Station Name: DUBUQUE/MUNICIPAL, IA WMO Station Number: 72547 National I.D. Number: 00132367 Country: UNITED STATES OF AMERICA WMO Region: REGION IV - NORTH & CENTRAL AMERICA Latitude: 42d 24m N Longitude: 090d 42m W Elevation: 324 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 -8.9 30 Feb -6.0 30 Mar 1.0 30 Apr 8.7 30 May 14.8 30 Jun 19.9 30 Jul 22.4 30 Aug 21.0 30 Sep 16.4 30 Oct 10.3 30 Nov 2.4 30 Dec -5.8 30 Annual 8.0 30 Ann-NCDC 8.0 NA -------------------------- Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MAX_VAL (Statistic 04): Maximum Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------------------------------ byr: 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 Statistic: MEAN MAX_VAL DATEMAX #_YEARS Month ------------------------------------------ Jan -4.5 15.6 198931 30 Feb -1.3 16.1 198422 30 Mar 5.8 29.4 198629 30 Apr 14.3 33.9 198022 30 May 20.7 32.2 196726 30 Jun 25.8 37.8 198821 30 Jul 28.0 38.3 198831 30 Aug 26.6 37.8 198801 30 Sep 22.1 35.0 198401 30 Oct 15.8 31.1 197601 30 Nov 7.0 22.8 197803 30 Dec -1.6 17.8 197003 30 Annual 13.2 NA NA 30 Ann-NCDC 13.2 NA NA NA ------------------------------------------ Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MIN_VAL (Statistic 05): Minimum Value DATEMIN (Statistic 14): Date (Year/Day) of Occurrence of Minimum Daily Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------------------------------ byr: 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 Statistic: MEAN MIN_VAL DATEMIN #_YEARS Month ------------------------------------------ Jan -13.5 -33.3 197021 30 Feb -10.7 -32.8 197905 30 Mar -3.9 -28.9 196201 30 Apr 3.0 -11.7 197311 30 May 8.9 -4.4 196610 30 Jun 13.9 2.2 197211 30 Jul 16.7 6.7 198407 30 Aug 15.3 4.4 198628 30 Sep 10.8 -2.2 198429 30 Oct 4.7 -8.9 196226 30 Nov -2.3 -27.2 197726 30 Dec -10.0 -31.7 198324 30 Annual 2.7 NA NA 30 Ann-NCDC 2.7 NA NA NA ------------------------------------------ Element 04: Wet Bulb Temperature (deg C) SD3HRLY (Statistic 60): Standard Deviation of 3-Hourly Values MN3HRLY (Statistic 94): Mean of 3-Hourly Observations #_YEARS (Statistic 98): Number of Years used to Calculate Normal ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: SD3HRLY MN3HRLY #_YEARS Month ---------------------------------- Jan 6.2 NA 1 Feb 7.6 -6.2 2 Mar 5.3 NA 1 Apr 6.2 7.8 2 May 4.7 NA 1 Jun 2.5 NA 1 Jul 2.8 NA 1 Aug 3.2 NA 1 Sep NA NA 0 Oct NA NA 0 Nov 4.9 NA 1 Dec NA NA 0 Annual NA -60.9 0 Ann-NCDC NA NA NA ---------------------------------- Element 05: Dew Point Temperature (deg C) SD3HRLY (Statistic 60): Standard Deviation of 3-Hourly Values MN3HRLY (Statistic 94): Mean of 3-Hourly Observations #_YEARS (Statistic 98): Number of Years used to Calculate Normal ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: SD3HRLY MN3HRLY #_YEARS Month ---------------------------------- Jan 7.0 NA 1 Feb 9.5 -11.4 2 Mar 5.4 NA 1 Apr 9.9 2.2 2 May 6.2 NA 1 Jun 3.1 NA 1 Jul 3.1 NA 1 Aug 3.5 NA 1 Sep NA NA 0 Oct NA NA 0 Nov 7.8 -7.1 2 Dec NA NA 0 Annual NA -56.3 0 Ann-NCDC NA NA 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 32.0 7.9 15.7 23.9 32.8 46.0 68.6 30 Feb 33.5 5.6 14.2 23.4 34.0 49.8 75.2 30 Mar 73.4 10.4 39.9 57.4 76.2 102.9 151.4 30 Apr 94.5 20.6 53.1 75.2 98.6 131.1 195.3 30 May 108.2 24.6 59.2 84.8 112.5 151.4 239.5 30 Jun 104.9 17.8 49.0 76.5 107.7 153.2 266.4 30 Jul 102.1 25.4 51.6 77.2 105.7 146.3 310.6 30 Aug 119.1 2.0 48.0 81.0 120.1 179.1 251.5 30 Sep 118.6 1.8 32.0 66.5 112.5 188.2 392.7 30 Oct 69.3 0.0 28.2 48.3 71.1 104.9 217.9 30 Nov 68.8 9.4 29.0 47.8 69.8 102.6 270.0 30 Dec 49.8 7.6 24.4 37.1 51.3 72.1 105.2 30 Annual 