IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1970 ****** ****** ****** ****** ****** ****** ****** 30.3 23.7 18.5 13.5 5.5 ****** 1971 3.1 7.6 13.7 17.4 25.6 30.0 29.0 28.2 21.9 17.6 12.4 7.4 26.9 1972 0.7 -1.4 9.4 17.4 20.3 27.9 28.5 25.1 23.1 19.0 12.5 2.0 29.9 1973 0.3 8.9 11.4 17.8 24.0 29.8 30.4 28.0 23.2 18.2 11.6 4.2 30.1 1974 1.0 1.7 12.0 17.5 24.7 28.6 29.8 26.8 23.9 14.7 11.7 4.1 28.8 1975 3.5 6.4 12.8 16.5 22.5 28.3 30.9 28.1 24.2 16.9 10.0 6.2 27.4 1976 6.4 3.8 7.2 14.4 22.0 27.6 30.8 26.9 24.9 18.7 9.0 4.3 27.0 1977 -0.7 ****** 15.8 17.8 21.6 30.3 31.3 27.9 23.2 18.3 11.7 7.4 ****** 1978 3.7 7.0 11.4 19.6 24.0 28.5 29.5 27.1 23.9 19.5 9.8 7.6 25.8 1979 4.3 7.3 9.6 20.1 20.4 28.2 30.1 25.9 23.4 20.7 10.2 5.1 25.8 1980 3.5 4.6 ****** 19.9 24.7 29.1 28.4 27.4 23.8 18.3 13.0 7.3 ****** 1981 5.8 7.8 13.4 19.5 23.4 27.5 29.4 27.3 24.0 16.4 12.8 8.9 23.6 1982 4.6 3.7 ****** ****** 24.1 29.1 29.5 28.3 22.6 18.0 7.7 2.4 ****** 1983 2.1 6.3 8.9 16.2 24.3 29.9 31.5 30.1 24.8 17.2 13.8 5.8 29.4 1984 4.1 2.0 12.9 19.1 ****** 28.2 29.7 30.1 23.3 16.0 13.3 2.3 ****** 1985 4.6 9.7 10.1 19.3 23.6 29.8 31.2 26.0 23.6 17.4 11.9 6.4 26.6 1986 5.6 5.4 7.3 17.0 23.9 28.2 29.3 26.8 23.6 20.8 11.6 4.3 24.9 1987 6.2 8.1 14.2 18.3 24.3 27.7 29.6 29.6 25.9 16.0 12.8 6.6 23.4 1988 4.4 5.8 11.4 18.8 24.8 29.1 31.9 28.3 25.4 18.7 ****** 8.3 ****** 1989 1.5 2.4 11.8 18.1 22.2 29.3 30.9 27.7 24.7 19.8 12.2 8.0 29.4 1990 3.2 5.7 11.3 17.6 25.6 29.8 30.1 30.2 25.6 18.5 13.2 5.8 27.0 1991 3.8 4.6 9.6 17.8 21.8 27.8 29.2 27.5 23.1 17.1 11.7 7.4 25.4 1992 2.8 5.8 7.2 16.8 19.5 28.0 28.8 26.4 22.8 16.8 12.9 5.9 26.1 1993 1.6 6.7 9.3 18.3 22.2 27.3 28.3 27.1 24.4 ****** 10.9 5.8 ****** 1994 5.5 6.1 12.2 17.4 23.2 29.1 30.2 28.8 20.5 16.6 14.6 4.8 25.4 1995 5.9 6.8 11.1 17.2 22.4 28.2 32.7 29.1 ****** 18.7 13.0 4.1 ****** 1996 2.6 6.9 10.2 17.7 23.9 28.5 29.1 28.1 27.7 17.9 9.4 7.3 26.5 1997 6.7 5.6 10.5 16.9 22.6 30.0 31.9 29.3 24.7 20.7 10.2 6.1 26.3 1998 4.1 5.6 11.7 19.9 23.6 26.7 30.8 29.3 27.2 19.8 14.4 10.5 26.6 1999 4.5 10.0 11.3 17.6 24.1 30.2 30.1 28.8 24.9 19.7 11.3 7.5 25.7 2000 4.9 6.3 11.9 21.1 26.8 28.2 28.4 27.6 25.7 18.3 9.5 6.1 23.5 2001 4.1 6.9 13.4 21.5 26.7 29.5 30.8 28.7 25.1 19.9 12.4 8.2 26.7 2002 5.5 8.3 14.4 18.2 24.5 29.2 29.5 30.1 25.8 21.9 11.5 4.0 26.1 2003 5.8 8.0 11.8 19.7 21.9 28.9 32.5 28.6 24.2 20.8 9.7 4.3 28.2 MEAN 3.8 5.9 11.3 18.2 23.4 28.7 30.1 28.1 24.2 18.4 11.7 5.9 26.3 SD 1.87 2.41 2.10 1.49 1.73 0.94 1.19 1.34 1.44 1.65 1.65 1.95 1.65 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 22.7 16.4 11.5 6.5 -0.5 ****** 1971 -2.3 1.8 7.2 11.5 18.6 22.7 22.3 20.6 14.7 10.5 6.6 1.5 11.3 1972 -3.7 -6.4 3.4 10.7 13.5 20.7 21.3 18.1 15.3 11.7 6.0 -2.2 9.0 1973 -6.2 2.3 4.8 11.3 16.4 21.8 22.7 20.8 15.8 10.3 4.6 -1.9 10.2 1974 -3.4 -3.2 5.6 9.0 17.5 21.4 23.3 19.3 17.0 7.4 5.2 -0.8 9.9 1975 -1.3 0.7 6.9 10.0 15.7 21.0 23.2 20.6 16.5 9.9 4.0 0.8 10.7 1976 0.0 -1.1 1.4 6.2 13.7 19.6 22.8 18.4 16.8 11.8 3.2 -0.6 9.4 1977 -4.3 ****** 7.9 11.0 14.4 22.6 23.7 20.3 14.9 12.0 5.7 2.1 ****** 1978 -1.7 1.4 5.0 12.5 15.9 21.0 22.8 19.3 16.0 12.6 5.4 2.5 11.0 1979 -0.3 1.4 3.5 12.6 13.2 20.6 22.4 19.0 15.9 12.6 3.0 -0.1 10.3 1980 -1.9 -0.7 ****** 12.3 16.8 21.4 20.6 19.1 15.5 11.3 6.0 1.3 ****** 1981 0.1 2.0 6.7 12.3 16.1 20.6 22.6 20.2 16.4 10.4 5.7 3.1 11.3 1982 -0.8 -0.9 ****** ****** 16.9 21.4 22.1 20.6 15.3 11.6 2.1 -2.2 ****** 1983 -2.3 0.5 3.2 10.5 17.4 22.5 24.2 22.5 17.7 10.1 6.9 1.0 11.2 1984 -1.7 -2.9 7.6 12.1 ****** 21.0 23.2 22.5 16.0 9.0 7.6 -3.1 ****** 1985 -0.6 2.4 3.7 12.4 16.4 22.4 23.8 19.7 15.6 11.0 6.2 1.6 11.2 1986 -0.1 1.0 2.8 11.2 17.4 21.1 22.6 20.0 16.4 14.1 5.8 -0.4 11.0 1987 -0.1 1.9 8.2 11.9 17.2 20.5 23.2 23.1 18.8 10.4 6.0 0.8 11.8 1988 -1.0 0.8 5.3 11.8 18.0 21.8 25.2 21.5 18.4 12.0 ****** 2.9 ****** 1989 -3.9 -2.8 6.2 11.4 15.0 22.1 24.5 21.1 17.2 12.7 5.8 2.6 11.0 1990 -0.7 0.6 4.4 10.4 17.9 22.6 23.0 23.0 17.7 11.4 6.2 0.3 11.4 1991 -0.7 -0.9 4.4 11.0 14.8 20.4 21.8 19.6 15.0 10.3 5.4 2.7 10.3 1992 -2.2 -0.3 1.2 10.9 13.7 20.9 21.0 19.3 16.1 9.4 5.2 1.0 9.7 1993 -2.9 1.7 3.6 11.4 14.5 19.2 20.7 19.8 16.8 ****** 3.9 0.2 ****** 1994 -0.1 -0.5 5.5 10.0 16.2 21.5 22.6 20.8 13.0 10.3 8.3 -0.9 10.6 1995 0.1 1.5 4.8 10.7 16.1 21.2 25.4 21.3 ****** 11.9 6.1 0.3 ****** 1996 -1.4 1.9 5.6 10.6 17.2 21.9 21.9 21.3 20.5 11.6 3.6 1.4 11.3 1997 1.2 -1.2 4.4 10.3 15.4 23.3 24.7 21.2 17.1 12.9 5.5 1.5 11.4 1998 -0.5 0.7 5.6 11.7 17.1 19.8 24.0 22.7 20.2 12.7 7.3 3.8 12.1 1999 -0.2 4.1 6.1 11.0 16.8 22.0 23.3 22.0 16.8 12.2 5.4 2.0 11.8 2000 0.1 0.5 4.5 13.2 19.3 20.6 21.8 19.4 17.9 11.4 3.6 1.4 11.1 2001 -0.8 1.0 6.0 14.4 20.1 22.5 24.2 21.5 17.9 13.0 5.8 3.3 12.4 2002 0.3 1.2 6.1 11.0 16.7 21.9 22.9 22.7 18.1 14.8 5.5 -0.8 11.7 2003 0.5 1.7 5.3 12.8 15.1 21.6 24.9 21.7 16.9 13.1 3.1 -1.1 11.3 MEAN -1.3 0.3 5.1 11.3 16.3 21.4 23.0 20.8 16.7 11.5 5.4 0.7 10.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 38.0 31.0 25.6 20.6 11.5 ****** 1971 8.5 13.4 20.2 23.3 32.6 37.3 35.8 35.7 29.0 24.7 18.3 13.4 24.3 1972 5.1 3.7 15.3 24.2 27.0 35.1 35.8 32.1 31.0 26.2 19.0 6.1 21.7 1973 6.9 15.5 18.0 24.3 31.5 37.7 38.1 35.2 30.5 26.2 18.7 10.4 24.4 1974 5.4 6.6 18.4 24.8 31.9 35.9 36.2 34.2 30.8 22.0 18.2 9.1 22.8 1975 8.2 12.1 18.7 23.1 29.4 35.6 38.7 35.5 31.8 23.8 16.0 11.6 23.7 1976 12.8 8.7 13.0 22.5 30.3 35.6 38.8 35.4 33.0 25.5 14.9 9.3 23.3 1977 2.9 ****** 23.6 24.5 28.9 37.9 38.8 35.5 31.5 24.6 17.8 12.8 ****** 1978 9.1 12.4 17.8 26.8 32.2 36.0 36.3 34.9 31.9 26.5 14.1 12.8 24.2 1979 8.9 13.2 15.9 27.5 27.6 35.7 37.7 32.8 30.9 28.9 17.3 10.3 23.9 1980 8.9 9.9 ****** 27.5 32.6 36.8 36.3 35.8 32.0 25.2 20.0 13.4 ****** 1981 11.3 13.6 20.2 26.7 30.7 34.4 36.3 34.4 31.7 22.4 19.9 14.7 24.7 1982 9.7 8.2 15.8 ****** 31.3 36.7 36.9 36.0 29.9 24.4 13.2 6.9 ****** 1983 6.7 12.2 14.7 21.8 31.2 37.2 38.8 37.7 32.0 24.3 20.8 10.5 24.0 1984 9.8 8.0 19.0 26.0 ****** 35.5 36.2 37.6 30.6 23.0 19.0 7.6 ****** 1985 9.7 17.0 16.1 26.2 30.8 37.3 38.6 32.3 31.6 23.8 17.7 11.1 24.3 1986 11.0 9.9 12.0 22.8 30.5 35.3 35.8 33.5 30.8 27.5 17.1 9.0 22.9 1987 12.6 14.3 20.1 25.0 31.5 34.8 36.1 36.1 32.9 21.6 19.5 12.7 24.8 1988 9.7 10.8 17.5 25.9 31.7 36.5 38.5 35.2 32.5 25.3 ****** 13.7 ****** 1989 7.0 7.6 17.5 24.8 29.4 36.4 37.3 34.3 32.2 27.0 18.6 13.5 23.8 1990 7.2 10.7 18.1 24.9 33.3 37.0 37.2 37.3 33.4 25.6 20.2 11.3 24.7 1991 8.3 10.1 14.8 24.6 28.8 35.1 36.6 35.3 31.1 23.9 17.9 12.1 23.2 1992 7.7 11.9 13.3 22.7 25.2 35.1 36.6 33.4 29.5 24.2 20.7 10.8 22.6 1993 6.1 11.8 14.9 25.1 29.9 35.4 35.8 34.5 32.1 ****** 17.9 11.5 ****** 1994 11.2 12.6 18.9 24.7 30.3 36.6 37.8 36.9 27.9 22.9 20.8 10.6 24.3 1995 11.7 12.1 17.4 23.7 28.7 35.2 40.0 36.9 ****** 25.6 19.9 7.9 ****** 1996 6.7 11.9 14.8 24.2 30.7 35.1 36.4 34.9 34.9 24.4 15.4 13.1 23.5 1997 12.2 12.3 16.6 23.6 29.6 36.6 39.0 37.4 32.4 28.2 15.0 10.7 24.5 1998 8.8 10.6 17.8 27.8 30.1 33.6 37.5 36.0 34.3 26.7 21.6 17.3 25.2 1999 9.3 15.9 16.6 24.1 31.5 38.4 37.0 35.7 32.9 27.3 17.3 13.1 24.9 2000 9.5 12.0 19.2 29.0 34.4 35.8 35.1 35.7 33.6 25.3 15.5 10.8 24.7 2001 8.9 12.8 20.7 28.6 33.4 36.6 37.5 36.0 32.3 26.7 18.9 13.1 25.4 2002 10.7 15.4 22.7 25.4 32.3 36.5 36.2 37.5 33.4 28.9 17.4 8.9 25.4 2003 11.2 14.3 18.3 26.6 28.6 36.1 40.1 35.4 31.5 28.4 16.4 9.8 24.7 MEAN 8.9 11.6 17.4 25.1 30.6 36.1 37.3 35.4 31.7 25.4 18.0 11.2 24.1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 15.3 14.6 14.1 14.1 12.0 ****** 1971 10.8 11.6 13.0 11.8 14.0 14.6 13.5 15.1 14.3 14.2 11.7 11.9 13.0 1972 8.8 10.1 11.9 13.5 13.5 14.4 14.5 14.0 15.8 14.5 13.0 8.3 12.7 1973 13.1 13.2 13.2 13.0 15.1 15.9 15.4 14.4 14.7 15.9 14.1 12.3 14.2 1974 8.8 9.8 12.8 15.8 14.4 14.5 12.9 14.9 13.8 14.6 13.0 9.9 12.9 1975 9.5 11.4 11.8 13.1 13.7 14.6 15.5 14.9 15.3 13.9 12.0 10.8 13.0 1976 12.8 9.8 11.6 16.3 16.6 16.0 16.0 17.0 16.2 13.7 11.7 9.9 14.0 1977 7.2 ****** 15.7 13.5 14.5 15.3 15.1 15.2 16.6 12.6 12.1 10.7 ****** 1978 10.8 11.0 12.8 14.3 16.3 15.0 13.5 15.6 15.9 13.9 8.7 10.3 13.2 1979 9.2 11.8 12.4 14.9 14.4 15.1 15.3 13.8 15.0 16.3 14.3 10.4 13.6 1980 10.8 10.6 ****** 15.2 15.8 15.4 15.7 16.7 16.5 13.9 14.0 12.1 ****** 1981 11.2 11.6 13.5 14.4 14.6 13.8 13.7 14.2 15.3 12.0 14.2 11.6 13.3 1982 10.5 9.1 ****** ****** 14.4 15.3 14.8 15.4 14.7 12.8 11.1 9.1 ****** 1983 9.0 11.7 11.5 11.3 13.8 14.7 14.6 15.2 14.3 14.2 13.9 9.5 12.8 1984 11.5 10.9 11.4 13.9 ****** 14.5 13.0 15.1 14.6 14.0 11.4 10.7 ****** 1985 10.3 14.6 12.4 13.8 14.4 14.9 14.8 12.6 16.0 12.8 11.5 9.5 13.1 1986 11.1 8.9 9.2 11.5 13.1 14.2 13.2 13.5 14.4 13.4 11.3 9.4 11.9 1987 12.7 12.4 11.9 13.1 14.3 14.3 12.9 13.0 14.1 11.2 13.5 11.9 12.9 1988 10.7 10.0 12.2 14.1 13.7 14.7 13.3 13.7 14.1 13.3 ****** 10.8 ****** 1989 10.9 10.4 11.3 13.4 14.4 14.3 12.8 13.2 15.0 14.3 12.8 10.9 12.8 1990 7.9 10.1 13.7 14.5 15.4 14.4 14.2 14.3 15.7 14.2 14.0 11.0 13.3 1991 9.0 11.0 10.4 13.6 14.0 14.7 14.8 15.7 16.1 13.6 12.5 9.4 12.9 1992 9.9 12.2 12.1 11.8 11.5 14.2 15.6 14.1 13.4 14.8 15.5 9.8 12.9 1993 9.0 10.1 11.3 13.7 15.4 16.2 15.1 14.7 15.3 ****** 14.0 11.3 ****** 1994 11.3 13.1 13.4 14.7 14.1 15.1 15.2 16.1 14.9 12.6 12.5 11.5 13.7 1995 11.6 10.6 12.6 13.0 12.6 14.0 14.6 15.6 ****** 13.7 13.8 7.6 ****** 1996 8.1 10.0 9.1 13.6 13.5 13.2 14.5 13.6 14.4 12.8 11.8 11.7 12.2 1997 11.0 13.5 12.2 13.3 14.2 13.3 14.3 16.2 15.3 15.3 9.5 9.2 13.1 1998 9.3 9.9 12.1 16.1 13.0 13.8 13.5 13.3 14.1 14.0 14.3 13.5 13.1 1999 9.5 11.8 10.5 13.1 14.7 16.4 13.7 13.7 16.1 15.1 11.9 11.1 13.1 2000 9.4 11.5 14.7 15.8 15.1 15.2 13.3 16.3 15.7 13.9 11.9 9.4 13.5 2001 9.7 11.8 14.7 14.2 13.3 14.1 13.3 14.5 14.3 13.7 13.1 9.8 13.0 2002 10.4 14.2 16.6 14.4 15.6 14.6 13.3 14.8 15.3 14.1 11.9 9.7 13.7 2003 10.7 12.6 13.0 13.8 13.5 14.5 15.2 13.7 14.6 15.3 13.3 10.9 13.4 MEAN 10.2 11.3 12.4 13.8 14.3 14.7 14.3 14.7 15.0 13.9 12.7 10.5 13.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 4.76 4.35 4.21 4.72 3.23 ****** 1971 3.14 3.37 3.91 5.40 6.45 5.70 6.17 4.89 2.96 2.73 4.85 3.81 4.45 1972 3.38 2.81 4.85 5.81 6.43 8.40 7.59 8.07 6.40 5.29 4.47 3.62 5.59 1973 2.85 4.53 4.93 6.01 7.54 10.70 13.74 11.86 8.02 5.68 4.27 3.09 6.93 1974 3.12 3.64 5.51 6.26 6.77 9.21 10.87 11.05 8.14 5.21 4.61 3.60 6.50 1975 3.53 3.92 5.18 7.15 9.20 9.83 10.39 10.41 8.97 5.91 4.55 4.44 6.96 1976 4.11 3.72 4.65 7.23 9.57 9.39 11.33 10.20 8.92 7.15 4.06 3.68 7.00 1977 3.06 ****** 5.77 7.90 8.86 9.92 10.07 10.83 9.33 6.96 5.26 3.98 ****** 1978 3.35 4.21 4.37 5.27 6.91 7.88 7.37 6.08 6.21 5.39 5.12 4.63 5.57 1979 3.95 4.19 4.93 6.99 7.21 8.90 7.52 7.11 8.37 7.34 4.73 4.27 6.29 1980 3.49 3.91 ****** 6.99 7.00 6.69 8.77 8.42 6.64 6.29 5.26 3.94 ****** 1981 3.87 4.48 4.94 6.10 8.21 8.24 8.93 8.78 6.01 5.82 4.17 4.13 6.14 1982 3.77 3.49 4.99 ****** 7.03 8.93 7.62 8.07 6.93 7.06 3.83 3.27 ****** 1983 3.20 3.54 4.08 6.76 6.60 6.75 6.28 7.14 5.02 4.35 4.06 3.42 5.10 1984 2.88 2.88 5.74 5.19 ****** 5.70 5.89 6.31 4.90 3.81 4.62 2.74 ****** 1985 3.67 3.34 3.90 4.90 5.07 7.40 7.63 5.96 3.86 4.21 4.49 4.06 4.87 1986 3.15 4.45 4.35 6.73 6.32 6.52 7.04 6.35 5.79 4.95 4.52 3.88 5.34 1987 3.08 3.74 5.53 5.80 6.44 6.47 7.85 7.76 6.12 5.11 3.75 3.60 5.44 1988 3.01 3.92 4.88 6.69 6.77 6.45 9.42 7.48 6.95 5.44 ****** 4.16 ****** 1989 2.44 2.90 4.31 4.34 5.51 5.52 6.38 6.84 5.66 5.34 4.36 3.55 4.76 1990 3.87 4.24 4.25 4.97 5.79 6.70 7.71 7.79 5.86 4.68 4.00 3.62 5.29 1991 3.77 3.72 5.54 6.15 6.59 6.78 6.75 6.05 5.76 5.83 5.06 4.70 5.56 1992 3.25 3.51 3.78 6.12 6.95 7.56 7.75 7.18 7.03 5.59 4.43 4.06 5.60 1993 2.86 4.44 4.39 6.20 6.28 7.64 7.35 7.78 6.62 ****** 4.69 3.52 ****** 1994 3.59 3.33 5.03 4.86 6.64 8.13 7.39 7.64 5.56 5.32 5.62 3.20 5.53 1995 3.41 3.93 4.68 6.28 5.98 7.58 9.25 8.49 ****** 5.32 4.67 3.83 ****** 1996 3.35 4.09 5.36 5.93 6.49 7.09 7.11 7.15 7.41 5.89 3.93 3.88 5.64 1997 3.85 3.38 4.57 6.00 6.33 7.41 7.71 7.04 6.91 5.78 5.24 4.21 5.70 1998 3.49 3.53 4.53 5.42 6.82 7.00 7.20 7.22 7.28 5.86 4.62 3.86 5.57 1999 3.26 4.22 4.96 5.47 6.13 7.05 7.09 7.36 6.94 6.41 4.84 3.50 5.60 2000 3.21 3.69 4.19 5.22 6.61 6.31 5.79 6.48 6.37 4.82 3.69 3.99 5.03 2001 3.24 3.46 4.47 5.53 6.00 6.03 5.97 6.33 5.25 5.10 4.11 5.30 5.07 2002 3.78 3.79 3.89 7.00 6.55 5.96 6.75 6.61 4.44 5.09 4.44 3.92 5.18 2003 3.72 3.99 4.61 6.63 5.96 6.51 7.91 6.58 5.22 4.66 3.23 3.58 5.22 MEAN 3.39 3.77 4.73 6.05 6.79 7.47 7.96 7.60 6.37 5.42 4.50 3.84 5.65 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 1.92 3.11 3.98 3.88 3.71 ****** 1971 4.04 3.66 4.20 5.04 8.05 6.64 6.56 5.57 3.03 2.84 5.07 4.21 4.91 1972 4.13 3.79 5.21 6.14 6.31 8.88 9.23 8.72 7.54 4.97 5.05 4.07 6.17 1973 3.66 5.10 6.14 6.15 7.41 10.70 15.31 14.99 10.73 6.17 5.02 3.94 7.94 1974 3.63 4.62 7.26 6.78 7.09 8.95 12.02 14.33 10.25 6.37 6.42 4.66 7.70 1975 4.57 4.98 6.33 8.87 10.82 11.84 12.62 12.73 10.78 7.32 5.90 5.56 8.53 1976 5.57 4.52 5.62 8.77 10.43 11.93 14.28 12.87 9.89 8.87 4.91 4.88 8.54 1977 3.72 ****** 7.23 8.85 10.49 11.81 12.30 13.65 11.44 8.92 5.17 4.29 ****** 1978 4.51 5.55 5.34 4.69 7.51 8.80 7.55 6.47 7.11 5.84 5.19 5.46 6.17 1979 4.48 5.10 5.44 8.50 7.94 9.60 9.03 8.95 10.07 9.17 5.65 5.18 7.43 1980 4.72 5.20 ****** 8.02 7.90 8.20 10.25 11.16 8.38 7.86 6.71 4.68 ****** 1981 4.84 5.32 5.43 6.05 8.59 9.28 9.98 9.73 7.78 6.62 5.89 5.24 7.06 1982 4.72 4.31 5.81 ****** 6.83 10.63 8.84 9.51 8.24 7.88 4.97 4.12 ****** 1983 4.15 4.90 4.58 6.87 6.49 7.35 7.09 7.67 6.24 5.30 5.44 4.31 5.87 1984 3.74 3.90 6.14 5.79 ****** 5.93 4.98 6.28 5.57 4.53 5.45 3.53 ****** 1985 4.80 4.21 4.00 4.72 5.16 8.33 7.72 5.65 4.54 4.82 5.29 4.83 5.34 1986 3.71 5.40 4.73 6.91 6.17 6.20 6.17 6.53 6.02 5.93 4.88 4.70 5.61 1987 3.31 4.38 6.47 6.17 6.96 6.81 7.19 7.32 6.41 6.03 4.95 4.42 5.87 1988 3.76 4.51 5.62 6.90 6.08 6.90 9.92 9.04 7.89 6.27 ****** 4.58 ****** 1989 3.25 3.53 4.93 5.27 5.24 5.20 6.68 6.57 6.79 6.59 5.65 5.17 5.41 1990 4.71 5.36 5.40 5.73 6.63 7.30 9.94 9.68 7.07 5.83 4.92 4.29 6.41 1991 4.96 4.63 7.26 7.85 7.54 7.43 8.24 7.64 7.73 6.50 5.71 5.27 6.73 1992 4.07 4.79 5.13 7.14 7.85 8.74 8.20 8.38 7.06 6.61 5.42 4.79 6.51 1993 3.58 5.41 5.81 7.95 8.20 8.59 7.76 8.17 6.92 ****** 4.98 3.88 ****** 1994 4.20 3.70 6.17 5.28 6.56 7.85 7.36 8.09 6.03 5.69 6.62 4.15 5.98 1995 4.32 4.50 5.61 7.50 6.08 8.32 9.44 8.84 ****** 6.01 5.25 3.94 ****** 1996 3.57 4.98 6.18 6.50 6.64 7.17 8.47 7.22 7.57 5.87 4.41 4.03 6.05 1997 4.00 3.86 4.40 6.85 7.00 7.64 8.65 8.76 7.81 6.26 6.05 4.82 6.34 1998 4.12 4.41 5.39 6.92 6.53 7.00 8.09 8.13 7.84 6.25 5.30 4.22 6.18 1999 3.80 4.81 5.39 6.39 7.04 9.17 8.36 8.49 8.76 6.67 5.64 3.94 6.54 2000 3.63 4.27 5.16 6.36 6.88 6.71 6.70 6.70 7.58 5.89 4.62 4.74 5.77 2001 3.86 4.50 6.29 5.90 6.23 6.72 5.82 6.21 5.49 5.36 4.46 6.30 5.60 2002 4.20 4.11 4.44 7.27 6.16 5.87 6.67 6.28 4.80 5.83 4.42 4.18 5.35 2003 4.13 4.27 4.64 6.00 4.66 6.33 7.79 6.06 5.17 4.80 3.39 4.47 5.14 MEAN 4.14 4.59 5.56 6.70 7.18 8.15 8.77 8.49 7.33 6.18 5.24 4.55 6.40 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 2.92 3.08 4.55 4.90 3.67 ****** 1971 4.01 3.49 4.19 4.65 7.19 6.37 6.28 5.54 3.63 3.06 4.92 4.45 4.82 1972 3.74 3.19 5.27 5.98 6.47 9.52 9.23 8.69 7.36 6.04 5.40 3.89 6.23 1973 3.34 4.89 5.75 5.92 7.32 11.98 17.83 15.23 10.22 7.21 5.21 4.02 8.24 1974 3.40 4.41 6.74 6.80 7.56 10.02 12.81 15.70 10.25 6.46 6.25 4.38 7.90 1975 4.22 4.81 5.88 8.41 10.22 12.02 12.29 12.07 10.62 7.38 5.60 5.49 8.25 1976 5.69 4.48 5.57 8.63 9.42 11.81 13.95 12.70 10.39 8.90 4.95 4.43 8.41 1977 3.56 ****** 6.68 8.80 10.58 11.57 13.13 13.62 11.40 8.68 5.70 4.64 ****** 1978 4.42 5.20 5.33 5.52 7.65 9.26 7.37 7.10 7.39 5.96 5.44 5.24 6.32 1979 4.37 4.86 5.75 8.04 8.49 9.88 9.69 9.06 10.76 9.34 5.56 4.94 7.56 1980 4.21 4.83 ****** 8.59 7.54 7.57 10.08 10.93 8.19 7.51 5.78 4.42 ****** 1981 4.76 5.29 5.15 6.49 9.14 9.51 9.89 9.99 7.86 6.62 5.51 5.12 7.11 1982 4.81 4.22 5.74 ****** 7.15 10.62 9.06 9.57 8.73 7.44 4.78 3.74 ****** 1983 3.74 4.48 4.74 6.90 6.80 7.32 6.97 7.71 6.74 4.94 5.23 4.00 5.80 1984 3.65 3.80 6.13 5.68 ****** 5.94 4.96 6.52 5.44 4.59 5.31 3.38 ****** 1985 4.54 4.26 4.18 4.99 5.39 8.62 7.81 6.08 4.81 5.01 5.59 4.70 5.50 1986 3.63 4.71 4.86 7.12 6.47 6.34 6.67 6.87 6.65 6.06 5.28 4.37 5.75 1987 3.90 4.87 6.46 6.49 7.51 7.20 7.81 7.75 6.97 6.41 5.27 4.58 6.27 1988 3.69 4.45 5.62 7.18 6.86 7.03 10.02 9.35 8.47 6.92 ****** 4.66 ****** 1989 3.00 3.41 4.96 5.16 5.55 5.77 6.73 7.01 7.45 7.18 5.67 4.71 5.55 1990 4.30 4.88 5.49 6.36 7.27 7.49 10.04 9.79 7.72 6.23 5.27 4.47 6.61 1991 4.51 4.72 7.12 8.01 7.94 8.02 8.85 8.07 8.21 6.61 5.62 4.85 6.88 1992 3.89 4.37 4.99 6.90 8.14 9.25 8.99 8.89 7.73 6.70 5.65 4.31 6.65 1993 3.49 4.75 4.95 7.52 8.18 8.70 8.35 8.87 7.55 ****** 5.09 4.06 ****** 1994 4.30 3.91 6.18 5.70 7.51 8.44 7.89 8.30 6.53 5.76 6.57 4.01 6.26 1995 4.19 4.35 5.72 7.53 6.65 8.97 9.65 8.81 ****** 5.74 5.57 3.92 ****** 1996 3.60 4.74 5.78 6.76 7.21 7.51 8.80 7.58 7.75 6.67 4.48 4.18 6.25 1997 4.17 4.19 4.62 7.21 7.30 8.05 8.90 8.99 8.11 6.28 5.81 4.56 6.52 1998 3.85 4.37 5.26 7.14 6.98 7.58 8.34 8.63 8.20 6.76 5.71 4.23 6.42 1999 3.72 5.13 5.33 6.62 7.51 9.78 8.84 8.92 9.19 6.92 5.66 3.95 6.80 2000 3.77 4.06 5.10 6.45 7.21 7.45 7.21 7.35 7.89 5.79 4.07 4.17 5.88 2001 3.32 3.83 5.07 5.77 6.70 6.52 5.58 6.36 5.37 5.00 4.16 5.95 5.30 2002 4.12 4.12 4.28 7.10 6.54 6.10 6.52 6.33 4.82 5.38 4.58 3.99 5.32 2003 4.08 4.57 4.95 6.15 5.12 6.35 7.68 6.05 5.22 4.77 3.43 4.08 5.20 MEAN 4.00 4.43 5.44 6.77 7.43 8.45 9.04 8.75 7.60 6.33 5.28 4.40 6.49 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. ABSOLUTE OF MINIMUM TEMPERATURE WITH DAY YEAR JAN. DAY FEB. DAY MAR. DAY APR. DAY MAY DAY JUNE DAY JULY DAY AUG. DAY SEP. DAY OCT. DAY NOV. DAY DEC. DAY ANNUAL 1970 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 19.0 31 8.0 21 4.0 24 2.0 15 -5.5 17 ***** 1971 -10.0 27 -7.0 4 0.5 22 5.5 4 10.0 3 16.5 8 17.5 3 17.0 11 10.5 18 6.0 21 3.5 17 -3.0 24 -10.0 1972 -8.0 31 -17.0 5 0.0 4 6.5 3 9.5 11 16.5 4 17.5 18 10.5 28 7.5 20 8.0 21 1.5 24 -12.5 28 -17.0 1973 -12.0 27 -8.0 7 -4.5 10 4.5 15 12.0 2 18.5 3 18.0 28 16.5 9 9.5 27 2.0 1 -2.0 21 -8.0 15 -12.0 1974 -6.5 7 -12.0 4 -5.0 6 -26.0 30 11.0 12 18.0 4 18.5 13 14.5 20 10.5 30 3.5 14 -0.5 29 -5.5 4 -26.0 1975 -6.0 21 -6.0 15 -1.5 5 4.5 4 12.0 9 18.0 9 18.5 1 14.0 23 11.0 30 1.5 22 -3.0 16 -7.0 28 -7.0 1976 -4.5 10 -7.5 18 -3.0 4 0.0 3 10.0 12 16.5 16 19.5 29 14.0 21 13.5 15 4.5 20 -3.5 18 -4.0 8 -7.5 1977 -8.5 19 ***** ** 2.0 1 6.5 21 11.5 9 18.0 1 20.5 5 17.5 27 9.5 9 4.5 24 0.0 28 -3.0 26 ***** 1978 -8.5 15 -6.0 6 0.0 1 5.5 17 7.5 2 14.5 3 17.5 9 16.0 26 10.0 29 9.5 6 1.0 18 -3.5 25 -8.5 1979 -5.5 28 -4.5 19 -7.0 6 3.0 30 5.5 1 18.0 18 20.0 24 14.5 30 9.0 24 9.0 28 -2.0 19 -6.5 24 -7.0 1980 -5.0 10 -9.5 4 ***** ** 5.0 18 12.0 19 15.0 3 16.5 2 15.0 28 10.0 15 4.0 23 0.0 27 -2.0 14 ***** 1981 -3.0 10 -4.0 4 0.0 1 -0.5 3 8.5 4 15.0 11 18.5 29 16.5 29 8.5 25 4.0 31 0.0 26 -0.5 4 -4.0 1982 -6.0 22 -5.0 7 ***** ** ***** ** 7.5 13 15.0 1 17.0 10 13.0 26 12.5 16 2.5 27 -2.0 15 -7.0 10 ***** 1983 -8.0 15 -5.0 24 -2.0 1 6.0 1 10.5 1 17.0 3 18.5 3 17.5 26 12.0 24 3.0 23 0.5 27 -5.0 25 -8.0 1984 -4.0 23 -8.5 21 2.0 1 3.5 5 ***** ** 18.5 20 17.5 9 20.0 23 9.5 28 4.5 26 3.5 17 -9.5 22 ***** 1985 -7.0 1 -3.0 24 -5.5 12 6.5 9 12.0 1 16.5 13 19.0 10 14.5 31 12.0 13 4.5 23 2.0 25 -3.5 15 -7.0 1986 -5.0 25 -3.5 3 -2.5 17 4.0 1 11.0 20 17.5 3 17.0 23 15.0 29 12.5 10 8.0 19 -1.5 26 -6.5 12 -6.5 1987 -4.0 22 -1.5 8 5.5 20 1.5 1 10.5 2 15.5 23 18.5 14 19.5 10 15.5 21 2.5 30 -1.0 30 -5.0 2 -5.0 1988 -5.0 22 -6.5 7 0.5 25 2.5 4 13.5 6 18.5 6 20.5 28 17.0 28 11.5 30 9.5 5 ***** ** -6.5 31 ***** 1989 -6.5 8 -6.5 16 -0.5 1 4.5 1 