IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1998 -0.4 1.3 5.7 11.6 16.3 20.9 23.1 22.1 19.1 13.4 8.4 7.2 23.5 1999 0.4 2.5 3.0 9.0 15.7 21.7 22.5 20.9 19.2 14.4 7.8 3.2 22.1 2000 -0.2 0.8 4.0 13.3 18.4 20.2 21.6 22.1 20.0 13.3 5.7 2.6 22.3 2001 1.3 1.3 7.4 13.3 18.0 ****** 24.1 21.3 19.9 14.8 7.6 4.1 ****** 2002 -0.3 1.9 7.8 10.7 16.6 20.8 23.0 23.5 20.6 15.5 6.3 2.0 23.8 2003 0.2 3.7 5.8 9.2 15.6 21.7 26.6 22.5 20.4 14.4 6.5 2.3 26.4 MEAN 0.2 1.9 5.6 11.2 16.8 21.1 23.5 22.1 19.9 14.3 7.0 3.5 23.3 SD 0.63 1.05 1.87 1.91 1.20 0.63 1.74 0.89 0.61 0.85 1.02 1.93 1.19 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 -5.0 -3.3 0.9 5.6 10.5 15.2 17.4 15.9 12.4 6.4 2.1 0.9 6.6 1999 -4.6 -2.0 -0.8 3.2 9.2 15.6 14.4 13.1 11.5 6.8 0.4 -5.2 5.1 2000 -6.2 -4.4 -2.4 6.9 11.9 12.9 15.0 15.5 13.6 7.9 1.1 -2.2 5.8 2001 -4.4 -4.7 1.6 7.2 11.2 ****** 18.3 15.3 13.6 8.4 1.5 -0.4 ****** 2002 -5.6 -3.8 2.4 5.5 9.8 14.4 16.7 16.7 13.5 9.3 1.3 -3.1 6.5 2003 -5.3 -1.1 1.1 3.5 9.5 16.3 20.9 15.8 13.5 8.3 0.2 -3.9 6.6 MEAN -5.2 -3.2 0.5 5.3 10.3 14.9 17.1 15.4 13.0 7.9 1.1 -2.3 6.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 4.3 5.9 10.6 17.7 22.1 26.5 28.9 28.3 25.7 20.3 14.7 13.5 18.2 1999 5.4 7.1 6.9 14.8 22.3 27.7 30.7 28.7 26.9 21.9 15.1 11.5 18.2 2000 5.9 6.0 10.3 19.8 25.0 27.5 28.3 28.6 26.4 18.7 10.3 7.4 17.9 2001 7.0 7.3 13.0 19.3 24.9 ****** 29.9 27.4 26.2 21.2 13.7 8.5 ****** 2002 4.9 7.6 13.3 15.9 23.4 27.3 29.2 30.2 27.7 21.7 11.3 7.0 18.3 2003 5.7 8.5 10.4 14.9 21.7 27.1 32.4 29.2 27.3 20.5 12.9 8.5 18.2 MEAN 5.5 7.1 10.8 17.1 23.2 27.2 29.9 28.7 26.7 20.7 13.0 9.4 18.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 9.3 9.1 9.7 12.1 11.6 11.3 11.5 12.4 13.3 13.9 12.6 12.6 11.6 1999 10.0 9.1 7.7 11.6 13.1 12.1 16.3 15.6 15.4 15.1 14.7 16.7 13.1 2000 12.1 10.4 12.7 12.9 13.1 14.6 13.3 13.1 12.8 10.8 9.2 9.6 12.0 2001 11.4 12.0 11.4 12.1 13.7 ****** 11.6 12.1 12.6 12.8 12.2 8.9 ****** 2002 10.5 11.4 10.9 10.4 13.6 12.9 12.5 13.5 14.2 12.4 10.0 10.1 11.9 2003 11.0 9.6 9.3 11.4 12.2 10.8 11.5 13.4 13.8 12.2 12.7 12.4 11.7 MEAN 10.7 10.3 10.3 11.7 12.9 12.3 12.8 13.3 13.7 12.9 11.9 11.7 12.0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 3.15 3.15 4.37 4.19 4.99 5.38 6.59 4.93 5.94 4.06 1.64 2.88 4.27 1999 2.23 2.21 3.05 3.76 5.43 6.60 6.69 5.87 5.36 4.55 4.07 1.99 4.32 2000 1.81 1.82 2.23 4.43 4.94 4.82 4.92 5.32 5.14 4.85 3.86 3.12 3.94 2001 2.20 2.12 4.00 4.50 4.94 ****** 5.34 5.57 5.27 5.10 3.60 3.58 ****** 2002 1.85 2.25 4.23 4.80 4.80 5.58 6.28 5.78 5.41 5.33 4.00 2.77 4.42 2003 2.03 3.20 3.76 4.27 4.84 5.28 6.21 5.01 5.21 4.75 3.75 2.36 4.22 MEAN 2.22 2.46 3.61 4.33 5.00 5.54 6.01 5.42 5.39 4.78 3.49 2.79 4.25 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 4.21 4.44 4.90 3.73 4.84 5.86 7.15 6.94 6.82 5.39 4.41 3.99 5.22 1999 2.90 3.21 3.42 4.41 6.75 7.75 7.49 7.80 6.91 4.77 5.06 4.78 5.44 2000 3.63 4.15 4.61 4.57 5.52 6.10 6.45 6.42 5.49 5.14 4.92 4.79 5.15 2001 4.22 3.88 5.28 5.16 5.67 ****** 7.19 6.18 5.76 5.30 4.82 5.02 ****** 2002 3.48 4.02 4.75 4.57 5.58 6.61 7.16 7.75 6.29 5.22 5.21 4.49 5.43 2003 3.87 4.56 4.59 5.04 5.33 6.80 7.51 6.20 6.59 5.00 4.20 4.83 5.38 MEAN 3.73 4.05 4.60 4.59 5.62 6.63 7.16 6.89 6.31 5.14 4.77 4.66 5.34 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 3.40 3.38 4.05 3.32 5.50 4.60 6.12 5.84 5.37 4.50 3.73 3.37 4.43 1999 2.22 3.00 3.14 4.57 5.52 6.38 7.40 5.81 5.71 4.86 4.69 2.99 4.69 2000 2.22 2.59 3.30 4.38 5.45 5.31 5.46 5.40 5.33 4.89 4.69 3.28 4.36 2001 2.59 2.23 4.85 5.35 5.03 ****** 7.33 5.20 5.36 4.86 4.66 4.76 ****** 2002 2.97 3.04 4.63 4.73 5.29 5.68 6.69 6.35 5.55 4.80 5.11 3.79 4.89 2003 2.55 4.07 4.67 4.83 4.74 5.68 7.06 5.24 5.31 5.01 4.67 4.07 4.82 MEAN 2.66 3.06 4.11 4.54 5.26 5.54 6.68 5.64 5.44 4.83 4.60 3.72 4.67 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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 1998 -13.0 13 -12.0 20 -6.0 2 0.0 7 1.0 4 9.3 3 12.0 28 12.0 12 8.0 1 2.0 14 -1.0 26 -3.0 3 -13.0 1999 -11.0 26 -6.4 1 -7.0 5 1.0 3 5.0 1 9.0 23 9.0 21 9.0 10 5.4 27 5.0 24 -2.2 18 -8.0 7 -11.0 2000 -12.0 15 -9.0 12 -7.2 5 -2.2 1 8.6 1 6.4 18 10.0 16 12.2 14 10.0 23 4.0 6 -2.1 24 -8.0 13 -12.0 2001 -14.1 30 -13.3 1 -2.0 11 3.0 2 6.2 6 ***** ** 14.2 1 10.0 16 10.0 25 5.0 11 -5.0 25 -5.0 19 ***** 2002 -11.4 19 -13.2 7 -2.2 7 0.0 4 2.4 4 11.2 9 11.4 26 15.0 2 8.0 23 5.8 29 -3.0 20 -9.2 23 -13.2 2003 -8.2 27 -8.8 20 -9.0 5 -1.0 8 4.5 7 9.2 26 16.0 10 13.0 2 10.0 27 4.5 31 -5.5 25 -9.5 14 -9.5 LOW. -14.1 30 -13.3 1 -9.0 5 -2.2 1 1.0 4 6.4 18 9.0 21 9.0 10 5.4 27 2.0 14 -5.5 25 -9.5 14 -14.1 YEAR 2001 2001 2003 2000 1998 2000 1999 1999 1999 1998 2003 2003 2001 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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 1998 8.5 17 12.0 22 20.0 29 23.0 15 26.5 28 30.0 