974.2 NA NA NA NA NA NA 30 Ann-NCDC 974.2 NA NA NA NA NA NA NA -------------------------------------------------------------------------- Element 08: Maximum 24-Hour Precipitation (mm) MAX_DLY (Statistic 11): Maximum Daily Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: MAX_DLY DATEMAX #_YEARS Month ---------------------------------- Jan 35.3 197103 29 Feb 34.0 198122 29 Mar 52.8 197604 29 Apr 55.9 196402 29 May 90.2 196229 29 Jun 87.6 196609 29 Jul 159.5 196101 29 Aug 87.6 199017 29 Sep 224.8 196714 28 Oct 60.7 196707 28 Nov 121.7 196102 29 Dec 50.8 198202 29 Annual NA NA NA Ann-NCDC NA NA NA ---------------------------------- Element 09: Snowfall (cm) MEDIAN (Statistic 02): Median Value MAX_DLY (Statistic 11): Maximum Daily Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value MEANMLY (Statistic 15): Mean Monthly Value QUAR25% (Statistic 58): First Quartile QUAR75% (Statistic 59): Third Quartile #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------------------------------------------------------ byr: 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 Statistic: MEDIAN MAX_DLY DATEMAX MEANMLY QUAR25% QUAR75% #_YEARS Month ------------------------------------------------------------------ Jan 21.3 27.9 197913 22.4 13.5 29.0 29 Feb 19.0 25.9 197621 21.3 10.4 31.5 29 Mar 20.3 29.7 196108 21.1 5.8 33.8 29 Apr 2.5 23.9 197309 7.4 Trace 10.9 29 May .0 7.9 196611 .3 .0 .0 29 Jun .0 .0 199030 .0 .0 .0 29 Jul .0 .0 199031 .0 .0 .0 28 Aug .0 .0 199031 .0 .0 .0 28 Sep .0 .0 199030 .0 .0 .0 27 Oct .0 3.8 197619 .5 .0 Trace 27 Nov 4.6 22.6 198618 9.4 .5 16.8 29 Dec 24.1 34.8 199003 26.9 10.9 45.0 29 Annual NA NA NA 109.3 NA NA NA Ann-NCDC NA NA NA 109.3 NA NA NA ------------------------------------------------------------------ Element 11: Relative Humidity (%) MN00LST (Statistic 70): Mean of Observations at 0000 LST MN03LST (Statistic 73): Mean of Observations at 0300 LST MN06LST (Statistic 76): Mean of Observations at 0600 LST MN09LST (Statistic 79): Mean of Observations at 0900 LST MN12LST (Statistic 82): Mean of Observations at 1200 LST MN15LST (Statistic 85): Mean of Observations at 1500 LST MN18LST (Statistic 88): Mean of Observations at 1800 LST MN21LST (Statistic 91): Mean of Observations at 2100 LST MN3HRLY (Statistic 94): Mean of 3-Hourly Observations ---------------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 1990 Statistic: MN00LST MN03LST MN06LST MN09LST MN12LST MN15LST MN18LST MN21LST MN3HRLY Month ---------------------------------------------------------------------------------- Jan NA NA 75.8 73.6 67.3 65.7 71.5 74.6 NA Feb 50.8 54.1 77.0 73.4 64.8 62.4 68.8 73.3 54.6 Mar NA NA 78.8 71.7 62.4 59.4 65.2 72.9 NA Apr 15.6 17.4 76.4 64.6 55.2 51.6 55.7 66.5 50.3 May NA NA 78.0 64.5 56.0 51.9 55.8 67.6 NA Jun NA NA 81.7 67.6 58.3 55.0 59.4 NA NA Jul NA NA 84.9 70.2 59.5 56.3 61.8 72.8 NA Aug NA NA 87.3 72.5 60.9 57.0 64.9 72.1 NA Sep NA NA 87.1 74.5 61.8 58.8 69.3 81.1 NA Oct NA NA 81.6 71.2 57.9 54.6 65.9 71.0 NA Nov 27.0 28.0 81.2 76.9 65.3 62.7 72.1 75.3 62.1 Dec NA NA 80.6 79.0 71.6 70.1 76.3 78.4 NA Annual NA NA 80.9 71.6 61.8 59.3 66.0 NA NA Ann-NCDC NA NA 80.9 71.6 61.7 58.8 65.6 NA NA ---------------------------------------------------------------------------------- Element 11: Relative Humidity (%) Statistic 98: Number of Years used to Calculate Normal Qualifier: 70: Mean of Observations at 0000 LST Qualifier: 73: Mean of Observations at 0300 LST Qualifier: 76: Mean of Observations at 0600 LST Qualifier: 79: Mean of Observations at 0900 LST Qualifier: 82: Mean of Observations at 1200 LST Qualifier: 85: Mean of Observations