Station Name: GRIGGSVILLE, IL WMO Station Number: National I.D. Number: 00113717 Country: UNITED STATES OF AMERICA WMO Region: REGION IV - NORTH & CENTRAL AMERICA Latitude: 39d 43m N Longitude: 090d 44m W Elevation: 213 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 #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN #_YEARS Month -------------------------- Jan -4.5 30 Feb -2.1 30 Mar 4.6 30 Apr 11.8 30 May 17.2 30 Jun 22.1 30 Jul 24.5 30 Aug 23.2 30 Sep 19.0 30 Oct 12.8 30 Nov 5.5 30 Dec -1.7 30 Annual 11.0 30 Ann-NCDC 11.0 NA -------------------------- Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN #_YEARS Month -------------------------- Jan .8 30 Feb 3.6 30 Mar 10.3 30 Apr 17.7 30 May 23.2 30 Jun 27.9 30 Jul 30.4 30 Aug 29.2 30 Sep 25.4 30 Oct 19.2 30 Nov 11.1 30 Dec 3.3 30 Annual 16.8 30 Ann-NCDC 16.8 NA -------------------------- Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN #_YEARS Month -------------------------- Jan -9.8 30 Feb -7.7 30 Mar -1.3 30 Apr 5.8 30 May 11.2 30 Jun 16.3 30 Jul 18.6 30 Aug 17.1 30 Sep 12.6 30 Oct 6.4 30 Nov -.1 30 Dec -6.6 30 Annual 5.2 30 Ann-NCDC 5.2 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 #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 Statistic: MEANMLY MIN_MLY QUIN20% QUIN40% QUIN60% QUIN80% MAX_MLY #_YEARS Month -------------------------------------------------------------------------- Jan 38.9 2.5 11.7 22.9 37.3 60.7 107.4 30 Feb 40.1 8.4 20.6 30.5 41.7 57.4 106.4 30 Mar 82.3 18.3 44.2 64.0 85.3 115.6 205.5 30 Apr 93.7 18.0 42.7 67.6 95.8 137.4 196.6 30 May 109.7 28.4 61.7 87.4 114.6 152.4 302.3 30 Jun 93.7 36.8 52.6 74.4 97.5 130.0 208.5 30 Jul 111.8 9.1 36.8 69.1 109.5 173.5 411.0 30 Aug 86.4 21.6 44.4 66.0 89.4 122.9 233.4 30 Sep 98.6 5.3 45.0 71.1 100.8 144.8 267.5 30 Oct 81.0 11.4 38.1 59.4 83.3 118.1 207.8 30 Nov 75.9 14.0 33.0 53.6 77.5 112.8 242.3 30 Dec 67.1 3.8 30.5 48.3 68.6 98.3 189.7 30 Annual 979.2 NA NA NA NA NA NA 30 Ann-NCDC 979.2 NA NA NA NA NA NA NA --------------------------------------------------------------------------