991- 5 1991- 4 1991- 6 1999-13 1993-14 1994- 5 DAY BY DAY MIN. 10.0 7.8 10.0 9.0 10.0 12.0 11.2 10.4 14.0 10.6 9.4 9.4 30 YEAR - DAY 1997-29 1991-22 1991-11 1999- 9 1991- 3 1994- 4 1991-21 1999-31 1991- 9 1999-14 1992-26 1994- 5 DAY BY DAY MAX. 8.0 7.0 8.9 8.4 7.0 5.4 5.2 5.0 5.0 8.0 12.6 7.4 31 YEAR - DAY 1994- 3 1991-22 1998- 3 1992-14 1991- 4 2000-25 1999-13 1991-29 1999-27 2000-15 1992-26 1994- 5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. MEAN AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.2 3.1 8.0 16.4 18.6 25.1 28.2 28.3 23.5 16.8 9.6 2.8 15.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.3 -1.3 3.7 10.9 12.4 18.1 21.6 22.3 16.9 11.9 5.7 -0.2 10.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.6 7.5 12.4 21.9 24.8 32.2 34.9 34.2 30.0 21.7 13.4 5.9 20.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 6.9 8.8 8.7 11.0 12.4 14.1 13.3 11.9 13.1 9.8 7.7 6.1 10.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.08 3.43 5.23 6.27 6.20 11.32 15.83 12.45 8.90 5.78 4.25 3.11 7.24 MEAN OF MIXING RATIO AT 09 GMT. 4.22 4.08 5.50 5.36 6.40 12.57 20.94 16.44 10.64 6.21 4.14 3.58 8.34 MEAN OF MIXING RATIO AT 15 GMT. 4.10 3.83 5.29 5.53 6.36 13.65 21.12 18.13 10.68 5.73 4.07 3.54 8.50 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.0 -8.6 -7.0 3.0 6.4 11.0 15.8 15.0 9.0 6.0 2.0 -3.6 -8.6 DAY 1 13 11 13 5 8 21 13 27 29 27 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 13.0 20.0 28.0 30.0 37.0 38.0 38.8 36.0 25.0 19.0 13.0 38.8 DAY 31 27 30 22 29 30 7 6 8 6 11 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.0 11.0 58.0 39.0 3.0 0.0 0.0 0.0 0.0 0.0 16.8 13.2 58.0 DAY 22 22 25 5 4 ** ** ** ** ** 30 3 MONTHLY TOTAL PRECIPITATION IN MM. 26.5 41.0 165.5 48.0 6.0 0.0 0.0 0.0 0.0 0.0 25.6 23.9 336.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 69.2 16.0 0.0 14.7 NO. OF DAYS WITH PRECIPITATION. 7 8 12 3 3 0 0 0 0 0 7 3 43 NO. OF DAYS PRECIPITATION EQUAL 6 8 11 3 3 0 0 0 0 0 5 3 39 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 7 1 0 0 0 0 0 0 1 1 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 72 77 55 50 63 70 56 52 49 61 66 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 68 64 34 34 45 62 49 40 37 42 60 50 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 67 64 36 35 43 55 49 38 38 46 68 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 10 2 0 0 0 0 0 0 0 0 0 13 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 17 20 10 0 0 0 55 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 2 0 0 0 0 0 0 0 0 0 0 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 28 31 30 20 0 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. 19 17 5 0 0 0 0 0 0 0 0 16 57 DATE OF START AND END FREEZING START = 6 DEC. END = 16 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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. 0.3 3.5 5.2 14.1 16.6 24.9 29.7 26.4 23.1 17.6 12.4 5.2 14.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.1 -0.1 1.5 9.1 11.7 19.2 23.3 20.8 17.6 11.7 8.0 2.1 10.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.6 7.1 8.9 19.0 21.5 30.6 36.0 32.1 28.5 23.6 16.7 8.3 19.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 6.7 7.2 7.4 9.9 9.8 11.4 12.7 11.3 10.9 11.9 8.7 6.2 9.