9 34.0 9 33.0 23 28.5 8 25.0 5 16.1 19 18.0 11 34.0 1999 11.0 1 12.0 10 11.2 30 19.0 29 25.4 22 30.0 22 39.0 6 30.0 1 30.0 20 25.0 14 18.0 1 14.0 22 39.0 2000 12.0 3 10.0 21 15.0 31 23.0 26 27.0 29 31.0 26 31.2 5 30.2 4 30.4 9 24.0 2 19.0 1 10.4 4 31.2 2001 11.0 4 11.0 25 17.2 31 23.2 30 28.2 16 ***** ** 33.4 10 30.2 30 30.0 5 26.0 4 20.0 2 12.4 30 ***** 2002 11.0 1 13.0 25 16.0 25 24.0 30 27.4 19 29.0 14 32.2 20 36.0 23 30.2 2 24.8 10 15.0 1 10.4 10 36.0 2003 9.0 7 13.6 26 16.0 28 19.5 26 25.0 29 32.0 24 34.2 25 32.6 17 31.0 2 28.0 1 18.2 2 11.2 23 34.2 HIG. 12.0 3 13.6 26 20.0 29 24.0 30 28.2 16 32.0 24 39.0 6 36.0 23 31.0 2 28.0 1 20.0 2 18.0 11 39.0 YEAR 2000 2003 1998 2002 2001 2003 1999 2002 2003 2003 2001 1998 1999 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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 1998 14.5 5 32.0 10 12.0 17 21.0 23 0.0 ** 0.0 ** 7.0 16 3.0 1 0.0 ** 0.0 ** 0.0 ** 6.5 31 32.0 1999 18.0 16 29.0 6 26.0 1 7.5 7 0.0 ** 0.0 ** 1.0 7 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 29.0 2000 22.0 29 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.0 5 11.0 6 16.0 11 22.0 2001 3.0 11 4.0 15 8.5 11 0.0 ** 0.5 3 ***** ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 23.5 12 ***** 2002 40.0 11 7.0 12 12.5 20 33.0 12 0.0 ** 0.0 ** 0.0 ** 0.0 ** 12.0 26 0.0 ** 28.0 7 10.0 10 40.0 2003 16.0 19 13.5 16 15.0 29 4.5 19 0.0 ** 0.0 ** 1.0 30 5.5 1 0.0 ** 0.0 ** 0.0 ** 11.5 30 16.0 HIG. 40.0 11 32.0 10 26.0 1 33.0 12 0.5 3 0.0 ** 7.0 16 5.5 1 12.0 26 6.0 5 28.0 7 23.5 12 40.0 YEAR 2002 1998 1999 2002 2001 **** 1998 2003 2002 2000 2002 2001 2002 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1998 28.7 83.0 32.0 31.5 0.0 0.0 10.0 3.0 0.0 0.0 0.0 6.5 194.7 73.8 16.2 6.7 3.3 1999 40.8 92.5 65.0 13.5 0.0 0.0 1.0 0.0 0.0 0.0 0.0 0.0 212.8 93.2 6.3 0.5 0.0 2000 39.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11.0 35.0 57.0 142.0 27.5 0.0 0.0 72.5 2001 7.0 7.0 14.5 0.0 0.5 ****** 0.0 0.0 0.0 0.0 0.0 137.0 ****** 17.2 0.3 0.0 82.5 2002 105.0 11.5 15.0 48.0 0.0 0.0 0.0 0.0 24.0 0.0 41.5 15.0 260.0 50.6 18.5 9.2 21.7 2003 39.0 17.0 57.0 7.0 0.0 0.0 1.0 5.5 0.0 0.0 0.0 34.4 160.9 70.2 4.4 4.0 21.4 MEAN 43.3 35.2 30.6 16.7 0.1 0.0 2.0 1.4 4.0 1.8 12.8 41.7 189.6 57.6 8.8 3.9 29.7 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 6 6 5 3 0 0 2 1 0 0 0 1 24 1999 5 5 5 2 0 0 1 0 0 0 0 0 18 2000 4 0 0 0 0 0 0 0 0 3 6 9 22 2001 3 2 3 0 1 *** 0 0 0 0 0 12 *** 2002 6 4 2 4 0 0 0 0 2 0 3 3 24 2003 7 2 6 2 0 0 1 1 0 0 0 7 26 MEAN 5 3 4 2 0 0 1 0 0 1 2 5 23 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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 1998 5 6 5 3 0 0 2 1 0 0 0 1 23 1999 5 5 5 2 0 0 1 0 0 0 0 0 18 2000 3 0 0 0 0 0 0 0 0 3 6 8 20 2001 3 2 3 0 0 *** 0 0 0 0 0 12 *** 2002 6 3 2 3 0 0 0 0 2 0 3 3 22 2003 7 2 6 2 0 0 1 1 0 0 0 6 25 MEAN 5 3 4 2 0 0 1 0 0 1 2 5 23 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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 1998 1 4 2 1 0 0 0 0 0 0 0 0 8 1999 1 4 2 0 0 0 0 0 0 0 0 0 7 2000 2 0 0 0 0 0 0 0 0 0 1 3 6 2001 0 0 0 0 0 *** 0 0 0 0 0 6 *** 2002 3 0 1 2 0 0 0 0 2 0 2 1 11 2003 2 1 3 0 0 0 0 0 0 0 0 1 7 MEAN 2 2 1 1 0 0 0 0 0 0 1 2 9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 70 65 65 47 42 34 34 28 42 40 23 43 44 1999 50 43 54 49 46 35 38 33 40 41 52 36 43 2000 41 40 41 44 36 32 30 33 36 44 59 57 41 2001 48 49 61 46 41 *** 28 34 36 44 48 60 *** 2002 41 47 57 53 41 32 32 31 33 47 56 57 44 2003 49 58 58 54 42 29 28 29 35 43 55 46 44 MEAN 50 50 56 49 41 32 32 31 37 43 49 50 43 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 67 63 52 25 24 23 24 24 27 28 34 33 35 1999 42 41 45 34 32 27 24 29 26 24 39 46 34 2000 51 59 51 28 24 23 24 23 21 32 52 61 37 2001 55 52 47 31 25 *** 22 22 22 28 42 60 *** 2002 52 52 41 35 26 25 23 25 23 27 51 61 37 2003 57 53 48 39 26 25 20 22 25 29 39 59 37 MEAN 54 53 47 32 26 25 23 24 24 28 43 53 36 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 66 59 58 30 36 20 24 23 24 34 40 37 38 1999 47 49 49 50 37 29 25 23 25 30 44 41 37 2000 45 50 46 33 33 26 23 22 24 35 62 50 37 2001 46 42 54 38 27 *** 26 21 24 30 52 70 *** 2002 57 50 53 41 27 23 24 23 23 30 60 63 40 2003 50 61 61 45 28 25 24 22 25 34 53 60 41 MEAN 52 52 54 40 31 25 24 22 24 32 52 54 39 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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 1998 21 13 3 0 0 0 0 0 0 0 0 0 37 1999 17 4 1 0 0 0 0 0 0 0 0 26 48 2000 24 21 8 0 0 0 0 0 0 0 0 10 63 2001 21 17 0 0 0 *** 0 0 0 0 2 4 *** 2002 19 11 0 0 0 0 0 0 0 0 0 9 39 2003 26 4 4 0 0 0 0 0 0 0 6 21 61 MEAN 21 12 3 0 0 0 0 0 0 0 1 12 49 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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 1998 0 0 0 0 0 0 4 0 0 0 0 0 4 1999 0 0 0 0 0 0 5 0 0 0 0 0 5 