Station Name: TIMEHRI WMO Station Number: 81002 National I.D. Number: Country: GUYANA WMO Region: REGION III - SOUTH AMERICA Latitude: 06d 30m N Longitude: 058d 15m W Elevation: 30 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 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 24.5 29.5 21.2 Feb 24.7 29.9 20.9 Mar 25.1 30.3 21.4 Apr 25.5 30.6 22.0 May 25.6 30.3 22.4 Jun 25.4 30.0 22.4 Jul 25.4 30.5 22.0 Aug 25.8 31.3 22.2 Sep 26.1 31.8 22.1 Oct 26.0 31.9 22.2 Nov 25.8 30.9 22.2 Dec 25.1 29.7 21.7 Annual NA NA NA Ann-NCDC 25.4 30.6 21.9 ---------------------------------- Element 04: Wet Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 22.8 Feb 22.6 Mar 22.9 Apr 23.5 May 24.0 Jun 23.9 Jul 23.7 Aug 23.9 Sep 24.0 Oct 24.1 Nov 23.9 Dec 23.4 Annual NA Ann-NCDC 23.6 ------------------ Element 05: Dew Point Temperature (deg C) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 22.1 Feb 21.7 Mar 22.0 Apr 22.7 May 23.4 Jun 23.3 Jul 23.0 Aug 23.2 Sep 23.0 Oct 23.4 Nov 23.2 Dec 22.7 Annual NA Ann-NCDC 22.8 ------------------ Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 207.3 Feb 102.2 Mar 134.0 Apr 172.0 May 316.7 Jun 337.3 Jul 286.0 Aug 218.6 Sep 132.0 Oct 136.6 Nov 173.7 Dec 233.4 Annual NA Ann-NCDC 2449.8 ------------------ 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 86.0 99.0 54.0 Feb 84.0 99.0 50.0 Mar 83.0 99.0 50.0 Apr 85.0 99.0 50.0 May 88.0 99.0 53.0 Jun 88.0 99.0 54.0 Jul 87.0 99.0 54.0 Aug 85.0 99.0 52.0 Sep 85.0 99.0 48.0 Oct 85.0 99.0 50.0 Nov 85.0 99.0 52.0 Dec 87.0 99.0 55.0 Annual NA NA NA Ann-NCDC 85.7 99.0 51.8 ---------------------------------- Element 12: Sea Level Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1012.4 Feb 1013.0 Mar 1012.5 Apr 1012.0 May 1012.4 Jun 1013.0 Jul 1013.7 Aug 1012.8 Sep 1012.0 Oct 1011.1 Nov 1011.1 Dec 1010.7 Annual NA Ann-NCDC 1012.2 ------------------ Element 14: Vapor Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 26.6 Feb 26.0 Mar 26.4 Apr 27.6 May 28.7 Jun 28.6 Jul 28.1 Aug 28.4 Sep 28.7 Oct 28.7 Nov 28.4 Dec 27.6 Annual NA Ann-NCDC 27.8 ------------------ Element 20: Sky Cover (Cloud Cover) (okta) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 5.0 Feb 5.0 Mar 5.0 Apr 5.0 May 6.0 Jun 6.0 Jul 5.0 Aug 5.0 Sep 5.0 Oct 5.0 Nov 5.0 Dec 5.0 Annual NA Ann-NCDC 5.2 ------------------ Element 95: Number Days with Precipitation GE Threshold (count) Qualifier: 1.0 mm MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 17.0 Feb 10.0 Mar 11.0 Apr 13.0 May 20.0 Jun 11.0 Jul 22.0 Aug 14.0 Sep 10.0 Oct 10.0 Nov 12.0 Dec 15.0 Annual NA Ann-NCDC 165.0 ------------------