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.64 2.74 3.50 5.33 7.08 9.71 11.48 12.70 5.72 5.40 4.57 3.85 6.23 MEAN OF MIXING RATIO AT 09 GMT. 3.03 3.26 3.92 4.93 7.76 9.47 11.64 15.73 7.10 4.57 5.07 3.58 6.67 MEAN OF MIXING RATIO AT 15 GMT. 2.78 3.22 3.78 4.69 7.54 9.33 12.02 14.42 6.42 5.77 5.05 4.07 6.59 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.4 -6.4 -6.4 3.0 2.0 14.8 17.0 13.0 10.2 7.0 -1.6 -5.0 -8.4 DAY 28 12 1 19 5 13 12 30 30 18 28 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.8 13.0 18.6 27.0 30.0 36.4 39.4 36.4 32.0 27.4 21.0 13.8 39.4 DAY 19 22 29 13 30 30 5 25 25 4 1 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.8 7.6 20.0 13.1 18.7 9.0 0.3 5.0 0.0 0.0 6.4 13.2 20.0 DAY 31 25 15 27 2 4 8 29 ** ** 8 15 MONTHLY TOTAL PRECIPITATION IN MM. 30.0 23.5 61.7 27.1 48.7 18.2 0.3 5.0 0.0 0.0 6.4 34.5 255.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 45.1 36.8 2.1 16.0 NO. OF DAYS WITH PRECIPITATION. 6 9 12 9 15 8 2 1 0 0 1 8 71 NO. OF DAYS PRECIPITATION EQUAL 5 7 9 6 9 5 0 1 0 0 1 6 49 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 2 1 2 0 0 0 0 0 0 2 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 60 66 60 64 52 45 60 35 46 54 68 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 58 50 53 38 51 34 32 51 29 26 41 49 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 64 52 53 38 47 34 31 47 27 36 46 62 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 15 3 6 0 0 0 0 0 0 0 0 2 26 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 9 23 17 1 0 0 0 51 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 5 0 1 0 0 0 0 0 0 0 0 2 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 16 31 26 10 0 0 0 84 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 18 13 0 0 0 0 0 0 0 2 6 66 DATE OF START AND END FREEZING START = 27 NOV. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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. 0.9 4.6 8.1 16.0 20.3 26.6 28.5 28.5 25.9 17.1 8.1 6.4 15.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.3 1.1 4.1 11.6 15.7 21.2 22.9 23.5 20.6 12.6 4.8 2.9 11.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.1 8.2 12.1 20.4 25.0 31.9 34.1 33.5 31.2 21.6 11.4 10.0 20.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 6.4 7.1 8.0 8.8 9.3 10.7 11.2 10.0 10.6 9.0 6.6 7.1 8.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.69 3.19 2.99 4.62 6.03 7.47 9.32 8.48 6.94 4.79 4.99 4.15 5.47 MEAN OF MIXING RATIO AT 09 GMT. 3.26 3.78 3.13 4.39 5.41 7.51 8.77 7.71 6.86 4.63 5.30 4.37 5.43 MEAN OF MIXING RATIO AT 15 GMT. 3.07 3.61 2.93 3.98 5.16 6.86 8.01 7.92 6.34 4.69 5.35 4.17 5.17 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.0 -7.4 -5.0 6.0 7.0 12.4 17.4 18.2 14.8 7.4 -2.4 -3.0 -7.4 DAY 15 16 23 23 9 22 13 24 26 8 30 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.4 15.0 21.6 28.4 30.4 37.0 38.0 37.0 35.4 30.4 17.5 15.0 38.0 DAY 29 28 31 19 20 28 3 14 5 1 2 25 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.2 29.0 18.0 5.7 2.4 1.0 0.0 0.0 0.0 5.4 12.5 13.0 29.0 DAY 8 21 8 8 13 3 ** ** ** 28 3 16 MONTHLY TOTAL PRECIPITATION IN MM. 34.2 94.9 55.8 18.1 8.4 1.2 0.0 0.0 0.0 5.7 71.0 24.0 313.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 59.0 8.8 0.0 32.1 NO. OF DAYS WITH PRECIPITATION. 8 9 9 7 6 2 0 0 0 2 13 4 60 NO. OF DAYS PRECIPITATION EQUAL 4 7 8 7 4 1 0 0 0 1 10 3 45 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 4 3 0 0 0 0 0 0 0 3 1 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 67 62 51 44 42 35 39 36 35 41 71 72 50 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 54 37 30 28 26 27 25 24 29 60 54 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 58 36 28 28 23 24 24 22 31 65 59 38 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 12 3 1 0 0 0 0 0 0 0 0 0 16 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 2 17 23 23 16 1 0 0 82 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 0 0 0 0 0 0 0 0 0 0 0 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 21 31 29 20 1 0 0 106 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 25 11 4 0 0 0 0 0 0 0 5 5 50 DATE OF START AND END FREEZING START = 14 NOV. END = 23 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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. 