at 1500 LST Qualifier: 88: Mean of Observations at 1800 LST Qualifier: 91: Mean of Observations at 2100 LST Qualifier: 94: Mean of 3-Hourly Observations ---------------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 1990 Qualifier: 70 73 76 79 82 85 88 91 94 Month ---------------------------------------------------------------------------------- Jan 0 0 29 29 29 28 28 14 0 Feb 1 1 29 29 29 28 28 15 1 Mar 0 0 29 29 29 29 28 15 0 Apr 1 1 29 29 29 28 28 15 1 May 0 0 29 29 29 27 27 6 0 Jun 0 0 29 29 29 27 27 0 0 Jul 0 0 29 29 29 28 27 1 0 Aug 0 0 28 28 28 27 27 1 0 Sep 0 0 28 28 28 27 27 4 0 Oct 0 0 28 28 28 25 25 7 0 Nov 2 2 29 29 29 27 27 14 2 Dec 0 0 29 29 29 27 27 14 0 Annual 0 0 28 28 28 22 22 0 0 Ann-NCDC NA NA NA NA NA NA NA NA NA ---------------------------------------------------------------------------------- Element 12: Sea Level Pressure (hPa) #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 0 Feb 0 Mar 0 Apr 0 May 0 Jun 0 Jul 0 Aug 0 Sep 0 Oct 0 Nov 0 Dec 0 Annual 0 Ann-NCDC NA ------------------ Element 16: Wind Speed (m/sec) MN3HRLY (Statistic 94): Mean of 3-Hourly Observations ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan -51.4 Feb 5.2 Mar 5.6 Apr 5.8 May 5.3 Jun -51.4 Jul 4.1 Aug 3.9 Sep 4.8 Oct 5.4 Nov 5.3 Dec 5.5 Annual -4.3 Ann-NCDC NA ------------------ Element 17: Wind Direction (degrees) Statistic 38: Frequency Qualifier: 000.0 degrees Qualifier: 022.5 degrees Qualifier: 045.0 degrees Qualifier: 067.5 degrees Qualifier: 090.0 degrees Qualifier: 112.5 degrees Qualifier: 135.0 degrees Qualifier: 157.5 degrees Qualifier: 180.0 degrees ---------------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 1990 Qualifier: 000.0 022.5 045.0 067.5 090.0 112.5 135.0 157.5 180.0 Month ---------------------------------------------------------------------------------- Jan NA NA NA NA NA NA NA NA NA Feb .033 .078 .082 .037 .048 .030 .037 .048 .108 Mar .024 .075 .085 .061 .037 .041 .041 .037 .095 Apr .030 .036 .066 .036 .049 .030 .049 .049 .056 May .025 .032 .078 .032 .049 .032 .046 .074 .106 Jun NA NA NA NA NA NA NA NA NA Jul .046 .056 .049 .046 .035 .046 .049 .042 .092 Aug .055 .055 .045 .031 .031 .041 .076 .065 .110 Sep .046 .036 .063 .033 .023 .036 .053 .050 .175 Oct .029 .048 .054 .022 .029 .029 .035 .073 .134 Nov .032 .036 .057 .025 .036 .028 .039 .064 .146 Dec .032 .039 .039 .035 .028 .050 .060 .028 .089 Annual NA NA NA NA NA NA NA NA NA Ann-NCDC NA NA NA NA NA NA NA NA NA ---------------------------------------------------------------------------------- Element 17: Wind Direction (degrees) Statistic 38: Frequency Qualifier: 202.5 degrees Qualifier: 225.0 degrees Qualifier: 247.5 degrees Qualifier: 270.0 degrees Qualifier: 292.5 degrees Qualifier: 315.0 degrees Qualifier: 337.5 degrees Qualifier: 360.0 degrees -------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 Qualifier: 202.5 225.0 247.5 270.0 292.5 315.0 337.5 360.0 Month -------------------------------------------------------------------------- Jan NA NA NA NA NA NA NA NA Feb .052 .045 .052 .071 .063 .059 .041 .115 Mar .068 .034 .061 .051 .051 .065 .092 .082 Apr .111 .049 .056 .059 .092 .098 .066 .069 May .099 .106 .049 .035 .032 .053 .060 .092 Jun NA NA NA NA NA NA NA NA Jul .109 .116 .060 .035 .053 .049 .067 .049 Aug .103 .120 .058 .034 .021 .055 .031 .069 Sep .112 .083 .036 .043 .050 .043 .056 .063 Oct .141 .086 .038 .042 .045 .042 .067 .086 Nov .085 .068 .050 .043 .043 .103 .057 .089 Dec .089 .071 .082 .074 .113 .067 .053 .050 Annual NA NA NA NA NA NA NA NA Ann-NCDC NA NA NA NA NA NA NA NA -------------------------------------------------------------------------- Element 