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 0 0 0 *** 4 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 3 22 0 0 0 0 0 25 MEAN 0 0 0 0 0 1 6 0 0 0 0 0 7 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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 1998 2 0 0 0 0 0 0 0 0 0 0 0 2 1999 2 1 0 0 0 0 0 0 0 0 0 0 3 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 1 0 0 0 *** 0 0 0 0 0 0 *** 2002 1 0 0 0 0 0 0 0 0 0 0 0 1 2003 0 0 0 0 0 0 0 0 0 0 0 1 1 MEAN 1 0 0 0 0 0 0 0 0 0 0 0 1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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 1998 0 0 0 0 0 1 17 12 0 0 0 0 30 1999 0 0 0 0 0 3 20 6 1 0 0 0 30 2000 0 0 0 0 0 6 11 4 2 0 0 0 23 2001 0 0 0 0 0 *** 18 4 1 0 0 0 *** 2002 0 0 0 0 0 0 12 19 3 0 0 0 34 2003 0 0 0 0 0 9 30 15 5 0 0 0 59 MEAN 0 0 0 0 0 4 18 10 2 0 0 0 34 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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 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 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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 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 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 24 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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 -------------- 1998 31 21 15 2 0 0 0 0 0 0 6 12 87 11 8 4 11 1999 31 23 18 0 0 0 0 0 0 0 18 31 121 11 5 3 23 2000 31 28 28 1 0 0 0 0 0 0 13 26 127 11 10 4 1 2001 31 28 8 0 0 *** 0 0 0 0 11 20 *** 11 19 3 27 2002 26 25 3 1 0 0 0 0 0 0 12 29 96 11 17 4 4 2003 31 19 8 2 0 0 0 0 0 0 15 26 101 11 6 4 8 MEAN 30 24 13 1 0 0 0 0 0 0 13 24 105 11 5 4 11 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 0.2 1.7 5.7 11.9 16.7 21.9 24.3 23.4 21.0 14.8 9.3 8.3 13.3 1999 0.5 3.0 3.5 9.5 16.5 23.0 24.8 23.3 20.8 16.4 10.3 5.7 13.1 2000 0.7 0.9 4.8 14.0 18.7 20.9 22.3 22.6 21.1 14.6 6.2 3.6 12.5 2001 1.9 0.9 7.8 14.1 18.6 ****** 24.9 22.6 21.1 16.4 8.6 4.5 ****** 2002 0.4 2.0 8.5 12.0 18.2 22.8 24.9 24.7 22.6 16.5 7.4 2.3 13.5 2003 0.4 4.0 5.9 10.4 16.9 22.7 27.1 23.1 21.1 15.3 7.7 3.1 13.1 MEAN 0.7 2.1 6.0 12.0 17.6 22.3 24.7 23.3 21.3 15.7 8.3 4.6 13.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 -5.4 -5.3 -2.5 -5.0 -0.3 0.3 3.5 1.4 2.1 -1.6 -7.4 -5.9 -2.2 1999 -10.5 -8.8 -7.0 -2.7 1.7 3.7 4.2 2.8 2.0 -1.1 -1.6 -7.2 -2.0 2000 -10.3 -8.9 -6.5 -1.9 0.5 0.7 1.1 1.5 0.6 -0.4 -2.0 -5.3 -2.6 2001 -8.1 -9.9 -1.3 -0.4 0.2 ****** 3.2 1.4 1.0 0.0 -2.5 -2.5 ****** 2002 -10.2 -8.1 -1.7 -1.2 0.3 2.1 3.7 3.6 1.7 0.1 -1.2 -5.1 -1.3 2003 -8.9 -4.1 -2.9 -1.1 -0.3 2.0 4.1 0.6 1.6 -0.4 -3.1 -5.6 -1.5 MEAN -8.9 -7.5 -3.6 -2.1 0.4 1.8 3.3 1.9 1.5 -0.6 -3.0 -5.3 -1.8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 3.59 3.66 4.44 3.74 5.11 5.28 6.62 5.90 6.04 4.65 3.26 3.42 4.64 1999 2.45 2.80 3.21 4.25 5.90 6.91 7.19 6.49 5.99 4.73 4.61 3.25 4.82 2000 2.55 2.85 3.38 4.46 5.30 5.41 5.61 5.71 5.32 4.96 4.49 3.73 4.48 2001 3.00 2.74 4.74 5.00 5.21 ****** 6.62 5.65 5.46 5.09 4.36 4.46 ****** 2002 2.78 3.10 4.54 4.70 5.22 5.96 6.71 6.63 5.75 5.12 4.77 3.68 4.91 2003 2.82 3.95 4.34 4.71 4.97 5.92 6.93 5.48 5.70 4.92 4.21 3.75 4.81 MEAN 2.87 3.19 4.11 4.48 5.29 5.90 6.61 5.98 5.71 4.91 4.28 3.72 4.75 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 4.30 4.39 5.35 4.54 6.21 6.44 8.08 7.20 7.36 5.65 3.95 4.13 5.63 1999 2.94 3.38 3.86 5.13 7.16 8.42 8.77 7.92 7.30 5.75 5.57 3.92 5.84 2000 3.07 3.43 4.07 5.42 6.45 6.60 6.85 6.97 6.49 6.02 5.40 4.48 5.44 2001 3.61 3.30 5.72 6.07 6.35 ****** 8.08 6.90 6.66 6.18 5.27 5.36 ****** 2002 3.34 3.73 5.47 5.69 6.36 7.27 8.20 8.10 7.02 6.22 5.75 4.42 5.96 2003 3.38 4.75 5.22 5.70 6.05 7.23 8.47 6.69 6.95 5.98 5.08 4.51 5.83 MEAN 3.44 3.83 4.95 5.42 6.43 7.19 8.08 7.30 6.96 5.96 5.17 4.47 5.77 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 2.07 2.73 4.08 9.92 13.53 20.34 23.10 22.35 18.21 12.04 8.10 7.25 11.98 1999 3.67 4.42 4.12 7.15 12.24 20.27 23.80 21.28 18.30 13.40 7.33 5.54 11.79 2000 3.63 3.25 4.73 10.98 15.62 19.00 20.86 21.12 19.37 10.97 4.39 3.56 11.46 2001 3.65 3.48 5.38 10.61 16.03 ****** 24.25 21.16 19.25 12.95 6.34 3.20 ****** 2002 3.18 3.70 5.85 8.93 15.50 21.10 23.77 23.54 21.01 13.10 4.77 2.97 12.29 2003 3.12 3.67 4.36 7.36 13.79 20.99 28.12 22.13 18.83 11.87 5.86 3.42 11.96 MEAN 3.22 3.54 4.75 9.16 14.45 20.34 23.98 21.93 19.16 12.39 6.13 4.32 11.95 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 68 62 58 34 34 25 27 25 31 34 32 38 39 1999 46 44 49 44 39 30 29 28 30 32 45 41 38 2000 45 50 46 35 31 27 26 26 27 37 58 56 39 2001 50 48 54 38 31 *** 26 26 28 34 47 63 *** 2002 50 49 50 43 31 27 26 26 26 34 56 60 40 2003 52 57 55 46 32 26 24 24 28 35 49 55 40 MEAN 52 52 52 40 33 27 26 26 28 34 48 52 39 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 