Station Name: Belfast-Aldergrove WMO Station Number: 03917 National I.D. Number: Country: UNITED KINGDOM OF GREAT BRITAIN & NORTHERN IRELAND WMO Region: REGION VI - EUROPE Latitude: 54d 39m N Longitude: 006d 13m W Elevation: 68 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: 1961 eyr: 1990 Month ------------------ Jan 3.8 Feb 3.9 Mar 5.4 Apr 7.5 May 10.2 Jun 13.2 Jul 14.7 Aug 14.4 Sep 12.4 Oct 9.9 Nov 6.0 Dec 4.6 Annual 8.8 Ann-NCDC 8.8 ------------------ Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MAX_VAL (Statistic 04): Maximum Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN MAX_VAL Month -------------------------- Jan 6.5 13.2 Feb 6.8 13.9 Mar 8.8 20.2 Apr 11.5 21.8 May 14.4 24.5 Jun 17.3 27.9 Jul 18.5 28.8 Aug 18.2 27.5 Sep 15.9 23.5 Oct 13.0 21.8 Nov 8.9 16.4 Dec 7.3 14.4 Annual 12.2 28.8 Ann-NCDC 12.3 NA -------------------------- Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MIN_VAL (Statistic 05): Minimum Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN MIN_VAL Month -------------------------- Jan 1.1 -10.6 Feb 1.1 -10.3 Mar 2.0 -9.9 Apr 3.5 -5.1 May 6.1 -2.4 Jun 9.1 -1.2 Jul 10.9 2.2 Aug 10.7 2.3 Sep 9.0 -0.5 Oct 6.9 -2.9 Nov 3.1 -6.6 Dec 2.0 -11.0 Annual 5.4 -11.0 Ann-NCDC 5.5 NA -------------------------- Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value MIN_MLY (Statistic 20): Minimum Monthly Value QUIN20% (Statistic 22): First Quintile QUIN40% (Statistic 23): Second Quintile QUIN60% (Statistic 24): Third Quintile QUIN80% (Statistic 25): Fourth Quintile MAX_MLY (Statistic 26): Maximum Monthly Value ------------------------------------------------------------------ byr: 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 Statistic: MEANMLY MIN_MLY QUIN20% QUIN40% QUIN60% QUIN80% MAX_MLY Month ------------------------------------------------------------------ Jan 86.0 32.0 58.0 78.5 97.5 107.0 150.0 Feb 58.0 6.0 30.0 49.5 60.5 83.5 132.0 Mar 67.0 27.0 44.5 60.0 76.0 87.0 117.0 Apr 53.0 14.0 30.0 45.0 54.5 75.5 118.0 May 60.0 10.0 29.0 56.0 66.5 82.0 118.0 Jun 63.0 25.0 39.5 52.0 63.5 83.0 129.0 Jul 64.0 19.0 43.0 53.5 71.5 85.0 120.0 Aug 80.0 16.0 47.5 79.0 89.5 109.5 131.0 Sep 85.0 6.0 50.0 81.0 93.5 116.0 163.0 Oct 88.0 30.0 52.5 79.0 101.5 113.0 176.0 Nov 78.0 25.0 58.0 71.0 81.0 95.5 145.0 Dec 78.0 14.0 53.5 69.0 85.0 100.5 195.0 Annual 858.0 694.0 784.5 822.5 873.5 952.0 1071.0 Ann-NCDC 860.0 NA NA NA NA NA NA ------------------------------------------------------------------ Element 10: Snow Depth (cm) MN09LST (Statistic 79): Mean of Observations at 0900 LST ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 14.8 Feb 8.5 Mar 2.1 Apr 0.2 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 2.1 Dec 4.6 Annual 32.3 Ann-NCDC NA ------------------ Element 11: Relative Humidity (%) MNDLYMX (Statistic 09): Mean Daily Maximum Value MNDLYMI (Statistic 10): Mean Daily Minimum Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MNDLYMX MNDLYMI Month -------------------------- Jan 89.0 82.0 Feb 87.0 77.0 Mar 88.0 73.0 Apr 89.0 67.0 May 90.0 65.0 Jun 90.0 65.0 Jul 90.0 68.0 Aug 92.0 70.0 Sep 92.0 74.0 Oct 91.0 78.0 Nov 90.0 80.0 Dec 89.0 83.0 Annual 91.0 75.0 