5.0 2 17.5 8 19.5 26 18.0 1 11.0 24 8.5 15 0.0 23 -1.0 25 -6.5 1990 -4.5 13 -2.5 1 -3.5 22 4.0 24 14.5 2 16.5 1 19.5 11 19.0 14 12.5 26 6.5 23 1.0 19 -6.0 30 -6.0 1991 -5.0 1 -7.5 15 -2.0 13 5.0 14 9.0 8 14.5 26 19.5 23 13.0 24 7.5 28 5.5 15 2.0 24 -3.5 18 -7.5 1992 -8.5 31 -6.5 17 -5.0 13 5.0 6 8.0 3 16.0 2 16.5 19 15.5 26 11.5 2 2.5 18 -3.5 27 -6.0 29 -8.5 1993 -8.0 17 -4.5 18 -1.5 16 6.0 1 10.5 4 13.0 1 18.0 11 17.0 4 12.5 28 ***** ** -2.5 15 -3.0 9 ***** 1994 -6.0 11 -6.0 5 1.0 2 -1.0 5 12.0 8 16.0 7 17.5 15 17.5 30 7.0 22 5.5 11 3.5 18 -7.5 8 -7.5 1995 -3.5 9 -4.5 26 -2.5 7 5.0 1 12.0 24 15.0 1 21.0 22 17.0 9 ***** ** 3.0 21 -4.0 29 -3.0 12 ***** 1996 -7.0 17 -2.0 15 2.0 1 2.5 5 12.0 9 16.0 17 20.0 1 17.0 20 17.0 22 6.0 22 -6.0 18 -4.0 6 -7.0 1997 -3.0 21 -7.5 10 -3.0 9 4.0 1 10.0 6 18.0 29 19.0 12 18.5 15 14.5 15 8.5 29 1.0 26 -2.0 31 -7.5 1998 -3.5 10 -3.0 17 0.0 1 5.0 6 9.0 3 17.0 7 20.0 25 18.0 27 16.0 24 7.0 26 4.5 25 -1.0 20 -3.5 1999 -5.0 3 -1.0 1 1.5 19 5.0 12 12.0 6 19.0 18 19.0 14 18.0 23 10.0 30 8.5 27 2.0 15 -3.0 6 -5.0 2000 -8.0 13 -5.0 9 -2.5 4 7.0 1 15.0 14 14.0 14 17.0 20 2.1 8 13.4 27 8.0 25 -4.0 18 -5.0 14 -8.0 2001 -7.0 29 -7.0 24 0.5 20 9.5 19 15.0 2 15.0 24 16.5 31 17.0 1 12.5 21 7.5 28 -1.0 21 -2.0 24 -7.0 2002 -6.5 15 -5.0 3 0.0 11 5.5 6 12.0 1 18.0 9 19.0 5 14.0 15 12.0 30 11.0 21 -1.0 24 -11.0 5 -11.0 2003 -3.5 1 -2.0 13 -4.0 3 3.5 19 7.0 2 14.5 8 20.5 14 17.0 30 8.0 29 9.5 1 -3.0 24 -11.0 13 -11.0 LOW. -12.0 27 -17.0 5 -7.0 6 -26.0 30 5.0 2 13.0 1 16.5 2 2.1 8 7.0 22 1.5 22 -6.0 18 -12.5 28 -26.0 YEAR 1973 1972 1979 1974 1989 1993 1980 2000 1994 1975 1996 1972 1974 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. ABSOLUTE OF MAXIMUM TEMPERATURE WITH DAY YEAR JAN. DAY FEB. DAY MAR. DAY APR. DAY MAY DAY JUNE DAY JULY DAY AUG. DAY SEP. DAY OCT. DAY NOV. DAY DEC. DAY ANNUAL 1970 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 40.0 23 38.0 2 31.0 1 26.0 9 20.5 8 ***** 1971 17.0 5 22.5 23 30.0 15 29.5 17 41.0 28 41.0 8 40.0 10 38.0 7 38.5 2 30.0 8 25.0 4 19.5 1 41.0 1972 10.0 16 14.5 18 23.5 23 30.0 27 35.0 30 42.0 23 41.5 1 39.0 1 35.5 10 31.0 7 27.0 4 22.0 1 42.0 1973 15.5 31 21.5 19 26.5 22 34.0 28 37.0 18 42.5 15 44.0 11 40.0 1 37.0 1 31.5 11 26.0 2 16.5 9 44.0 1974 14.0 24 13.0 14 29.0 25 31.5 21 38.0 24 41.5 27 40.5 6 40.0 22 35.5 18 26.0 28 27.0 4 14.5 7 41.5 1975 17.0 5 20.0 22 25.0 24 30.0 14 36.0 30 39.5 27 41.0 4 41.0 16 38.0 10 30.5 5 24.0 27 20.0 23 41.0 1976 16.5 16 19.0 10 21.5 29 32.0 18 34.5 14 38.5 1 43.0 4 38.5 4 38.0 6 30.0 15 22.0 5 15.0 15 43.0 1977 7.5 1 ***** ** 29.9 21 33.5 14 33.0 25 42.5 21 42.5 11 42.0 18 36.5 1 33.5 5 22.5 13 21.0 5 ***** 1978 19.0 21 20.5 18 25.0 24 32.0 11 36.5 20 42.0 30 43.0 1 38.0 9 36.0 9 31.0 1 29.0 1 20.0 2 43.0 1979 15.5 24 19.5 8 25.0 26 36.0 23 33.0 28 40.0 20 43.0 8 38.5 1 37.5 10 35.5 11 28.0 4 17.5 4 43.0 1980 14.5 3 15.5 23 ***** ** 33.0 14 37.0 24 43.5 10 39.0 9 39.5 4 35.5 7 35.0 5 27.5 14 20.0 5 ***** 1981 18.0 25 20.5 9 27.0 29 33.0 26 37.5 28 38.5 19 41.5 5 38.0 19 36.5 17 30.0 13 27.0 13 19.0 7 41.5 1982 15.0 9 16.0 4 22.5 24 ***** ** 38.0 20 41.0 12 43.5 31 43.5 1 33.0 12 30.5 3 17.5 1 14.5 29 ***** 1983 14.0 3 20.0 21 22.0 5 32.0 23 34.5 14 41.5 21 44.0 28 41.5 4 38.0 1 29.5 1 26.5 1 20.0 8 44.0 1984 14.5 18 21.0 14 24.0 8 33.5 23 ***** ** 37.5 1 38.0 27 39.5 15 36.5 2 29.0 6 24.5 3 12.0 14 ***** 1985 15.5 10 25.5 27 28.0 24 34.0 24 35.0 22 41.0 22 42.0 27 36.5 1 35.0 7 34.0 1 21.0 9 21.5 19 42.0 1986 16.0 20 18.5 28 22.0 1 29.5 17 35.0 25 40.0 18 40.0 27 37.5 1 35.5 27 35.0 2 35.5 1 15.5 28 40.0 1987 20.5 27 23.0 28 24.5 3 35.0 19 37.5 27 40.0 5 40.5 8 38.5 25 38.5 6 32.0 3 28.5 7 24.0 24 40.5 1988 16.0 29 21.0 24 27.5 21 32.5 23 36.2 25 41.5 16 41.5 19 39.0 5 38.0 6 29.0 21 ***** ** 18.0 11 ***** 1989 10.0 19 13.5 22 24.0 15 31.0 19 38.0 27 40.0 27 43.0 8 37.5 4 38.5 14 33.0 9 26.5 1 22.5 1 43.0 1990 12.5 24 20.0 20 29.0 14 33.5 29 37.5 22 42.5 29 40.0 26 41.5 10 38.0 1 32.0 4 27.5 11 19.0 3 42.5 1991 14.0 31 18.0 1 21.0 19 31.5 25 38.0 30 39.0 12 40.0 10 41.0 7 39.0 9 27.0 27 25.5 1 21.0 10 41.0 1992 16.5 3 22.0 25 23.0 30 29.5 14 33.0 23 40.0 18 38.5 4 36.5 2 36.0 25 29.5 12 25.5 1 15.5 17 40.0 1993 18.0 29 18.0 12 23.0 8 32.5 20 35.0 20 41.5 22 39.0 5 37.0 22 37.5 14 ***** ** 25.5 1 15.5 20 ***** 1994 16.5 4 22.0 1 25.0 8 36.0 26 35.0 16 41.0 21 41.5 8 41.5 2 34.5 1 30.5 1 26.0 5 22.5 20 41.5 1995 16.0 17 21.0 5 25.0 26 30.0 5 35.0 6 40.5 16 42.5 15 41.0 23 ***** ** 35.5 6 27.0 4 13.5 3 ***** 1996 17.0 7 21.5 11 22.0 31 30.0 22 36.5 30 40.5 3 39.6 9 39.0 27 39.5 8 29.0 1 21.0 7 19.0 23 40.5 1997 17.5 9 21.0 23 25.0 24 29.5 30 36.5 28 40.0 16 41.5 6 39.5 1 35.5 27 35.5 5 23.0 5 15.5 8 41.5 1998 12.5 25 19.0 7 28.0 30 35.0 17 37.0 13 38.5 30 45.0 8 43.0 23 39.0 5 33.5 4 27.0 2 22.0 1 45.0 1999 13.5 15 25.0 27 24.0 12 28.5 14 38.0 20 43.0 29 43.0 8 38.5 30 38.0 15 32.5 12 25.0 2 16.5 19 43.0 2000 16.0 1 18.0 24 29.5 25 34.5 16 37.5 8 39.5 29 39.0 9 37.5 1 37.5 6 30.0 1 23.5 4 15.0 5 39.5 2001 17.0 15 20.0 21 28.5 26 34.0 26 39.5 17 41.5 29 41.5 14 40.5 27 38.0 8 33.0 1 26.0 7 20.0 29 41.5 2002 21.0 8 21.5 27 29.0 28 32.5 19 39.0 30 41.5 14 41.0 19 41.0 18 37.5 12 33.5 4 27.0 12 15.0 9 41.5 2003 17.5 7 21.0 26 27.5 21 34.5 28 34.0 17 40.0 24 43.5 31 43.0 1 36.5 19 35.0 4 26.0 1 20.5 20 43.5 HIG. 21.0 8 25.5 27 30.0 15 36.0 23 41.0 28 43.5 10 45.0 8 43.5 1 39.5 8 35.5 11 35.5 1 24.0 24 45.0 YEAR 2002 1985 1971 1979 1971 1980 1998 1982 1996 1979 1986 1987 1998 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. 24 HOUR MAXIMUM PRECIPITATION. YEAR JAN. DAY FEB. DAY MAR. DAY APR. DAY MAY DAY JUNE DAY JULY DAY AUG. DAY SEP. DAY OCT. DAY NOV. DAY DEC. DAY ANNUAL 1970 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 10.5 14 ***** 1971 0.0 ** 1.5 14 4.0 6 6.0 26 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 20.5 20 20.5 1972 25.0 31 0.0 ** 4.0 2 13.0 25 11.0 9 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.0 7 25.0 1973 0.0 ** 7.0 23 10.0 17 4.0 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 10 10.0 1974 7.0 25 8.0 19 6.5 2 9.0 12 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 10 0.0 ** 8.0 13 9.0 1975 12.0 25 0.0 ** 24.0 2 26.0 24 2.0 13 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 15 0.6 29 10.0 3 26.0 1976 10.0 23 8.0 23 18.0 21 6.0 22 2.0 12 2.0 8 1.0 22 0.0 ** 0.0 ** 0.0 ** 2.0 29 15.0 31 18.0 1977 14.0 17 ***** ** 3.0 31 22.5 1 14.0 24 0.0 ** 0.0 ** 0.0 ** 0.0 ** 12.0 26 4.0 1 16.0 23 ***** 1978 11.0 26 20.0 9 11.0 16 8.5 15 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 8.0 10 16.0 4 20.0 1979 16.0 12 2.0 9 5.0 23 6.0 29 15.0 9 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 12.0 28 16.0 1980 6.0 23 6.0 25 ***** ** 20.0 16 2.0 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 12 ***** 1981 10.0 13 16.0 12 5.0 15 10.0 18 15.0 1 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.0 17 4.0 22 4.0 31 16.0 1982 12.0 1 12.0 25 8.0 3 ***** ** 5.0 29 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.0 5 0.0 ** 9.0 15 ***** 1983 6.0 21 8.0 18 9.0 7 47.0 6 4.0 3 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.6 20 47.0 1984 5.0 17 5.0 29 29.0 24 0.0 ** ***** ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.0 16 5.0 7 ***** 1985 18.0 18 6.0 1 7.0 3 0.0 ** 3.0 17 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.0 14 15.0 21 18.0 1986 0.0 ** 20.0 16 21.0 16 21.0 12 2.0 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.0 23 15.0 20 21.0 1987 1.0 7 8.0 11 16.0 20 8.0 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 9.0 27 0.0 ** 5.0 29 16.0 1988 2.0 19 13.0 25 27.0 24 7.0 28 0.0 ** 0.0 ** 3.0 28 0.0 ** 0.0 ** 0.0 ** ***** ** 7.0 20 ***** 1989 4.0 3 10.0 23 8.0 19 0.0 ** 6.0 8 7.0 7 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 17 8.0 16 10.0 1990 9.5 1 13.0 11 2.5 26 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 18.0 22 18.0 1991 5.0 21 10.0 22 20.0 1 2.0 1 7.0 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.0 16 24.0 15 24.0 1992 5.0 18 0.0 ** 12.0 22 7.0 1 21.0 12 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 16 6.0 23 21.0 1993 5.0 5 13.0 5 13.5 9 6.0 28 5.0 8 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** ** 4.0 29 1.0 3 ***** 1994 12.0 25 3.0 25 14.0 13 3.0 19 12.0 7 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.0 18 9.0 4 14.0 1995 5.5 2 18.0 6 9.0 18 24.5 26 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** ** 0.0 ** 0.0 ** 9.5 26 ***** 1996 9.6 12 21.0 22 6.0 20 0.0 ** 7.0 21 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 21.0 1997 11.0 17 2.0 19 7.0 16 13.5 23 8.5 6 2.0 6 0.0 ** 0.0 ** 0.0 ** 8.5 24 14.0 14 10.0 18 14.0 1998 10.0 6 22.0 12 2.0 2 8.0 7 1.5 15 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 22.0 1999 6.5 25 11.0 6 21.0 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 21.0 2000 7.0 30 4.0 15 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.0 1 1.0 9 6.5 6 7.0 2001 0.0 ** 4.0 19 11.5 26 0.0 ** 1.0 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.0 24 11.0 14 11.5 2002 8.5 11 7.5 21 1.0 22 11.0 13 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.5 15 13.0 11 13.0 2003 25.0 24 3.0 6 33.0 13 4.0 23 1.0 30 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.0 6 33.0 HIG. 25.0 31 22.0 12 33.0 13 47.0 6 21.0 12 7.0 7 3.0 28 0.0 ** 0.0 ** 12.0 26 14.0 14 24.0 15 47.0 YEAR 1972 1998 2003 1983 1992 1989 1988 **** **** 1977 1997 1991 1983 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1970 ****** ****** ****** ****** ****** ****** ****** 0.0 0.0 0.0 0.0 14.5 ****** ***** ***** 0.0 100.0 1971 0.0 2.7 4.0 6.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23.0 35.7 18.8 16.8 0.0 64.4 1972 62.5 0.0 11.0 13.0 11.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 100.5 73.1 23.9 0.0 3.0 1973 0.0 14.0 20.0 7.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 42.0 81.0 16.7 0.0 2.4 1974 33.0 31.5 21.5 18.0 0.0 0.0 0.0 0.0 0.0 1.0 0.0 15.5 120.5 71.4 14.9 0.0 13.7 1975 21.0 0.0 27.0 48.5 2.0 0.0 0.0 0.0 0.0 1.0 1.0 17.5 118.0 40.7 42.8 0.0 16.5 1976 15.5 32.5 47.3 14.0 2.0 2.0 1.0 0.0 0.0 0.0 2.0 29.0 145.3 65.6 12.4 0.7 21.3 1977 40.0 ****** 5.0 41.5 16.0 0.0 0.0 0.0 0.0 21.0 4.0 19.0 ****** 30.7 39.2 0.0 30.0 1978 27.0 41.0 23.0 8.5 0.0 0.0 0.0 0.0 0.0 0.0 11.0 35.0 145.5 62.5 5.8 0.0 31.6 1979 43.0 2.0 20.0 6.0 22.0 0.0 0.0 0.0 0.0 0.0 0.0 60.0 153.0 42.5 18.3 0.0 39.2 1980 19.0 19.0 ****** 33.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 15.0 ****** 43.2 39.8 0.0 17.0 1981 22.0 36.5 11.0 16.0 21.0 0.0 0.0 0.0 0.0 9.0 4.0 7.0 126.5 54.9 29.2 0.0 15.8 1982 35.0 44.6 35.0 ****** 8.0 0.0 0.0 0.0 0.0 2.0 0.0 28.0 ****** 75.1 5.2 0.0 19.7 1983 21.0 13.0 18.0 124.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 1.6 181.6 28.6 70.5 0.0 0.9 1984 11.0 11.0 51.0 0.0 ****** 0.0 0.0 0.0 0.0 0.0 6.0 6.8 ****** 85.1 0.0 0.0 14.9 1985 28.0 6.0 12.0 0.0 3.0 0.0 0.0 0.0 0.0 0.0 4.0 37.0 90.0 51.1 3.3 0.0 45.6 1986 0.0 70.0 59.0 42.0 2.0 0.0 0.0 0.0 0.0 0.0 7.0 45.0 225.0 57.3 19.6 0.0 23.1 1987 1.0 14.0 40.0 15.0 0.0 0.0 0.0 0.0 0.0 9.0 0.0 6.0 85.0 64.7 17.6 0.0 17.6 1988 2.0 39.0 63.0 9.0 0.0 0.0 3.0 0.0 0.0 0.0 ****** 9.0 ****** 83.2 7.2 2.4 7.2 1989 7.8 18.3 10.0 0.0 6.0 7.0 0.0 0.0 0.0 0.0 4.0 11.0 64.1 56.3 20.3 0.0 23.4 1990 40.0 49.0 2.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25.0 116.5 78.5 0.0 0.0 21.5 1991 19.0 34.6 68.5 4.0 9.0 0.0 0.0 0.0 0.0 0.0 6.0 48.0 189.1 64.6 6.9 0.0 28.6 1992 15.1 0.0 18.0 28.0 57.0 0.0 0.0 0.0 0.0 0.0 1.0 18.0 137.1 24.1 62.0 0.0 13.9 1993 8.0 41.0 25.5 15.0 6.0 0.0 0.0 0.0 0.0 ****** 7.0 1.0 ****** 72.0 20.3 0.0 7.7 1994 14.0 3.0 42.0 3.0 18.0 0.0 0.0 0.0 0.0 0.0 10.0 13.0 103.0 57.3 20.4 0.0 22.3 1995 5.5 20.0 18.0 46.5 0.0 0.0 0.0 0.0 ****** 0.0 0.0 23.5 ****** 38.3 41.0 0.0 20.7 1996 14.2 42.5 31.5 0.0 7.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 95.2 92.6 7.4 0.0 0.0 1997 13.5 2.0 11.0 29.0 8.5 2.0 0.0 0.0 0.0 8.5 20.0 24.0 118.5 22.4 33.3 0.0 44.3 1998 19.0 34.0 6.0 15.0 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 75.5 78.1 21.9 0.0 0.0 1999 29.5 30.0 67.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 126.5 100.0 0.0 0.0 0.0 2000 14.0 12.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.0 1.0 28.0 59.0 44.1 0.0 0.0 55.9 2001 0.0 5.0 13.5 0.0 1.5 0.0 0.0 0.0 0.0 0.0 3.5 23.5 47.0 39.4 3.2 0.0 57.4 2002 22.5 16.0 1.5 14.5 0.0 0.0 0.0 0.0 0.0 0.0 3.0 23.0 80.5 49.7 18.0 0.0 32.3 2003 39.0 7.5 44.0 7.5 2.0 0.0 0.0 0.0 0.0 0.0 0.0 18.0 118.0 76.7 8.1 0.0 15.3 MEAN 19.5 21.6 25.8 17.6 6.5 0.3 0.1 0.0 0.0 1.7 2.9 18.5 114.5 58.5 21.4 0.1 20.0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 0 0 0 0 3 *** 1971 0 3 1 1 0 0 0 0 0 0 0 2 7 1972 5 0 4 1 1 0 0 0 0 0 0 2 13 1973 0 4 3 2 0 0 0 0 0 0 0 1 10 1974 6 5 6 4 0 0 0 0 0 1 0 5 27 1975 5 0 2 3 1 0 0 0 0 1 2 5 19 1976 3 7 8 3 1 1 1 0 0 0 1 6 31 1977 7 *** 2 3 2 0 0 0 0 3 1 2 *** 1978 5 5 3 1 0 0 0 0 0 0 3 5 22 1979 4 1 6 1 3 0 0 0 0 0 0 8 23 1980 4 6 *** 4 1 0 0 0 0 0 0 4 *** 1981 4 4 3 2 2 0 0 0 0 2 1 2 20 1982 4 7 7 *** 3 0 0 0 0 1 0 5 *** 1983 6 2 3 8 1 0 0 0 0 0 0 1 21 1984 3 3 6 0 *** 0 0 0 0 0 1 2 *** 1985 4 1 4 0 1 0 0 0 0 0 2 4 16 1986 0 9 5 8 1 0 0 0 0 0 1 5 29 1987 1 2 4 3 0 0 0 0 0 1 0 2 13 1988 1 7 7 2 0 0 1 0 0 0 *** 2 *** 1989 3 5 2 0 1 1 0 0 0 0 1 3 16 1990 9 6 1 0 0 0 0 0 0 0 0 3 19 1991 6 5 8 2 2 0 0 0 0 0 1 8 32 1992 6 0 3 6 5 0 0 0 0 0 1 5 26 1993 2 8 3 3 2 0 0 0 0 *** 3 1 *** 1994 3 1 6 1 3 0 0 0 0 0 2 2 18 1995 1 2 3 5 0 0 0 0 *** 0 0 5 *** 1996 3 5 8 0 1 0 0 0 0 0 0 0 17 1997 2 1 3 4 1 1 0 0 0 1 3 5 21 1998 5 3 3 3 1 0 0 0 0 0 0 0 15 1999 8 6 9 0 0 0 0 0 0 0 0 0 23 2000 3 4 0 0 0 0 0 0 0 2 1 7 17 2001 0 2 2 0 2 0 0 0 0 0 3 7 16 2002 5 4 2 4 0 0 0 0 0 0 3 5 23 2003 5 6 5 4 3 0 0 0 0 0 0 4 27 MEAN 4 4 4 2 1 0 0 0 0 0 1 4 20 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. NO. OF DAYS PRECIPITATION EQUAL OR MORE THAN 1 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 0 0 0 0 3 *** 1971 0 2 1 1 0 0 0 0 0 0 0 2 6 1972 5 0 4 1 1 0 0 0 0 0 0 2 13 1973 0 4 3 2 0 0 0 0 0 0 0 1 10 1974 6 5 6 4 0 0 0 0 0 1 0 5 27 1975 5 0 2 3 1 0 0 0 0 1 0 5 17 1976 3 7 8 3 1 1 1 0 0 0 1 6 31 1977 7 *** 2 3 2 0 0 0 0 3 1 2 *** 1978 5 5 3 1 0 0 0 0 0 0 3 5 22 1979 4 1 6 1 3 0 0 0 0 0 0 8 23 1980 4 6 *** 4 1 0 0 0 0 0 0 4 *** 1981 4 4 3 2 2 0 0 0 0 2 1 2 20 1982 4 7 7 *** 3 0 0 0 0 1 0 5 *** 1983 6 2 3 8 1 0 0 0 0 0 0 1 21 1984 3 3 6 0 *** 0 0 0 0 0 1 2 *** 1985 4 1 4 0 1 0 0 0 0 0 2 4 16 1986 0 9 5 8 1 0 0 0 0 0 1 5 29 1987 1 2 4 3 0 0 0 0 0 1 0 2 13 1988 1 7 7 2 0 0 1 0 0 0 *** 2 *** 1989 3 5 2 0 1 1 0 0 0 0 1 3 16 1990 9 6 1 0 0 0 0 0 0 0 0 3 19 1991 6 5 8 2 2 0 0 0 0 0 1 8 32 1992 6 0 3 6 5 0 0 0 0 0 1 5 26 1993 2 8 3 3 2 0 0 0 0 *** 3 1 *** 1994 3 1 6 1 3 0 0 0 0 0 2 2 18 1995 1 2 3 5 0 0 0 0 *** 0 0 5 *** 1996 3 5 8 0 1 0 0 0 0 0 0 0 17 1997 2 1 3 4 1 1 0 0 0 1 3 5 21 1998 5 3 3 3 1 0 0 0 0 0 0 0 15 1999 8 6 9 0 0 0 0 0 0 0 0 0 23 2000 3 4 0 0 0 0 0 0 0 2 1 7 17 2001 0 2 2 0 1 0 0 0 0 0 2 6 13 2002 5 4 1 3 0 0 0 0 0 0 2 4 19 2003 5 3 4 4 1 0 0 0 0 0 0 4 21 MEAN 4 4 4 2 1 0 0 0 0 0 1 4 20 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. NO. OF DAYS PRECIPITATION EQUAL OR MORE THAN 10 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 0 0 0 0 1 *** 1971 0 0 0 0 0 0 0 0 0 0 0 1 1 1972 2 0 0 1 1 0 0 0 0 0 0 0 4 1973 0 0 1 0 0 0 0 0 0 0 0 0 1 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 1 0 1 2 0 0 0 0 0 0 0 1 5 1976 1 0 1 0 0 0 0 0 0 0 0 1 3 1977 1 *** 0 2 1 0 0 0 0 1 0 1 *** 1978 1 2 2 0 0 0 0 0 0 0 0 1 6 1979 2 0 0 0 1 0 0 0 0 0 0 3 6 1980 0 0 *** 1 0 0 0 0 0 0 0 0 *** 1981 1 1 0 1 1 0 0 0 0 0 0 0 4 1982 1 2 0 *** 0 0 0 0 0 0 0 0 *** 1983 0 0 0 3 0 0 0 0 0 0 0 0 3 1984 0 0 2 0 *** 0 0 0 0 0 0 0 *** 1985 1 0 0 0 0 0 0 0 0 0 0 1 2 1986 0 3 3 1 0 0 0 0 0 0 0 3 10 1987 0 0 2 0 0 0 0 0 0 0 0 0 2 1988 0 1 2 0 0 0 0 0 0 0 *** 0 *** 1989 0 1 0 0 0 0 0 0 0 0 0 0 1 1990 0 1 0 0 0 0 0 0 0 0 0 1 2 1991 0 2 3 0 0 0 0 0 0 0 0 1 6 1992 0 0 1 0 3 0 0 0 0 0 0 0 4 1993 0 1 2 0 0 0 0 0 0 *** 0 0 *** 1994 1 0 2 0 1 0 0 0 0 0 0 0 4 1995 0 1 0 2 0 0 0 0 *** 0 0 0 *** 1996 0 1 0 0 0 0 0 0 0 0 0 0 1 1997 1 0 0 1 0 0 0 0 0 0 1 1 4 1998 1 2 0 0 0 0 0 0 0 0 0 0 3 1999 0 2 3 0 0 0 0 0 0 0 0 0 5 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 1 0 0 0 0 0 0 0 0 1 2 2002 0 0 0 1 0 0 0 0 0 0 0 1 2 2003 1 0 1 0 0 0 0 0 0 0 0 0 2 MEAN 0 1 1 0 0 0 0 0 0 0 0 1 3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 20 26 37 60 68 *** 1971 73 61 49 50 34 24 26 23 19 24 59 67 42 1972 79 75 69 47 43 34 31 41 37 39 49 75 52 1973 75 64 58 47 41 40 51 52 47 46 55 64 53 1974 75 81 68 54 34 38 41 51 44 48 59 70 55 1975 72 69 56 64 52 37 33 43 48 51 60 85 56 1976 82 72 70 61 51 37 38 42 43 53 56 71 56 1977 78 *** 54 60 54 34 35 43 50 55 61 62 *** 1978 67 71 56 37 36 32 28 27 34 38 67 70 47 1979 72 66 62 50 51 38 29 35 47 51 58 75 53 1980 73 69 *** 48 36 26 35 38 38 48 56 63 *** 1981 68 68 53 46 48 37 35 40 35 52 51 61 50 1982 73 68 70 *** 38 36 31 35 41 54 59 69 *** 1983 72 64 58 64 36 27 21 28 28 39 46 61 45 1984 61 66 62 39 *** 26 22 25 29 36 54 64 *** 1985 72 52 54 36 28 28 29 30 24 38 58 71 43 1986 63 82 68 60 36 29 29 29 33 35 56 73 49 1987 58 62 60 46 34 27 30 31 33 49 45 62 45 1988 62 67 60 51 38 26 33 33 37 44 *** 65 *** 1989 63 67 52 36 35 22 24 31 33 41 55 56 43 1990 79 76 57 41 31 24 30 30 30 39 47 66 46 1991 74 73 73 53 42 31 30 28 36 48 56 70 51 1992 66 59 60 52 50 33 32 33 38 44 48 66 48 1993 64 68 58 48 39 33 31 35 34 *** 52 55 *** 1994 59 55 58 38 35 32 29 31 34 41 50 52 43 1995 57 59 53 50 33 31 28 32 *** 37 45 65 *** 1996 63 61 64 47 35 28 29 30 30 39 47 54 44 1997 57 54 53 48 38 29 28 29 35 36 59 62 44 1998 61 58 50 40 34 30 26 28 31 41 44 43 41 1999 55 51 56 43 33 29 28 31 34 38 51 49 42 2000 53 53 44 32 28 26 24 27 34 39 48 63 39 2001 57 56 52 34 28 23 23 27 29 39 50 81 42 2002 67 62 43 56 36 24 27 26 25 37 55 79 45 2003 73 70 58 51 37 28 28 28 30 33 47 71 46 MEAN 67 65 58 48 38 30 30 33 35 42 53 66 47 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 5 11 19 25 45 *** 1971 59 37 29 28 25 16 18 15 12 14 38 43 28 1972 71 71 47 31 27 24 23 27 25 22 34 64 39 1973 55 44 43 33 24 25 36 38 35 27 34 48 37 1974 61 68 52 36 22 23 31 40 34 36 46 60 42 1975 63 52 42 47 38 30 28 33 35 37 48 64 43 1976 60 60 58 48 36 31 31 33 30 41 41 62 44 1977 73 *** 37 45 40 27 28 35 37 45 38 44 *** 1978 58 58 40 21 24 22 19 17 23 25 49 55 34 1979 59 50 45 36 33 25 21 27 33 34 41 61 39 1980 62 62 *** 33 24 20 26 29 27 37 43 47 *** 1981 56 53 37 27 30 25 24 26 25 37 38 48 36 1982 59 59 50 *** 23 26 21 24 29 39 48 61 *** 1983 62 52 43 43 22 18 15 18 20 26 33 50 34 1984 49 55 43 26 *** 15 12 14 19 25 39 52 *** 1985 59 34 35 21 18 20 17 18 15 25 39 57 30 1986 42 67 51 39 21 16 16 19 20 25 41 60 35 1987 35 41 42 32 23 18 18 18 20 37 31 44 30 1988 47 55 44 31 20 17 22 24 24 29 *** 45 *** 1989 50 52 38 25 21 13 16 18 22 28 40 50 31 1990 70 64 39 28 20 17 24 23 21 27 31 49 34 1991 66 56 63 39 30 19 20 20 26 32 41 55 39 1992 59 51 48 41 40 24 20 25 26 33 33 54 38 1993 56 57 49 39 29 23 20 22 22 *** 36 42 *** 1994 47 38 44 26 23 19 17 20 24 30 40 46 31 1995 47 47 42 40 23 22 19 21 *** 27 33 56 *** 1996 53 52 53 32 23 19 21 19 20 29 37 39 33 1997 42 40 35 36 26 19 19 20 24 27 51 55 33 1998 54 50 40 29 24 20 19 21 22 27 31 33 31 1999 49 41 45 32 24 20 21 22 26 28 43 39 33 2000 45 45 35 25 19 18 18 17 23 28 39 54 31 2001 49 45 41 22 19 17 14 16 17 25 31 64 30 2002 50 37 26 37 21 15 17 15 14 22 33 57 29 2003 50 45 37 29 18 17 17 16 17 19 27 57 29 MEAN 55 51 43 33 25 21 21 22 24 29 38 52 35 