78 74 69 52 46 34 34 33 43 44 43 50 50 1999 59 57 64 54 48 37 41 37 40 42 55 53 49 2000 55 65 57 45 39 33 34 34 37 45 67 69 48 2001 64 63 65 49 42 *** 33 35 37 44 56 76 *** 2002 66 60 60 54 41 34 34 32 33 47 64 71 50 2003 62 70 66 58 42 31 30 32 35 44 60 67 50 MEAN 64 65 64 52 43 34 34 34 38 44 58 64 50 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 57 52 47 20 23 19 22 19 23 25 20 29 30 1999 34 33 36 34 29 23 20 21 23 23 37 28 28 2000 35 35 35 26 23 21 20 20 20 30 48 42 30 2001 36 33 44 30 23 *** 19 20 21 27 39 51 *** 2002 34 40 40 34 24 21 21 21 21 26 48 49 32 2003 41 45 45 37 25 22 19 18 23 28 37 41 32 MEAN 40 40 41 30 25 21 20 20 22 27 38 40 30 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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 1998 2 6 2 3 0 0 1 0 0 0 0 1 15 1999 4 4 3 2 0 0 0 0 0 0 0 0 13 2000 2 0 0 0 0 0 0 0 0 1 3 4 10 2001 0 0 1 0 0 *** 0 0 0 0 0 10 *** 2002 4 1 1 2 0 0 0 0 2 0 2 1 13 2003 2 1 5 0 0 0 0 1 0 0 0 4 13 MEAN 2 2 2 1 0 0 0 0 0 0 1 3 11 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. HIGHEST AND LOWEST LIMITS FOR 6 YEARS DURING 1998-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 5.2 6.0 11.0 15.2 18.0 27.0 27.2 25.2 21.4 18.0 13.2 7.0 1 YEAR - DAY 2001- 4 1998- 5 1998-29 2001- 6 2000-26 1999- 9 2001-13 2001-23 2002- 5 2001-28 2001- 1 1998-15 LOW. DRY 03 -10.0 -11.0 -5.2 0.0 3.4 11.0 10.0 12.4 10.0 5.0 -4.0 -8.0 2 YEAR - DAY 1998-13 2002- 6 2003- 5 1998- 7 1998- 3 2000-15 2000-25 2001-18 1999-27 1998- 9 2001-25 2002-23 HIG. WET 03 2.8 4.0 8.0 8.4 10.1 17.0 16.0 13.4 12.2 9.6 8.2 4.0 3 YEAR - DAY 1998- 5 1999-23 1998-27 2001- 8 1998-26 1999- 5 1999- 8 1998-16 1998-15 2002- 6 2001- 1 2001-15 LOW. WET 03 -13.0 -13.2 -8.8 -2.0 1.3 5.0 5.0 6.2 4.3 0.0 -7.0 -10.2 4 YEAR - DAY 1998-13 2002- 6 2003- 5 1998- 9 1998- 5 2000-15 2000-16 2001-18 1999-30 1998- 9 2001-25 2003-14 HIG. DRY 09 11.2 13.0 17.0 23.0 27.2 30.2 34.0 32.0 30.0 25.2 18.2 17.2 5 YEAR - DAY 2000- 4 2003-26 2001-31 1998-15 2001-23 2003-24 2003-25 1998-23 2000- 9 2001- 4 2001- 2 1998-11 LOW. DRY 09 -6.0 -5.0 0.0 5.0 12.2 18.0 20.0 20.2 18.2 12.0 3.0 -3.0 6 YEAR - DAY 1998-12 2001- 1 1999- 4 1999- 3 1998- 4 2000-16 2000-22 2000-13 1999-26 2000- 5 2000- 9 2003-13 HIG. WET 09 5.4 7.4 9.2 11.6 18.0 19.0 20.0 20.2 18.0 15.0 10.0 8.2 7 YEAR - DAY 2000- 4 2003- 4 2001-30 2001-29 1999-22 1999-22 2001-10 1998-21 1998- 6 1998- 1 1999- 4 1998-10 LOW. WET 09 -8.0 -7.0 -3.2 1.0 5.2 7.0 10.2 10.0 9.0 5.4 0.0 -5.0 8 YEAR - DAY 1998-13 2001- 1 2003- 4 1999- 3 1998- 5 2000-16 2000-17 2000-13 2003-28 2000- 4 2000- 9 2003-13 HIG. DRY 15 7.2 9.2 15.0 22.0 25.0 28.4 39.0 30.0 27.2 22.3 15.0 11.2 9 YEAR - DAY 2000- 4 2003-26 1998-29 2002-29 2002-24 2003-23 1999- 6 1998- 1 2001- 5 1998- 1 1999- 2 1998-14 LOW. DRY 15 -8.0 -8.2 -4.0 3.0 10.0 15.0 19.2 17.0 15.2 8.4 0.0 -5.0 10 YEAR - DAY 1998-12 2001- 1 1999- 4 1999- 3 1998- 4 1999- 4 2001-29 2003-15 2003-28 1998-13 2000- 9 2003-13 HIG. WET 15 4.0 4.8 9.0 12.0 15.2 17.0 26.0 18.3 15.0 12.4 8.0 6.0 11 YEAR - DAY 2002- 2 2003-26 1998-29 2002-30 2002-24 2003-24 1999- 6 1998-15 2001- 5 1999- 9 1999- 4 2001-13 LOW. WET 15 -10.0 -10.0 -8.0 -1.0 4.2 7.0 9.0 9.3 8.0 3.6 -2.0 -8.0 12 YEAR - DAY 1998-12 2001- 1 1999- 4 1999- 3 1998- 3 2000-17 2000-25 2003-10 1999-30 1998-30 1999-30 2003-13 HIG. MIN. 2.0 5.0 10.0 12.0 15.2 21.0 24.0 20.0 17.0 13.5 7.2 4.0 13 YEAR - DAY 2002- 1 2003-27 1998-30 2002-30 1998-13 2003-14 1998- 6 1998-18 2002- 1 2002- 5 2000- 1 1998-13 LOW. MIN. -14.1 -13.3 -9.0 -2.2 1.0 6.4 9.0 9.0 5.4 2.0 -5.5 -9.5 14 YEAR - DAY 2001-30 2001- 1 2003- 5 2000- 1 1998- 4 2000-18 1999-21 1999-10 1999-27 1998-14 2003-25 2003-14 HIG. MAX. 12.0 13.6 20.0 24.0 28.2 32.0 39.0 36.0 31.0 28.0 20.0 18.0 15 YEAR - DAY 2000- 3 2003-26 1998-29 2002-30 2001-16 2003-24 1999- 6 2002-23 2003- 2 2003- 1 2001- 2 1998-11 LOW. MAX. -2.0 -1.0 1.0 6.4 14.5 22.0 23.0 23.0 21.0 13.2 6.2 -1.0 16 YEAR - DAY 1998-12 1999- 5 1999- 4 1999- 3 1998- 4 2000-14 1998-18 1998- 7 1999-27 2000- 5 2000-22 2003-13 HIG. PPTN 40.0 32.0 26.0 33.0 0.5 0.0 7.0 5.5 12.0 6.0 28.0 23.5 17 YEAR - DAY 2002-11 1998-10 1999- 1 2002-12 2001- 3 999-** 1998-16 2003- 1 2002-26 2000- 5 2002- 7 2001-12 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 6 YEARS DURING 1998-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 14.0 20.2 13.6 15.0 17.2 14.4 15.0 14.0 14.0 17.0 15.2 15.2 18 YEAR - DAY 1999- 6 2002- 7 2001- 2 1998- 7 2001-23 1999-28 2001- 1 2003-13 1998-25 1998- 9 2001-25 2001-10 DRY 15 - DRY 09 13.5 9.0 8.2 9.0 14.6 10.0 10.8 11.2 7.0 10.3 7.8 9.0 19 YEAR - DAY 1999- 7 1999- 3 2000- 2 1998-17 2001-15 1999- 4 2003-14 2003-15 2003-30 1998-29 1998- 5 1999-10 DRY 15 - DRY 03 9.2 14.0 9.8 11.2 14.8 10.8 17.0 12.8 12.2 13.2 13.2 11.5 20 YEAR - DAY 2000- 4 2002- 7 2001-27 2001-18 2001-23 2002- 1 1999- 6 1998- 1 1998-25 