5.7 5.1 11.5 17.6 21.2 25.8 29.3 29.8 22.7 17.4 11.8 3.4 16.8 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.2 1.2 7.3 12.9 16.4 19.6 22.8 23.7 17.4 12.7 7.9 -0.3 12.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.1 9.0 15.7 22.3 26.0 32.1 35.9 36.0 28.0 22.0 15.8 7.1 21.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 6.9 7.8 8.4 9.4 9.6 12.5 13.1 12.3 10.6 9.3 7.9 7.4 9.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.63 2.98 4.18 5.47 6.08 6.79 8.64 7.79 5.37 6.61 5.61 3.09 5.52 MEAN OF MIXING RATIO AT 09 GMT. 4.03 3.29 3.88 5.08 5.03 6.10 7.79 7.88 5.37 6.44 6.11 3.57 5.38 MEAN OF MIXING RATIO AT 15 GMT. 4.03 3.13 3.45 4.62 4.92 5.82 7.37 7.37 5.32 6.72 6.33 3.66 5.23 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -1.0 -5.0 2.0 2.0 8.0 10.6 14.8 19.4 12.8 8.4 0.0 -8.8 -8.8 DAY 26 4 2 5 7 5 1 25 16 26 11 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.4 15.4 22.8 30.0 31.8 35.4 40.0 39.4 32.0 25.4 21.0 13.6 40.0 DAY 3 27 31 22 30 16 30 1 1 1 3 19 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.4 33.7 7.4 24.8 11.2 0.4 0.0 0.0 0.0 7.0 22.5 1.7 33.7 DAY 16 1 12 30 6 5 ** ** ** 8 26 1 MONTHLY TOTAL PRECIPITATION IN MM. 52.8 54.1 20.7 29.8 22.6 0.7 0.0 0.0 0.0 18.3 106.5 4.2 309.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 41.2 17.1 0.0 41.7 NO. OF DAYS WITH PRECIPITATION. 9 4 8 7 5 2 0 0 2 8 12 4 61 NO. OF DAYS PRECIPITATION EQUAL 8 4 6 3 4 0 0 0 0 5 10 2 42 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 0 1 1 0 0 0 0 0 5 0 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 65 59 54 46 40 38 38 34 35 59 65 65 50 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 47 37 32 25 22 23 22 23 40 53 54 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 58 46 32 30 24 20 19 19 22 45 60 61 36 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 3 0 0 0 0 0 0 0 0 0 9 12 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 2 14 20 27 3 0 0 0 67 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 2 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 2 8 25 31 31 7 0 0 0 104 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. 9 12 0 0 0 0 0 0 0 0 1 16 38 DATE OF START AND END FREEZING START = 11 NOV. END = 25 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. 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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 CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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. 2.0 6.0 6.7 14.3 21.8 26.6 28.8 29.2 27.0 17.8 10.7 8.2 16.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.2 2.2 3.3 9.8 16.5 20.8 23.4 23.8 21.8 13.0 6.4 4.0 12.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.1 9.9 10.2 18.8 27.0 32.4 34.1 34.6 32.3 22.7 15.0 12.3 21.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 6.3 7.7 6.9 9.0 10.5 11.6 10.7 10.8 10.5 9.7 8.6 8.3 9.