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 10 14 30 49 59 *** 1971 69 41 34 29 24 16 17 17 18 21 45 55 32 1972 76 78 62 38 36 29 26 30 32 37 45 71 47 1973 63 50 52 39 28 31 44 44 42 40 47 64 45 1974 69 79 62 46 29 30 36 49 41 44 57 68 51 1975 69 61 48 57 43 35 31 36 40 47 57 75 50 1976 75 69 67 56 43 35 34 37 36 49 54 69 52 1977 80 *** 43 54 48 31 32 40 45 53 51 59 *** 1978 69 68 51 30 31 26 20 23 29 33 60 64 42 1979 68 58 57 45 43 32 26 31 42 49 54 71 48 1980 67 68 *** 44 28 23 30 32 34 45 50 57 *** 1981 66 62 43 37 39 31 28 31 31 45 47 58 43 1982 72 69 60 *** 28 30 25 28 38 46 58 66 *** 1983 69 60 52 52 27 21 17 21 28 31 40 56 40 1984 57 62 52 32 *** 18 14 17 23 33 47 58 *** 1985 68 43 43 28 23 24 20 22 19 33 50 67 37 1986 55 70 63 46 28 19 19 24 28 33 53 68 42 1987 51 58 54 41 30 23 24 22 26 48 42 59 40 1988 56 63 52 39 27 20 25 28 30 39 *** 56 *** 1989 57 58 46 29 26 17 18 23 29 39 49 55 37 1990 74 69 50 37 26 21 29 28 27 35 41 60 41 1991 72 66 71 47 37 24 25 25 32 41 50 59 46 1992 65 55 56 46 48 29 26 31 34 41 42 59 44 1993 63 62 55 47 37 28 26 29 29 *** 46 53 *** 1994 55 47 51 33 31 25 22 23 30 37 48 53 38 1995 53 53 49 47 29 28 22 25 *** 29 41 61 *** 1996 60 58 57 40 29 23 25 23 24 37 43 46 39 1997 50 50 42 44 31 22 22 24 29 31 56 58 38 1998 56 57 45 35 28 25 22 25 26 34 38 38 36 1999 53 49 50 38 28 25 25 26 32 33 50 45 38 2000 52 48 41 28 23 22 22 21 27 34 43 57 35 2001 55 51 45 27 22 17 14 18 21 30 40 75 35 2002 61 47 34 42 25 17 18 17 18 29 46 70 35 2003 63 58 47 35 23 18 17 18 22 26 39 66 36 MEAN 63 59 51 40 31 25 24 26 30 37 48 60 41 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. NO. OF DAYS MINIMUM TEMPERATURE EQUAL OR LESS THAN -4 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 0 0 0 0 9 *** 1971 11 4 0 0 0 0 0 0 0 0 0 0 15 1972 19 22 0 0 0 0 0 0 0 0 0 11 52 1973 25 5 2 0 0 0 0 0 0 0 0 15 47 1974 14 11 1 1 0 0 0 0 0 0 0 3 30 1975 4 3 0 0 0 0 0 0 0 0 0 2 9 1976 3 7 0 0 0 0 0 0 0 0 0 3 13 1977 15 *** 0 0 0 0 0 0 0 0 0 0 *** 1978 7 1 0 0 0 0 0 0 0 0 0 0 8 1979 3 1 4 0 0 0 0 0 0 0 0 4 12 1980 4 6 *** 0 0 0 0 0 0 0 0 0 *** 1981 0 2 0 0 0 0 0 0 0 0 0 0 2 1982 5 3 *** *** 0 0 0 0 0 0 0 10 *** 1983 10 3 0 0 0 0 0 0 0 0 0 6 19 1984 3 9 0 0 *** 0 0 0 0 0 0 8 *** 1985 5 0 3 0 0 0 0 0 0 0 0 0 8 1986 6 0 0 0 0 0 0 0 0 0 0 6 12 1987 1 0 0 0 0 0 0 0 0 0 0 3 4 1988 2 2 0 0 0 0 0 0 0 0 *** 2 *** 1989 19 12 0 0 0 0 0 0 0 0 0 0 31 1990 5 0 0 0 0 0 0 0 0 0 0 4 9 1991 4 4 0 0 0 0 0 0 0 0 0 0 8 1992 10 4 4 0 0 0 0 0 0 0 0 2 20 1993 17 1 0 0 0 0 0 0 0 *** 0 0 *** 1994 4 5 0 0 0 0 0 0 0 0 0 9 18 1995 0 1 0 0 0 0 0 0 *** 0 1 0 *** 1996 6 0 0 0 0 0 0 0 0 0 2 1 9 1997 0 11 0 0 0 0 0 0 0 0 0 0 11 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 4 0 0 0 0 0 0 0 0 0 0 0 4 2000 4 2 0 0 0 0 0 0 0 0 1 1 8 2001 5 2 0 0 0 0 0 0 0 0 0 0 7 2002 5 1 0 0 0 0 0 0 0 0 0 4 10 2003 0 0 1 0 0 0 0 0 0 0 0 6 7 MEAN 7 4 0 0 0 0 0 0 0 0 0 3 14 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. NO. OF DAYS MINIMUM TEMPERATURE EQUAL OR MORE THAN 21 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 12 1 0 0 0 *** 1971 0 0 0 1 12 23 22 16 3 0 0 0 77 1972 0 0 0 0 1 15 16 8 0 0 0 0 40 1973 0 0 0 2 1 21 27 15 1 0 0 0 67 1974 0 0 0 0 5 16 25 9 3 0 0 0 58 1975 0 0 0 0 2 17 27 17 0 0 0 0 63 1976 0 0 0 0 0 6 26 7 1 0 0 0 40 1977 0 *** 0 0 0 22 30 9 0 0 0 0 *** 1978 0 0 0 0 4 16 24 8 2 0 0 0 54 1979 0 0 0 0 0 14 24 8 3 0 0 0 49 1980 0 0 *** 0 2 15 15 8 0 0 0 0 *** 1981 0 0 0 0 2 15 22 10 2 0 0 0 51 1982 0 0 *** *** 2 17 19 13 0 0 0 0 *** 1983 0 0 0 0 2 23 27 21 9 0 0 0 82 1984 0 0 0 0 *** 18 27 29 2 0 0 0 *** 1985 0 0 0 0 1 21 29 9 0 0 0 0 60 1986 0 0 0 0 5 16 22 10 2 0 0 0 55 1987 0 0 0 0 4 12 28 29 6 0 0 0 79 1988 0 0 0 0 2 20 29 21 10 0 *** 0 *** 1989 0 0 0 0 4 22 27 19 2 0 0 0 74 1990 0 0 0 0 2 26 28 25 3 0 0 0 84 1991 0 0 0 0 0 16 26 9 0 0 0 0 51 1992 0 0 0 0 0 15 14 8 0 0 0 0 37 1993 0 0 0 0 0 10 12 9 1 *** 0 0 *** 1994 0 0 0 0 1 21 25 16 0 0 0 0 63 1995 0 0 0 0 1 18 31 20 *** 0 0 0 *** 1996 0 0 0 0 5 21 25 19 15 0 0 0 85 1997 0 0 0 0 3 27 29 17 0 0 0 0 76 1998 0 0 0 0 6 13 28 25 11 0 0 0 83 1999 0 0 0 0 3 22 24 21 4 0 0 0 74 2000 0 0 0 1 11 17 23 15 5 0 0 0 72 2001 0 0 0 1 10 21 28 23 9 0 0 0 92 2002 0 0 0 0 3 18 24 25 8 0 0 0 78 2003 0 0 0 0 1 20 30 20 3 0 0 0 74 MEAN 0 0 0 0 3 18 25 16 3 0 0 0 65 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR LESS THAN 0 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 0 0 0 0 0 *** 1971 0 0 0 0 0 0 0 0 0 0 0 0 0 1972 1 8 0 0 0 0 0 0 0 0 0 4 13 1973 0 0 0 0 0 0 0 0 0 0 0 0 0 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 0 0 0 0 0 0 0 0 1976 0 1 0 0 0 0 0 0 0 0 0 0 1 1977 2 *** 0 0 0 0 0 0 0 0 0 0 *** 1978 2 0 0 0 0 0 0 0 0 0 0 0 2 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 0 0 *** 0 0 0 0 0 0 0 0 0 *** 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 0 0 0 *** 0 0 0 0 0 0 0 1 *** 1983 1 0 0 0 0 0 0 0 0 0 0 2 3 1984 0 0 0 0 *** 0 0 0 0 0 0 0 *** 1985 0 0 0 0 0 0 0 0 0 0 0 0 0 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 *** 0 *** 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 1 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 0 0 0 0 0 0 0 0 *** 0 0 0 *** 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 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 1 0 0 0 0 0 0 0 0 0 0 0 1 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 2 2 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR MORE THAN 30 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 15 20 7 0 0 *** 1971 0 0 1 0 23 30 31 31 10 1 0 0 127 1972 0 0 0 3 10 30 31 24 18 2 0 0 118 1973 0 0 0 6 20 30 31 31 22 5 0 0 145 1974 0 0 0 7 24 30 31 30 22 0 0 0 144 1975 0 0 0 2 14 30 31 28 20 3 0 0 128 1976 0 0 0 4 17 30 31 31 25 2 0 0 140 1977 0 *** 0 5 9 30 31 30 24 7 0 0 *** 1978 0 0 0 7 25 30 31 31 26 2 0 0 152 1979 0 0 0 18 12 29 31 27 20 12 0 0 149 1980 0 0 *** 10 25 30 31 31 25 6 0 0 *** 1981 0 0 0 10 20 26 31 31 21 1 0 0 140 1982 0 0 0 *** 22 30 31 31 16 2 0 0 *** 1983 0 0 0 3 25 29 31 31 20 0 0 0 139 1984 0 0 0 8 *** 30 31 31 18 0 0 0 *** 1985 0 0 0 5 17 30 31 28 27 3 0 0 141 1986 0 0 0 0 19 29 29 30 20 8 1 0 136 1987 0 0 0 10 22 30 30 31 24 7 0 0 154 1988 0 0 0 8 22 30 30 30 20 0 *** 0 *** 1989 0 0 0 1 14 30 31 31 23 9 0 0 139 1990 0 0 0 3 24 29 31 31 27 5 0 0 150 1991 0 0 0 4 12 29 31 31 20 0 0 0 127 1992 0 0 0 0 7 29 31 30 15 0 0 0 112 1993 0 0 0 4 17 30 31 31 23 *** 0 0 *** 1994 0 0 0 5 19 30 30 31 7 1 0 0 123 1995 0 0 0 1 8 29 31 31 *** 9 0 0 *** 1996 0 0 0 4 15 27 30 30 30 0 0 0 136 1997 0 0 0 0 11 29 30 30 26 10 0 0 136 1998 0 0 0 11 19 27 31 29 30 8 0 0 155 1999 0 0 0 0 22 29 31 31 25 8 0 0 146 2000 0 0 0 16 31 29 31 31 29 2 0 0 169 2001 0 0 0 9 29 30 31 31 24 6 0 0 160 2002 0 0 0 6 24 30 31 31 27 12 0 0 161 2003 0 0 0 9 13 29 31 31 21 10 0 0 144 MEAN 0 0 0 6 18 29 31 30 22 4 0 0 140 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR MORE THAN 40 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 5 0 0 0 0 *** 1971 0 0 0 0 1 5 2 0 0 0 0 0 8 1972 0 0 0 0 0 3 4 0 0 0 0 0 7 1973 0 0 0 0 0 3 7 1 0 0 0 0 11 1974 0 0 0 0 0 2 2 1 0 0 0 0 5 1975 0 0 0 0 0 0 5 2 0 0 0 0 7 1976 0 0 0 0 0 0 14 0 0 0 0 0 14 1977 0 *** 0 0 0 9 11 2 0 0 0 0 *** 1978 0 0 0 0 0 5 3 0 0 0 0 0 8 1979 0 0 0 0 0 1 3 0 0 0 0 0 4 1980 0 0 *** 0 0 7 0 0 0 0 0 0 *** 1981 0 0 0 0 0 0 2 0 0 0 0 0 2 1982 0 0 0 *** 0 2 6 9 0 0 0 0 *** 1983 0 0 0 0 0 10 13 7 0 0 0 0 30 1984 0 0 0 0 *** 0 0 0 0 0 0 0 *** 1985 0 0 0 0 0 5 3 0 0 0 0 0 8 1986 0 0 0 0 0 1 1 0 0 0 0 0 2 1987 0 0 0 0 0 1 2 0 0 0 0 0 3 1988 0 0 0 0 0 6 13 0 0 0 *** 0 *** 1989 0 0 0 0 0 1 4 0 0 0 0 0 5 1990 0 0 0 0 0 7 2 4 0 0 0 0 13 1991 0 0 0 0 0 0 1 1 0 0 0 0 2 1992 0 0 0 0 0 1 0 0 0 0 0 0 1 1993 0 0 0 0 0 4 0 0 0 *** 0 0 *** 1994 0 0 0 0 0 6 4 5 0 0 0 0 15 1995 0 0 0 0 0 5 18 2 *** 0 0 0 *** 1996 0 0 0 0 0 4 0 0 0 0 0 0 4 1997 0 0 0 0 0 2 14 0 0 0 0 0 16 1998 0 0 0 0 0 0 7 2 0 0 0 0 9 1999 0 0 0 0 0 8 7 0 0 0 0 0 15 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 0 0 0 6 9 2 0 0 0 0 17 2002 0 0 0 0 0 6 1 4 0 0 0 0 11 2003 0 0 0 0 0 1 19 2 0 0 0 0 22 MEAN 0 0 0 0 0 3 5 1 0 0 0 0 9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR MORE THAN 45 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 0 0 0 0 0 *** 1971 0 0 0 0 0 0 0 0 0 0 0 0 0 1972 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 0 0 0 0 0 0 0 0 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 0 0 0 0 0 0 0 0 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 0 *** 0 0 0 0 0 0 0 0 0 0 *** 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 0 0 *** 0 0 0 0 0 0 0 0 0 *** 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 0 0 0 *** 0 0 0 0 0 0 0 0 *** 1983 0 0 0 0 0 0 0 0 0 0 0 0 0 1984 0 0 0 0 *** 0 0 0 0 0 0 0 *** 1985 0 0 0 0 0 0 0 0 0 0 0 0 0 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 *** 0 *** 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 0 0 0 0 0 *** 0 0 *** 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 *** 0 0 0 *** 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 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 2001 0 0 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 ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. NO. OF FREEZING DAYS , DATE OF START AND END FREEZING START END YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MO DAY MO DAY -------------- 1970 *** *** *** *** *** *** *** 0 0 0 0 17 *** 12 2 12 31 1971 23 11 0 0 0 0 0 0 0 0 0 12 46 12 13 2 26 1972 29 26 2 0 0 0 0 0 0 0 0 16 73 12 5 3 8 1973 30 6 3 0 0 0 0 0 0 0 2 22 63 11 11 3 12 1974 31 18 5 1 0 0 0 0 0 0 2 20 77 11 29 4 30 1975 23 17 2 0 0 0 0 0 0 0 3 14 59 11 8 3 6 1976 16 18 10 2 0 0 0 0 0 0 6 19 71 11 16 4 4 1977 30 *** 0 0 0 0 0 0 0 0 1 9 *** 11 28 1 31 1978 24 13 1 0 0 0 0 0 0 0 0 11 49 12 19 3 1 1979 21 11 8 0 0 0 0 0 0 0 10 18 68 11 17 3 9 1980 26 17 *** 0 0 0 0 0 0 0 1 9 *** 11 27 2 29 1981 17 9 1 1 0 0 0 0 0 0 1 1 30 11 26 4 3 1982 16 10 *** *** 0 0 0 0 0 0 8 22 *** 11 15 2 21 1983 23 14 6 0 0 0 0 0 0 0 0 16 59 12 15 3 21 1984 21 15 0 0 *** 0 0 0 0 0 0 27 *** 12 1 2 28 1985 20 4 9 0 0 0 0 0 0 0 0 15 48 12 6 3 12 1986 15 11 6 0 0 0 0 0 0 0 4 14 50 11 17 3 20 1987 20 8 0 0 0 0 0 0 0 0 1 10 39 11 30 2 23 1988 21 12 0 0 0 0 0 0 0 0 *** 8 *** 12 22 2 28 1989 31 24 1 0 0 0 0 0 0 0 1 13 70 11 23 3 1 1990 21 13 3 0 0 0 0 0 0 0 0 16 53 12 14 3 23 1991 20 18 4 0 0 0 0 0 0 0 0 13 55 12 18 3 14 1992 24 19 14 0 0 0 0 0 0 0 4 8 69 11 27 3 27 1993 26 9 4 0 0 0 0 0 0 *** 9 15 *** 11 15 3 22 1994 17 15 0 1 0 0 0 0 0 0 0 19 52 12 6 4 5 1995 18 9 9 0 0 0 0 0 *** 0 5 13 *** 11 26 3 9 1996 22 6 0 0 0 0 0 0 0 0 9 12 49 11 13 2 27 1997 10 16 4 0 0 0 0 0 0 0 0 10 40 12 20 3 21 1998 19 16 1 0 0 0 0 0 0 0 0 1 37 12 20 3 1 1999 18 2 0 0 0 0 0 0 0 0 0 6 26 12 4 2 3 2000 15 16 6 0 0 0 0 0 0 0 6 9 52 11 13 3 18 2001 18 12 0 0 0 0 0 0 0 0 4 2 36 11 20 2 24 2002 14 9 1 0 0 0 0 0 0 0 4 19 47 11 19 3 11 2003 15 10 4 0 0 0 0 0 0 0 10 16 55 11 16 3 5 MEAN 21 13 3 0 0 0 0 0 0 0 3 13 53 11 8 4 30 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 29.6 24.9 19.1 13.4 5.5 ****** 1971 3.6 8.4 14.6 18.5 27.5 32.3 31.3 30.1 23.3 18.3 13.3 8.4 19.1 1972 1.6 -0.5 10.1 19.3 21.9 30.4 31.1 27.5 25.2 20.4 14.4 3.1 17.1 1973 2.2 10.8 13.3 19.4 26.6 32.7 33.0 30.4 25.2 20.2 13.3 5.1 19.3 1974 1.8 3.0 13.2 19.3 26.9 30.9 31.8 29.3 25.8 17.3 12.9 5.3 18.1 1975 4.5 7.7 14.3 17.8 24.8 31.3 34.2 30.3 26.6 18.5 11.3 6.3 19.0 1976 6.8 4.8 8.8 18.2 25.2 31.0 33.9 30.7 28.1 20.8 10.0 5.3 18.6 1977 0.1 ****** 18.0 20.0 23.9 33.2 33.7 31.1 26.3 20.0 13.2 8.5 ****** 1978 4.9 7.8 12.7 21.9 27.0 31.1 31.9 29.9 26.4 21.2 10.7 8.7 19.5 1979 5.4 8.9 11.2 21.7 22.2 30.3 32.3 28.2 25.8 22.5 12.1 6.4 18.9 1980 4.6 6.0 ****** 22.1 27.3 31.5 31.1 30.2 25.9 20.2 14.5 8.5 ****** 1981 6.8 9.1 14.7 21.4 25.4 29.6 31.6 29.6 25.8 17.6 13.9 10.0 19.6 1982 5.4 4.5 10.9 ****** 26.2 31.5 31.9 30.8 24.7 19.4 8.9 3.4 ****** 1983 2.8 7.2 10.3 17.0 26.4 31.9 34.0 32.1 25.9 18.5 15.2 6.4 19.0 1984 4.8 3.6 14.0 20.9 ****** 30.4 32.0 32.5 25.0 17.4 13.7 3.0 ****** 1985 5.4 10.9 10.9 21.0 25.8 32.1 33.1 27.5 25.5 18.4 12.8 6.9 19.2 1986 5.8 6.0 8.0 18.1 25.4 30.1 31.1 28.7 25.4 22.0 11.8 5.1 18.1 1987 7.6 8.9 14.9 20.0 26.3 30.1 31.3 31.5 27.0 16.6 13.9 7.8 19.7 1988 5.2 6.7 12.8 20.4 26.4 31.9 33.6 30.2 27.1 20.2 ****** 8.7 ****** 1989 2.1 3.3 13.0 19.9 24.3 31.6 32.7 29.5 26.4 21.1 13.4 9.2 18.9 1990 3.8 6.4 12.7 19.7 27.7 32.5 31.8 31.9 28.0 20.0 15.0 7.1 19.7 1991 4.8 5.8 11.0 19.5 23.7 29.9 31.3 29.8 25.5 19.2 13.8 8.6 18.6 1992 3.8 7.7 9.0 18.2 20.8 30.3 31.3 28.5 25.1 19.4 15.6 7.4 18.1 1993 2.9 8.0 10.5 19.9 24.3 30.0 30.3 29.5 27.0 ****** 13.5 7.8 ****** 1994 7.5 8.2 14.2 19.9 26.0 31.5 32.3 31.5 23.6 18.8 16.8 6.8 19.8 1995 7.7 8.4 13.2 19.2 24.8 30.5 35.2 31.9 ****** 21.0 15.6 5.4 ****** 1996 4.1 8.5 11.7 19.5 26.1 30.9 31.6 30.4 30.5 21.0 11.8 9.8 19.7 1997 9.0 8.1 12.8 18.9 24.7 31.8 33.8 32.1 27.4 23.5 12.2 8.1 20.2 1998 5.9 7.4 13.8 22.2 26.3 29.3 32.7 31.4 29.9 21.9 17.3 13.3 21.0 1999 6.3 12.0 12.7 19.8 26.6 32.7 31.7 30.9 28.0 23.3 13.7 9.6 20.6 2000 6.6 8.9 14.8 24.3 30.0 30.7 30.7 31.0 27.6 19.6 10.9 7.5 20.2 2001 5.3 7.8 14.0 23.7 28.9 32.4 32.7 31.0 26.4 20.6 13.0 8.6 20.4 2002 6.2 9.5 15.4 19.9 27.0 31.7 31.8 32.2 27.1 22.4 12.2 4.2 20.0 2003 6.1 7.9 12.5 20.9 23.5 31.1 34.8 30.6 25.5 21.8 10.2 4.7 19.1 MEAN 4.9 7.2 12.6 20.1 25.6 31.2 32.4 30.4 26.3 20.1 13.2 7.1 19.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** -5.5 -4.4 -1.0 -0.2 -3.2 ****** 1971 -2.5 -3.6 -1.6 1.6 6.0 3.6 5.0 2.5 -4.8 -6.0 1.3 -1.1 0.0 1972 -2.5 -4.8 1.8 4.0 4.9 9.7 9.1 9.1 6.5 2.7 1.5 -2.2 3.3 1973 -4.4 1.1 2.8 4.2 7.2 13.0 18.1 16.7 10.7 4.7 1.1 -2.8 6.0 1974 -3.7 -0.9 5.0 5.6 6.4 10.7 14.3 16.1 10.9 4.2 3.5 -0.8 5.9 1975 -1.2 0.0 3.3 8.3 11.7 13.3 14.2 13.7 11.7 5.9 2.3 1.8 7.1 1976 1.8 -1.2 2.1 8.6 11.4 13.1 15.9 14.2 11.3 8.8 -0.2 -0.6 7.1 1977 -3.5 ****** 5.3 9.2 11.7 13.1 14.0 15.4 12.7 8.5 2.5 -0.6 ****** 1978 -1.5 1.4 1.5 1.6 7.2 9.3 7.3 5.4 6.2 3.4 2.2 1.7 3.8 1979 -0.6 0.7 1.9 7.7 8.0 10.7 9.7 8.9 11.1 9.5 1.9 0.8 5.9 1980 -1.1 0.1 ****** 7.8 7.2 7.2 11.2 11.7 7.8 6.8 3.9 -0.3 ****** 1981 0.2 1.4 2.1 4.3 9.5 10.0 11.0 10.9 6.4 4.8 2.0 1.2 5.3 1982 -0.3 -1.5 2.9 ****** 6.2 11.3 9.4 10.1 8.3 7.2 0.2 -2.7 ****** 1983 -2.9 -0.6 -0.1 6.0 5.7 6.9 6.0 7.4 4.1 1.2 1.3 -2.1 2.7 1984 -3.7 -3.5 3.7 3.0 ****** 3.8 2.5 5.2 2.5 -0.4 2.0 -4.6 ****** 1985 -0.6 -1.7 -1.8 1.2 2.0 8.7 7.8 4.0 -0.7 0.7 1.9 0.0 1.8 1986 -3.4 1.2 0.4 6.1 4.8 5.2 5.6 5.6 4.5 3.4 1.1 -0.8 2.8 1987 -3.5 -0.5 4.5 4.4 6.3 6.0 7.8 7.7 5.5 3.5 -0.1 -1.1 3.4 1988 -3.5 -0.7 2.4 5.6 5.6 6.0 11.4 9.5 7.9 4.6 ****** -0.2 ****** 1989 -5.9 -4.4 0.8 1.4 2.8 3.1 5.7 6.2 5.6 5.0 1.9 -0.4 1.8 1990 -0.7 0.9 1.6 3.5 5.6 6.9 10.6 10.3 6.3 3.1 0.8 -1.1 4.0 1991 -0.3 -0.7 5.2 7.1 7.1 7.2 8.4 7.0 6.9 5.0 2.8 1.0 4.7 1992 -2.6 -0.9 0.1 5.8 7.7 9.3 9.1 8.7 7.1 5.0 2.0 -0.3 4.2 1993 -4.2 1.0 1.2 6.7 7.5 9.1 8.2 9.0 6.6 ****** 1.2 -2.1 ****** 1994 -1.5 -2.8 3.6 2.2 6.3 8.8 7.7 8.6 4.4 3.2 4.9 -2.9 3.5 1995 -1.6 -0.9 2.2 6.5 4.9 9.1 10.9 9.8 ****** 3.0 1.8 -1.8 ****** 1996 -3.5 0.1 3.7 5.0 6.0 7.1 8.8 7.2 7.8 4.6 -0.7 -1.4 3.7 1997 -1.3 -2.5 0.3 5.4 6.3 8.0 9.3 9.0 7.8 4.5 3.3 0.2 4.2 1998 -2.1 -1.3 1.7 5.4 6.1 7.0 8.2 8.5 8.2 4.9 2.3 -1.0 4.0 1999 -3.0 0.5 1.8 4.5 6.3 9.6 8.6 9.0 8.9 5.8 2.6 -2.1 4.4 2000 -3.3 -1.5 1.0 4.3 6.3 6.0 5.6 6.3 7.1 3.0 -1.2 -0.5 2.8 2001 -3.4 -1.8 2.2 3.6 4.8 5.0 3.6 4.8 2.2 1.9 -0.9 3.7 2.1 2002 -1.6 -1.6 -1.1 6.6 5.1 4.3 5.6 4.9 0.8 2.9 -0.6 -2.2 1.9 2003 -1.6 -0.8 0.5 4.6 1.8 5.2 8.0 4.7 2.1 0.7 -4.4 -1.9 1.6 MEAN -2.2 -0.9 1.9 5.0 6.4 8.1 9.1 8.3 6.1 3.8 1.3 -0.9 3.8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 3.20 3.51 4.25 4.50 3.53 ****** 1971 3.73 3.51 4.10 5.03 7.23 6.24 6.34 5.33 3.21 2.88 4.95 4.16 4.72 1972 3.75 3.26 5.11 5.98 6.41 8.93 8.68 8.49 7.10 5.43 4.97 3.86 6.00 1973 3.28 4.86 5.61 6.02 7.42 11.13 15.63 14.02 9.65 6.37 4.84 3.68 7.71 1974 3.38 4.22 6.50 6.61 7.14 9.40 11.90 13.69 9.54 6.02 5.76 4.21 7.37 1975 4.11 4.57 5.80 8.15 10.08 11.23 11.77 11.74 10.12 6.87 5.35 5.16 7.91 1976 5.13 4.24 5.28 8.21 9.80 11.02 13.19 11.92 9.73 8.30 4.64 4.33 7.98 1977 3.45 ****** 6.56 8.52 9.98 11.10 11.83 12.70 10.72 8.19 5.37 4.30 ****** 1978 4.09 4.99 5.01 5.16 7.33 8.64 7.43 6.55 6.90 5.73 5.25 5.11 6.02 1979 4.28 4.72 5.38 7.84 7.88 9.46 8.74 8.37 9.73 8.62 5.31 4.80 7.09 1980 4.14 4.65 ****** 7.87 7.48 7.49 9.70 10.17 7.74 7.22 5.92 4.35 ****** 1981 4.53 5.03 5.17 6.25 8.65 9.01 9.60 9.50 7.22 6.35 5.19 4.83 6.78 1982 4.43 4.04 5.51 ****** 7.01 10.06 8.51 9.05 7.96 7.46 4.52 3.71 ****** 1983 3.70 4.31 4.47 6.84 6.63 7.14 6.78 7.51 6.00 4.87 4.91 3.91 5.59 1984 3.42 3.53 6.00 5.55 ****** 5.86 5.28 6.37 5.30 4.31 5.13 3.22 ****** 1985 4.33 3.94 4.03 4.87 5.21 8.12 7.72 5.89 4.40 4.68 5.12 4.53 5.24 1986 3.50 4.86 4.65 6.92 6.32 6.35 6.63 6.58 6.15 5.65 4.89 4.32 5.57 1987 3.43 4.33 6.15 6.15 6.97 6.83 7.61 7.61 6.50 5.85 4.66 4.20 5.86 1988 3.49 4.29 5.37 6.92 6.57 6.79 9.79 8.62 7.77 6.21 ****** 4.47 ****** 1989 2.90 3.28 4.73 4.92 5.44 5.50 6.60 6.81 6.64 6.37 5.23 4.48 5.24 1990 4.30 4.83 5.05 5.69 6.57 7.16 9.23 9.09 6.88 5.58 4.73 4.13 6.10 1991 4.41 4.36 6.64 7.34 7.36 7.41 7.95 7.25 7.23 6.31 5.46 4.94 6.39 1992 3.74 4.22 4.63 6.72 7.65 8.52 8.31 8.15 7.27 6.30 5.17 4.39 6.26 1993 3.31 4.87 5.05 7.22 7.55 8.31 7.82 8.27 7.03 ****** 4.92 3.82 ****** 1994 4.03 3.65 5.79 5.28 6.90 8.14 7.55 8.01 6.04 5.59 6.27 3.79 5.92 1995 3.98 4.26 5.34 7.10 6.24 8.29 9.44 8.71 ****** 5.69 5.17 3.90 ****** 1996 3.51 4.60 5.80 6.40 6.78 7.25 8.13 7.32 7.58 6.14 4.27 4.03 5.98 1997 4.01 3.81 4.53 6.68 6.88 7.71 8.42 8.26 7.61 6.13 5.70 4.53 6.19 1998 3.82 4.10 5.06 6.54 6.78 7.19 7.88 7.99 7.77 6.29 5.21 4.10 6.06 1999 3.59 4.72 5.23 6.16 6.89 8.67 8.10 8.26 8.30 6.67 5.38 3.80 6.31 2000 3.54 4.01 4.81 6.01 6.90 6.82 6.56 6.84 7.28 5.50 4.13 4.30 5.56 2001 3.47 3.93 5.28 5.73 6.31 6.43 5.79 6.30 5.37 5.15 4.24 5.85 5.32 2002 4.03 4.01 4.20 7.12 6.41 5.98 6.65 6.41 4.69 5.43 4.48 4.03 5.29 2003 3.98 4.28 4.73 6.26 5.25 6.40 7.80 6.23 5.20 4.74 3.35 4.04 5.19 MEAN 3.84 4.26 5.24 6.50 7.13 8.02 8.59 8.27 7.10 5.97 5.00 4.26 6.18 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 4.51 4.94 5.95 6.28 4.93 ****** 1971 5.19 4.90 5.73 7.04 10.11 8.76 8.90 7.50 4.51 4.04 6.90 5.80 6.61 1972 5.21 4.53 7.12 8.36 8.96 12.48 12.14 11.87 9.94 7.60 6.95 5.37 8.38 1973 4.57 6.78 7.82 8.42 10.39 15.51 21.61 19.45 13.45 8.90 6.76 5.13 10.73 1974 4.70 5.87 9.06 9.24 9.99 13.13 16.57 18.98 13.31 8.40 8.03 5.86 10.26 1975 5.72 6.37 8.09 11.34 14.03 15.64 16.41 16.34 14.10 9.59 7.46 7.18 11.02 1976 7.13 5.90 7.35 11.43 13.66 15.36 18.34 16.59 13.58 11.57 6.47 6.02 11.12 1977 4.79 ****** 9.16 11.86 13.89 15.49 16.49 17.66 14.93 11.40 7.50 6.00 ****** 1978 5.70 6.95 7.00 7.23 10.27 12.09 10.42 9.19 9.67 8.02 7.32 7.12 8.41 1979 5.96 6.57 7.49 10.94 11.00 13.21 12.24 11.71 13.56 12.01 7.41 6.68 9.90 1980 5.76 6.47 ****** 10.97 10.47 10.50 13.55 14.19 10.82 10.08 8.25 6.06 ****** 1981 6.30 7.01 7.23 8.74 12.07 12.59 13.42 13.27 10.10 8.87 7.25 6.74 9.46 1982 6.17 5.63 7.68 ****** 9.80 14.03 11.91 12.65 11.13 10.41 6.31 5.17 ****** 1983 5.14 6.00 6.23 9.54 9.29 10.02 9.53 10.53 8.41 6.81 6.86 5.45 7.82 1984 4.77 4.91 8.36 7.77 ****** 8.23 7.43 8.95 7.44 6.03 7.16 4.48 ****** 1985 6.03 5.50 5.62 6.82 7.30 11.38 10.83 8.27 6.18 6.55 7.15 6.31 7.33 1986 4.88 6.76 6.48 9.65 8.85 8.92 9.30 9.23 8.62 7.91 6.83 6.01 7.79 1987 4.79 6.04 8.58 8.60 9.76 9.58 10.68 10.67 9.11 8.17 6.50 5.85 8.19 1988 4.86 5.98 7.49 9.66 9.20 9.54 13.69 12.07 10.87 8.68 ****** 6.23 ****** 1989 4.03 4.58 6.61 6.90 7.62 7.73 9.27 9.55 9.30 8.91 7.29 