Station Name: Lanzhou WMO Station Number: 52889 National I.D. Number: Country: CHINA WMO Region: REGION II - ASIA Latitude: 36d 03m N Longitude: 103d 53m E Elevation: 1517 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 -6.1 Feb -2.0 Mar 5.0 Apr 11.7 May 16.8 Jun 20.1 Jul 22.1 Aug 21.0 Sep 15.7 Oct 9.7 Nov 1.9 Dec -4.8 Annual 9.3 Ann-NCDC 9.3 ------------------ 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 1.5 17.1 Feb 5.4 19.9 Mar 12.1 27.5 Apr 19.2 31.5 May 23.9 34.7 Jun 27.1 36.8 Jul 29.0 36.8 Aug 27.9 36.6 Sep 22.0 33.0 Oct 16.6 27.4 Nov 8.9 20.3 Dec 2.3 16.2 Annual 16.3 36.8 Ann-NCDC 16.3 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 -11.3 -21.7 Feb -7.2 -17.6 Mar -.4 -11.6 Apr 5.5 -8.6 May 10.4 -.1 Jun 13.6 4.6 Jul 16.2 9.7 Aug 15.4 6.5 Sep 10.9 1.5 Oct 4.7 -7.1 Nov -2.6 -14.9 Dec -9.4 -19.7 Annual 3.8 -21.7 Ann-NCDC 3.8 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 1.1 .0 .0 .1 1.1 2.1 4.9 Feb 2.4 .0 .1 .9 2.3 4.2 9.2 Mar 8.9 .0 3.1 6.1 8.7 14.3 22.3 Apr 19.1 .9 7.0 11.7 21.2 31.2 68.3 May 38.2 1.2 17.6 27.2 40.3 55.3 124.7 Jun 36.8 11.0 19.0 30.0 35.5 49.2 109.0 Jul 57.4 14.3 35.7 42.4 58.8 76.8 142.1 Aug 75.9 7.1 40.5 54.2 81.5 117.1 155.3 Sep 46.3 8.7 25.4 42.1 54.5 63.2 92.0 Oct 24.4 2.3 5.8 14.7 22.6 47.5 60.0 Nov 4.5 .0 .0 1.2 4.0 7.1 20.8 Dec 1.1 .0 .0 .1 .7 1.7 6.4 Annual 316.0 189.2 238.8 277.6 318.9 387.8 546.7 Ann-NCDC 316.1 NA NA NA NA NA NA ------------------------------------------------------------------ Element 12: Sea Level Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 3276.6 Feb 3276.6 Mar 3276.6 Apr 3276.6 May 3276.6 Jun 3276.6 Jul 3276.6 Aug 3276.6 Sep 3276.6 Oct 3276.6 Nov 3276.6 Dec 3276.6 Annual 3276.6 Ann-NCDC NA ------------------ Element 14: Vapor Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2.1 Feb 2.6 Mar 4.1 Apr 6.1 May 9.0 Jun 12.0 Jul 15.2 Aug 15.1 Sep 12.1 Oct 8.1 Nov 4.4 Dec 2.6 Annual 7.8 Ann-NCDC 7.8 ------------------ Element 15: Sunshine MN_#HRS (Statistic 44): Mean Number of Hours ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 174.9 Feb 186.7 Mar 207.1 Apr 227.2 May 250.6 Jun 247.0 Jul 245.7 Aug 246.8 Sep 189.7 Oct 194.0 Nov 181.9 Dec 168.6 Annual 2520.3 Ann-NCDC 2520.2 ------------------ Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .3 Feb .6 Mar 1.0 Apr 1.3 May 1.3 Jun 1.2 Jul 1.1 Aug 1.0 Sep .7 Oct .6 Nov .4 Dec .3 Annual .8 Ann-NCDC 0.8 ------------------ 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 .5 Feb .9 Mar 2.3 Apr 3.6 May 5.0 Jun 5.8 Jul 8.3 Aug 7.7 Sep 7.3 Oct 4.2 Nov 1.0 Dec .4 Annual 47.1 Ann-NCDC 47.0 ------------------