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.02 3.98 4.25 5.61 7.79 7.86 8.30 6.91 5.31 4.96 3.36 3.30 5.39 MEAN OF MIXING RATIO AT 09 GMT. 3.45 4.34 4.56 5.09 7.11 6.82 7.48 6.21 5.08 4.98 3.70 3.36 5.18 MEAN OF MIXING RATIO AT 15 GMT. 3.55 4.43 4.53 5.25 6.83 7.20 7.02 6.17 4.71 5.05 3.91 3.73 5.20 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -2.6 -3.0 1.4 10.4 13.6 18.4 18.8 14.4 7.0 0.8 -0.4 -8.0 DAY 18 3 1 4 2 12 15 29 24 17 12 3 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.0 17.0 22.4 24.8 33.4 36.4 36.8 37.6 36.0 26.4 20.4 18.6 37.6 DAY 2 8 31 22 31 4 3 23 10 24 3 27 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 12.0 43.0 27.0 6.0 1.0 0.0 0.0 0.0 8.8 0.2 9.0 43.0 DAY 5 28 2 3 11 27 ** ** ** 16 9 22 MONTHLY TOTAL PRECIPITATION IN MM. 50.2 62.3 148.0 55.8 17.8 1.0 0.0 0.0 0.0 14.8 0.2 15.4 365.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 71.3 20.4 0.0 8.3 NO. OF DAYS WITH PRECIPITATION. 11 13 13 10 9 1 0 0 0 2 1 4 64 NO. OF DAYS PRECIPITATION EQUAL 11 11 13 8 5 1 0 0 0 2 0 3 54 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 3 4 1 0 0 0 0 0 0 0 0 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 73 71 57 51 39 36 30 28 44 47 54 50 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 60 61 40 34 23 23 19 18 29 34 36 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 62 60 41 33 23 20 18 16 32 40 46 38 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 0 0 0 0 0 0 0 0 0 0 0 7 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 3 14 26 26 22 0 0 0 91 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 0 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 10 26 31 30 23 0 0 0 120 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 20 8 4 0 0 0 0 0 0 0 0 1 33 DATE OF START AND END FREEZING START = 3 DEC. END = 19 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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. 6.0 5.1 7.6 15.6 21.5 27.3 30.7 31.2 24.5 20.6 10.5 6.0 17.2 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.0 0.4 3.2 10.9 16.3 21.8 24.4 25.7 19.1 15.8 7.0 2.3 12.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.0 9.7 11.9 20.3 26.7 32.8 37.0 36.7 30.0 25.4 14.0 9.6 22.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.0 9.3 8.7 9.4 10.4 11.0 12.6 11.0 10.9 9.6 7.0 7.3 9.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.87 2.18 3.44 4.20 5.18 6.86 8.66 6.65 5.64 4.94 4.82 4.00 4.95 MEAN OF MIXING RATIO AT 09 GMT. 2.73 2.18 3.34 3.97 5.04 5.96 7.54 5.96 4.79 4.49 4.88 4.42 4.61 MEAN OF MIXING RATIO AT 15 GMT. 2.96 2.15 3.32 4.06 4.77 5.36 6.42 5.63 4.71 4.68 5.04 4.39 4.46 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.0 -7.0 -4.4 0.6 9.0 16.6 19.4 20.0 9.6 10.0 3.0 -3.4 -9.0 DAY 29 7 8 12 6 2 6 21 15 26 29 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.4 16.0 19.0 29.6 33.6 36.2 40.0 40.2 36.2 29.4 17.6 13.6 40.2 DAY 7 18 24 26 28 27 29 14 1 4 5 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 3.0 12.0 13.0 0.3 3.0 1.0 0.0 0.0 2.0 14.0 17.0 17.0 DAY 16 21 30 5 18 16 6 ** ** 21 2 10 MONTHLY TOTAL PRECIPITATION IN MM. 11.0 5.0 49.9 16.1 0.3 3.6 1.0 0.0 0.0 2.6 33.7 48.1 171.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 38.5 11.7 0.6 49.3 NO. OF DAYS WITH PRECIPITATION. 1 2 10 6 1 3 1 0 0 2 7 8 41 NO. OF DAYS PRECIPITATION EQUAL 1 2 6 2 0 1 1 0 0 1 7 7 28 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 1 0 0 0 0 0 0 1 3 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 54 43 59 41 36 33 37 26 36 37 65 73 45 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 35 28 40 28 24 20 21 16 19 22 48 58 30 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 40 28 39 28 22 16 15 14 18 25 53 62 30 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 5 2 0 0 0 0 0 0 0 0 0 9 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 3 18 28 30 8 1 0 0 88 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 6 26 31 31 17 0 0 0 111 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 1 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. 