Station Name: ZAHEDAN WMO Station Number: 40856 National I.D. Number: Country: IRAN, ISLAMIC REPUBLIC OF WMO Region: REGION II - ASIA Latitude: 29d 28m N Longitude: 060d 53m E Elevation: 1370 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 MEANDLY (Statistic 06): Mean Daily Value SD_DLY (Statistic 08): Standard Deviation of Mean Daily Value MNDLYMX (Statistic 09): Mean Daily Maximum Value MNDLYMI (Statistic 10): Mean Daily Minimum Value -------------------------------------------------- byr: 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 Statistic: MEAN MEANDLY SD_DLY MNDLYMX MNDLYMI Month -------------------------------------------------- Jan 6.4 6.8 1.95 14.0 -0.5 Feb 9.2 9.5 2.30 16.5 2.5 Mar 14.5 14.7 1.80 21.9 7.4 Apr 20.0 19.8 1.62 27.5 12.1 May 24.7 24.2 1.24 32.5 15.9 Jun 28.3 27.4 0.96 36.2 18.6 Jul 29.3 28.4 0.85 37.0 19.8 Aug 27.1 26.4 1.32 35.6 17.2 Sep 22.7 22.3 1.25 32.3 12.4 Oct 17.8 17.9 1.82 27.7 8.1 Nov 11.9 12.4 1.68 21.7 3.1 Dec 7.9 8.4 1.82 16.3 0.5 Annual 18.3 18.2 1.55 26.6 9.8 Ann-NCDC 18.3 18.2 NA 26.6 9.8 -------------------------------------------------- Element 02: Maximum Dry Bulb Temperature (deg C) MAX_VAL (Statistic 04): Maximum Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MAX_VAL DATEMAX Month -------------------------- Jan 27.0 196631 Feb 28.0 196128 Mar 32.2 199014 Apr 37.0 197328 May 40.4 198829 Jun 43.0 196106 Jul 42.0 197001 Aug 43.0 198201 Sep 40.0 198309 Oct 36.0 198005 Nov 30.2 198708 Dec 28.0 197809 Annual 43.0 NA Ann-NCDC NA NA -------------------------- Element 03: Minimum Dry Bulb Temperature (deg C) MIN_VAL (Statistic 05): Minimum Value DATEMIN (Statistic 14): Date (Year/Day) of Occurrence of Minimum Daily Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MIN_VAL DATEMIN Month -------------------------- Jan -22.0 197306 Feb -14.0 197103 Mar -7.0 197906 Apr 0.0 198901 May 1.4 198902 Jun 11.0 196110 Jul 12.0 196604 Aug 8.0 197228 Sep 2.0 196229 Oct -4.0 196130 Nov -11.0 196229 Dec -16.0 197228 Annual -22.0 NA Ann-NCDC NA NA -------------------------- Element 05: Dew Point Temperature (deg C) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan -3.5 Feb -2.2 Mar 0.0 Apr 2.4 May 3.8 Jun 3.9 Jul 4.3 Aug 3.3 Sep 0.1 Oct -1.0 Nov -3.0 Dec -3.5 Annual 0.4 Ann-NCDC .4 ------------------ Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 19.3 Feb 21.1 Mar 13.6 Apr 9.5 May 3.9 Jun 0.4 Jul 0.8 Aug 0.9 Sep 0.2 Oct 1.8 Nov 3.4 Dec 7.2 Annual 82.1 Ann-NCDC 82.1 ------------------ Element 08: Maximum 24-Hour Precipitation (mm) MAX_VAL (Statistic 04): Maximum Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MAX_VAL DATEMAX Month -------------------------- Jan 41.0 196406 Feb 32.0 196915 Mar 26.0 198531 Apr 20.0 196914 May 11.0 196313 Jun 7.0 197228 Jul 10.0 198828 Aug 10.0 198325 Sep 2.0 196622 Oct 14.0 197612 Nov 42.0 196908 Dec 23.0 196809 Annual 42.0 NA Ann-NCDC NA NA -------------------------- Element 11: Relative Humidity (%) MEAN (Statistic 01): Mean Value MNDLYMX (Statistic 09): Mean Daily Maximum Value MNDLYMI (Statistic 10): Mean Daily Minimum Value ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: MEAN MNDLYMX MNDLYMI Month ---------------------------------- Jan 54.0 76.0 33.0 Feb 50.0 73.0 30.0 Mar 42.0 64.0 24.0 Apr 36.0 54.0 21.0 May 29.0 44.0 17.0 Jun 24.0 36.0 14.0 Jul 23.0 35.0 14.0 Aug 24.0 37.0 14.0 Sep 25.0 39.0 14.0 Oct 31.0 47.0 17.0 Nov 40.0 59.0 22.0 Dec 49.0 69.0 29.0 Annual 35.0 53.0 21.0 Ann-NCDC 35.6 52.8 20.8 ---------------------------------- Element 12: Sea Level Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1019.6 Feb 1016.3 Mar 1012.0 Apr 1007.9 May 1004.3 Jun 998.4 Jul 995.4 Aug 998.5 Sep 1006.1 Oct 1013.7 Nov 1018.6 Dec 1019.8 Annual 1009.2 Ann-NCDC 1009.2 ------------------ Element 13: Station Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 865.2 Feb 863.8 Mar 862.7 Apr 861.8 May 860.9 Jun 857.4 Jul 855.3 Aug 857.0 Sep 861.5 Oct 865.8 Nov 867.1 Dec 866.1 Annual 862.0 Ann-NCDC 862.0 ------------------ Element 14: Vapor Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 5.08 Feb 5.56 Mar 6.51 Apr 