17: Wind Direction (degrees) PREVAIL (Statistic 41): Prevailing #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: PREVAIL #_YEARS Month -------------------------- Jan 360.0 0 Feb 360.0 1 Mar 180.0 1 Apr 202.5 1 May 202.5 1 Jun 360.0 0 Jul 225.0 1 Aug 225.0 1 Sep 180.0 1 Oct 202.5 1 Nov 180.0 1 Dec 292.5 1 Annual 180.0 NA Ann-NCDC NA NA -------------------------- Element 20: Sky Cover (Cloud Cover) (okta) 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 5.3 13 Feb 4.8 14 Mar 5.3 14 Apr 5.1 14 May 4.4 14 Jun 4.3 14 Jul 4.0 14 Aug 3.7 14 Sep 4.2 14 Oct 4.3 12 Nov 5.3 12 Dec 5.2 12 Annual 4.6 NA Ann-NCDC 4.7 NA -------------------------- 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 NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov NA Dec NA Annual NA Ann-NCDC NA ------------------ Element 61: Number Days with Haze/Smoke (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan NA Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov NA Dec NA Annual NA Ann-NCDC NA ------------------ Element 63: Number Days with Blowing Dust/Sand (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan NA Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov NA Dec NA Annual NA Ann-NCDC NA ------------------ Element 83: Number Days Maximum Temperature GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 10.0 deg C Qualifier: 35.0 deg C -------------------------- byr: 1961 1961 eyr: 1990 1990 Qualifier: 10.0 35.0 Month -------------------------- Jan .5 .0 Feb 1.1 .0 Mar 8.4 .0 Apr 22.8 .0 May 30.3 .0 Jun 30.0 .2 Jul 31.0 .8 Aug 31.0 .6 Sep 30.0 * Oct 26.5 .0 Nov 10.3 .0 Dec 1.6 .0 Annual 223.5 1.6 Ann-NCDC 223.5 1.6 -------------------------- Element 85: Number Days Minimum Temperature LE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 0.0 deg C Qualifier: 10.0 deg C -------------------------- byr: 1961 1961 eyr: 1990 1990 Qualifier: 0.0 10.0 Month -------------------------- Jan 30.6 31.0 Feb 26.8 28.0 Mar 23.9 30.8 Apr 8.8 27.8 May .9 19.4 Jun .0 5.7 Jul .0 1.0 Aug .0 2.4 Sep .4 14.5 Oct 6.7 26.0 Nov 20.4 29.5 Dec 29.7 31.0 Annual 148.2 247.1 Ann-NCDC 148.2 247.1 -------------------------- 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 6.1 Feb 5.7 Mar 8.7 Apr 9.5 May 9.6 Jun 8.5 Jul 8.3 Aug 7.9 Sep 8.0 Oct 7.3 Nov 7.3 Dec 7.3 Annual 94.2 Ann-NCDC 94.2 ------------------ Element 97: Number Days with Freezing Rain/Drizzle (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan NA Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov NA Dec NA Annual NA Ann-NCDC NA ------------------ Element 98: Number Days with Blowing Snow (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan NA Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov NA Dec NA Annual NA Ann-NCDC NA ------------------ Element AA: Number Days with Rain/Drizzle (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan NA Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov NA Dec NA Annual NA Ann-NCDC NA ------------------ Element AB: Number Days with Snow/Hail (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan NA Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov NA Dec NA Annual NA Ann-NCDC NA ------------------ Element AC: Number Days with Fog/Mist (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan NA Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov NA Dec NA Annual NA Ann-NCDC NA ------------------ Element AD: Number Days with Weather Phenomena (count) #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 12 Feb 12 Mar 11 Apr 11 May 11 Jun 11 Jul 11 Aug 11 Sep 11 Oct 11 Nov 11 Dec 11 Annual NA Ann-NCDC NA ------------------