7 15 7 0 0 0 0 0 0 0 0 6 35 DATE OF START AND END FREEZING START = 22 DEC. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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. 1.9 4.4 10.2 17.7 21.4 28.2 29.5 29.6 25.5 19.4 15.1 10.0 17.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.6 0.3 5.5 12.5 16.3 22.7 24.0 24.2 20.3 14.4 10.3 6.0 12.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.3 8.5 14.9 22.9 26.4 33.7 34.9 35.1 30.7 24.5 19.9 14.1 22.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 6.9 8.2 9.4 10.4 10.1 11.0 10.9 10.9 10.4 10.1 9.6 8.1 9.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.00 3.33 4.00 5.50 7.10 8.19 9.17 8.79 6.82 5.26 4.45 4.25 5.82 MEAN OF MIXING RATIO AT 09 GMT. 3.31 3.43 4.00 5.19 6.88 7.65 8.45 7.84 6.25 5.20 4.48 4.21 5.58 MEAN OF MIXING RATIO AT 15 GMT. 3.16 3.45 3.89 5.05 6.58 7.18 7.92 7.42 6.20 5.03 4.84 4.68 5.45 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -6.0 -3.0 4.4 8.4 18.2 19.6 18.8 15.6 8.8 6.6 0.4 -11.0 DAY 14 28 2 6 2 28 21 7 11 12 27 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.4 16.6 21.0 31.0 32.0 38.0 40.0 39.5 35.5 30.8 23.4 19.4 40.0 DAY 26 6 24 17 11 28 12 19 2 1 9 14 24 HOUR MAXIMUM PRECIPITATION IN MM. 15.0 18.0 19.0 11.0 6.0 0.0 0.0 2.0 3.0 3.0 2.0 26.0 26.0 DAY 13 12 30 6 20 ** ** 4 26 11 11 4 MONTHLY TOTAL PRECIPITATION IN MM. 42.8 33.5 61.9 38.0 26.8 0.0 0.0 2.6 5.0 4.0 3.3 41.0 258.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.4 25.0 2.9 18.7 NO. OF DAYS WITH PRECIPITATION. 9 7 11 7 7 0 0 3 2 2 3 3 54 NO. OF DAYS PRECIPITATION EQUAL 9 7 9 7 6 0 0 1 2 2 2 3 48 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 2 2 0 0 0 0 0 0 0 2 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 68 71 59 50 50 35 39 38 39 44 47 61 50 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 54 43 32 34 23 24 23 23 28 31 41 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 58 54 41 31 32 21 22 20 23 30 38 53 35 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 4 0 0 0 0 0 0 0 0 0 0 11 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 2 25 29 26 14 4 0 0 100 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 8 30 29 31 20 2 0 0 123 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. 21 13 3 0 0 0 0 0 0 0 0 0 37 DATE OF START AND END FREEZING START = 3 JAN. END = 3 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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. 4.6 9.0 10.3 16.8 23.3 28.6 27.9 30.9 25.2 20.7 9.9 7.0 17.8 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.0 4.4 5.8 11.6 17.5 22.7 21.6 26.0 19.6 16.0 5.5 3.0 12.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.3 13.5 14.9 21.9 29.0 34.5 34.1 35.8 30.8 25.4 14.2 11.0 22.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.3 9.1 9.1 10.3 11.5 11.8 12.5 9.8 11.2 9.4 8.7 8.0 9.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.60 3.27 3.70 5.33 5.20 6.49 8.79 6.84 6.23 5.02 4.62 3.80 5.24 MEAN OF MIXING RATIO AT 09 GMT. 3.67 3.34 3.50 4.74 4.49 5.46 7.87 6.86 6.57 5.12 4.74 4.29 5.06 MEAN OF MIXING RATIO AT 15 GMT. 3.86 3.42 3.51 4.31 4.46 5.06 7.17 6.47 5.44 4.87 4.34 4.30 4.77 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.0 -2.0 -1.6 3.0 9.0 17.0 15.0 19.6 11.0 7.6 -2.0 -1.4 -3.0 DAY 2 22 19 10 5 16 13 31 28 26 29 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.6 18.4 20.4 28.6 36.2 37.4 39.0 38.4 34.6 30.4 20.8 17.4 39.0 DAY 31 28 26 30 31 28 4 1 13 1 19 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.0 7.3 7.0 3.0 4.0 0.0 4.0 0.0 1.0 10.0 16.0 7.0 16.0 DAY 10 8 17 23 10 ** 14 ** 27 27 11 10 MONTHLY TOTAL PRECIPITATION IN MM. 36.0 10.8 28.5 8.7 4.5 0.0 12.0 0.0 1.0 18.4 50.4 21.2 191.