1998- 9 2001-25 1998- 7 WET 09 - WET 03 12.0 15.4 10.6 10.0 11.4 10.4 10.0 11.1 11.8 11.4 13.2 12.0 21 YEAR - DAY 2003- 3 2002- 7 2001- 2 1998-10 2001-22 1999-28 2001-10 1998-20 1998- 6 1998- 9 2001-25 1999-10 WET 15 - WET 09 10.0 8.6 8.0 7.0 8.2 10.0 9.8 8.1 5.7 7.2 5.4 7.4 22 YEAR - DAY 1999- 7 2000-16 1998-31 1998-10 2000- 5 1999-29 1999- 6 1998-21 1998- 6 1998-28 1998-18 1999-11 WET 15 - WET 03 8.0 11.8 7.8 8.2 8.4 8.0 15.0 9.3 6.2 9.4 10.0 9.8 23 YEAR - DAY 2000- 4 2002- 7 2001- 4 2001-16 2001-22 1999- 4 1999- 6 1998-15 1999- 8 1998- 9 2001-25 2003-27 DAY BY DAY DRY 03 11.0 9.8 8.2 6.2 11.6 9.8 8.0 10.0 7.7 7.4 10.4 8.2 24 YEAR - DAY 1999- 5 2002- 8 2003-14 2003- 5 1998- 3 1999-11 1998-19 2001-24 1998-27 1998-10 1999- 5 2003-29 DAY BY DAY WET 03 8.7 9.0 8.0 6.8 6.7 7.0 6.0 4.4 3.2 7.4 8.0 10.0 25 YEAR - DAY 1998- 7 1998-11 2003- 7 2001-23 1999-24 1999-11 1999- 3 1998-16 1999- 8 1998-10 2001-25 2003-29 DAY BY DAY DRY 09 9.5 10.0 7.0 8.8 6.2 7.0 5.6 8.8 6.0 8.2 7.0 10.6 26 YEAR - DAY 1998-12 2001- 2 2001-24 2001-16 2002- 1 2000-13 1998-19 1998-16 2003-26 2000- 4 2002-13 2003-13 DAY BY DAY WET 09 7.5 7.0 6.0 7.0 6.0 6.0 6.2 6.4 6.7 4.8 5.2 8.8 27 YEAR - DAY 1999- 3 1998-24 2003- 7 1998- 3 1999-23 1999-30 1999- 1 1998-20 1998- 6 2000- 4 1999-30 2003-13 DAY BY DAY DRY 15 10.0 9.4 9.0 8.0 10.7 10.0 10.0 9.8 6.0 6.0 7.0 8.8 28 YEAR - DAY 1998-12 2001- 2 2001- 1 2003-15 1998-13 2000-13 1999- 7 1998- 1 2003-26 1998-12 2000- 6 2003-13 DAY BY DAY WET 15 9.0 7.0 7.0 5.0 6.0 8.2 10.6 6.8 3.8 3.0 6.2 9.2 29 YEAR - DAY 1998-12 1998-19 1998-30 1998-17 1998-24 1999- 5 1999- 6 2003-25 1999-16 1999- 8 1999-30 2003-13 DAY BY DAY MIN. 8.9 10.0 8.0 8.0 6.6 11.8 7.0 9.0 7.8 6.0 7.0 8.0 30 YEAR - DAY 2001-30 2002- 8 2003- 7 1998-24 2002- 8 2003-26 2000-16 1999- 7 1998- 1 2000- 5 2003-29 2003-29 DAY BY DAY MAX. 7.0 8.8 7.0 6.0 5.8 5.2 7.2 7.8 5.0 7.8 7.2 10.2 31 YEAR - DAY 1998-17 2002- 7 1998-29 1998-21 2002- 1 2000-13 1999-25 1998- 1 2000-19 2000- 4 2003-25 2003-13 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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. -0.4 1.3 5.7 11.6 16.3 20.9 23.1 22.1 19.1 13.4 8.4 7.2 12.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.0 -3.3 0.9 5.6 10.5 15.2 17.4 15.9 12.4 6.4 2.1 0.9 6.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.3 5.9 10.6 17.7 22.1 26.5 28.9 28.3 25.7 20.3 14.7 13.5 18.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.3 9.1 9.7 12.1 11.6 11.3 11.5 12.4 13.3 13.9 12.6 12.6 11.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.15 3.15 4.37 4.19 4.99 5.38 6.59 4.93 5.94 4.06 1.64 2.88 4.27 MEAN OF MIXING RATIO AT 09 GMT. 4.21 4.44 4.90 3.73 4.84 5.86 7.15 6.94 6.82 5.39 4.41 3.99 5.22 MEAN OF MIXING RATIO AT 15 GMT. 3.40 3.38 4.05 3.32 5.50 4.60 6.12 5.84 5.37 4.50 3.73 3.37 4.43 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.0 -12.0 -6.0 0.0 1.0 9.3 12.0 12.0 8.0 2.0 -1.0 -3.0 -13.0 DAY 13 20 2 7 4 3 28 12 1 14 26 3 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 12.0 20.0 23.0 26.5 30.0 34.0 33.0 28.5 25.0 16.1 18.0 34.0 DAY 17 22 29 15 28 9 9 23 8 5 19 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.5 32.0 12.0 21.0 0.0 0.0 7.0 3.0 0.0 0.0 0.0 6.5 32.0 DAY 5 10 17 23 ** ** 16 1 ** ** ** 31 MONTHLY TOTAL PRECIPITATION IN MM. 28.7 83.0 32.0 31.5 0.0 0.0 10.0 3.0 0.0 0.0 0.0 6.5 194.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 73.8 16.2 6.7 3.3 NO. OF DAYS WITH PRECIPITATION. 6 6 5 3 0 0 2 1 0 0 0 1 24 NO. OF DAYS PRECIPITATION EQUAL 5 6 5 3 0 0 2 1 0 0 0 1 23 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 4 2 1 0 0 0 0 0 0 0 0 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 65 65 47 42 34 34 28 42 40 23 43 44 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 63 52 25 24 23 24 24 27 28 34 33 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 66 59 58 30 36 20 24 23 24 34 40 37 38 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 13 3 0 0 0 0 0 0 0 0 0 37 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 4 0 0 0 0 0 4 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 0 1 17 12 0 0 0 0 30 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 21 15 2 0 0 0 0 0 0 6 12 87 DATE OF START AND END FREEZING START = 8 NOV. END = 11 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. MEAN AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.4 2.5 3.0 9.0 15.7 21.7 22.5 20.9 19.2 14.4 7.8 3.2 11.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.6 -2.0 -0.8 3.2 9.2 15.6 14.4 13.1 11.5 6.8 0.4 -5.2 5.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.4 7.1 6.9 14.8 22.3 27.7 30.7 28.7 26.9 21.9 15.1 11.5 18.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.0 9.1 7.7 11.6 13.1 12.1 16.3 15.6 15.4 15.1 14.7 16.7 13.