Station Name: ND'JAMENA WMO Station Number: 64700 National I.D. Number: Country: CHAD WMO Region: REGION I - AFRICA Latitude: 12d 08m N Longitude: 015d 02m E Elevation: 295 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 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 32.4 Feb 35.2 Mar 38.7 Apr 41.0 May 39.9 Jun 37.2 Jul 33.5 Aug 31.6 Sep 33.7 Oct 36.9 Nov 35.8 Dec 33.5 Annual 35.8 Ann-NCDC 35.8 ------------------ Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 14.3 Feb 16.6 Mar 21.0 Apr 24.8 May 25.8 Jun 24.7 Jul 23.1 Aug 22.4 Sep 22.7 Oct 21.8 Nov 17.8 Dec 14.8 Annual 20.8 Ann-NCDC 20.8 ------------------ Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 0.0 Feb 0.0 Mar 0.3 Apr 10.3 May 25.8 Jun 50.3 Jul 144.0 Aug 174.4 Sep 84.3 Oct 20.3 Nov 0.1 Dec 0.0 Annual 509.7 Ann-NCDC 509.8 ------------------ Element 11: Relative Humidity (%) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 29.0 Feb 23.0 Mar 21.0 Apr 28.0 May 39.0 Jun 52.0 Jul 68.0 Aug 76.0 Sep 72.0 Oct 49.0 Nov 33.0 Dec 31.0 Annual 43.0 Ann-NCDC 43.4 ------------------ Element 14: Vapor Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 7.3 Feb 6.8 Mar 7.9 Apr 12.5 May 18.0 Jun 21.8 Jul 24.7 Aug 26.2 Sep 26.2 Oct 18.7 Nov 10.3 Dec 8.4 Annual 15.7 Ann-NCDC 15.7 ------------------ Element 15: Sunshine Statistic 44: Mean Number of Hours Qualifier: 06: Mean Daily Value Qualifier: NCDC: Mean Monthly Value Computed by NCDC from Mean Daily Values Provided by Member -------------------------- byr: 1961 1961 eyr: 1990 1990 Qualifier: 06 NCDC Month -------------------------- Jan 9.6 297.6 Feb 9.9 277.2 Mar 9.1 282.1 Apr 9.1 273.0 May 9.2 285.2 Jun 8.6 258.0 Jul 6.9 213.9 Aug 6.5 201.5 Sep 7.6 228.0 Oct 9.2 285.2 Nov 10.0 300.0 Dec 9.8 303.8 Annual 8.8 3205.5 Ann-NCDC NA 3205.5 -------------------------- Element 16: Wind Speed (m/sec) Statistic 01: Mean Value Qualifier: ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2.4 Feb 2.8 Mar 2.8 Apr 2.2 May 2.4 Jun 2.6 Jul 2.0 Aug 1.8 Sep 1.8 Oct 1.8 Nov 2.1 Dec 2.1 Annual 2.2 Ann-NCDC 2.2 ------------------