Station Name: Lom WMO Station Number: 15511 National I.D. Number: Country: BULGARIA WMO Region: REGION VI - EUROPE Latitude: 43d 49m N Longitude: 023d 15m E Elevation: 33 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 MAX_VAL (Statistic 04): Maximum Value MIN_VAL (Statistic 05): Minimum Value ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: MEAN MAX_VAL MIN_VAL Month ---------------------------------- Jan -.9 17.0 -20.6 Feb 1.3 21.8 -16.0 Mar 6.2 28.6 -14.2 Apr 12.4 33.5 -.4 May 17.4 36.7 3.5 Jun 21.1 34.6 7.4 Jul 22.6 38.6 11.0 Aug 22.0 37.6 8.8 Sep 18.2 37.6 .2 Oct 11.9 31.0 -4.4 Nov 6.1 24.4 -12.1 Dec 1.4 19.7 -15.9 Annual 11.6 38.6 -20.6 Ann-NCDC 11.6 NA NA ---------------------------------- Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2.0 Feb 4.4 Mar 10.5 Apr 17.6 May 22.6 Jun 26.1 Jul 28.4 Aug 27.8 Sep 24.0 Oct 17.0 Nov 9.6 Dec 4.3 Annual 16.2 Ann-NCDC 16.2 ------------------ Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan -3.7 Feb -1.3 Mar 2.1 Apr 7.6 May 12.4 Jun 15.6 Jul 17.0 Aug 16.5 Sep 11.3 Oct 7.6 Nov 3.0 Dec 1.2 Annual 7.4 Ann-NCDC 7.4 ------------------ Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 38.0 Feb 43.0 Mar 45.0 Apr 49.0 May 58.0 Jun 67.0 Jul 40.0 Aug 34.0 Sep 34.0 Oct 37.0 Nov 51.0 Dec 47.0 Annual 542.0 Ann-NCDC 543.0 ------------------ 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 80.0 96.0 58.0 Feb 79.0 95.0 58.0 Mar 74.0 95.0 50.0 Apr 70.0 91.0 50.0 May 71.0 92.0 54.0 Jun 72.0 91.0 57.0 Jul 70.0 89.0 55.0 Aug 70.0 87.0 57.0 Sep 73.0 90.0 57.0 Oct 78.0 94.0 58.0 Nov 81.0 97.0 56.0 Dec 82.0 96.0 58.0 Annual 75.0 93.0 56.0 Ann-NCDC 75.0 92.8 55.7 ---------------------------------- Element 12: Sea Level Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1021.6 Feb 1019.6 Mar 1017.8 Apr 1013.8 May 1014.7 Jun 1014.2 Jul 1014.5 Aug 1015.3 Sep 1019.2 Oct 1020.9 Nov 1020.1 Dec 1020.6 Annual 1017.7 Ann-NCDC 1017.7 ------------------ Element 14: Vapor Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 4.7 Feb 5.4 Mar 6.9 Apr 9.9 May 14.1 Jun 17.5 Jul 19.0 Aug 18.4 Sep 17.6 Oct 10.9 Nov 7.8 Dec 5.1 Annual 11.5 Ann-NCDC 11.4 ------------------ Element 15: Sunshine MN_#HRS (Statistic 44): Mean Number of Hours ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 64.0 Feb 78.0 Mar 128.0 Apr 180.0 May 232.0 Jun 268.0 Jul 303.0 Aug 283.0 Sep 216.0 Oct 148.0 Nov 86.0 Dec 67.0 Annual 2031.0 Ann-NCDC 2053.0 ------------------ Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2.3 Feb 2.1 Mar 2.2 Apr 2.3 May 1.9 Jun 2.3 Jul 2.3 Aug 1.8 Sep 1.7 Oct 1.5 Nov 1.7 Dec 1.9 Annual 2.0 Ann-NCDC 2.0 ------------------ Element 20: Sky Cover (Cloud Cover) (okta) MEAN (Statistic 01): Mean Value MEAN% (Statistic 57): Mean Percent -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN MEAN% Month -------------------------- Jan 5.4 68.0 Feb 5.4 68.0 Mar 4.9 61.0 Apr 4.2 53.0 May 3.9 49.0 Jun 3.4 42.0 Jul 2.4 30.0 Aug 2.2 28.0 Sep 2.7 34.0 Oct 3.8 48.0 Nov 5.0 63.0 Dec 5.4 68.0 Annual 4.1 51.0 Ann-NCDC 4.1 51.0 -------------------------- Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan NA Feb NA Mar NA Apr 2.0 May 5.0 Jun 7.0 Jul 5.0 Aug 4.0 Sep 2.0 Oct NA Nov NA Dec NA Annual 25.0 Ann-NCDC NA ------------------ Element 55: Number Days with Rain Showers (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan NA Feb NA Mar 1.0 Apr 4.0 May 6.0 Jun 7.0 Jul 6.0 Aug 4.0 Sep 2.0 Oct 1.0 Nov NA Dec NA Annual 31.0 Ann-NCDC NA ------------------ Element 58: Number Days with Fog/Ice Fog (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 8.0 Feb 6.0 Mar 3.0 Apr 1.0 May 1.0 Jun NA Jul NA Aug NA Sep 1.0 Oct 7.0 Nov 6.0 Dec 8.0 Annual 41.0 Ann-NCDC NA ------------------ Element 61: Number Days with Haze/Smoke (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 18.0 Feb 17.0 Mar 15.0 Apr 4.0 May 3.0 Jun 2.0 Jul 2.0 Aug 3.0 Sep 7.0 Oct 16.0 Nov 17.0 Dec 18.0 Annual 122.0 Ann-NCDC 122.0 ------------------ Element 82: Number Days with Gale Force Winds (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2.0 Feb 1.0 Mar NA Apr 2.0 May 1.0 Jun 2.0 Jul 2.0 Aug 1.0 Sep 1.0 Oct 1.0 Nov 1.0 Dec 1.0 Annual 15.0 Ann-NCDC NA ------------------ Element BT: Number Days with Occurrence of Rain (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 4.0 Feb 5.0 Mar 8.0 Apr 9.0 May 8.0 Jun 6.0 Jul 3.0 Aug 4.0 Sep 5.0 Oct 7.0 Nov 8.0 Dec 6.0 Annual 73.0 Ann-NCDC 73.0 ------------------