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.23 2.21 3.05 3.76 5.43 6.60 6.69 5.87 5.36 4.55 4.07 1.99 4.32 MEAN OF MIXING RATIO AT 09 GMT. 2.90 3.21 3.42 4.41 6.75 7.75 7.49 7.80 6.91 4.77 5.06 4.78 5.44 MEAN OF MIXING RATIO AT 15 GMT. 2.22 3.00 3.14 4.57 5.52 6.38 7.40 5.81 5.71 4.86 4.69 2.99 4.69 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -6.4 -7.0 1.0 5.0 9.0 9.0 9.0 5.4 5.0 -2.2 -8.0 -11.0 DAY 26 1 5 3 1 23 21 10 27 24 18 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 12.0 11.2 19.0 25.4 30.0 39.0 30.0 30.0 25.0 18.0 14.0 39.0 DAY 1 10 30 29 22 22 6 1 20 14 1 22 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 29.0 26.0 7.5 0.0 0.0 1.0 0.0 0.0 0.0 0.0 0.0 29.0 DAY 16 6 1 7 ** ** 7 ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 40.8 92.5 65.0 13.5 0.0 0.0 1.0 0.0 0.0 0.0 0.0 0.0 212.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 93.2 6.3 0.5 0.0 NO. OF DAYS WITH PRECIPITATION. 5 5 5 2 0 0 1 0 0 0 0 0 18 NO. OF DAYS PRECIPITATION EQUAL 5 5 5 2 0 0 1 0 0 0 0 0 18 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 4 2 0 0 0 0 0 0 0 0 0 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 50 43 54 49 46 35 38 33 40 41 52 36 43 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 42 41 45 34 32 27 24 29 26 24 39 46 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 47 49 49 50 37 29 25 23 25 30 44 41 37 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 17 4 1 0 0 0 0 0 0 0 0 26 48 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 5 0 0 0 0 0 5 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 1 0 0 0 0 0 0 0 0 0 0 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 20 6 1 0 0 0 30 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 23 18 0 0 0 0 0 0 0 18 31 121 DATE OF START AND END FREEZING START = 5 NOV. END = 23 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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. -0.2 0.8 4.0 13.3 18.4 20.2 21.6 22.1 20.0 13.3 5.7 2.6 11.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.2 -4.4 -2.4 6.9 11.9 12.9 15.0 15.5 13.6 7.9 1.1 -2.2 5.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.9 6.0 10.3 19.8 25.0 27.5 28.3 28.6 26.4 18.7 10.3 7.4 17.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.1 10.4 12.7 12.9 13.1 14.6 13.3 13.1 12.8 10.8 9.2 9.6 12.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.81 1.82 2.23 4.43 4.94 4.82 4.92 5.32 5.14 4.85 3.86 3.12 3.94 MEAN OF MIXING RATIO AT 09 GMT. 3.63 4.15 4.61 4.57 5.52 6.10 6.45 6.42 5.49 5.14 4.92 4.79 5.15 MEAN OF MIXING RATIO AT 15 GMT. 2.22 2.59 3.30 4.38 5.45 5.31 5.46 5.40 5.33 4.89 4.69 3.28 4.36 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.0 -9.0 -7.2 -2.2 8.6 6.4 10.0 12.2 10.0 4.0 -2.1 -8.0 -12.0 DAY 15 12 5 1 1 18 16 14 23 6 24 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.0 10.0 15.0 23.0 27.0 31.0 31.2 30.2 30.4 24.0 19.0 10.4 31.2 DAY 3 21 31 26 29 26 5 4 9 2 1 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6.0 11.0 16.0 22.0 DAY 29 ** ** ** ** ** ** ** ** 5 6 11 MONTHLY TOTAL PRECIPITATION IN MM. 39.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11.0 35.0 57.0 142.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.5 0.0 0.0 72.5 NO. OF DAYS WITH PRECIPITATION. 4 0 0 0 0 0 0 0 0 3 6 9 22 NO. OF DAYS PRECIPITATION EQUAL 3 0 0 0 0 0 0 0 0 3 6 8 20 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 0 0 0 0 0 0 0 0 1 3 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 41 40 41 44 36 32 30 33 36 44 59 57 41 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 59 51 28 24 23 24 23 21 32 52 61 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 45 50 46 33 33 26 23 22 24 35 62 50 37 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 21 8 0 0 0 0 0 0 0 0 10 63 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 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 6 11 4 2 0 0 0 23 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 28 1 0 0 0 0 0 0 13 26 127 DATE OF START AND END FREEZING START = 10 NOV. END = 1 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. MEAN AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.3 1.3 7.4 13.3 18.0 ***** 24.1 21.3 19.9 14.8 7.6 4.1 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -4.4 -4.7 1.6 7.2 11.2 ***** 18.3 15.3 13.6 8.4 1.5 -0.4 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.0 7.3 13.0 19.3 24.9 ***** 29.9 27.4 26.2 21.2 13.7 8.5 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.4 12.0 11.4 12.1 13.7 ***** 11.6 12.1 12.6 12.8 12.2 8.9 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.20 2.12 4.00 4.50 4.94 ***** 5.34 5.57 5.27 5.10 3.60 3.58 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.22 3.88 5.28 5.16 5.67 ***** 7.19 6.18 5.76 5.30 4.82 5.02 ***** MEAN OF MIXING RATIO AT 15 GMT. 2.59 2.23 4.85 5.35 5.03 ***** 7.33 5.20 5.36 4.86 4.66 4.76 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.1 -13.3 -2.0 3.0 6.2 ***** 14.2 10.0 10.0 5.0 -5.0 -5.0 ****** DAY 30 1 11 2 6 ** 1 16 25 11 25 19 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 11.0 17.2 23.2 28.2 ***** 33.4 30.2 30.0 26.0 20.0 12.4 ****** DAY 4 25 31 30 16 ** 10 30 5 4 2 30 24 HOUR MAXIMUM PRECIPITATION IN MM. 3.0 4.0 8.5 0.0 0.5 ***** 0.0 0.0 0.0 0.0 0.0 23.5 ****** DAY 11 15 11 ** 3 ** ** ** ** ** ** 12 MONTHLY TOTAL PRECIPITATION IN MM. 7.0 7.0 14.5 0.0 0.5 ***** 0.0 0.0 0.0 0.0 0.0 137.