6.24 7.34 1990 5.98 6.72 7.04 7.96 9.21 10.06 12.91 12.71 9.65 7.81 6.62 5.75 8.53 1991 6.14 6.07 9.23 10.23 10.29 10.39 11.14 10.17 10.12 8.82 7.63 6.88 8.93 1992 5.20 5.89 6.46 9.38 10.67 11.91 11.65 11.41 10.18 8.80 7.22 6.11 8.74 1993 4.61 6.78 7.04 10.07 10.56 11.64 10.96 11.58 9.85 ****** 6.87 5.32 ****** 1994 5.62 5.09 8.08 7.39 9.67 11.41 10.59 11.23 8.46 7.82 8.75 5.28 8.28 1995 5.55 5.94 7.44 9.91 8.74 11.61 13.23 12.20 ****** 7.96 7.22 5.43 ****** 1996 4.88 6.41 8.08 8.94 9.49 10.18 11.39 10.26 10.62 8.59 5.97 5.63 8.37 1997 5.59 5.31 6.33 9.33 9.63 10.81 11.80 11.58 10.65 8.58 7.95 6.31 8.66 1998 5.32 5.72 7.07 9.15 9.49 10.09 11.05 11.20 10.89 8.80 7.29 5.74 8.48 1999 5.01 6.59 7.29 8.61 9.66 12.14 11.35 11.57 11.60 9.33 7.50 5.30 8.83 2000 4.93 5.59 6.73 8.42 9.68 9.57 9.22 9.61 10.20 7.70 5.76 5.99 7.78 2001 4.84 5.49 7.37 8.04 8.85 9.03 8.15 8.85 7.53 7.22 5.93 8.13 7.45 2002 5.62 5.59 5.88 9.94 8.99 8.40 9.33 9.00 6.59 7.61 6.25 5.61 7.40 2003 5.54 5.96 6.61 8.75 7.35 8.99 10.94 8.75 7.30 6.65 4.68 5.63 7.26 MEAN 5.35 5.93 7.30 9.08 9.97 11.22 12.01 11.57 9.93 8.35 6.98 5.93 8.64 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 37.60 27.69 17.52 9.98 4.65 ****** 1971 3.14 6.88 12.36 15.01 28.48 41.12 38.08 36.43 25.40 17.83 8.74 5.84 19.94 1972 1.78 1.72 5.74 14.98 18.21 32.09 34.30 26.17 23.62 17.02 10.06 2.71 15.70 1973 3.03 7.03 8.22 15.41 25.42 35.04 29.90 25.22 19.88 16.02 9.42 4.07 16.55 1974 2.41 1.98 7.86 14.70 26.38 32.84 31.22 22.83 20.86 11.98 7.62 3.28 15.33 1975 2.98 4.84 9.13 10.13 18.44 31.01 38.17 28.44 21.83 12.92 6.52 2.79 15.60 1976 3.19 3.30 4.41 10.68 19.16 30.28 35.64 28.43 25.54 14.04 6.42 3.19 15.36 1977 1.47 ****** 12.39 12.62 16.44 36.58 36.92 28.45 20.12 13.54 8.04 5.62 ****** 1978 3.36 4.27 8.44 19.98 26.69 34.42 38.11 34.09 25.81 17.80 6.07 4.46 18.62 1979 3.25 5.23 6.97 16.91 17.06 31.04 37.30 27.56 21.04 16.25 7.58 3.31 16.13 1980 2.94 3.25 ****** 16.50 27.06 37.04 32.57 30.07 23.75 14.78 8.74 5.42 ****** 1981 3.84 4.99 10.28 18.06 21.98 30.17 34.50 29.29 24.63 12.06 9.48 5.90 17.10 1982 3.12 3.18 5.90 ****** 25.26 33.20 36.75 33.77 20.77 13.51 5.46 2.85 ****** 1983 2.64 4.64 6.75 11.02 26.12 38.79 44.90 38.81 26.70 15.46 11.19 4.86 19.32 1984 4.07 3.52 8.10 18.01 ****** 36.25 40.88 41.01 25.39 14.76 9.05 3.39 ****** 1985 3.26 8.37 9.01 19.19 26.93 37.64 40.94 29.20 27.53 15.60 8.15 4.26 19.17 1986 4.77 2.93 4.72 11.75 24.59 35.05 36.82 30.97 24.59 19.74 8.01 3.19 17.26 1987 6.12 5.95 8.93 16.63 25.73 33.93 35.94 36.45 27.90 12.30 10.52 5.28 18.81 1988 4.26 4.26 7.92 15.78 26.35 38.99 39.60 31.96 26.57 15.62 ****** 5.49 ****** 1989 3.28 3.47 8.93 17.25 24.79 39.82 41.47 32.58 26.80 17.41 8.76 6.01 19.21 1990 2.22 3.24 8.69 16.02 29.40 40.10 34.99 35.51 29.25 16.74 11.40 5.00 19.38 1991 2.64 3.68 4.37 13.66 20.42 33.21 35.98 33.23 24.44 14.03 8.75 4.92 16.61 1992 3.09 5.11 5.57 12.64 15.02 32.38 35.07 28.32 22.33 14.44 11.36 4.41 15.81 1993 3.29 4.25 6.16 13.91 21.21 32.12 33.16 30.53 26.67 ****** 9.59 5.50 ****** 1994 5.07 6.30 8.73 17.47 24.70 36.05 38.93 36.25 21.40 14.49 10.80 5.24 18.79 1995 5.20 5.48 8.35 12.97 23.10 33.25 44.51 36.14 ****** 18.58 11.56 3.68 ****** 1996 3.70 5.14 6.17 15.04 25.58 35.82 36.07 34.08 34.03 16.70 8.48 6.87 18.97 1997 6.28 6.08 8.97 13.16 22.68 37.23 41.88 37.52 26.72 21.80 6.57 4.71 19.47 1998 4.14 4.97 9.61 19.40 25.83 31.61 39.79 35.51 32.04 18.58 13.01 9.91 20.37 1999 4.72 7.77 7.97 15.08 26.21 39.04 36.64 34.03 27.50 19.90 8.56 6.81 19.52 2000 5.12 6.13 10.80 23.07 33.58 35.91 35.84 36.39 27.88 15.80 7.82 4.60 20.25 2001 4.38 5.54 9.49 22.07 31.77 40.78 42.68 37.02 28.49 18.00 9.83 3.31 21.11 2002 4.35 7.00 12.86 14.54 27.93 39.55 38.78 40.28 30.71 20.60 8.70 2.96 20.69 2003 4.27 5.19 8.76 17.54 22.76 37.33 45.99 36.16 26.72 20.47 8.70 3.47 19.78 MEAN 3.68 4.87 8.21 15.66 24.23 35.44 37.71 32.95 25.59 16.25 8.94 4.65 18.18 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 12 17 29 45 58 *** 1971 67 46 37 35 28 19 20 18 16 20 47 55 34 1972 75 74 59 38 35 29 27 33 31 33 43 70 46 1973 64 53 51 40 31 32 43 45 41 38 45 59 45 1974 68 76 61 45 28 30 36 47 40 43 54 66 50 1975 68 61 49 56 45 34 31 37 41 45 55 75 50 1976 72 67 65 55 43 34 35 37 36 48 51 67 51 1977 77 *** 45 53 47 30 32 39 44 51 50 55 *** 1978 65 65 49 29 30 27 22 22 29 32 58 63 41 1979 66 58 55 44 43 31 26 31 41 45 51 69 47 1980 67 66 *** 42 30 23 30 33 33 43 50 56 *** 1981 63 61 44 36 39 31 29 32 30 45 45 56 43 1982 68 66 60 *** 30 30 26 29 36 46 55 66 *** 1983 68 59 51 53 28 22 18 22 25 32 40 56 40 1984 56 61 52 32 *** 20 16 19 24 31 46 58 *** 1985 66 43 44 29 23 24 22 23 19 32 49 65 37 1986 54 73 61 48 28 22 21 24 27 31 50 67 42 1987 48 54 52 40 29 23 24 24 26 45 39 55 38 1988 55 62 52 40 28 21 27 28 31 37 *** 55 *** 1989 56 59 45 30 27 17 19 24 28 36 48 54 37 1990 74 70 49 35 25 21 28 27 26 34 39 58 41 1991 71 65 69 46 36 25 25 24 32 40 49 61 45 1992 63 55 54 46 46 29 26 29 32 39 41 60 43 1993 61 62 54 44 35 28 26 29 28 *** 45 50 *** 1994 54 47 51 32 30 25 22 25 30 36 46 50 37 1995 52 53 48 46 28 27 23 26 *** 31 40 61 *** 1996 59 57 58 40 29 23 25 24 25 35 42 46 39 1997 49 48 43 43 32 23 23 24 29 31 56 58 38 1998 57 55 45 35 29 25 22 25 26 34 37 38 36 1999 52 47 51 38 28 25 25 26 31 33 48 45 37 2000 50 49 40 28 23 22 21 22 28 34 43 58 35 2001 54 51 46 28 23 19 17 20 22 31 40 73 35 2002 59 48 34 45 27 19 20 19 19 29 44 68 36 2003 62 58 47 38 26 21 20 20 23 26 38 65 37 MEAN 62 58 51 40 32 25 25 27 29 36 46 59 41 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 20 27 40 62 71 *** 1971 78 62 52 50 34 25 27 24 21 26 60 70 44 1972 83 82 72 48 45 35 31 41 39 42 50 78 54 1973 78 65 59 47 41 42 52 52 48 47 55 68 55 1974 78 84 70 57 35 39 44 53 45 49 62 73 57 1975 75 70 58 64 54 40 35 43 49 54 62 85 57 1976 84 77 73 64 51 39 39 43 44 54 60 75 59 1977 84 *** 55 61 56 35 36 44 51 57 61 66 *** 1978 74 74 59 39 36 33 29 29 34 38 68 71 49 1979 75 67 66 51 52 40 30 36 47 52 59 77 54 1980 74 71 *** 51 37 27 36 39 39 49 57 64 *** 1981 70 68 54 47 49 37 36 40 37 54 51 62 50 1982 76 72 71 *** 39 36 31 35 41 54 61 71 *** 1983 75 65 59 65 36 27 22 29 29 39 47 62 46 1984 62 68 64 40 *** 26 22 25 30 37 54 66 *** 1985 74 52 55 38 29 28 29 30 24 39 58 73 44 1986 64 83 70 60 37 29 29 29 33 36 57 75 50 1987 59 64 61 47 35 28 31 31 33 52 47 65 46 1988 63 71 61 52 38 26 34 33 38 45 *** 67 *** 1989 64 68 53 37 36 23 25 31 34 43 56 62 44 1990 82 80 58 42 31 24 30 31 30 40 47 66 47 1991 76 74 75 55 43 31 30 29 37 48 57 71 52 1992 69 60 62 52 52 34 32 33 38 44 48 67 49 1993 68 69 59 49 40 33 32 35 34 *** 53 56 *** 1994 60 55 59 38 35 32 29 31 34 41 52 55 43 1995 57 59 54 52 33 31 28 32 *** 38 45 66 *** 1996 64 64 65 48 36 28 29 30 30 42 47 54 45 1997 57 56 53 49 38 29 28 29 35 38 61 63 45 1998 62 60 52 40 34 30 26 28 31 41 44 43 41 1999 57 53 58 43 33 30 30 31 36 38 53 50 43 2000 57 54 45 33 28 28 24 27 34 39 48 64 40 2001 58 57 52 34 28 24 23 27 29 39 51 82 42 2002 68 62 44 57 36 24 27 27 25 37 56 82 45 2003 74 74 62 53 37 28 28 28 30 34 47 74 47 MEAN 70 67 60 49 39 31 31 33 35 43 54 67 48 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 5 9 18 24 44 *** 1971 56 35 26 25 23 14 16 14 11 14 36 42 26 1972 68 66 46 30 27 23 22 27 25 22 34 60 38 1973 50 43 43 33 23 24 35 38 35 26 34 47 36 1974 59 67 52 36 22 23 30 39 34 35 46 58 42 1975 60 50 41 47 38 29 27 32 34 36 47 63 42 1976 59 56 57 47 35 30 31 33 30 40 41 59 43 1977 69 *** 36 45 40 26 27 35 37 45 38 44 *** 1978 56 57 40 20 23 22 18 17 23 25 49 54 34 1979 57 49 44 36 33 25 21 27 33 34 40 60 38 1980 61 61 *** 32 24 19 25 28 27 37 43 46 *** 1981 55 53 36 26 30 25 24 26 24 36 38 48 35 1982 58 58 50 *** 23 25 21 24 29 39 48 61 *** 1983 60 52 43 43 22 18 15 17 20 26 33 50 33 1984 48 53 42 26 *** 15 12 14 19 25 38 50 *** 1985 57 34 34 21 18 20 17 18 14 25 39 56 29 1986 42 64 50 38 21 16 16 19 20 25 41 59 34 1987 35 41 42 32 23 18 18 18 20 37 31 44 30 1988 47 53 43 31 20 16 22 24 24 29 *** 43 *** 1989 49 50 38 25 21 13 15 18 22 28 40 45 30 1990 67 61 39 28 20 17 24 23 21 27 31 48 34 1991 65 55 63 39 30 19 20 20 26 32 41 54 39 1992 58 50 47 40 40 24 20 25 26 33 33 53 37 1993 53 56 49 38 29 23 20 22 22 *** 35 42 *** 1994 46 38 44 26 23 19 17 20 24 30 40 45 31 1995 47 46 42 39 23 22 19 21 *** 26 33 55 *** 1996 52 50 52 32 23 19 21 19 20 29 37 39 33 1997 41 40 35 36 26 19 19 20 24 26 50 54 33 1998 51 49 40 29 24 20 19 21 22 27 31 33 31 1999 47 41 44 32 24 20 20 22 26 28 43 39 32 2000 44 44 35 23 19 18 18 17 23 28 39 52 30 2001 49 45 41 22 18 16 13 16 17 24 31 64 30 2002 50 37 26 35 20 14 16 15 14 22 33 56 28 2003 50 44 36 27 18 16 16 16 17 19 27 54 28 MEAN 54 50 42 32 25 20 20 22 23 29 38 51 34 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. NO. OF DAYS PRECIPITATION EQUAL OR MORE THAN 5 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 0 0 0 0 1 *** 1971 0 0 0 1 0 0 0 0 0 0 0 1 2 1972 3 0 0 1 1 0 0 0 0 0 0 0 5 1973 0 1 2 0 0 0 0 0 0 0 0 0 3 1974 4 4 2 1 0 0 0 0 0 0 0 1 12 1975 1 0 1 3 0 0 0 0 0 0 0 1 6 1976 1 4 4 2 0 0 0 0 0 0 0 1 12 1977 3 *** 0 2 1 0 0 0 0 2 0 1 *** 1978 3 3 2 1 0 0 0 0 0 0 1 3 13 1979 3 0 1 1 1 0 0 0 0 0 0 7 13 1980 2 1 *** 3 0 0 0 0 0 0 0 0 *** 1981 2 4 1 2 2 0 0 0 0 1 0 0 12 1982 4 5 3 *** 1 0 0 0 0 0 0 2 *** 1983 2 2 2 7 0 0 0 0 0 0 0 0 13 1984 1 1 2 0 *** 0 0 0 0 0 1 1 *** 1985 2 1 1 0 0 0 0 0 0 0 0 4 8 1986 0 5 4 3 0 0 0 0 0 0 1 4 17 1987 0 2 4 1 0 0 0 0 0 1 0 1 9 1988 0 3 4 1 0 0 0 0 0 0 *** 1 *** 1989 0 1 1 0 1 1 0 0 0 0 0 1 5 1990 3 6 0 0 0 0 0 0 0 0 0 2 11 1991 1 3 4 0 1 0 0 0 0 0 1 3 13 1992 1 0 1 4 4 0 0 0 0 0 0 2 12 1993 1 4 2 2 1 0 0 0 0 *** 0 0 *** 1994 1 0 3 0 1 0 0 0 0 0 1 1 7 1995 1 1 2 2 0 0 0 0 *** 0 0 3 *** 1996 1 4 3 0 1 0 0 0 0 0 0 0 9 1997 1 0 1 2 1 0 0 0 0 1 1 3 10 1998 1 2 0 1 0 0 0 0 0 0 0 0 4 1999 3 2 4 0 0 0 0 0 0 0 0 0 9 2000 2 0 0 0 0 0 0 0 0 0 0 3 5 2001 0 0 1 0 0 0 0 0 0 0 0 2 3 2002 2 2 0 1 0 0 0 0 0 0 0 2 7 2003 1 0 2 0 0 0 0 0 0 0 0 1 4 MEAN 2 2 2 1 1 0 0 0 0 0 0 2 10 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. HIGHEST AND LOWEST LIMITS FOR 34 YEARS DURING 1970-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 13.2 14.6 22.4 27.2 31.2 36.4 37.2 33.8 30.4 25.2 21.8 18.2 1 YEAR - DAY 2002- 8 1999-21 1977- 5 1978-11 2001-17 1988-17 1976-20 1975- 4 1996-11 1977-18 1978- 2 1989- 5 LOW. DRY 03 -7.6 -9.8 -3.6 3.2 7.8 18.8 21.4 16.4 10.4 3.8 -2.0 -9.2 2 YEAR - DAY 1973- 4 1972- 3 1985- 4 1996- 7 1989- 2 2003- 7 1991-23 1972-26 1994-21 1987-30 1996-17 2002- 5 HIG. WET 03 8.0 12.2 16.2 16.6 19.6 25.0 25.0 24.2 19.0 16.2 13.2 11.4 3 YEAR - DAY 1973-16 1999-21 1977- 4 1979- 6 1974-24 1977-22 1973-23 1975-17 1977-28 1976-15 1978- 2 1989- 5 LOW. WET 03 -8.0 -10.0 -4.8 -1.0 3.8 10.4 10.4 9.0 4.2 0.4 -4.4 -10.2 4 YEAR - DAY 1971-27 1972- 3 1985- 4 1996- 7 1989- 3 1996-18 2001-30 1991-26 2003-29 1970-25 2000-18 2002- 5 HIG. DRY 09 20.2 24.8 29.2 35.0 39.4 42.6 43.2 42.4 38.8 34.8 27.8 23.2 5 YEAR - DAY 1987-27 1985-27 1971-15 1979-23 1971-28 1980-10 1983-28 1982- 1 1996- 8 2003- 4 1978- 1 1987-24 LOW. DRY 09 -3.8 -6.2 1.4 8.2 10.2 24.6 27.8 24.0 17.8 8.2 3.8 -3.8 6 YEAR - DAY 1972-24 1972- 1 1985- 3 1994- 5 1992- 2 2000-14 1999-10 1972-26 1991-28 1977-26 1986-23 1972-26 HIG. WET 09 12.0 14.8 20.0 22.2 24.2 29.0 29.6 28.6 24.4 21.8 17.4 15.4 7 YEAR - DAY 2002- 8 1996-10 1977- 4 1977-14 1975-26 1982-12 1973-23 1973- 3 1973- 2 1979- 7 1979- 4 1991-11 LOW. WET 09 -5.2 -7.0 -0.2 2.2 8.2 13.4 13.8 12.8 9.2 4.2 1.8 -4.0 8 YEAR - DAY 1996-16 1972- 1 1985- 3 1994- 5 2003- 2 1971-17 2001-30 2002-14 1970-20 1970-24 1987-29 1972-26 HIG. DRY 15 16.6 21.2 26.2 32.2 37.6 39.4 40.8 38.6 36.2 33.4 24.4 18.6 9 YEAR - DAY 2002- 7 1985-26 1977- 4 1987-19 1971-27 1971- 8 2003-31 1977-18 1996- 8 1997-14 1998- 3 1987-24 LOW. DRY 15 -6.4 -8.6 0.8 5.8 8.8 23.4 23.2 21.8 14.4 7.2 1.0 -6.0 10 YEAR - DAY 1973- 4 1972- 4 1985- 3 1981- 2 1992- 2 2000-13 1981-10 1992-31 1991-28 1987-28 2003-24 1972-24 HIG. WET 15 10.0 14.0 19.0 21.0 23.0 31.4 30.2 29.0 22.4 20.4 16.0 12.8 11 YEAR - DAY 1976-21 1996-10 1977- 4 1977-14 1974-23 1975-28 1973-23 1973- 1 1973- 3 1979- 5 1987- 7 1991-11 LOW. WET 15 -7.2 -9.0 -2.0 1.8 7.2 13.0 13.8 12.0 7.2 2.0 -2.8 -7.4 12 YEAR - DAY 1973- 4 1972- 4 2003- 1 1981- 2 2003- 1 1971- 7 2001-30 1970-29 1970-21 1970-24 2003-24 2003-12 HIG. MIN. 6.5 13.5 15.5 22.5 27.5 28.5 31.0 28.5 25.0 20.0 15.5 12.5 13 YEAR - DAY 2002- 8 1976-11 1981-29 2001-27 2001-17 1977-21 1995-12 2003- 2 1998-28 1986- 3 1978- 2 1989- 4 LOW. MIN. -12.0 -17.0 -7.0 -26.0 5.0 13.0 16.5 2.1 7.0 1.5 -6.0 -12.5 14 YEAR - DAY 1973-27 1972- 5 1979- 6 1974-30 1989- 2 1993- 1 1980- 2 2000- 8 1994-22 1975-22 1996-18 1972-28 HIG. MAX. 21.0 25.5 30.0 36.0 41.0 43.5 45.0 43.5 39.5 35.5 35.5 24.0 15 YEAR - DAY 2002- 8 1985-27 1971-15 1979-23 1971-28 1980-10 1998- 8 1982- 1 1996- 8 1979-11 1986- 1 1987-24 LOW. MAX. -1.5 -5.0 3.5 11.0 14.5 25.5 29.5 26.0 18.0 9.5 7.5 -2.5 16 YEAR - DAY 1978-14 1972- 1 1985- 6 1974-12 1979- 9 2000-14 1986-23 1972-26 1991-28 1977-26 1975-16 1972-26 HIG. PPTN 25.0 22.0 33.0 47.0 21.0 7.0 3.0 0.0 0.0 12.0 14.0 24.0 17 YEAR - DAY 1972-31 1998-12 2003-13 1983- 6 1992-12 1989- 7 1988-28 999-** 999-** 1977-26 1997-14 1991-15 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 34 YEARS DURING 1970-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 16.4 19.0 16.8 19.8 15.6 14.0 17.0 15.4 15.0 19.2 17.0 15.0 18 YEAR - DAY 1985-10 1985-26 1990-11 1976-17 1977-25 1979-11 1981-17 1980- 3 1980-20 1979-11 1970-17 2003-20 DRY 15 - DRY 09 8.6 10.4 12.6 13.4 13.6 11.6 14.6 11.6 12.8 13.0 10.6 11.2 19 YEAR - DAY 1971- 4 1972-18 2002- 7 1981- 1 1978- 3 1979-13 1981-10 1978-23 1999-14 1979-11 1970- 9 2003-11 DRY 15 - DRY 03 11.6 16.8 15.2 15.8 12.8 12.4 15.4 13.2 13.8 13.0 11.6 12.6 20 YEAR - DAY 1987-26 1971-13 1971-19 1976-17 1991-30 1977-13 1981-17 1971- 6 2000-11 1997-14 1992-23 1988-27 WET 09 - WET 03 12.6 13.4 12.2 12.2 9.6 8.2 9.6 9.6 10.2 11.6 12.0 10.2 21 YEAR - DAY 1985-10 1971-13 1990-11 1976- 1 1971-16 1982-12 1981-17 1973-11 1970- 4 1977- 5 1981-16 1973-18 WET 15 - WET 09 6.4 8.6 8.8 5.0 7.4 9.4 7.2 5.6 10.2 7.4 7.0 10.2 22 YEAR - DAY 2001-15 1972-18 2002- 7 1975- 4 1978- 3 2000-11 1973- 3 1973-11 1970- 4 1996- 8 1976-29 2003-11 WET 15 - WET 03 10.2 13.2 9.6 11.2 7.8 13.6 9.2 9.8 8.0 9.0 8.8 8.4 23 YEAR - DAY 1976-11 1971-13 1976-29 1988- 7 1971-16 2000-11 1981-17 1974-25 1991-24 1973-11 1992-23 1990- 4 DAY BY DAY DRY 03 11.2 11.8 14.4 14.4 9.6 9.8 8.0 7.8 9.0 10.4 14.0 14.0 24 YEAR - DAY 1987- 7 1973- 7 2003- 9 1971-19 1991-24 2002- 8 1971- 7 1976- 2 1970-19 1971-11 1993-15 1989- 6 DAY BY DAY WET 03 11.0 9.8 10.2 8.0 6.2 5.8 7.0 7.8 7.2 7.0 10.2 11.0 25 YEAR - DAY 1978-12 1973- 7 1977- 6 1987- 1 1980- 1 1972-24 1973-27 1975-21 1970-20 1977-24 2001-20 2003-12 DAY BY DAY DRY 09 13.6 12.4 14.6 16.4 13.0 9.8 12.0 7.2 9.6 13.6 13.8 10.8 26 YEAR - DAY 1986-21 1984-15 2001-26 1996- 4 1992-11 2000-15 1999-10 1996-30 1992-30 1987-27 1993-15 1985- 5 DAY BY DAY WET 09 8.6 9.2 10.0 11.0 6.0 9.2 11.6 6.4 9.2 9.8 9.6 8.8 27 YEAR - DAY 1989- 5 1971- 6 2001-11 1996- 4 1991-23 1982-12 1973-24 2002-14 1970- 4 1977-24 1976-30 1976-20 DAY BY DAY DRY 15 11.0 12.0 14.8 16.2 11.6 11.2 12.4 10.2 12.4 12.2 10.0 13.8 28 YEAR - DAY 1986-21 1985-26 1971-21 1996- 4 1978- 1 1971- 8 1981-11 1978-23 1999-15 1987-27 1993-15 2003-11 DAY BY DAY WET 15 9.2 8.4 9.4 10.4 7.2 12.8 8.6 5.4 7.6 9.0 8.4 11.0 29 YEAR - DAY 1986-21 1985-26 1985- 1 1996- 4 1980- 5 2000-11 1973-27 2002-14 1992-30 1970-24 1993-30 2003-11 DAY BY DAY MIN. 9.0 11.0 10.5 39.5 41.5 7.0 7.5 19.9 8.0 8.0 13.5 11.5 30 YEAR - DAY 1978-12 1983-23 1971-22 1974-30 1974- 1 1971- 7 1976- 1 2000- 8 1991-27 1987-10 1993-15 2003-12 DAY BY DAY MAX. 12.0 12.1 16.5 13.0 10.0 10.0 5.5 6.0 7.0 12.2 11.0 11.0 31 YEAR - DAY 1974-25 1996-12 2001-27 1997-12 1973-19 1971- 8 1972-31 1986- 9 1970- 8 1995-18 1976-30 1970-15 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** 30.3 23.7 18.5 13.5 5.5 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** 22.7 16.4 11.5 6.5 -0.5 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** 38.0 31.0 25.6 20.6 11.5 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** 15.3 14.6 14.1 14.1 12.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** 4.76 4.35 4.21 4.72 3.23 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** 1.92 3.11 3.98 3.88 3.71 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** 2.92 3.08 4.55 4.90 3.67 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** 19.0 8.0 4.0 2.0 -5.5 ****** DAY ** ** ** ** ** ** ** 31 21 24 15 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** 40.0 38.0 31.0 26.0 20.5 ****** DAY ** ** ** ** ** ** ** 23 2 1 9 8 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** 0.0 0.0 0.0 0.0 10.5 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 14 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** 0.0 0.0 0.0 0.0 14.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** 0.0 100.0 NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** 0 0 0 0 3 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** 0 0 0 0 3 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** 0 0 0 0 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** 20 26 37 60 68 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** 5 11 19 25 45 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** 10 14 30 49 59 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 0 0 0 0 9 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 12 1 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 15 20 7 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 5 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** 0 0 0 0 17 *** DATE OF START AND END FREEZING START = 2 DEC. END = 31 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.1 7.6 13.7 17.4 25.6 30.0 29.0 28.2 21.9 17.6 12.4 7.4 17.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.3 1.8 7.2 11.5 18.6 22.7 22.3 20.6 14.7 10.5 6.6 1.5 11.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.5 13.4 20.2 23.3 32.6 37.3 35.8 35.7 29.0 24.7 18.3 13.4 24.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.8 11.6 13.0 11.8 14.0 14.6 13.5 15.1 14.3 14.2 11.7 11.9 13.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.14 3.37 3.91 5.40 6.45 5.70 6.17 4.89 2.96 2.73 4.85 3.81 4.45 MEAN OF MIXING RATIO AT 09 GMT. 4.04 3.66 4.20 5.04 8.05 6.64 6.56 5.57 3.03 2.84 5.07 4.21 4.91 MEAN OF MIXING RATIO AT 15 GMT. 4.01 3.49 4.19 4.65 7.19 6.37 6.28 5.54 3.63 3.06 4.92 4.45 4.82 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.0 -7.0 0.5 5.5 10.0 16.5 17.5 17.0 10.5 6.0 3.5 -3.0 -10.0 DAY 27 4 22 4 3 8 3 11 18 21 17 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.0 22.5 30.0 29.5 41.0 41.0 40.0 38.0 38.5 30.0 25.0 19.5 41.0 DAY 5 23 15 17 28 8 10 7 2 8 4 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 1.5 4.0 6.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20.5 20.5 DAY ** 14 6 26 ** ** ** ** ** ** ** 20 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 2.7 4.0 6.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23.0 35.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 18.8 16.8 0.0 64.4 NO. OF DAYS WITH PRECIPITATION. 