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Station Name: Herat WMO Station Number: 40938 National I.D. Number: Country: AFGHANISTAN, ISLAMIC STATE OF WMO Region: REGION II - ASIA Latitude: 34d 13m N Longitude: 062d 13m E Elevation: 964 m In the following tables, byr = beginning year of normals or extremes data period eyr = ending year of normals or extremes data period NA = Not Applicable, data not submitted or not computed * = value > 0 but < units resolution Ann-NCDC = annual value computed by NCDC from monthly values provided by Members ========================================================== The normals data and climate variable descriptions are presented in these tables as provided by the WMO Member country. ========================================================== Element 01: Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value ------------------ byr: 1958 eyr: 1983 Month ------------------ Jan 2.9 Feb 5.5 Mar 10.2 Apr 16.3 May 22.1 Jun 27.2 Jul 29.8 Aug 28.0 Sep 22.9 Oct 16.1 Nov 8.8 Dec 4.7 Annual 15.8 Ann-NCDC 16.2 ------------------ Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MAX_VAL (Statistic 04): Maximum Value -------------------------- byr: 1958 1958 eyr: 1983 1983 Statistic: MEAN MAX_VAL Month -------------------------- Jan 9.1 24.4 Feb 11.9 27.6 Mar 17.9 31.0 Apr 24.0 37.8 May 29.6 39.7 Jun 35.0 44.6 Jul 36.7 46.0 Aug 35.1 42.7 Sep 31.4 39.3 Oct 25.0 37.0 Nov 17.8 30.0 Dec 12.0 26.5 Annual 23.8 46.0 Ann-NCDC 23.8 35.6 -------------------------- Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MIN_VAL (Statistic 05): Minimum Value -------------------------- byr: 1958 1959 eyr: 1983 1983 Statistic: MEAN MIN_VAL Month -------------------------- Jan -2.9 -26.7 Feb -0.6 -20.5 Mar 3.8 -13.3 Apr 9.1 -2.3 May 13.3 0.8 Jun 18.2 9.7 Jul 21.2 14.7 Aug 19.2 8.4 Sep 13.2 1.3 Oct 7.4 -5.6 Nov 1.0 -12.8 Dec -1.4 -22.2 Annual 8.4 -26.7 Ann-NCDC 8.5 -5.7 -------------------------- Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1959 eyr: 1983 Month ------------------ Jan 51.6 Feb 44.8 Mar 55.1 Apr 29.2 May 9.8 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 1.7 Nov 10.9 Dec 35.8 Annual 19.9 Ann-NCDC 238.9 ------------------ Element 10: Snow Depth (cm) MAX_DLY (Statistic 11): Maximum Daily Value ------------------ byr: 1958 eyr: 1983 Month ------------------ Jan 45.0 Feb 60.0 Mar 5.0 Apr 0.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 6.0 Dec 15.0 Annual 60.0 Ann-NCDC NA ------------------ Element 11: Relative Humidity (%) MEAN (Statistic 01): Mean Value MAX_VAL (Statistic 04): Maximum Value MIN_VAL (Statistic 05): Minimum Value ---------------------------------- byr: 1959 1958 1958 eyr: 1983 1983 1983 Statistic: MEAN MAX_VAL MIN_VAL Month ---------------------------------- Jan 72.0 100.0 10.0 Feb 69.0 100.0 10.0 Mar 62.0 100.0 9.0 Apr 56.0 100.0 7.0 May 45.0 100.0 8.0 Jun 34.0 94.0 6.0 Jul 30.0 98.0 6.0 Aug 30.0 87.0 5.0 Sep 34.0 97.0 4.0 Oct 42.0 100.0 5.0 Nov 55.0 100.0 5.0 Dec 67.0 100.0 6.0 Annual 50.0 100.0 4.0 Ann-NCDC 49.7 NA NA ---------------------------------- Element 13: Station Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1959 eyr: 1983 Month ------------------ Jan 909.0 Feb 907.1 Mar 905.4 Apr 903.7 May 903.1 Jun 899.0 Jul 896.4 Aug 898.2 Sep 903.1 Oct 908.0 Nov 910.1 Dec 909.5 Annual 904.3 Ann-NCDC 904.4 ------------------ Element 14: Vapor Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1958 eyr: 1983 Month ------------------ Jan 5.2 Feb 5.8 Mar 7.7 Apr 9.9 May 10.8 Jun 11.7 Jul 12.8 Aug 11.1 Sep 9.0 Oct 7.6 Nov 5.7 Dec 5.4 Annual 8.8 Ann-NCDC 8.6 ------------------ Element 15: Sunshine MN_#HRS (Statistic 44): Mean Number of Hours ------------------ byr: 1958 eyr: 1983 Month ------------------ Jan 149.3 Feb 153.5 Mar 202.5 Apr 235.7 May 329.6 Jun 362.6 Jul 378.6 Aug 344.8 Sep 323.2 Oct 274.0 Nov 235.0 Dec 143.1 Annual 253.8 Ann-NCDC 3131.9 ------------------ Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value MAXGUST (Statistic 30): Maximum Gust -------------------------- byr: 1958 1958 eyr: 1983 1983 Statistic: MEAN MAXGUST Month -------------------------- Jan 3.0 24.0 Feb 3.0 34.0 Mar 4.0 25.0 Apr 3.0 26.0 May 4.0 27.0 Jun 4.0 28.0 Jul 6.0 28.0 Aug 6.0 25.0 Sep 4.0 22.0 Oct 3.0 18.0 Nov 3.0 22.0 Dec 3.0 26.0 Annual 4.0 34.0 Ann-NCDC 3.8 NA -------------------------- Element 17: Wind Direction (degrees) MAXGUST (Statistic 30): Maximum Gust ------------------ byr: 1958 eyr: 1983 Month ------------------ Jan 270.0 Feb 90.0 Mar 180.0 Apr 180.0 May 270.0 Jun 270.0 Jul 360.0 Aug 360.0 Sep 360.0 Oct 360.0 Nov 135.0 Dec 180.0 Annual 90.0 Ann-NCDC NA ------------------ Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1958 eyr: 1983 Month ------------------ Jan 0.0 Feb 1.0 Mar 2.0 Apr 3.0 May 1.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 0.0 Dec 0.0 Annual 7.0 Ann-NCDC 7.0 ------------------ Element 56: Number Days with Snowfall (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1958 eyr: 1983 Month ------------------ Jan 2.0 Feb 2.0 Mar 1.0 Apr 0.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 0.0 Dec 1.0 Annual 6.0 Ann-NCDC 6.0 ------------------ Element BT: Number Days with Occurrence of Rain (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1958 eyr: 1983 Month ------------------ Jan 6.0 Feb 8.0 Mar 8.0 Apr 7.0 May 2.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 1.0 Nov 3.0 Dec 5.0 Annual 41.0 Ann-NCDC 40.0 ------------------