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 39.3 6.9 6.8 47.0 NO. OF DAYS WITH PRECIPITATION. 8 4 8 6 3 0 3 0 1 5 6 8 52 NO. OF DAYS PRECIPITATION EQUAL 5 3 6 4 1 0 3 0 1 3 6 5 37 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 0 0 0 0 0 0 1 3 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 51 53 48 33 30 44 27 37 37 65 65 47 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 53 35 36 30 18 17 25 19 25 27 47 52 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 61 39 36 27 18 15 21 17 20 28 51 59 33 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 7 20 19 30 14 2 0 0 92 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 10 30 27 31 22 4 0 0 124 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 9 2 2 0 0 0 0 0 0 0 2 5 20 DATE OF START AND END FREEZING START = 29 NOV. END = 19 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 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. 4.4 5.8 10.1 19.9 24.7 27.2 29.9 29.9 26.3 17.0 9.4 5.8 17.5 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.7 1.4 5.6 14.9 19.1 21.1 24.3 24.6 21.0 12.6 5.6 2.6 12.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.0 10.1 14.6 24.9 30.3 33.3 35.5 35.1 31.6 21.5 13.3 9.1 22.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.3 8.7 9.0 10.0 11.2 12.2 11.2 10.5 10.6 8.9 7.7 6.5 9.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.75 2.76 3.10 4.37 4.23 6.27 6.76 6.99 6.58 5.42 4.56 4.22 4.83 MEAN OF MIXING RATIO AT 09 GMT. 3.15 2.96 2.89 4.35 3.94 4.55 6.17 6.28 6.43 5.58 4.71 4.55 4.63 MEAN OF MIXING RATIO AT 15 GMT. 3.18 2.76 2.66 3.51 3.69 4.24 5.58 5.91 5.95 5.23 4.48 4.47 4.31 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.2 -4.0 -2.0 7.0 13.0 9.0 21.0 20.0 16.6 9.0 1.0 0.0 -5.2 DAY 18 9 16 2 11 13 4 1 20 5 11 16 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.4 16.6 19.8 29.8 35.2 38.2 39.0 39.0 36.6 26.2 21.8 12.4 39.0 DAY 1 24 21 20 26 30 11 3 8 11 3 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 25.0 4.9 0.3 0.0 0.0 0.0 0.0 3.0 19.0 6.0 32.0 32.0 DAY 28 14 23 9 ** ** ** ** 6 17 6 11 MONTHLY TOTAL PRECIPITATION IN MM. 35.0 38.2 12.4 0.9 0.0 0.0 0.0 0.0 3.2 40.2 22.6 93.3 245.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 34.8 0.4 1.3 63.5 NO. OF DAYS WITH PRECIPITATION. 8 5 6 3 0 0 0 0 2 7 8 12 51 NO. OF DAYS PRECIPITATION EQUAL 7 4 4 0 0 0 0 0 1 6 5 9 36 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 0 0 0 0 0 0 0 2 0 3 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 56 53 43 32 23 32 28 30 35 49 65 75 43 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 48 40 28 22 15 15 18 18 23 37 48 62 31 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 53 40 27 19 14 14 15 17 22 36 52 66 31 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 1 0 0 0 0 0 0 0 0 0 0 3 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 8 16 31 28 16 0 0 0 99 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 20 24 31 31 24 0 0 0 130 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. 18 11 3 0 0 0 0 0 0 0 0 2 34 DATE OF START AND END FREEZING START = 16 DEC. END = 16 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. MEAN AND EXTREMES FOR THE PERIOD 1991 TO 2000 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. 