0 3 1 1 0 0 0 0 0 0 0 2 7 NO. OF DAYS PRECIPITATION EQUAL 0 2 1 1 0 0 0 0 0 0 0 2 6 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 1 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 61 49 50 34 24 26 23 19 24 59 67 42 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 37 29 28 25 16 18 15 12 14 38 43 28 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 41 34 29 24 16 17 17 18 21 45 55 32 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 11 4 0 0 0 0 0 0 0 0 0 0 15 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 12 23 22 16 3 0 0 0 77 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 1 0 23 30 31 31 10 1 0 0 127 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 5 2 0 0 0 0 0 8 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 23 11 0 0 0 0 0 0 0 0 0 12 46 DATE OF START AND END FREEZING START = 13 DEC. END = 26 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1972 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.7 -1.4 9.4 17.4 20.3 27.9 28.5 25.1 23.1 19.0 12.5 2.0 15.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.7 -6.4 3.4 10.7 13.5 20.7 21.3 18.1 15.3 11.7 6.0 -2.2 9.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.1 3.7 15.3 24.2 27.0 35.1 35.8 32.1 31.0 26.2 19.0 6.1 21.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.8 10.1 11.9 13.5 13.5 14.4 14.5 14.0 15.8 14.5 13.0 8.3 12.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.38 2.81 4.85 5.81 6.43 8.40 7.59 8.07 6.40 5.29 4.47 3.62 5.59 MEAN OF MIXING RATIO AT 09 GMT. 4.13 3.79 5.21 6.14 6.31 8.88 9.23 8.72 7.54 4.97 5.05 4.07 6.17 MEAN OF MIXING RATIO AT 15 GMT. 3.74 3.19 5.27 5.98 6.47 9.52 9.23 8.69 7.36 6.04 5.40 3.89 6.23 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -17.0 0.0 6.5 9.5 16.5 17.5 10.5 7.5 8.0 1.5 -12.5 -17.0 DAY 31 5 4 3 11 4 18 28 20 21 24 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 14.5 23.5 30.0 35.0 42.0 41.5 39.0 35.5 31.0 27.0 22.0 42.0 DAY 16 18 23 27 30 23 1 1 10 7 4 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.0 0.0 4.0 13.0 11.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 25.0 DAY 31 ** 2 25 9 ** ** ** ** ** ** 7 MONTHLY TOTAL PRECIPITATION IN MM. 62.5 0.0 11.0 13.0 11.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 100.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 73.1 23.9 0.0 3.0 NO. OF DAYS WITH PRECIPITATION. 5 0 4 1 1 0 0 0 0 0 0 2 13 NO. OF DAYS PRECIPITATION EQUAL 5 0 4 1 1 0 0 0 0 0 0 2 13 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 0 1 1 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 75 69 47 43 34 31 41 37 39 49 75 52 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 71 71 47 31 27 24 23 27 25 22 34 64 39 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 78 62 38 36 29 26 30 32 37 45 71 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 22 0 0 0 0 0 0 0 0 0 11 52 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 15 16 8 0 0 0 0 40 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 8 0 0 0 0 0 0 0 0 0 4 13 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 10 30 31 24 18 2 0 0 118 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 4 0 0 0 0 0 7 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 26 2 0 0 0 0 0 0 0 0 16 73 DATE OF START AND END FREEZING START = 5 DEC. END = 8 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1973 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.3 8.9 11.4 17.8 24.0 29.8 30.4 28.0 23.2 18.2 11.6 4.2 17.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.2 2.3 4.8 11.3 16.4 21.8 22.7 20.8 15.8 10.3 4.6 -1.9 10.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.9 15.5 18.0 24.3 31.5 37.7 38.1 35.2 30.5 26.2 18.7 10.4 24.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.1 13.2 13.2 13.0 15.1 15.9 15.4 14.4 14.7 15.9 14.1 12.3 14.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.85 4.53 4.93 6.01 7.54 10.70 13.74 11.86 8.02 5.68 4.27 3.09 6.93 MEAN OF MIXING RATIO AT 09 GMT. 3.66 5.10 6.14 6.15 7.41 10.70 15.31 14.99 10.73 6.17 5.02 3.94 7.94 MEAN OF MIXING RATIO AT 15 GMT. 3.34 4.89 5.75 5.92 7.32 11.98 17.83 15.23 10.22 7.21 5.21 4.02 8.24 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.0 -8.0 -4.5 4.5 12.0 18.5 18.0 16.5 9.5 2.0 -2.0 -8.0 -12.0 DAY 27 7 10 15 2 3 28 9 27 1 21 15 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.5 21.5 26.5 34.0 37.0 42.5 44.0 40.0 37.0 31.5 26.0 16.5 44.0 DAY 31 19 22 28 18 15 11 1 1 11 2 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 7.0 10.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 10.0 DAY ** 23 17 6 ** ** ** ** ** ** ** 10 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 14.0 20.0 7.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 42.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 81.0 16.7 0.0 2.4 NO. OF DAYS WITH PRECIPITATION. 0 4 3 2 0 0 0 0 0 0 0 1 10 NO. OF DAYS PRECIPITATION EQUAL 0 4 3 2 0 0 0 0 0 0 0 1 10 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 64 58 47 41 40 51 52 47 46 55 64 53 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 44 43 33 24 25 36 38 35 27 34 48 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 50 52 39 28 31 44 44 42 40 47 64 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 5 2 0 0 0 0 0 0 0 0 15 47 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 2 1 21 27 15 1 0 0 0 67 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 6 20 30 31 31 22 5 0 0 145 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 7 1 0 0 0 0 11 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 6 3 0 0 0 0 0 0 0 2 22 63 DATE OF START AND END FREEZING START = 11 NOV. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1974 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.0 1.7 12.0 17.5 24.7 28.6 29.8 26.8 23.9 14.7 11.7 4.1 16.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.4 -3.2 5.6 9.0 17.5 21.4 23.3 19.3 17.0 7.4 5.2 -0.8 9.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.4 6.6 18.4 24.8 31.9 35.9 36.2 34.2 30.8 22.0 18.2 9.1 22.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.8 9.8 12.8 15.8 14.4 14.5 12.9 14.9 13.8 14.6 13.0 9.9 12.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.12 3.64 5.51 6.26 6.77 9.21 10.87 11.05 8.14 5.21 4.61 3.60 6.50 MEAN OF MIXING RATIO AT 09 GMT. 3.63 4.62 7.26 6.78 7.09 8.95 12.02 14.33 10.25 6.37 6.42 4.66 7.70 MEAN OF MIXING RATIO AT 15 GMT. 3.40 4.41 6.74 6.80 7.56 10.02 12.81 15.70 10.25 6.46 6.25 4.38 7.90 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.5 -12.0 -5.0 -26.0 11.0 18.0 18.5 14.5 10.5 3.5 -0.5 -5.5 -26.0 DAY 7 4 6 30 12 4 13 20 30 14 29 4 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 13.0 29.0 31.5 38.0 41.5 40.5 40.0 35.5 26.0 27.0 14.5 41.5 DAY 24 14 25 21 24 27 6 22 18 28 4 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 8.0 6.5 9.0 0.0 0.0 0.0 0.0 0.0 1.0 0.0 8.0 9.0 DAY 25 19 2 12 ** ** ** ** ** 10 ** 13 MONTHLY TOTAL PRECIPITATION IN MM. 33.0 31.5 21.5 18.0 0.0 0.0 0.0 0.0 0.0 1.0 0.0 15.5 120.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 71.4 14.9 0.0 13.7 NO. OF DAYS WITH PRECIPITATION. 6 5 6 4 0 0 0 0 0 1 0 5 27 NO. OF DAYS PRECIPITATION EQUAL 6 5 6 4 0 0 0 0 0 1 0 5 27 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 81 68 54 34 38 41 51 44 48 59 70 55 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 68 52 36 22 23 31 40 34 36 46 60 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 79 62 46 29 30 36 49 41 44 57 68 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 14 11 1 1 0 0 0 0 0 0 0 3 30 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 5 16 25 9 3 0 0 0 58 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 7 24 30 31 30 22 0 0 0 144 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 2 1 0 0 0 0 5 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 18 5 1 0 0 0 0 0 0 2 20 77 DATE OF START AND END FREEZING START = 29 NOV. END = 30 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1975 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.5 6.4 12.8 16.5 22.5 28.3 30.9 28.1 24.2 16.9 10.0 6.2 17.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.3 0.7 6.9 10.0 15.7 21.0 23.2 20.6 16.5 9.9 4.0 0.8 10.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.2 12.1 18.7 23.1 29.4 35.6 38.7 35.5 31.8 23.8 16.0 11.6 23.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.5 11.4 11.8 13.1 13.7 14.6 15.5 14.9 15.3 13.9 12.0 10.8 13.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.53 3.92 5.18 7.15 9.20 9.83 10.39 10.41 8.97 5.91 4.55 4.44 6.96 MEAN OF MIXING RATIO AT 09 GMT. 4.57 4.98 6.33 8.87 10.82 11.84 12.62 12.73 10.78 7.32 5.90 5.56 8.53 MEAN OF MIXING RATIO AT 15 GMT. 4.22 4.81 5.88 8.41 10.22 12.02 12.29 12.07 10.62 7.38 5.60 5.49 8.25 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -6.0 -1.5 4.5 12.0 18.0 18.5 14.0 11.0 1.5 -3.0 -7.0 -7.0 DAY 21 15 5 4 9 9 1 23 30 22 16 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.0 20.0 25.0 30.0 36.0 39.5 41.0 41.0 38.0 30.5 24.0 20.0 41.0 DAY 5 22 24 14 30 27 4 16 10 5 27 23 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 0.0 24.0 26.0 2.0 0.0 0.0 0.0 0.0 1.0 0.6 10.0 26.0 DAY 25 ** 2 24 13 ** ** ** ** 15 29 3 MONTHLY TOTAL PRECIPITATION IN MM. 21.0 0.0 27.0 48.5 2.0 0.0 0.0 0.0 0.0 1.0 1.0 17.5 118.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 40.7 42.8 0.0 16.5 NO. OF DAYS WITH PRECIPITATION. 5 0 2 3 1 0 0 0 0 1 2 5 19 NO. OF DAYS PRECIPITATION EQUAL 5 0 2 3 1 0 0 0 0 1 0 5 17 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 2 0 0 0 0 0 0 0 1 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 69 56 64 52 37 33 43 48 51 60 85 56 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 52 42 47 38 30 28 33 35 37 48 64 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 61 48 57 43 35 31 36 40 47 57 75 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 3 0 0 0 0 0 0 0 0 0 2 9 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 2 17 27 17 0 0 0 0 63 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 2 14 30 31 28 20 3 0 0 128 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 5 2 0 0 0 0 7 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. 23 17 2 0 0 0 0 0 0 0 3 14 59 DATE OF START AND END FREEZING START = 8 NOV. END = 6 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1976 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 6.4 3.8 7.2 14.4 22.0 27.6 30.8 26.9 24.9 18.7 9.0 4.3 16.3 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.0 -1.1 1.4 6.2 13.7 19.6 22.8 18.4 16.8 11.8 3.2 -0.6 9.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.8 8.7 13.0 22.5 30.3 35.6 38.8 35.4 33.0 25.5 14.9 9.3 23.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.8 9.8 11.6 16.3 16.6 16.0 16.0 17.0 16.2 13.7 11.7 9.9 14.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.11 3.72 4.65 7.23 9.57 9.39 11.33 10.20 8.92 7.15 4.06 3.68 7.00 MEAN OF MIXING RATIO AT 09 GMT. 5.57 4.52 5.62 8.77 10.43 11.93 14.28 12.87 9.89 8.87 4.91 4.88 8.54 MEAN OF MIXING RATIO AT 15 GMT. 5.69 4.48 5.57 8.63 9.42 11.81 13.95 12.70 10.39 8.90 4.95 4.43 8.41 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.5 -7.5 -3.0 0.0 10.0 16.5 19.5 14.0 13.5 4.5 -3.5 -4.0 -7.5 DAY 10 18 4 3 12 16 29 21 15 20 18 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.5 19.0 21.5 32.0 34.5 38.5 43.0 38.5 38.0 30.0 22.0 15.0 43.0 DAY 16 10 29 18 14 1 4 4 6 15 5 15 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 8.0 18.0 6.0 2.0 2.0 1.0 0.0 0.0 0.0 2.0 15.0 18.0 DAY 23 23 21 22 12 8 22 ** ** ** 29 31 MONTHLY TOTAL PRECIPITATION IN MM. 15.5 32.5 47.3 14.0 2.0 2.0 1.0 0.0 0.0 0.0 2.0 29.0 145.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 65.6 12.4 0.7 21.3 NO. OF DAYS WITH PRECIPITATION. 3 7 8 3 1 1 1 0 0 0 1 6 31 NO. OF DAYS PRECIPITATION EQUAL 3 7 8 3 1 1 1 0 0 0 1 6 31 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 0 0 0 0 0 0 0 0 1 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 72 70 61 51 37 38 42 43 53 56 71 56 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 60 58 48 36 31 31 33 30 41 41 62 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 69 67 56 43 35 34 37 36 49 54 69 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 7 0 0 0 0 0 0 0 0 0 3 13 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 26 7 1 0 0 0 40 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 4 17 30 31 31 25 2 0 0 140 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 14 0 0 0 0 0 14 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 16 18 10 2 0 0 0 0 0 0 6 19 71 DATE OF START AND END FREEZING START = 16 NOV. END = 4 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -0.7 ***** 15.8 17.8 21.6 30.3 31.3 27.9 23.2 18.3 11.7 7.4 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -4.3 ***** 7.9 11.0 14.4 22.6 23.7 20.3 14.9 12.0 5.7 2.1 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.9 ***** 23.6 24.5 28.9 37.9 38.8 35.5 31.5 24.6 17.8 12.8 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.2 ***** 15.7 13.5 14.5 15.3 15.1 15.2 16.6 12.6 12.1 10.7 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.06 ***** 5.77 7.90 8.86 9.92 10.07 10.83 9.33 6.96 5.26 3.98 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.72 ***** 7.23 8.85 10.49 11.81 12.30 13.65 11.44 8.92 5.17 4.29 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.56 ***** 6.68 8.80 10.58 11.57 13.13 13.62 11.40 8.68 5.70 4.64 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.5 ***** 2.0 6.5 11.5 18.0 20.5 17.5 9.5 4.5 0.0 -3.0 ****** DAY 19 ** 1 21 9 1 5 27 9 24 28 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.5 ***** 29.9 33.5 33.0 42.5 42.5 42.0 36.5 33.5 22.5 21.0 ****** DAY 1 ** 21 14 25 21 11 18 1 5 13 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.0 ***** 3.0 22.5 14.0 0.0 0.0 0.0 0.0 12.0 4.0 16.0 ****** DAY 17 ** 31 1 24 ** ** ** ** 26 1 23 MONTHLY TOTAL PRECIPITATION IN MM. 40.0 ***** 5.0 41.5 16.0 0.0 0.0 0.0 0.0 21.0 4.0 19.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 30.7 39.2 0.0 30.0 NO. OF DAYS WITH PRECIPITATION. 7 *** 2 3 2 0 0 0 0 3 1 2 *** NO. OF DAYS PRECIPITATION EQUAL 7 *** 2 3 2 0 0 0 0 3 1 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 *** 0 2 1 0 0 0 0 1 0 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 *** 54 60 54 34 35 43 50 55 61 62 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 73 *** 37 45 40 27 28 35 37 45 38 44 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 *** 43 54 48 31 32 40 45 53 51 59 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 15 *** 0 0 0 0 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 *** 0 0 0 22 30 9 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 *** 0 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 5 9 30 31 30 24 7 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 9 11 2 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. 30 *** 0 0 0 0 0 0 0 0 1 9 *** DATE OF START AND END FREEZING START = 28 NOV. END = 31 JAN. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.7 7.0 11.4 19.6 24.0 28.5 29.5 27.1 23.9 19.5 9.8 7.6 17.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.7 1.4 5.0 12.5 15.9 21.0 22.8 19.3 16.0 12.6 5.4 2.5 11.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.1 12.4 17.8 26.8 32.2 36.0 36.3 34.9 31.9 26.5 14.1 12.8 24.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.8 11.0 12.8 14.3 16.3 15.0 13.5 15.6 15.9 13.9 8.7 10.3 13.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.35 4.21 4.37 5.27 6.91 7.88 7.37 6.08 6.21 5.39 5.12 4.63 5.57 MEAN OF MIXING RATIO AT 09 GMT. 4.51 5.55 5.34 4.69 7.51 8.80 7.55 6.47 7.11 5.84 5.19 5.46 6.17 MEAN OF MIXING RATIO AT 15 GMT. 4.42 5.20 5.33 5.52 7.65 9.26 7.37 7.10 7.39 5.96 5.44 5.24 6.32 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.5 -6.0 0.0 5.5 7.5 14.5 17.5 16.0 10.0 9.5 1.0 -3.5 -8.5 DAY 15 6 1 17 2 3 9 26 29 6 18 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 19.0 20.5 25.0 32.0 36.5 42.0 43.0 38.0 36.0 31.0 29.0 20.0 43.0 DAY 21 18 24 11 20 30 1 9 9 1 1 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 20.0 11.0 8.5 0.0 0.0 0.0 0.0 0.0 0.0 8.0 16.0 20.0 DAY 26 9 16 15 ** ** ** ** ** ** 10 4 MONTHLY TOTAL PRECIPITATION IN MM. 27.0 41.0 23.0 8.5 0.0 0.0 0.0 0.0 0.0 0.0 11.0 35.0 145.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 62.5 5.8 0.0 31.6 NO. OF DAYS WITH PRECIPITATION. 5 5 3 1 0 0 0 0 0 0 3 5 22 NO. OF DAYS PRECIPITATION EQUAL 5 5 3 1 0 0 0 0 0 0 3 5 22 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 2 0 0 0 0 0 0 0 0 1 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 67 71 56 37 36 32 28 27 34 38 67 70 47 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 58 58 40 21 24 22 19 17 23 25 49 55 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 68 51 30 31 26 20 23 29 33 60 64 42 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 1 0 0 0 0 0 0 0 0 0 0 8 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 4 16 24 8 2 0 0 0 54 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 7 25 30 31 31 26 2 0 0 152 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 3 0 0 0 0 0 8 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 24 13 1 0 0 0 0 0 0 0 0 11 49 DATE OF START AND END FREEZING START = 19 DEC. END = 1 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.3 7.3 9.6 20.1 20.4 28.2 30.1 25.9 23.4 20.7 10.2 5.1 17.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.3 1.4 3.5 12.6 13.2 20.6 22.4 19.0 15.9 12.6 3.0 -0.1 10.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.9 13.2 15.9 27.5 27.6 35.7 37.7 32.8 30.9 28.9 17.3 10.3 23.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.2 11.8 12.4 14.9 14.4 15.1 15.3 13.8 15.0 16.3 14.3 10.4 13.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.95 4.19 4.93 6.99 7.21 8.90 7.52 7.11 8.37 7.34 4.73 4.27 6.29 MEAN OF MIXING RATIO AT 09 GMT. 4.48 5.10 5.44 8.50 7.94 9.60 9.03 8.95 10.07 9.17 5.65 5.18 7.43 MEAN OF MIXING RATIO AT 15 GMT. 4.37 4.86 5.75 8.04 8.49 9.88 9.69 9.06 10.76 9.34 5.56 4.94 7.56 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.5 -4.5 -7.0 3.0 5.5 18.0 20.0 14.5 9.0 9.0 -2.0 -6.5 -7.0 DAY 28 19 6 30 1 18 24 30 24 28 19 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.5 19.5 25.0 36.0 33.0 40.0 43.0 38.5 37.5 35.5 28.0 17.5 43.0 DAY 24 8 26 23 28 20 8 1 10 11 4 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 2.0 5.0 6.0 15.0 0.0 0.0 0.0 0.0 0.0 0.0 12.0 16.0 DAY 12 9 23 29 9 ** ** ** ** ** ** 28 MONTHLY TOTAL PRECIPITATION IN MM. 43.0 2.0 20.0 6.0 22.0 0.0 0.0 0.0 0.0 0.0 0.0 60.0 153.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 42.5 18.3 0.0 39.2 NO. OF DAYS WITH PRECIPITATION. 4 1 6 1 3 0 0 0 0 0 0 8 23 NO. OF DAYS PRECIPITATION EQUAL 4 1 6 1 3 0 0 0 0 0 0 8 23 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 0 0 1 0 0 0 0 0 0 3 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 66 62 50 51 38 29 35 47 51 58 75 53 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 50 45 36 33 25 21 27 33 34 41 61 39 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 58 57 45 43 32 26 31 42 49 54 71 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 1 4 0 0 0 0 0 0 0 0 4 12 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 14 24 8 3 0 0 0 49 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 18 12 29 31 27 20 12 0 0 149 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 3 0 0 0 0 0 4 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 11 8 0 0 0 0 0 0 0 10 18 68 DATE OF START AND END FREEZING START = 17 NOV. END = 9 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.5 4.6 ***** 19.9 24.7 29.1 28.4 27.4 23.8 18.3 13.0 7.3 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -1.9 -0.7 ***** 12.3 16.8 21.4 20.6 19.1 15.5 11.3 6.0 1.3 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.9 9.9 ***** 27.5 32.6 36.8 36.3 35.8 32.0 25.2 20.0 13.4 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.8 10.6 ***** 15.2 15.8 15.4 15.7 16.7 16.5 13.9 14.0 12.1 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.49 3.91 ***** 6.99 7.00 6.69 8.77 8.42 6.64 6.29 5.26 3.94 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.72 5.20 ***** 8.02 7.90 8.20 10.25 11.16 8.38 7.86 6.71 4.68 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.21 4.83 ***** 8.59 7.54 7.57 10.08 10.93 8.19 7.51 5.78 4.42 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -9.5 ***** 5.0 12.0 15.0 16.5 15.0 10.0 4.0 0.0 -2.0 ****** DAY 10 4 ** 18 19 3 2 28 15 23 27 14 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 15.5 ***** 33.0 37.0 43.5 39.0 39.5 35.5 35.0 27.5 20.0 ****** DAY 3 23 ** 14 24 10 9 4 7 5 14 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 6.0 ***** 20.