7.63 May 8.39 Jun 8.67 Jul 8.86 Aug 8.24 Sep 6.50 Oct 6.09 Nov 5.29 Dec 5.09 Annual 6.83 Ann-NCDC 6.8 ------------------ Element 15: Sunshine MN_#HRS (Statistic 44): Mean Number of Hours ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 208.8 Feb 199.3 Mar 221.2 Apr 235.2 May 296.2 Jun 310.2 Jul 317.9 Aug 324.5 Sep 305.4 Oct 290.2 Nov 245.6 Dec 215.2 Annual 3169.7 Ann-NCDC 3169.7 ------------------ Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value MAXGUST (Statistic 30): Maximum Gust VECTOR (Statistic 42): Vector ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: MEAN MAXGUST VECTOR Month ---------------------------------- Jan 3.4 41.2 1.0 Feb 4.1 30.9 1.3 Mar 4.5 33.5 1.8 Apr 4.1 41.2 1.2 May 3.3 23.2 1.3 Jun 3.5 23.2 2.6 Jul 3.6 20.1 2.9 Aug 3.1 20.1 2.4 Sep 2.6 15.4 2.0 Oct 2.2 20.6 .9 Nov 2.1 32.9 .2 Dec 3.0 30.9 1.0 Annual 3.3 41.2 .6 Ann-NCDC 3.3 NA NA ---------------------------------- Element 17: Wind Direction (degrees) MAXGUST (Statistic 30): Maximum Gust PREVAIL (Statistic 41): Prevailing VECTOR (Statistic 42): Vector ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: MAXGUST PREVAIL VECTOR Month ---------------------------------- Jan 220.0 360.0 190.0 Feb 230.0 360.0 209.0 Mar 220.0 225.0 221.0 Apr 220.0 360.0 240.0 May 210.0 360.0 354.0 Jun 350.0 360.0 8.0 Jul 360.0 360.0 4.0 Aug 30.0 360.0 2.0 Sep 360.0 360.0 6.0 Oct 210.0 360.0 356.0 Nov 200.0 360.0 2.0 Dec 210.0 360.0 187.0 Annual 220.0 360.0 340.0 Ann-NCDC NA NA NA ---------------------------------- Element 17: Wind Direction (degrees) Qualifier: 41: Prevailing MEAN% (Statistic 57): Mean Percent ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 12.4 Feb 14.5 Mar 17.5 Apr 15.7 May 24.1 Jun 31.6 Jul 33.2 Aug 29.3 Sep 27.4 Oct 21.4 Nov 15.4 Dec 11.3 Annual 20.9 Ann-NCDC NA ------------------ Element 18: Wind Steadiness (unitless) MEAN% (Statistic 57): Mean Percent ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 28.4 Feb 31.6 Mar 39.8 Apr 30.4 May 38.5 Jun 75.0 Jul 80.0 Aug 78.3 Sep 76.0 Oct 42.9 Nov 7.3 Dec 33.9 Annual 18.7 Ann-NCDC NA ------------------ Element 48: Calm Winds MEAN% (Statistic 57): Mean Percent ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 47.0 Feb 41.3 Mar 35.5 Apr 37.5 May 41.7 Jun 41.5 Jul 40.1 Aug 46.2 Sep 51.6 Oct 57.1 Nov 59.4 Dec 50.9 Annual 45.8 Ann-NCDC NA ------------------ Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 0.1 Feb 0.5 Mar 0.8 Apr 1.3 May 1.4 Jun 0.0 Jul 0.2 Aug 0.1 Sep 0.1 Oct 0.6 Nov 0.2 Dec 0.2 Annual 5.5 Ann-NCDC 5.5 ------------------ Element 56: Number Days with Snowfall (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 0.7 Feb 0.4 Mar 0.1 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 0.3 Annual 1.5 Ann-NCDC 1.5 ------------------ Element 62: Number Days with Dust (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 4.3 Feb 5.6 Mar 8.6 Apr 7.4 May 6.6 Jun 8.9 Jul 11.6 Aug 9.3 Sep 4.8 Oct 2.4 Nov 2.2 Dec 3.9 Annual 75.6 Ann-NCDC 75.6 ------------------ Element 85: Number Days Minimum Temperature LE Threshold (count) Qualifier: 0.0 deg C MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 19.1 Feb 10.4 Mar 2.7 Apr 0.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 1.2 Nov 8.8 Dec 16.6 Annual 58.8 Ann-NCDC 58.8 ------------------ Element 95: Number Days with Precipitation GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 1.0 mm Qualifier: 5.0 mm Qualifier: 10.0 mm ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Qualifier: 1.0 5.0 10.0 Month ---------------------------------- Jan 2.9 1.2 0.6 Feb 3.4 1.4 0.9 Mar 3.1 0.9 0.3 Apr 2.3 0.6 0.3 May 1.0 0.2 0.1 Jun 0.1 0.0 0.0 Jul 0.2 0.1 0.0 Aug 0.1 0.1 0.0 Sep 0.1 0.0 0.0 Oct 0.3 0.1 0.1 Nov 0.8 0.2 0.0 Dec 1.6 0.5 0.2 Annual 15.9 5.3 2.5 Ann-NCDC 15.9 5.3 2.5 ---------------------------------- Element BT: Number Days with Occurrence of Rain (count) Statistic 15: Mean Monthly Value Qualifier: ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 4.3 Feb 4.5 Mar 4.2 Apr 4.2 May 2.4 Jun 0.3 Jul 0.4 Aug 0.2 Sep 0.3 Oct 0.9 Nov 1.3 Dec 2.8 Annual 25.8 Ann-NCDC 25.8 ------------------