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 17.2 0.3 0.0 82.5 NO. OF DAYS WITH PRECIPITATION. 3 2 3 0 1 *** 0 0 0 0 0 12 *** NO. OF DAYS PRECIPITATION EQUAL 3 2 3 0 0 *** 0 0 0 0 0 12 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 *** 0 0 0 0 0 6 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 48 49 61 46 41 *** 28 34 36 44 48 60 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 52 47 31 25 *** 22 22 22 28 42 60 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 46 42 54 38 27 *** 26 21 24 30 52 70 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 17 0 0 0 *** 0 0 0 0 2 4 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 *** 4 0 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 0 *** 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 *** 18 4 1 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 *** 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 *** 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 8 0 0 *** 0 0 0 0 11 20 *** DATE OF START AND END FREEZING START = 19 NOV. END = 27 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 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. -0.3 1.9 7.8 10.7 16.6 20.8 23.0 23.5 20.6 15.5 6.3 2.0 12.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.6 -3.8 2.4 5.5 9.8 14.4 16.7 16.7 13.5 9.3 1.3 -3.1 6.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.9 7.6 13.3 15.9 23.4 27.3 29.2 30.2 27.7 21.7 11.3 7.0 18.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.5 11.4 10.9 10.4 13.6 12.9 12.5 13.5 14.2 12.4 10.0 10.1 11.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.85 2.25 4.23 4.80 4.80 5.58 6.28 5.78 5.41 5.33 4.00 2.77 4.42 MEAN OF MIXING RATIO AT 09 GMT. 3.48 4.02 4.75 4.57 5.58 6.61 7.16 7.75 6.29 5.22 5.21 4.49 5.43 MEAN OF MIXING RATIO AT 15 GMT. 2.97 3.04 4.63 4.73 5.29 5.68 6.69 6.35 5.55 4.80 5.11 3.79 4.89 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.4 -13.2 -2.2 0.0 2.4 11.2 11.4 15.0 8.0 5.8 -3.0 -9.2 -13.2 DAY 19 7 7 4 4 9 26 2 23 29 20 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 13.0 16.0 24.0 27.4 29.0 32.2 36.0 30.2 24.8 15.0 10.4 36.0 DAY 1 25 25 30 19 14 20 23 2 10 1 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 40.0 7.0 12.5 33.0 0.0 0.0 0.0 0.0 12.0 0.0 28.0 10.0 40.0 DAY 11 12 20 12 ** ** ** ** 26 ** 7 10 MONTHLY TOTAL PRECIPITATION IN MM. 105.0 11.5 15.0 48.0 0.0 0.0 0.0 0.0 24.0 0.0 41.5 15.0 260.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.6 18.5 9.2 21.7 NO. OF DAYS WITH PRECIPITATION. 6 4 2 4 0 0 0 0 2 0 3 3 24 NO. OF DAYS PRECIPITATION EQUAL 6 3 2 3 0 0 0 0 2 0 3 3 22 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 0 1 2 0 0 0 0 2 0 2 1 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 41 47 57 53 41 32 32 31 33 47 56 57 44 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 52 52 41 35 26 25 23 25 23 27 51 61 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 57 50 53 41 27 23 24 23 23 30 60 63 40 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 11 0 0 0 0 0 0 0 0 0 9 39 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 12 19 3 0 0 0 34 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 25 3 1 0 0 0 0 0 0 12 29 96 DATE OF START AND END FREEZING START = 17 NOV. END = 4 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. MEAN AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.2 3.7 5.8 9.2 15.6 21.7 26.6 22.5 20.4 14.4 6.5 2.3 12.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.3 -1.1 1.1 3.5 9.5 16.3 20.9 15.8 13.5 8.3 0.2 -3.9 6.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.7 8.5 10.4 14.9 21.7 27.1 32.4 29.2 27.3 20.5 12.9 8.5 18.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.0 9.6 9.3 11.4 12.2 10.8 11.5 13.4 13.8 12.2 12.7 12.4 11.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.03 3.20 3.76 4.27 4.84 5.28 6.21 5.01 5.21 4.75 3.75 2.36 4.22 MEAN OF MIXING RATIO AT 09 GMT. 3.87 4.56 4.59 5.04 5.33 6.80 7.51 6.20 6.59 5.00 4.20 4.83 5.38 MEAN OF MIXING RATIO AT 15 GMT. 2.55 4.07 4.67 4.83 4.74 5.68 7.06 5.24 5.31 5.01 4.67 4.07 4.82 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.2 -8.8 -9.0 -1.0 4.5 9.2 16.0 13.0 10.0 4.5 -5.5 -9.5 -9.5 DAY 27 20 5 8 7 26 10 2 27 31 25 14 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.0 13.6 16.0 19.5 25.0 32.0 34.2 32.6 31.0 28.0 18.2 11.2 34.2 DAY 7 26 28 26 29 24 25 17 2 1 2 23 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 13.5 15.0 4.5 0.0 0.0 1.0 5.5 0.0 0.0 0.0 11.5 16.0 DAY 19 16 29 19 ** ** 30 1 ** ** ** 30 MONTHLY TOTAL PRECIPITATION IN MM. 39.0 17.0 57.0 7.0 0.0 0.0 1.0 5.5 0.0 0.0 0.0 34.4 160.