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 4.0 ****** DAY 23 25 ** 16 6 ** ** ** ** ** ** 12 MONTHLY TOTAL PRECIPITATION IN MM. 19.0 19.0 ***** 33.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 15.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 43.2 39.8 0.0 17.0 NO. OF DAYS WITH PRECIPITATION. 4 6 *** 4 1 0 0 0 0 0 0 4 *** NO. OF DAYS PRECIPITATION EQUAL 4 6 *** 4 1 0 0 0 0 0 0 4 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 *** 1 0 0 0 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 69 *** 48 36 26 35 38 38 48 56 63 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 62 *** 33 24 20 26 29 27 37 43 47 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 68 *** 44 28 23 30 32 34 45 50 57 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 6 *** 0 0 0 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 *** 0 2 15 15 8 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** 10 25 30 31 31 25 6 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** 0 0 7 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 17 *** 0 0 0 0 0 0 0 1 9 *** DATE OF START AND END FREEZING START = 27 NOV. END = 29 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1981 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.8 7.8 13.4 19.5 23.4 27.5 29.4 27.3 24.0 16.4 12.8 8.9 18.0 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.1 2.0 6.7 12.3 16.1 20.6 22.6 20.2 16.4 10.4 5.7 3.1 11.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.3 13.6 20.2 26.7 30.7 34.4 36.3 34.4 31.7 22.4 19.9 14.7 24.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.2 11.6 13.5 14.4 14.6 13.8 13.7 14.2 15.3 12.0 14.2 11.6 13.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.87 4.48 4.94 6.10 8.21 8.24 8.93 8.78 6.01 5.82 4.17 4.13 6.14 MEAN OF MIXING RATIO AT 09 GMT. 4.84 5.32 5.43 6.05 8.59 9.28 9.98 9.73 7.78 6.62 5.89 5.24 7.06 MEAN OF MIXING RATIO AT 15 GMT. 4.76 5.29 5.15 6.49 9.14 9.51 9.89 9.99 7.86 6.62 5.51 5.12 7.11 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.0 -4.0 0.0 -0.5 8.5 15.0 18.5 16.5 8.5 4.0 0.0 -0.5 -4.0 DAY 10 4 1 3 4 11 29 29 25 31 26 4 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.0 20.5 27.0 33.0 37.5 38.5 41.5 38.0 36.5 30.0 27.0 19.0 41.5 DAY 25 9 29 26 28 19 5 19 17 13 13 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 16.0 5.0 10.0 15.0 0.0 0.0 0.0 0.0 7.0 4.0 4.0 16.0 DAY 13 12 15 18 1 ** ** ** ** 17 22 31 MONTHLY TOTAL PRECIPITATION IN MM. 22.0 36.5 11.0 16.0 21.0 0.0 0.0 0.0 0.0 9.0 4.0 7.0 126.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 54.9 29.2 0.0 15.8 NO. OF DAYS WITH PRECIPITATION. 4 4 3 2 2 0 0 0 0 2 1 2 20 NO. OF DAYS PRECIPITATION EQUAL 4 4 3 2 2 0 0 0 0 2 1 2 20 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 0 1 1 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 68 68 53 46 48 37 35 40 35 52 51 61 50 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 53 37 27 30 25 24 26 25 37 38 48 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 66 62 43 37 39 31 28 31 31 45 47 58 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 2 0 0 0 0 0 0 0 0 0 0 2 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 2 15 22 10 2 0 0 0 51 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 10 20 26 31 31 21 1 0 0 140 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 17 9 1 1 0 0 0 0 0 0 1 1 30 DATE OF START AND END FREEZING START = 26 NOV. END = 3 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1982 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.6 3.7 ***** ***** 24.1 29.1 29.5 28.3 22.6 18.0 7.7 2.4 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -0.8 -0.9 ***** ***** 16.9 21.4 22.1 20.6 15.3 11.6 2.1 -2.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.7 8.2 15.8 ***** 31.3 36.7 36.9 36.0 29.9 24.4 13.2 6.9 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.5 9.1 ***** ***** 14.4 15.3 14.8 15.4 14.7 12.8 11.1 9.1 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.77 3.49 4.99 ***** 7.03 8.93 7.62 8.07 6.93 7.06 3.83 3.27 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.72 4.31 5.81 ***** 6.83 10.63 8.84 9.51 8.24 7.88 4.97 4.12 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.81 4.22 5.74 ***** 7.15 10.62 9.06 9.57 8.73 7.44 4.78 3.74 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -5.0 ***** ***** 7.5 15.0 17.0 13.0 12.5 2.5 -2.0 -7.0 ****** DAY 22 7 ** ** 13 1 10 26 16 27 15 10 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 16.0 22.5 ***** 38.0 41.0 43.5 43.5 33.0 30.5 17.5 14.5 ****** DAY 9 4 24 ** 20 12 31 1 12 3 1 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 12.0 8.0 ***** 5.0 0.0 0.0 0.0 0.0 2.0 0.0 9.0 ****** DAY 1 25 3 ** 29 ** ** ** ** 5 ** 15 MONTHLY TOTAL PRECIPITATION IN MM. 35.0 44.6 35.0 ***** 8.0 0.0 0.0 0.0 0.0 2.0 0.0 28.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 75.1 5.2 0.0 19.7 NO. OF DAYS WITH PRECIPITATION. 4 7 7 *** 3 0 0 0 0 1 0 5 *** NO. OF DAYS PRECIPITATION EQUAL 4 7 7 *** 3 0 0 0 0 1 0 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 0 *** 0 0 0 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 68 70 *** 38 36 31 35 41 54 59 69 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 59 50 *** 23 26 21 24 29 39 48 61 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 69 60 *** 28 30 25 28 38 46 58 66 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 3 *** *** 0 0 0 0 0 0 0 10 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 *** *** 2 17 19 13 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 0 0 0 1 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 22 30 31 31 16 2 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 2 6 9 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. 16 10 *** *** 0 0 0 0 0 0 8 22 *** DATE OF START AND END FREEZING START = 15 NOV. END = 21 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1983 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.1 6.3 8.9 16.2 24.3 29.9 31.5 30.1 24.8 17.2 13.8 5.8 17.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.3 0.5 3.2 10.5 17.4 22.5 24.2 22.5 17.7 10.1 6.9 1.0 11.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.7 12.2 14.7 21.8 31.2 37.2 38.8 37.7 32.0 24.3 20.8 10.5 24.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.0 11.7 11.5 11.3 13.8 14.7 14.6 15.2 14.3 14.2 13.9 9.5 12.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.20 3.54 4.08 6.76 6.60 6.75 6.28 7.14 5.02 4.35 4.06 3.42 5.10 MEAN OF MIXING RATIO AT 09 GMT. 4.15 4.90 4.58 6.87 6.49 7.35 7.09 7.67 6.24 5.30 5.44 4.31 5.87 MEAN OF MIXING RATIO AT 15 GMT. 3.74 4.48 4.74 6.90 6.80 7.32 6.97 7.71 6.74 4.94 5.23 4.00 5.80 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -5.0 -2.0 6.0 10.5 17.0 18.5 17.5 12.0 3.0 0.5 -5.0 -8.0 DAY 15 24 1 1 1 3 3 26 24 23 27 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 20.0 22.0 32.0 34.5 41.5 44.0 41.5 38.0 29.5 26.5 20.0 44.0 DAY 3 21 5 23 14 21 28 4 1 1 1 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 8.0 9.0 47.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 1.6 47.0 DAY 21 18 7 6 3 ** ** ** ** ** ** 20 MONTHLY TOTAL PRECIPITATION IN MM. 21.0 13.0 18.0 124.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 1.6 181.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 28.6 70.5 0.0 0.9 NO. OF DAYS WITH PRECIPITATION. 6 2 3 8 1 0 0 0 0 0 0 1 21 NO. OF DAYS PRECIPITATION EQUAL 6 2 3 8 1 0 0 0 0 0 0 1 21 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 3 0 0 0 0 0 0 0 0 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 64 58 64 36 27 21 28 28 39 46 61 45 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 52 43 43 22 18 15 18 20 26 33 50 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 60 52 52 27 21 17 21 28 31 40 56 40 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 10 3 0 0 0 0 0 0 0 0 0 6 19 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 2 23 27 21 9 0 0 0 82 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 2 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 25 29 31 31 20 0 0 0 139 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 10 13 7 0 0 0 0 30 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. 23 14 6 0 0 0 0 0 0 0 0 16 59 DATE OF START AND END FREEZING START = 15 DEC. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.1 2.0 12.9 19.1 ***** 28.2 29.7 30.1 23.3 16.0 13.3 2.3 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -1.7 -2.9 7.6 12.1 ***** 21.0 23.2 22.5 16.0 9.0 7.6 -3.1 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.8 8.0 19.0 26.0 ***** 35.5 36.2 37.6 30.6 23.0 19.0 7.6 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.5 10.9 11.4 13.9 ***** 14.5 13.0 15.1 14.6 14.0 11.4 10.7 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.88 2.88 5.74 5.19 ***** 5.70 5.89 6.31 4.90 3.81 4.62 2.74 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.74 3.90 6.14 5.79 ***** 5.93 4.98 6.28 5.57 4.53 5.45 3.53 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.65 3.80 6.13 5.68 ***** 5.94 4.96 6.52 5.44 4.59 5.31 3.38 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.0 -8.5 2.0 3.5 ***** 18.5 17.5 20.0 9.5 4.5 3.5 -9.5 ****** DAY 23 21 1 5 ** 20 9 23 28 26 17 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 21.0 24.0 33.5 ***** 37.5 38.0 39.5 36.5 29.0 24.5 12.0 ****** DAY 18 14 8 23 ** 1 27 15 2 6 3 14 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 5.0 29.0 0.0 ***** 0.0 0.0 0.0 0.0 0.0 6.0 5.0 ****** DAY 17 29 24 ** ** ** ** ** ** ** 16 7 MONTHLY TOTAL PRECIPITATION IN MM. 11.0 11.0 51.0 0.0 ***** 0.0 0.0 0.0 0.0 0.0 6.0 6.8 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 85.1 0.0 0.0 14.9 NO. OF DAYS WITH PRECIPITATION. 3 3 6 0 *** 0 0 0 0 0 1 2 *** NO. OF DAYS PRECIPITATION EQUAL 3 3 6 0 *** 0 0 0 0 0 1 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 2 0 *** 0 0 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 61 66 62 39 *** 26 22 25 29 36 54 64 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 49 55 43 26 *** 15 12 14 19 25 39 52 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 57 62 52 32 *** 18 14 17 23 33 47 58 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 9 0 0 *** 0 0 0 0 0 0 8 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 *** 18 27 29 2 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 8 *** 30 31 31 18 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. 21 15 0 0 *** 0 0 0 0 0 0 27 *** DATE OF START AND END FREEZING START = 1 DEC. END = 28 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.6 9.7 10.1 19.3 23.6 29.8 31.2 26.0 23.6 17.4 11.9 6.4 17.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.6 2.4 3.7 12.4 16.4 22.4 23.8 19.7 15.6 11.0 6.2 1.6 11.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.7 17.0 16.1 26.2 30.8 37.3 38.6 32.3 31.6 23.8 17.7 11.1 24.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.3 14.6 12.4 13.8 14.4 14.9 14.8 12.6 16.0 12.8 11.5 9.5 13.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.67 3.34 3.90 4.90 5.07 7.40 7.63 5.96 3.86 4.21 4.49 4.06 4.87 MEAN OF MIXING RATIO AT 09 GMT. 4.80 4.21 4.00 4.72 5.16 8.33 7.72 5.65 4.54 4.82 5.29 4.83 5.34 MEAN OF MIXING RATIO AT 15 GMT. 4.54 4.26 4.18 4.99 5.39 8.62 7.81 6.08 4.81 5.01 5.59 4.70 5.50 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.0 -3.0 -5.5 6.5 12.0 16.5 19.0 14.5 12.0 4.5 2.0 -3.5 -7.0 DAY 1 24 12 9 1 13 10 31 13 23 25 15 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.5 25.5 28.0 34.0 35.0 41.0 42.0 36.5 35.0 34.0 21.0 21.5 42.0 DAY 10 27 24 24 22 22 27 1 7 1 9 19 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 6.0 7.0 0.0 3.0 0.0 0.0 0.0 0.0 0.0 3.0 15.0 18.0 DAY 18 1 3 ** 17 ** ** ** ** ** 14 21 MONTHLY TOTAL PRECIPITATION IN MM. 28.0 6.0 12.0 0.0 3.0 0.0 0.0 0.0 0.0 0.0 4.0 37.0 90.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 51.1 3.3 0.0 45.6 NO. OF DAYS WITH PRECIPITATION. 4 1 4 0 1 0 0 0 0 0 2 4 16 NO. OF DAYS PRECIPITATION EQUAL 4 1 4 0 1 0 0 0 0 0 2 4 16 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 0 0 0 0 0 0 0 0 1 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 52 54 36 28 28 29 30 24 38 58 71 43 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 34 35 21 18 20 17 18 15 25 39 57 30 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 43 43 28 23 24 20 22 19 33 50 67 37 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 0 3 0 0 0 0 0 0 0 0 0 8 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 21 29 9 0 0 0 0 60 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 5 17 30 31 28 27 3 0 0 141 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 3 0 0 0 0 0 8 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 20 4 9 0 0 0 0 0 0 0 0 15 48 DATE OF START AND END FREEZING START = 6 DEC. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.6 5.4 7.3 17.0 23.9 28.2 29.3 26.8 23.6 20.8 11.6 4.3 17.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.1 1.0 2.8 11.2 17.4 21.1 22.6 20.0 16.4 14.1 5.8 -0.4 11.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.0 9.9 12.0 22.8 30.5 35.3 35.8 33.5 30.8 27.5 17.1 9.0 22.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.1 8.9 9.2 11.5 13.1 14.2 13.2 13.5 14.4 13.4 11.3 9.4 11.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.15 4.45 4.35 6.73 6.32 6.52 7.04 6.35 5.79 4.95 4.52 3.88 5.34 MEAN OF MIXING RATIO AT 09 GMT. 3.71 5.40 4.73 6.91 6.17 6.20 6.17 6.53 6.02 5.93 4.88 4.70 5.61 MEAN OF MIXING RATIO AT 15 GMT. 3.63 4.71 4.86 7.12 6.47 6.34 6.67 6.87 6.65 6.06 5.28 4.37 5.75 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -3.5 -2.5 4.0 11.0 17.5 17.0 15.0 12.5 8.0 -1.5 -6.5 -6.5 DAY 25 3 17 1 20 3 23 29 10 19 26 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 18.5 22.0 29.5 35.0 40.0 40.0 37.5 35.5 35.0 35.5 15.5 40.0 DAY 20 28 1 17 25 18 27 1 27 2 1 28 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 20.0 21.0 21.0 2.0 0.0 0.0 0.0 0.0 0.0 7.0 15.0 21.0 DAY ** 16 16 12 5 ** ** ** ** ** 23 20 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 70.0 59.0 42.0 2.0 0.0 0.0 0.0 0.0 0.0 7.0 45.0 225.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 57.3 19.6 0.0 23.1 NO. OF DAYS WITH PRECIPITATION. 0 9 5 8 1 0 0 0 0 0 1 5 29 NO. OF DAYS PRECIPITATION EQUAL 0 9 5 8 1 0 0 0 0 0 1 5 29 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 3 3 1 0 0 0 0 0 0 0 3 10 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 63 82 68 60 36 29 29 29 33 35 56 73 49 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 42 67 51 39 21 16 16 19 20 25 41 60 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 55 70 63 46 28 19 19 24 28 33 53 68 42 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 6 0 0 0 0 0 0 0 0 0 0 6 12 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 5 16 22 10 2 0 0 0 55 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 19 29 29 30 20 8 1 0 136 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 1 0 0 0 0 0 2 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 15 11 6 0 0 0 0 0 0 0 4 14 50 DATE OF START AND END FREEZING START = 17 NOV. END = 20 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 6.2 8.1 14.2 18.3 24.3 27.7 29.6 29.6 25.9 16.0 12.8 6.6 18.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.1 1.9 8.2 11.9 17.2 20.5 23.2 23.1 18.8 10.4 6.0 0.8 11.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.6 14.3 20.1 25.0 31.5 34.8 36.1 36.1 32.9 21.6 19.5 12.7 24.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.7 12.4 11.9 13.1 14.3 14.3 12.9 13.0 14.1 11.2 13.5 11.9 12.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.08 3.74 5.53 5.80 6.44 6.47 7.85 7.76 6.12 5.11 3.75 3.60 5.44 MEAN OF MIXING RATIO AT 09 GMT. 3.31 4.38 6.47 6.17 6.96 6.81 7.19 7.32 6.41 6.03 4.95 4.42 5.87 MEAN OF MIXING RATIO AT 15 GMT. 3.90 4.87 6.46 6.49 7.51 7.20 7.81 7.75 6.97 6.41 5.27 4.58 6.27 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.0 -1.5 5.5 1.5 10.5 15.5 18.5 19.5 15.5 2.5 -1.0 -5.0 -5.0 DAY 22 8 20 1 2 23 14 10 21 30 30 2 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.5 23.0 24.5 35.0 37.5 40.0 40.5 38.5 38.5 32.0 28.5 24.0 40.5 DAY 27 28 3 19 27 5 8 25 6 3 7 24 24 HOUR MAXIMUM PRECIPITATION IN MM. 1.0 8.0 16.0 8.0 0.0 0.0 0.0 0.0 0.0 9.0 0.0 5.0 16.0 DAY 7 11 20 5 ** ** ** ** ** 27 ** 29 MONTHLY TOTAL PRECIPITATION IN MM. 1.0 14.0 40.0 15.0 0.0 0.0 0.0 0.0 0.0 9.0 0.0 6.0 85.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 64.7 17.6 0.0 17.6 NO. OF DAYS WITH PRECIPITATION. 1 2 4 3 0 0 0 0 0 1 0 2 13 NO. OF DAYS PRECIPITATION EQUAL 1 2 4 3 0 0 0 0 0 1 0 2 13 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 2 0 0 0 0 0 0 0 0 0 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 58 62 60 46 34 27 30 31 33 49 45 62 45 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 35 41 42 32 23 18 18 18 20 37 31 44 30 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 51 58 54 41 30 23 24 22 26 48 42 59 40 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 3 4 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 4 12 28 29 6 0 0 0 79 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 10 22 30 30 31 24 7 0 0 154 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 2 0 0 0 0 0 3 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 20 8 0 0 0 0 0 0 0 0 1 10 39 DATE OF START AND END FREEZING START = 30 NOV. END = 23 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.4 5.8 11.4 18.8 24.8 29.1 31.9 28.3 25.4 18.7 ***** 8.3 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -1.0 0.8 5.3 11.8 18.0 21.8 25.2 21.5 18.4 12.0 ***** 2.9 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.7 10.8 17.5 25.9 31.7 36.5 38.5 35.2 32.5 25.3 ***** 13.7 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.7 10.0 12.2 14.1 13.7 14.7 13.3 13.7 14.1 13.3 ***** 10.8 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.01 3.92 4.88 6.69 6.77 6.45 9.42 7.48 6.95 5.44 ***** 4.16 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.76 4.51 5.62 6.90 6.08 6.90 9.92 9.04 7.89 6.27 ***** 4.58 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.69 4.45 5.62 7.18 6.86 7.03 10.02 9.35 8.47 6.92 ***** 4.66 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -6.5 0.5 2.5 13.5 18.5 20.5 17.0 11.5 9.5 ***** -6.5 ****** DAY 22 7 25 4 6 6 28 28 30 5 ** 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 21.0 27.5 32.5 36.2 41.5 41.5 39.0 38.0 29.0 ***** 18.0 ****** DAY 29 24 21 23 25 16 19 5 6 21 ** 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 2.0 13.0 27.0 7.0 0.0 0.0 3.0 0.0 0.0 0.0 ***** 7.0 ****** DAY 19 25 24 28 ** ** 28 ** ** ** ** 20 MONTHLY TOTAL PRECIPITATION IN MM. 2.0 39.0 63.0 9.0 0.0 0.0 3.0 0.0 0.0 0.0 ***** 9.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 83.2 7.2 2.4 7.2 NO. OF DAYS WITH PRECIPITATION. 