Ann-NCDC 89.8 73.5 -------------------------- Element 15: Sunshine MN_#HRS (Statistic 44): Mean Number of Hours ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 45.4 Feb 66.5 Mar 97.6 Apr 154.0 May 183.7 Jun 170.1 Jul 147.7 Aug 139.4 Sep 109.0 Oct 85.2 Nov 59.0 Dec 38.8 Annual 1296.4 Ann-NCDC 1296.4 ------------------ Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 5.6 Feb 5.5 Mar 5.5 Apr 4.8 May 4.7 Jun 4.5 Jul 4.5 Aug 4.4 Sep 4.8 Oct 5.1 Nov 5.0 Dec 5.2 Annual 4.9 Ann-NCDC 5.0 ------------------ Element 19: Soil Temperature (deg C) Statistic 79: Mean of Observations at 0900 LST Qualifier: 30.0 cm depth Qualifier: 100.0 cm depth -------------------------- byr: 1961 1961 eyr: 1990 1990 Qualifier: 30.0 100.0 Month -------------------------- Jan 4.6 6.9 Feb 4.4 6.2 Mar 5.6 6.4 Apr 8.0 7.3 May 11.1 9.1 Jun 14.1 11.2 Jul 15.4 12.8 Aug 15.4 13.6 Sep 13.8 13.4 Oct 11.2 12.1 Nov 7.9 10.2 Dec 5.8 8.2 Annual 9.8 9.8 Ann-NCDC NA NA -------------------------- Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 0.0 Feb 0.0 Mar 0.0 Apr 0.0 May 1.0 Jun 1.0 Jul 1.0 Aug 1.0 Sep 0.0 Oct 0.0 Nov 0.0 Dec 0.0 Annual 6.0 Ann-NCDC 4.0 ------------------ Element 53: Number Days with Hail (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1.0 Feb 1.0 Mar 3.0 Apr 2.0 May 2.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 1.0 Dec 1.0 Annual 12.0 Ann-NCDC 11.0 ------------------ Element 56: Number Days with Snowfall (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 5.0 Feb 5.0 Mar 4.0 Apr 1.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 1.0 Dec 3.0 Annual 19.0 Ann-NCDC 19.0 ------------------ Element 57: Number Days with Snow on Ground (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 3.0 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 1.0 Dec 1.0 Annual 7.0 Ann-NCDC 8.0 ------------------ Element 76: Number Days with Air Frost (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 11.0 Feb 9.0 Mar 7.0 Apr 4.0 May 1.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 1.0 Nov 6.0 Dec 8.0 Annual 46.0 Ann-NCDC 47.0 ------------------ Element 77: Number Days with Grass Frost (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 16.0 Feb 15.0 Mar 14.0 Apr 12.0 May 6.0 Jun 1.0 Jul 0.0 Aug 1.0 Sep 2.0 Oct 4.0 Nov 12.0 Dec 13.0 Annual 97.0 Ann-NCDC 96.0 ------------------ Element 95: Number Days with Precipitation GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 0.2 mm Qualifier: 1.0 mm Qualifier: 10.0 mm ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Qualifier: 0.2 1.0 10.0 Month ---------------------------------- Jan 21.0 15.0 2.0 Feb 16.0 11.0 1.0 Mar 19.0 14.0 1.0 Apr 15.0 11.0 1.0 May 16.0 13.0 1.0 Jun 15.0 12.0 1.0 Jul 17.0 11.0 1.0 Aug 18.0 13.0 2.0 Sep 18.0 13.0 2.0 Oct 19.0 14.0 3.0 Nov 19.0 13.0 2.0 Dec 20.0 14.0 2.0 Annual 215.0 155.0 20.0 Ann-NCDC 213.0 154.0 19.0 ---------------------------------- Element AK: Number Days with Sleet/Snow (count) Statistic 15: Mean Monthly Value Qualifier: ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 9.0 Feb 7.0 Mar 6.0 Apr 3.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 3.0 Dec 5.0 Annual 35.0 Ann-NCDC 33.0 ------------------