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 70.2 4.4 4.0 21.4 NO. OF DAYS WITH PRECIPITATION. 7 2 6 2 0 0 1 1 0 0 0 7 26 NO. OF DAYS PRECIPITATION EQUAL 7 2 6 2 0 0 1 1 0 0 0 6 25 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 3 0 0 0 0 0 0 0 0 1 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 49 58 58 54 42 29 28 29 35 43 55 46 44 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 57 53 48 39 26 25 20 22 25 29 39 59 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 50 61 61 45 28 25 24 22 25 34 53 60 41 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 4 4 0 0 0 0 0 0 0 6 21 61 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 22 0 0 0 0 0 25 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 1 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 30 15 5 0 0 0 59 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 19 8 2 0 0 0 0 0 0 15 26 101 DATE OF START AND END FREEZING START = 6 NOV. END = 8 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. MEAN AND EXTREMES FOR THE PERIOD 1998 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. 0.2 1.9 5.6 11.2 16.8 21.1 23.5 22.1 19.9 14.3 7.0 3.5 12.3 SD OF MEAN DAILY TEMPERATURE IN C. 0.63 1.05 1.87 1.91 1.20 0.63 1.74 0.89 0.61 0.85 1.02 1.93 1.19 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.2 -3.2 0.5 5.3 10.3 14.9 17.1 15.4 13.0 7.9 1.1 -2.3 6.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.5 7.1 10.8 17.1 23.2 27.2 29.9 28.7 26.7 20.7 13.0 9.4 18.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.7 10.3 10.3 11.7 12.9 12.3 12.8 13.3 13.7 12.9 11.9 11.7 12.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.22 2.46 3.61 4.33 5.00 5.54 6.01 5.42 5.39 4.78 3.49 2.79 4.25 MEAN OF MIXING RATIO AT 09 GMT. 3.73 4.05 4.60 4.59 5.62 6.63 7.16 6.89 6.31 5.14 4.77 4.66 5.34 MEAN OF MIXING RATIO AT 15 GMT. 2.66 3.06 4.11 4.54 5.26 5.54 6.68 5.64 5.44 4.83 4.60 3.72 4.67 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.1 -13.3 -9.0 -2.2 1.0 6.4 9.0 9.0 5.4 2.0 -5.5 -9.5 -14.1 YEAR - DAY 1-30 1- 1 3- 5 0- 1 98- 4 0-18 99-21 99-10 99-27 98-14 3-25 3-14 1-30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.0 13.6 20.0 24.0 28.2 32.0 39.0 36.0 31.0 28.0 20.0 18.0 39.0 YEAR - DAY 0- 3 3-26 98-29 2-30 1-16 3-24 99- 6 2-23 3- 2 3- 1 1- 2 98-11 99- 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 40.0 32.0 26.0 33.0 0.5 0.0 7.0 5.5 12.0 6.0 28.0 23.5 40.0 YEAR - DAY 2-11 98-10 99- 1 2-12 1- 3 **-** 98-16 3- 1 2-26 0- 5 2- 7 1-12 2-11 MONTHLY TOTAL PRECIPITATION IN MM. 43.3 35.2 30.6 16.7 0.1 0.0 2.0 1.4 4.0 1.8 12.8 41.7 189.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 57.6 8.8 3.9 29.7 NO. OF DAYS WITH PRECIPITATION. 5 3 4 2 0 0 1 0 0 1 2 5 23 NO. OF DAYS PRECIPITATION EQUAL 5 3 4 2 0 0 1 0 0 1 2 5 23 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 1 1 0 0 0 0 0 0 1 2 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 50 50 56 49 41 32 32 31 37 43 49 50 43 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 53 47 32 26 25 23 24 24 28 43 53 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 52 52 54 40 31 25 24 22 24 32 52 54 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 12 3 0 0 0 0 0 0 0 1 12 49 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 6 0 0 0 0 0 7 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 0 0 4 18 10 2 0 0 0 34 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 24 13 1 0 0 0 0 0 0 13 24 105 DATE OF START AND END FREEZING START = 5 NOV. END = 11 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION NIR LATITUDE 31 22 N DATA PROCESSING CENTER LONGITUDE 54 18 E ELEVATION 2470 MET. MEAN AND EXTREMES FOR THE PERIOD 1998 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. 0.7 2.1 6.0 12.0 17.6 22.3 24.7 23.3 21.3 15.7 8.3 4.6 13.2 AVERAGE DEW POINT TEMPERATURE. IN C. -8.9 -7.5 -3.6 -2.1 0.4 1.8 3.3 1.9 1.5 -0.6 -3.0 -5.3 -1.8 AVERAGE OF MIXING RATIO IN G/KG 2.87 3.19 4.11 4.48 5.29 5.90 6.61 5.98 5.71 4.91 4.28 3.72 4.75 AVERAGE OF VAPOUR PRESSURE HPA 3.44 3.83 4.95 5.42 6.43 7.19 8.08 7.30 6.96 5.96 5.17 4.47 5.77 AVERAGE OF SATURATION DEFICIT IN HPA 3.22 3.54 4.75 9.16 14.45 20.34 23.98 21.93 19.16 12.39 6.13 4.32 11.95 AVERAGE RELATIVE HUMIDITY IN PERCENT 52 52 52 40 33 27 26 26 28 34 48 52 39 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 64 65 64 52 43 34 34 34 38 44 58 64 50 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 40 40 41 30 25 21 20 20 22 27 38 40 30 NO. OF DAYS PRECIPITATION EQUAL 2 2 2 1 0 0 0 0 0 0 1 3 11 OR MORE THAN 5 MM.