1 7 7 2 0 0 1 0 0 0 *** 2 *** NO. OF DAYS PRECIPITATION EQUAL 1 7 7 2 0 0 1 0 0 0 *** 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 2 0 0 0 0 0 0 0 *** 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 62 67 60 51 38 26 33 33 37 44 *** 65 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 47 55 44 31 20 17 22 24 24 29 *** 45 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 56 63 52 39 27 20 25 28 30 39 *** 56 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 2 0 0 0 0 0 0 0 0 *** 2 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 2 20 29 21 10 0 *** 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 *** 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 8 22 30 30 30 20 0 *** 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 13 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. 21 12 0 0 0 0 0 0 0 0 *** 8 *** DATE OF START AND END FREEZING START = 22 DEC. END = 28 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.5 2.4 11.8 18.1 22.2 29.3 30.9 27.7 24.7 19.8 12.2 8.0 17.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.9 -2.8 6.2 11.4 15.0 22.1 24.5 21.1 17.2 12.7 5.8 2.6 11.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.0 7.6 17.5 24.8 29.4 36.4 37.3 34.3 32.2 27.0 18.6 13.5 23.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.9 10.4 11.3 13.4 14.4 14.3 12.8 13.2 15.0 14.3 12.8 10.9 12.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.44 2.90 4.31 4.34 5.51 5.52 6.38 6.84 5.66 5.34 4.36 3.55 4.76 MEAN OF MIXING RATIO AT 09 GMT. 3.25 3.53 4.93 5.27 5.24 5.20 6.68 6.57 6.79 6.59 5.65 5.17 5.41 MEAN OF MIXING RATIO AT 15 GMT. 3.00 3.41 4.96 5.16 5.55 5.77 6.73 7.01 7.45 7.18 5.67 4.71 5.55 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.5 -6.5 -0.5 4.5 5.0 17.5 19.5 18.0 11.0 8.5 0.0 -1.0 -6.5 DAY 8 16 1 1 2 8 26 1 24 15 23 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 13.5 24.0 31.0 38.0 40.0 43.0 37.5 38.5 33.0 26.5 22.5 43.0 DAY 19 22 15 19 27 27 8 4 14 9 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.0 10.0 8.0 0.0 6.0 7.0 0.0 0.0 0.0 0.0 4.0 8.0 10.0 DAY 3 23 19 ** 8 7 ** ** ** ** 17 16 MONTHLY TOTAL PRECIPITATION IN MM. 7.8 18.3 10.0 0.0 6.0 7.0 0.0 0.0 0.0 0.0 4.0 11.0 64.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 56.3 20.3 0.0 23.4 NO. OF DAYS WITH PRECIPITATION. 3 5 2 0 1 1 0 0 0 0 1 3 16 NO. OF DAYS PRECIPITATION EQUAL 3 5 2 0 1 1 0 0 0 0 1 3 16 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 63 67 52 36 35 22 24 31 33 41 55 56 43 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 50 52 38 25 21 13 16 18 22 28 40 50 31 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 57 58 46 29 26 17 18 23 29 39 49 55 37 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 12 0 0 0 0 0 0 0 0 0 0 31 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 4 22 27 19 2 0 0 0 74 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 14 30 31 31 23 9 0 0 139 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 4 0 0 0 0 0 5 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 24 1 0 0 0 0 0 0 0 1 13 70 DATE OF START AND END FREEZING START = 23 NOV. END = 1 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.2 5.7 11.3 17.6 25.6 29.8 30.1 30.2 25.6 18.5 13.2 5.8 18.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.7 0.6 4.4 10.4 17.9 22.6 23.0 23.0 17.7 11.4 6.2 0.3 11.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.2 10.7 18.1 24.9 33.3 37.0 37.2 37.3 33.4 25.6 20.2 11.3 24.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.9 10.1 13.7 14.5 15.4 14.4 14.2 14.3 15.7 14.2 14.0 11.0 13.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.87 4.24 4.25 4.97 5.79 6.70 7.71 7.79 5.86 4.68 4.00 3.62 5.29 MEAN OF MIXING RATIO AT 09 GMT. 4.71 5.36 5.40 5.73 6.63 7.30 9.94 9.68 7.07 5.83 4.92 4.29 6.41 MEAN OF MIXING RATIO AT 15 GMT. 4.30 4.88 5.49 6.36 7.27 7.49 10.04 9.79 7.72 6.23 5.27 4.47 6.61 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.5 -2.5 -3.5 4.0 14.5 16.5 19.5 19.0 12.5 6.5 1.0 -6.0 -6.0 DAY 13 1 22 24 2 1 11 14 26 23 19 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 20.0 29.0 33.5 37.5 42.5 40.0 41.5 38.0 32.0 27.5 19.0 42.5 DAY 24 20 14 29 22 29 26 10 1 4 11 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.5 13.0 2.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18.0 18.0 DAY 1 11 26 ** ** ** ** ** ** ** ** 22 MONTHLY TOTAL PRECIPITATION IN MM. 40.0 49.0 2.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25.0 116.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 78.5 0.0 0.0 21.5 NO. OF DAYS WITH PRECIPITATION. 9 6 1 0 0 0 0 0 0 0 0 3 19 NO. OF DAYS PRECIPITATION EQUAL 9 6 1 0 0 0 0 0 0 0 0 3 19 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 0 0 0 0 0 0 0 1 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 76 57 41 31 24 30 30 30 39 47 66 46 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 64 39 28 20 17 24 23 21 27 31 49 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 69 50 37 26 21 29 28 27 35 41 60 41 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 0 0 0 0 0 0 0 0 0 0 4 9 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 2 26 28 25 3 0 0 0 84 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 24 29 31 31 27 5 0 0 150 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 2 4 0 0 0 0 13 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 16 53 DATE OF START AND END FREEZING START = 14 DEC. END = 23 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 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. 3.8 4.6 9.6 17.8 21.8 27.8 29.2 27.5 23.1 17.1 11.7 7.4 16.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.7 -0.9 4.4 11.0 14.8 20.4 21.8 19.6 15.0 10.3 5.4 2.7 10.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.3 10.1 14.8 24.6 28.8 35.1 36.6 35.3 31.1 23.9 17.9 12.1 23.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.0 11.0 10.4 13.6 14.0 14.7 14.8 15.7 16.1 13.6 12.5 9.4 12.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.77 3.72 5.54 6.15 6.59 6.78 6.75 6.05 5.76 5.83 5.06 4.70 5.56 MEAN OF MIXING RATIO AT 09 GMT. 4.96 4.63 7.26 7.85 7.54 7.43 8.24 7.64 7.73 6.50 5.71 5.27 6.73 MEAN OF MIXING RATIO AT 15 GMT. 4.51 4.72 7.12 8.01 7.94 8.02 8.85 8.07 8.21 6.61 5.62 4.85 6.88 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -7.5 -2.0 5.0 9.0 14.5 19.5 13.0 7.5 5.5 2.0 -3.5 -7.5 DAY 1 15 13 14 8 26 23 24 28 15 24 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 18.0 21.0 31.5 38.0 39.0 40.0 41.0 39.0 27.0 25.5 21.0 41.0 DAY 31 1 19 25 30 12 10 7 9 27 1 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 10.0 20.0 2.0 7.0 0.0 0.0 0.0 0.0 0.0 6.0 24.0 24.0 DAY 21 22 1 1 5 ** ** ** ** ** 16 15 MONTHLY TOTAL PRECIPITATION IN MM. 19.0 34.6 68.5 4.0 9.0 0.0 0.0 0.0 0.0 0.0 6.0 48.0 189.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 64.6 6.9 0.0 28.6 NO. OF DAYS WITH PRECIPITATION. 6 5 8 2 2 0 0 0 0 0 1 8 32 NO. OF DAYS PRECIPITATION EQUAL 6 5 8 2 2 0 0 0 0 0 1 8 32 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 3 0 0 0 0 0 0 0 0 1 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 74 73 73 53 42 31 30 28 36 48 56 70 51 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 66 56 63 39 30 19 20 20 26 32 41 55 39 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 66 71 47 37 24 25 25 32 41 50 59 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 4 0 0 0 0 0 0 0 0 0 0 8 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 16 26 9 0 0 0 0 51 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 4 12 29 31 31 20 0 0 0 127 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. 20 18 4 0 0 0 0 0 0 0 0 13 55 DATE OF START AND END FREEZING START = 18 DEC. END = 14 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 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. 2.8 5.8 7.2 16.8 19.5 28.0 28.8 26.4 22.8 16.8 12.9 5.9 16.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.2 -0.3 1.2 10.9 13.7 20.9 21.0 19.3 16.1 9.4 5.2 1.0 9.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.7 11.9 13.3 22.7 25.2 35.1 36.6 33.4 29.5 24.2 20.7 10.8 22.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.9 12.2 12.1 11.8 11.5 14.2 15.6 14.1 13.4 14.8 15.5 9.8 12.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.25 3.51 3.78 6.12 6.95 7.56 7.75 7.18 7.03 5.59 4.43 4.06 5.60 MEAN OF MIXING RATIO AT 09 GMT. 4.07 4.79 5.13 7.14 7.85 8.74 8.20 8.38 7.06 6.61 5.42 4.79 6.51 MEAN OF MIXING RATIO AT 15 GMT. 3.89 4.37 4.99 6.90 8.14 9.25 8.99 8.89 7.73 6.70 5.65 4.31 6.65 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.5 -6.5 -5.0 5.0 8.0 16.0 16.5 15.5 11.5 2.5 -3.5 -6.0 -8.5 DAY 31 17 13 6 3 2 19 26 2 18 27 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.5 22.0 23.0 29.5 33.0 40.0 38.5 36.5 36.0 29.5 25.5 15.5 40.0 DAY 3 25 30 14 23 18 4 2 25 12 1 17 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 0.0 12.0 7.0 21.0 0.0 0.0 0.0 0.0 0.0 1.0 6.0 21.0 DAY 18 ** 22 1 12 ** ** ** ** ** 16 23 MONTHLY TOTAL PRECIPITATION IN MM. 15.1 0.0 18.0 28.0 57.0 0.0 0.0 0.0 0.0 0.0 1.0 18.0 137.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 24.1 62.0 0.0 13.9 NO. OF DAYS WITH PRECIPITATION. 6 0 3 6 5 0 0 0 0 0 1 5 26 NO. OF DAYS PRECIPITATION EQUAL 6 0 3 6 5 0 0 0 0 0 1 5 26 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 3 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 66 59 60 52 50 33 32 33 38 44 48 66 48 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 51 48 41 40 24 20 25 26 33 33 54 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 65 55 56 46 48 29 26 31 34 41 42 59 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 10 4 4 0 0 0 0 0 0 0 0 2 20 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 15 14 8 0 0 0 0 37 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 7 29 31 30 15 0 0 0 112 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 0 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 24 19 14 0 0 0 0 0 0 0 4 8 69 DATE OF START AND END FREEZING START = 27 NOV. END = 27 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 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. 1.6 6.7 9.3 18.3 22.2 27.3 28.3 27.1 24.4 ***** 10.9 5.8 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -2.9 1.7 3.6 11.4 14.5 19.2 20.7 19.8 16.8 ***** 3.9 0.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.1 11.8 14.9 25.1 29.9 35.4 35.8 34.5 32.1 ***** 17.9 11.5 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.0 10.1 11.3 13.7 15.4 16.2 15.1 14.7 15.3 ***** 14.0 11.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.86 4.44 4.39 6.20 6.28 7.64 7.35 7.78 6.62 ***** 4.69 3.52 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.58 5.41 5.81 7.95 8.20 8.59 7.76 8.17 6.92 ***** 4.98 3.88 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.49 4.75 4.95 7.52 8.18 8.70 8.35 8.87 7.55 ***** 5.09 4.06 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -4.5 -1.5 6.0 10.5 13.0 18.0 17.0 12.5 ***** -2.5 -3.0 ****** DAY 17 18 16 1 4 1 11 4 28 ** 15 9 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.0 18.0 23.0 32.5 35.0 41.5 39.0 37.0 37.5 ***** 25.5 15.5 ****** DAY 29 12 8 20 20 22 5 22 14 ** 1 20 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 13.0 13.5 6.0 5.0 0.0 0.0 0.0 0.0 ***** 4.0 1.0 ****** DAY 5 5 9 28 8 ** ** ** ** ** 29 3 MONTHLY TOTAL PRECIPITATION IN MM. 8.0 41.0 25.5 15.0 6.0 0.0 0.0 0.0 0.0 ***** 7.0 1.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 72.0 20.3 0.0 7.7 NO. OF DAYS WITH PRECIPITATION. 2 8 3 3 2 0 0 0 0 *** 3 1 *** NO. OF DAYS PRECIPITATION EQUAL 2 8 3 3 2 0 0 0 0 *** 3 1 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 2 0 0 0 0 0 0 *** 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 64 68 58 48 39 33 31 35 34 *** 52 55 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 57 49 39 29 23 20 22 22 *** 36 42 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 62 55 47 37 28 26 29 29 *** 46 53 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 17 1 0 0 0 0 0 0 0 *** 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 10 12 9 1 *** 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 *** 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 4 17 30 31 31 23 *** 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 0 0 0 *** 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 *** 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 9 4 0 0 0 0 0 0 *** 9 15 *** DATE OF START AND END FREEZING START = 15 NOV. END = 22 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 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. 5.5 6.1 12.2 17.4 23.2 29.1 30.2 28.8 20.5 16.6 14.6 4.8 17.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.1 -0.5 5.5 10.0 16.2 21.5 22.6 20.8 13.0 10.3 8.3 -0.9 10.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.2 12.6 18.9 24.7 30.3 36.6 37.8 36.9 27.9 22.9 20.8 10.6 24.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.3 13.1 13.4 14.7 14.1 15.1 15.2 16.1 14.9 12.6 12.5 11.5 13.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.59 3.33 5.03 4.86 6.64 8.13 7.39 7.64 5.56 5.32 5.62 3.20 5.53 MEAN OF MIXING RATIO AT 09 GMT. 4.20 3.70 6.17 5.28 6.56 7.85 7.36 8.09 6.03 5.69 6.62 4.15 5.98 MEAN OF MIXING RATIO AT 15 GMT. 4.30 3.91 6.18 5.70 7.51 8.44 7.89 8.30 6.53 5.76 6.57 4.01 6.26 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -6.0 1.0 -1.0 12.0 16.0 17.5 17.5 7.0 5.5 3.5 -7.5 -7.5 DAY 11 5 2 5 8 7 15 30 22 11 18 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.5 22.0 25.0 36.0 35.0 41.0 41.5 41.5 34.5 30.5 26.0 22.5 41.5 DAY 4 1 8 26 16 21 8 2 1 1 5 20 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 3.0 14.0 3.0 12.0 0.0 0.0 0.0 0.0 0.0 6.0 9.0 14.0 DAY 25 25 13 19 7 ** ** ** ** ** 18 4 MONTHLY TOTAL PRECIPITATION IN MM. 14.0 3.0 42.0 3.0 18.0 0.0 0.0 0.0 0.0 0.0 10.0 13.0 103.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 57.3 20.4 0.0 22.3 NO. OF DAYS WITH PRECIPITATION. 3 1 6 1 3 0 0 0 0 0 2 2 18 NO. OF DAYS PRECIPITATION EQUAL 3 1 6 1 3 0 0 0 0 0 2 2 18 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 2 0 1 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 59 55 58 38 35 32 29 31 34 41 50 52 43 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 47 38 44 26 23 19 17 20 24 30 40 46 31 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 55 47 51 33 31 25 22 23 30 37 48 53 38 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 5 0 0 0 0 0 0 0 0 0 9 18 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 21 25 16 0 0 0 0 63 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 5 19 30 30 31 7 1 0 0 123 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 4 5 0 0 0 0 15 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 17 15 0 1 0 0 0 0 0 0 0 19 52 DATE OF START AND END FREEZING START = 6 DEC. END = 5 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 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. 5.9 6.8 11.1 17.2 22.4 28.2 32.7 29.1 ***** 18.7 13.0 4.1 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 0.1 1.5 4.8 10.7 16.1 21.2 25.4 21.3 ***** 11.9 6.1 0.3 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.7 12.1 17.4 23.7 28.7 35.2 40.0 36.9 ***** 25.6 19.9 7.9 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.6 10.6 12.6 13.0 12.6 14.0 14.6 15.6 ***** 13.7 13.8 7.6 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.41 3.93 4.68 6.28 5.98 7.58 9.25 8.49 ***** 5.32 4.67 3.83 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.32 4.50 5.61 7.50 6.08 8.32 9.44 8.84 ***** 6.01 5.25 3.94 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.19 4.35 5.72 7.53 6.65 8.97 9.65 8.81 ***** 5.74 5.57 3.92 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.5 -4.5 -2.5 5.0 12.0 15.0 21.0 17.0 ***** 3.0 -4.0 -3.0 ****** DAY 9 26 7 1 24 1 22 9 ** 21 29 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 21.0 25.0 30.0 35.0 40.5 42.5 41.0 ***** 35.5 27.0 13.5 ****** DAY 17 5 26 5 6 16 15 23 ** 6 4 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.5 18.0 9.0 24.5 0.0 0.0 0.0 0.0 ***** 0.0 0.0 9.5 ****** DAY 2 6 18 26 ** ** ** ** ** ** ** 26 MONTHLY TOTAL PRECIPITATION IN MM. 5.5 20.0 18.0 46.5 0.0 0.0 0.0 0.0 ***** 0.0 0.0 23.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 38.3 41.0 0.0 20.7 NO. OF DAYS WITH PRECIPITATION. 1 2 3 5 0 0 0 0 *** 0 0 5 *** NO. OF DAYS PRECIPITATION EQUAL 1 2 3 5 0 0 0 0 *** 0 0 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 2 0 0 0 0 *** 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 57 59 53 50 33 31 28 32 *** 37 45 65 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 47 47 42 40 23 22 19 21 *** 27 33 56 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 53 53 49 47 29 28 22 25 *** 29 41 61 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 *** 0 1 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 18 31 20 *** 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 *** 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 8 29 31 31 *** 9 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 18 2 *** 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. 18 9 9 0 0 0 0 0 *** 0 5 13 *** DATE OF START AND END FREEZING START = 26 NOV. END = 9 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 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. 2.6 6.9 10.2 17.7 23.9 28.5 29.1 28.1 27.7 17.9 9.4 7.3 17.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.4 1.9 5.6 10.6 17.2 21.9 21.9 21.3 20.5 11.6 3.6 1.4 11.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.7 11.9 14.8 24.2 30.7 35.1 36.4 34.9 34.9 24.4 15.4 13.1 23.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.1 10.0 9.1 13.6 13.5 13.2 14.5 13.6 14.4 12.8 11.8 11.7 12.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.35 4.09 5.36 5.93 6.49 7.09 7.11 7.15 7.41 5.89 3.93 3.88 5.64 MEAN OF MIXING RATIO AT 09 GMT. 3.57 4.98 6.18 6.50 6.64 7.17 8.47 7.22 7.57 5.87 4.41 4.03 6.05 MEAN OF MIXING RATIO AT 15 GMT. 3.60 4.74 5.78 6.76 7.21 7.51 8.80 7.58 7.75 6.67 4.48 4.18 6.25 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.0 -2.0 2.0 2.5 12.0 16.0 20.0 17.0 17.0 6.0 -6.0 -4.0 -7.0 DAY 17 15 1 5 9 17 1 20 22 22 18 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.0 21.5 22.0 30.0 36.5 40.5 39.6 39.0 39.5 29.0 21.0 19.0 40.5 DAY 7 11 31 22 30 3 9 27 8 1 7 23 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.6 21.0 6.0 0.0 7.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21.0 DAY 12 22 20 ** 21 ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 14.2 42.5 31.5 0.0 7.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 95.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 92.6 7.4 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. 3 5 8 0 1 0 0 0 0 0 0 0 17 NO. OF DAYS PRECIPITATION EQUAL 3 5 8 0 1 0 0 0 0 0 0 0 17 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 63 61 64 47 35 28 29 30 30 39 47 54 44 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 53 52 53 32 23 19 21 19 20 29 37 39 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 60 58 57 40 29 23 25 23 24 37 43 46 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 6 0 0 0 0 0 0 0 0 0 2 1 9 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 5 21 25 19 15 0 0 0 85 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 4 15 27 30 30 30 0 0 0 136 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 0 0 0 0 0 0 4 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 6 0 0 0 0 0 0 0 0 9 12 49 DATE OF START AND END FREEZING START = 13 NOV. END = 27 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 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. 6.7 5.6 10.5 16.9 22.6 30.0 31.9 29.3 24.7 20.7 10.2 6.1 17.9 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.2 -1.2 4.4 10.3 15.4 23.3 24.7 21.2 17.1 12.9 5.5 1.5 11.