3.2 5.2 8.6 16.5 21.0 26.7 29.2 29.3 24.9 18.3 10.8 6.1 16.6 SD OF MEAN DAILY TEMPERATURE IN C. 2.08 1.71 2.03 1.81 2.38 1.28 0.90 1.45 1.52 1.55 2.05 2.22 1.75 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.3 1.0 4.4 11.6 15.8 20.8 23.2 23.8 19.4 13.4 6.8 2.5 11.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.7 9.3 12.8 21.4 26.3 32.6 35.2 34.8 30.3 23.1 14.9 9.7 21.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.0 8.2 8.4 9.8 10.5 11.8 12.0 10.9 11.0 9.7 8.1 7.2 9.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.15 3.10 3.83 5.20 6.10 7.89 9.67 8.63 6.40 5.36 4.59 3.76 5.63 MEAN OF MIXING RATIO AT 09 GMT. 3.43 3.41 3.86 4.80 5.79 7.35 9.63 8.99 6.57 5.25 4.80 4.00 5.65 MEAN OF MIXING RATIO AT 15 GMT. 3.41 3.34 3.71 4.56 5.59 7.19 9.19 8.83 6.20 5.31 4.83 4.12 5.52 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -8.6 -7.0 0.6 2.0 9.0 14.8 13.0 9.0 6.0 -2.4 -8.8 -11.0 YEAR - DAY 98-14 91-13 91-11 97-12 92- 5 0-13 94- 1 92-30 91-27 91-29 93-30 94- 7 98-14 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.4 18.4 22.8 31.0 36.2 38.2 40.0 40.2 36.6 30.8 23.4 19.4 40.2 YEAR - DAY 0- 1 99-28 94-31 98-17 99-31 0-30 94-30 97-14 0- 8 98- 1 98- 9 98-14 97-14 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.2 33.7 58.0 39.0 18.7 9.0 4.0 5.0 3.0 19.0 22.5 32.0 58.0 YEAR - DAY 93- 8 94- 1 91-25 91- 5 92- 2 92- 4 99-14 92-29 98-26 0-17 94-26 0-11 91-25 MONTHLY TOTAL PRECIPITATION IN MM. 35.4 40.4 67.2 26.9 15.0 2.7 1.5 0.8 1.0 11.6 35.5 34.0 272.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 52.6 16.4 1.2 29.8 NO. OF DAYS WITH PRECIPITATION. 7 7 10 6 5 2 1 0 1 3 6 6 54 NO. OF DAYS PRECIPITATION EQUAL 6 6 8 4 4 1 0 0 0 2 5 5 41 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 2 1 0 0 0 0 0 0 1 1 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 66 60 59 48 43 40 42 37 37 45 60 67 50 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 48 44 32 29 25 28 27 25 31 45 52 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 60 50 43 31 28 23 25 25 23 33 50 60 38 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 3 1 0 0 0 0 0 0 0 0 1 10 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 3 16 24 25 12 1 0 0 81 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 8 25 30 30 18 1 0 0 113 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 17 12 5 0 0 0 0 0 0 0 1 6 41 DATE OF START AND END FREEZING START = 11 NOV. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION CHITGAR LATITUDE 35 42 N DATA PROCESSING CENTER LONGITUDE 51 8 E ELEVATION 1215 MET. MEAN AND EXTREMES FOR THE PERIOD 1991 TO 2000 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. 3.3 5.3 8.9 17.2 22.1 28.2 30.6 30.5 26.0 18.9 11.0 6.1 17.4 AVERAGE DEW POINT TEMPERATURE. IN C. -4.4 -4.7 -2.9 0.6 3.4 6.7 10.0 8.7 4.5 2.2 0.5 -1.9 1.9 AVERAGE OF MIXING RATIO IN G/KG 3.33 3.29 3.80 4.85 5.83 7.47 9.52 8.81 6.39 5.30 4.73 3.95 5.61 AVERAGE OF VAPOUR PRESSURE HPA 4.65 4.60 5.32 6.80 8.18 10.47 13.28 12.32 8.96 7.43 6.62 5.53 7.85 AVERAGE OF SATURATION DEFICIT IN HPA 3.36 4.73 6.66 13.66 19.62 29.00 31.86 32.49 25.76 15.04 7.01 4.24 16.12 AVERAGE RELATIVE HUMIDITY IN PERCENT 61 53 49 37 33 29 32 30 28 36 52 60 42 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 71 65 62 50 44 40 43 39 38 46 62 71 53 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 51 43 39 27 25 22 24 23 22 28 43 49 33 NO. OF DAYS PRECIPITATION EQUAL 3 3 4 2 1 0 0 0 0 1 3 2 19 OR MORE THAN 5 MM.