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.2 12.3 16.6 23.6 29.6 36.6 39.0 37.4 32.4 28.2 15.0 10.7 24.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.0 13.5 12.2 13.3 14.2 13.3 14.3 16.2 15.3 15.3 9.5 9.2 13.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.85 3.38 4.57 6.00 6.33 7.41 7.71 7.04 6.91 5.78 5.24 4.21 5.70 MEAN OF MIXING RATIO AT 09 GMT. 4.00 3.86 4.40 6.85 7.00 7.64 8.65 8.76 7.81 6.26 6.05 4.82 6.34 MEAN OF MIXING RATIO AT 15 GMT. 4.17 4.19 4.62 7.21 7.30 8.05 8.90 8.99 8.11 6.28 5.81 4.56 6.52 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.0 -7.5 -3.0 4.0 10.0 18.0 19.0 18.5 14.5 8.5 1.0 -2.0 -7.5 DAY 21 10 9 1 6 29 12 15 15 29 26 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.5 21.0 25.0 29.5 36.5 40.0 41.5 39.5 35.5 35.5 23.0 15.5 41.5 DAY 9 23 24 30 28 16 6 1 27 5 5 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 2.0 7.0 13.5 8.5 2.0 0.0 0.0 0.0 8.5 14.0 10.0 14.0 DAY 17 19 16 23 6 6 ** ** ** 24 14 18 MONTHLY TOTAL PRECIPITATION IN MM. 13.5 2.0 11.0 29.0 8.5 2.0 0.0 0.0 0.0 8.5 20.0 24.0 118.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 22.4 33.3 0.0 44.3 NO. OF DAYS WITH PRECIPITATION. 2 1 3 4 1 1 0 0 0 1 3 5 21 NO. OF DAYS PRECIPITATION EQUAL 2 1 3 4 1 1 0 0 0 1 3 5 21 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 1 0 0 0 0 0 0 1 1 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 57 54 53 48 38 29 28 29 35 36 59 62 44 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 42 40 35 36 26 19 19 20 24 27 51 55 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 50 50 42 44 31 22 22 24 29 31 56 58 38 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 11 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 3 27 29 17 0 0 0 0 76 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 11 29 30 30 26 10 0 0 136 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 14 0 0 0 0 0 16 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. 10 16 4 0 0 0 0 0 0 0 0 10 40 DATE OF START AND END FREEZING START = 20 DEC. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 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. 4.1 5.6 11.7 19.9 23.6 26.7 30.8 29.3 27.2 19.8 14.4 10.5 18.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.5 0.7 5.6 11.7 17.1 19.8 24.0 22.7 20.2 12.7 7.3 3.8 12.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.8 10.6 17.8 27.8 30.1 33.6 37.5 36.0 34.3 26.7 21.6 17.3 25.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.3 9.9 12.1 16.1 13.0 13.8 13.5 13.3 14.1 14.0 14.3 13.5 13.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.49 3.53 4.53 5.42 6.82 7.00 7.20 7.22 7.28 5.86 4.62 3.86 5.57 MEAN OF MIXING RATIO AT 09 GMT. 4.12 4.41 5.39 6.92 6.53 7.00 8.09 8.13 7.84 6.25 5.30 4.22 6.18 MEAN OF MIXING RATIO AT 15 GMT. 3.85 4.37 5.26 7.14 6.98 7.58 8.34 8.63 8.20 6.76 5.71 4.23 6.42 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.5 -3.0 0.0 5.0 9.0 17.0 20.0 18.0 16.0 7.0 4.5 -1.0 -3.5 DAY 10 17 1 6 3 7 25 27 24 26 25 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 19.0 28.0 35.0 37.0 38.5 45.0 43.0 39.0 33.5 27.0 22.0 45.0 DAY 25 7 30 17 13 30 8 23 5 4 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 22.0 2.0 8.0 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22.0 DAY 6 12 2 7 15 ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 19.0 34.0 6.0 15.0 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 75.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 78.1 21.9 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. 5 3 3 3 1 0 0 0 0 0 0 0 15 NO. OF DAYS PRECIPITATION EQUAL 5 3 3 3 1 0 0 0 0 0 0 0 15 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 0 0 0 0 0 0 0 0 0 0 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 61 58 50 40 34 30 26 28 31 41 44 43 41 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 50 40 29 24 20 19 21 22 27 31 33 31 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 56 57 45 35 28 25 22 25 26 34 38 38 36 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 6 13 28 25 11 0 0 0 83 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 11 19 27 31 29 30 8 0 0 155 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 7 2 0 0 0 0 9 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 19 16 1 0 0 0 0 0 0 0 0 1 37 DATE OF START AND END FREEZING START = 20 DEC. END = 1 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 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. 4.5 10.0 11.3 17.6 24.1 30.2 30.1 28.8 24.9 19.7 11.3 7.5 18.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.2 4.1 6.1 11.0 16.8 22.0 23.3 22.0 16.8 12.2 5.4 2.0 11.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.3 15.9 16.6 24.1 31.5 38.4 37.0 35.7 32.9 27.3 17.3 13.1 24.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.5 11.8 10.5 13.1 14.7 16.4 13.7 13.7 16.1 15.1 11.9 11.1 13.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.26 4.22 4.96 5.47 6.13 7.05 7.09 7.36 6.94 6.41 4.84 3.50 5.60 MEAN OF MIXING RATIO AT 09 GMT. 3.80 4.81 5.39 6.39 7.04 9.17 8.36 8.49 8.76 6.67 5.64 3.94 6.54 MEAN OF MIXING RATIO AT 15 GMT. 3.72 5.13 5.33 6.62 7.51 9.78 8.84 8.92 9.19 6.92 5.66 3.95 6.80 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -1.0 1.5 5.0 12.0 19.0 19.0 18.0 10.0 8.5 2.0 -3.0 -5.0 DAY 3 1 19 12 6 18 14 23 30 27 15 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.5 25.0 24.0 28.5 38.0 43.0 43.0 38.5 38.0 32.5 25.0 16.5 43.0 DAY 15 27 12 14 20 29 8 30 15 12 2 19 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.5 11.0 21.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21.0 DAY 25 6 2 ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 29.5 30.0 67.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 126.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 100.0 0.0 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. 8 6 9 0 0 0 0 0 0 0 0 0 23 NO. OF DAYS PRECIPITATION EQUAL 8 6 9 0 0 0 0 0 0 0 0 0 23 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 3 0 0 0 0 0 0 0 0 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 55 51 56 43 33 29 28 31 34 38 51 49 42 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 49 41 45 32 24 20 21 22 26 28 43 39 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 53 49 50 38 28 25 25 26 32 33 50 45 38 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 0 0 0 0 0 0 0 0 0 0 0 4 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 3 22 24 21 4 0 0 0 74 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 22 29 31 31 25 8 0 0 146 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 7 0 0 0 0 0 15 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 18 2 0 0 0 0 0 0 0 0 0 6 26 DATE OF START AND END FREEZING START = 4 DEC. END = 3 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 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. 4.9 6.3 11.9 21.1 26.8 28.2 28.4 27.6 25.7 18.3 9.5 6.1 17.9 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.1 0.5 4.5 13.2 19.3 20.6 21.8 19.4 17.9 11.4 3.6 1.4 11.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.5 12.0 19.2 29.0 34.4 35.8 35.1 35.7 33.6 25.3 15.5 10.8 24.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.4 11.5 14.7 15.8 15.1 15.2 13.3 16.3 15.7 13.9 11.9 9.4 13.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.21 3.69 4.19 5.22 6.61 6.31 5.79 6.48 6.37 4.82 3.69 3.99 5.03 MEAN OF MIXING RATIO AT 09 GMT. 3.63 4.27 5.16 6.36 6.88 6.71 6.70 6.70 7.58 5.89 4.62 4.74 5.77 MEAN OF MIXING RATIO AT 15 GMT. 3.77 4.06 5.10 6.45 7.21 7.45 7.21 7.35 7.89 5.79 4.07 4.17 5.88 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -5.0 -2.5 7.0 15.0 14.0 17.0 2.1 13.4 8.0 -4.0 -5.0 -8.0 DAY 13 9 4 1 14 14 20 8 27 25 18 14 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 18.0 29.5 34.5 37.5 39.5 39.0 37.5 37.5 30.0 23.5 15.0 39.5 DAY 1 24 25 16 8 29 9 1 6 1 4 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 1.0 6.5 7.0 DAY 30 15 ** ** ** ** ** ** ** 1 9 6 MONTHLY TOTAL PRECIPITATION IN MM. 14.0 12.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.0 1.0 28.0 59.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.1 0.0 0.0 55.9 NO. OF DAYS WITH PRECIPITATION. 3 4 0 0 0 0 0 0 0 2 1 7 17 NO. OF DAYS PRECIPITATION EQUAL 3 4 0 0 0 0 0 0 0 2 1 7 17 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 53 53 44 32 28 26 24 27 34 39 48 63 39 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 45 45 35 25 19 18 18 17 23 28 39 54 31 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 52 48 41 28 23 22 22 21 27 34 43 57 35 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 2 0 0 0 0 0 0 0 0 1 1 8 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 11 17 23 15 5 0 0 0 72 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 16 31 29 31 31 29 2 0 0 169 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 15 16 6 0 0 0 0 0 0 0 6 9 52 DATE OF START AND END FREEZING START = 13 NOV. END = 18 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.1 6.9 13.4 21.5 26.7 29.5 30.8 28.7 25.1 19.9 12.4 8.2 18.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.8 1.0 6.0 14.4 20.1 22.5 24.2 21.5 17.9 13.0 5.8 3.3 12.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.9 12.8 20.7 28.6 33.4 36.6 37.5 36.0 32.3 26.7 18.9 13.1 25.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.7 11.8 14.7 14.2 13.3 14.1 13.3 14.5 14.3 13.7 13.1 9.8 13.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.24 3.46 4.47 5.53 6.00 6.03 5.97 6.33 5.25 5.10 4.11 5.30 5.07 MEAN OF MIXING RATIO AT 09 GMT. 3.86 4.50 6.29 5.90 6.23 6.72 5.82 6.21 5.49 5.36 4.46 6.30 5.60 MEAN OF MIXING RATIO AT 15 GMT. 3.32 3.83 5.07 5.77 6.70 6.52 5.58 6.36 5.37 5.00 4.16 5.95 5.30 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.0 -7.0 0.5 9.5 15.0 15.0 16.5 17.0 12.5 7.5 -1.0 -2.0 -7.0 DAY 29 24 20 19 2 24 31 1 21 28 21 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.0 20.0 28.5 34.0 39.5 41.5 41.5 40.5 38.0 33.0 26.0 20.0 41.5 DAY 15 21 26 26 17 29 14 27 8 1 7 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 4.0 11.5 0.0 1.0 0.0 0.0 0.0 0.0 0.0 2.0 11.0 11.5 DAY ** 19 26 ** 4 ** ** ** ** ** 24 14 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 5.0 13.5 0.0 1.5 0.0 0.0 0.0 0.0 0.0 3.5 23.5 47.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 39.4 3.2 0.0 57.4 NO. OF DAYS WITH PRECIPITATION. 0 2 2 0 2 0 0 0 0 0 3 7 16 NO. OF DAYS PRECIPITATION EQUAL 0 2 2 0 1 0 0 0 0 0 2 6 13 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 0 0 0 0 0 0 0 1 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 57 56 52 34 28 23 23 27 29 39 50 81 42 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 49 45 41 22 19 17 14 16 17 25 31 64 30 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 55 51 45 27 22 17 14 18 21 30 40 75 35 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 2 0 0 0 0 0 0 0 0 0 0 7 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 10 21 28 23 9 0 0 0 92 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 9 29 30 31 31 24 6 0 0 160 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 9 2 0 0 0 0 17 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 12 0 0 0 0 0 0 0 0 4 2 36 DATE OF START AND END FREEZING START = 20 NOV. END = 24 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 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. 5.5 8.3 14.4 18.2 24.5 29.2 29.5 30.1 25.8 21.9 11.5 4.0 18.6 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.3 1.2 6.1 11.0 16.7 21.9 22.9 22.7 18.1 14.8 5.5 -0.8 11.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.7 15.4 22.7 25.4 32.3 36.5 36.2 37.5 33.4 28.9 17.4 8.9 25.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.4 14.2 16.6 14.4 15.6 14.6 13.3 14.8 15.3 14.1 11.9 9.7 13.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.78 3.79 3.89 7.00 6.55 5.96 6.75 6.61 4.44 5.09 4.44 3.92 5.18 MEAN OF MIXING RATIO AT 09 GMT. 4.20 4.11 4.44 7.27 6.16 5.87 6.67 6.28 4.80 5.83 4.42 4.18 5.35 MEAN OF MIXING RATIO AT 15 GMT. 4.12 4.12 4.28 7.10 6.54 6.10 6.52 6.33 4.82 5.38 4.58 3.99 5.32 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.5 -5.0 0.0 5.5 12.0 18.0 19.0 14.0 12.0 11.0 -1.0 -11.0 -11.0 DAY 15 3 11 6 1 9 5 15 30 21 24 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.0 21.5 29.0 32.5 39.0 41.5 41.0 41.0 37.5 33.5 27.0 15.0 41.5 DAY 8 27 28 19 30 14 19 18 12 4 12 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.5 7.5 1.0 11.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5 13.0 13.0 DAY 11 21 22 13 ** ** ** ** ** ** 15 11 MONTHLY TOTAL PRECIPITATION IN MM. 22.5 16.0 1.5 14.5 0.0 0.0 0.0 0.0 0.0 0.0 3.0 23.0 80.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 49.7 18.0 0.0 32.3 NO. OF DAYS WITH PRECIPITATION. 5 4 2 4 0 0 0 0 0 0 3 5 23 NO. OF DAYS PRECIPITATION EQUAL 5 4 1 3 0 0 0 0 0 0 2 4 19 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 1 0 0 0 0 0 0 0 1 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 67 62 43 56 36 24 27 26 25 37 55 79 45 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 50 37 26 37 21 15 17 15 14 22 33 57 29 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 61 47 34 42 25 17 18 17 18 29 46 70 35 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 1 0 0 0 0 0 0 0 0 0 4 10 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 3 18 24 25 8 0 0 0 78 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 6 24 30 31 31 27 12 0 0 161 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 1 4 0 0 0 0 11 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 14 9 1 0 0 0 0 0 0 0 4 19 47 DATE OF START AND END FREEZING START = 19 NOV. END = 11 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 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. 5.8 8.0 11.8 19.7 21.9 28.9 32.5 28.6 24.2 20.8 9.7 4.3 18.0 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.5 1.7 5.3 12.8 15.1 21.6 24.9 21.7 16.9 13.1 3.1 -1.1 11.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.2 14.3 18.3 26.6 28.6 36.1 40.1 35.4 31.5 28.4 16.4 9.8 24.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.7 12.6 13.0 13.8 13.5 14.5 15.2 13.7 14.6 15.3 13.3 10.9 13.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.72 3.99 4.61 6.63 5.96 6.51 7.91 6.58 5.22 4.66 3.23 3.58 5.22 MEAN OF MIXING RATIO AT 09 GMT. 4.13 4.27 4.64 6.00 4.66 6.33 7.79 6.06 5.17 4.80 3.39 4.47 5.14 MEAN OF MIXING RATIO AT 15 GMT. 4.08 4.57 4.95 6.15 5.12 6.35 7.68 6.05 5.22 4.77 3.43 4.08 5.20 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.5 -2.0 -4.0 3.5 7.0 14.5 20.5 17.0 8.0 9.5 -3.0 -11.0 -11.0 DAY 1 13 3 19 2 8 14 30 29 1 24 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.5 21.0 27.5 34.5 34.0 40.0 43.5 43.0 36.5 35.0 26.0 20.5 43.5 DAY 7 26 21 28 17 24 31 1 19 4 1 20 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.0 3.0 33.0 4.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 7.0 33.0 DAY 24 6 13 23 30 ** ** ** ** ** ** 6 MONTHLY TOTAL PRECIPITATION IN MM. 39.0 7.5 44.0 7.5 2.0 0.0 0.0 0.0 0.0 0.0 0.0 18.0 118.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 76.7 8.1 0.0 15.3 NO. OF DAYS WITH PRECIPITATION. 5 6 5 4 3 0 0 0 0 0 0 4 27 NO. OF DAYS PRECIPITATION EQUAL 5 3 4 4 1 0 0 0 0 0 0 4 21 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 0 0 0 0 0 0 0 0 0 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 70 58 51 37 28 28 28 30 33 47 71 46 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 50 45 37 29 18 17 17 16 17 19 27 57 29 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 58 47 35 23 18 17 18 22 26 39 66 36 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 1 0 0 0 0 0 0 0 0 6 7 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 20 30 20 3 0 0 0 74 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 9 13 29 31 31 21 10 0 0 144 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 19 2 0 0 0 0 22 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 15 10 4 0 0 0 0 0 0 0 10 16 55 DATE OF START AND END FREEZING START = 16 NOV. END = 5 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE PERIOD 1970 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. 3.8 5.9 11.3 18.2 23.4 28.7 30.1 28.1 24.2 18.4 11.7 5.9 17.5 SD OF MEAN DAILY TEMPERATURE IN C. 1.87 2.41 2.10 1.49 1.73 0.94 1.19 1.34 1.44 1.65 1.65 1.95 1.65 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.3 0.3 5.1 11.3 16.3 21.4 23.0 20.8 16.7 11.5 5.4 0.7 10.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.9 11.6 17.4 25.1 30.6 36.1 37.3 35.4 31.7 25.4 18.0 11.2 24.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.2 11.3 12.4 13.8 14.3 14.7 14.3 14.7 15.0 13.9 12.7 10.5 13.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.39 3.77 4.73 6.05 6.79 7.47 7.96 7.60 6.37 5.42 4.50 3.84 5.65 MEAN OF MIXING RATIO AT 09 GMT. 4.14 4.59 5.56 6.70 7.18 8.15 8.77 8.49 7.33 6.18 5.24 4.55 6.40 MEAN OF MIXING RATIO AT 15 GMT. 4.00 4.43 5.44 6.77 7.43 8.45 9.04 8.75 7.60 6.33 5.28 4.40 6.49 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.0 -17.0 -7.0 -26.0 5.0 13.0 16.5 2.1 7.0 1.5 -6.0 -12.5 -26.0 YEAR - DAY 73-27 72- 5 79- 6 74-30 89- 2 93- 1 80- 2 0- 8 94-22 75-22 96-18 72-28 74-30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.0 25.5 30.0 36.0 41.0 43.5 45.0 43.5 39.5 35.5 35.5 24.0 45.0 YEAR - DAY 2- 8 85-27 71-15 79-23 71-28 80-10 98- 8 82- 1 96- 8 79-11 86- 1 87-24 98- 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.0 22.0 33.0 47.0 21.0 7.0 3.0 0.0 0.0 12.0 14.0 24.0 47.0 YEAR - DAY 72-31 98-12 3-13 83- 6 92-12 89- 7 88-28 **-** **-** 77-26 97-14 91-15 83- 6 MONTHLY TOTAL PRECIPITATION IN MM. 19.5 21.6 25.8 17.6 6.5 0.3 0.1 0.0 0.0 1.7 2.9 18.5 114.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 58.5 21.4 0.1 20.0 NO. OF DAYS WITH PRECIPITATION. 4 4 4 2 1 0 0 0 0 0 1 4 20 NO. OF DAYS PRECIPITATION EQUAL 4 4 4 2 1 0 0 0 0 0 1 4 20 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 0 0 0 0 0 0 0 0 1 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 67 65 58 48 38 30 30 33 35 42 53 66 47 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 51 43 33 25 21 21 22 24 29 38 52 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 59 51 40 31 25 24 26 30 37 48 60 41 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 4 0 0 0 0 0 0 0 0 0 3 14 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 3 18 25 16 3 0 0 0 65 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 6 18 29 31 30 22 4 0 0 140 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 5 1 0 0 0 0 9 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 21 13 3 0 0 0 0 0 0 0 3 13 53 DATE OF START AND END FREEZING START = 8 NOV. END = 30 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ARASK LATITUDE 33 42 N DATA PROCESSING CENTER LONGITUDE 57 23 E ELEVATION 1240 MET. MEAN AND EXTREMES FOR THE PERIOD 1970 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. 4.9 7.2 12.6 20.1 25.6 31.2 32.4 30.4 26.3 20.1 13.2 7.1 19.2 AVERAGE DEW POINT TEMPERATURE. IN C. -2.2 -0.9 1.9 5.0 6.4 8.1 9.1 8.3 6.1 3.8 1.3 -0.9 3.8 AVERAGE OF MIXING RATIO IN G/KG 3.84 4.26 5.24 6.50 7.13 8.02 8.59 8.27 7.10 5.97 5.00 4.26 6.18 AVERAGE OF VAPOUR PRESSURE HPA 5.35 5.93 7.30 9.08 9.97 11.22 12.01 11.57 9.93 8.35 6.98 5.93 8.64 AVERAGE OF SATURATION DEFICIT IN HPA 3.68 4.87 8.21 15.66 24.23 35.44 37.71 32.95 25.59 16.25 8.94 4.65 18.18 AVERAGE RELATIVE HUMIDITY IN PERCENT 62 58 51 40 32 25 25 27 29 36 46 59 41 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 70 67 60 49 39 31 31 33 35 43 54 67 48 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 54 50 42 32 25 20 20 22 23 29 38 51 34 NO. OF DAYS PRECIPITATION EQUAL 2 2 2 1 1 0 0 0 0 0 0 2 10 OR MORE THAN 5 MM.