Station Name: ATHENS, GA WMO Station Number: 72311 National I.D. Number: 00090435 Country: UNITED STATES OF AMERICA WMO Region: REGION IV - NORTH & CENTRAL AMERICA Latitude: 33d 57m N Longitude: 083d 19m W Elevation: 244 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 5.4 30 Feb 7.5 30 Mar 12.0 30 Apr 16.4 30 May 20.7 30 Jun 24.7 30 Jul 26.4 30 Aug 25.8 30 Sep 22.7 30 Oct 16.8 30 Nov 11.9 30 Dec 7.3 30 Annual 16.5 30 Ann-NCDC 16.5 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 10.9 26.7 197530 30 Feb 13.5 27.2 198916 30 Mar 18.4 31.1 197410 30 Apr 23.0 33.9 198627 30 May 26.9 36.1 196219 30 Jun 30.6 39.4 198420 30 Jul 32.0 40.0 197708 30 Aug 31.2 41.7 198321 30 Sep 28.2 36.1 197216 30 Oct 23.1 33.3 198106 30 Nov 18.0 30.0 196102 30 Dec 12.8 26.1 198429 30 Annual 22.4 NA NA 30 Ann-NCDC 22.4 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 .0 -20.0 198521 30 Feb 1.5 -13.3 196725 30 Mar 5.6 -11.7 198003 30 Apr 9.9 -2.2 198701 30 May 14.5 2.8 198908 30 Jun 18.8 7.2 197201 30 Jul 20.8 12.8 196715 30 Aug 20.4 12.2 196829 30 Sep 17.2 2.2 196730 30 Oct 10.4 -2.2 197629 30 Nov 5.7 -9.4 197024 30 Dec 1.7 -16.7 196213 30 Annual 10.5 NA NA 30 Ann-NCDC 10.5 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 6.1 2.8 30 Feb 5.9 4.2 30 Mar 5.6 8.2 30 Apr 4.8 12.1 30 May 3.8 16.7 30 Jun 2.8 20.2 30 Jul 2.0 22.1 30 Aug 2.2 21.8 30 Sep 3.6 19.0 30 Oct 4.9 13.2 30 Nov 5.7 8.7 30 Dec 6.2 4.6 30 Annual 8.3 12.8 30 Ann-NCDC NA 12.8 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 8.0 -1.0 30 Feb 7.8 -.1 30 Mar 7.3 4.1 30 Apr 6.3 8.2 30 May 4.6 14.0 30 Jun 3.3 18.1 30 Jul 2.2 20.4 30 Aug 2.3 20.3 30 Sep 4.2 17.2 30 Oct 6.1 10.4 30 Nov 7.3 5.4 30 Dec 8.1 1.1 30 Annual 9.7 9.8 30 Ann-NCDC NA 9.8 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 #_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 116.8 16.3 64.0 91.9 121.4 163.3 217.4 30 Feb 112.3 19.0 59.4 86.9 116.6 158.5 234.7 30 Mar 138.7 29.2 74.9 108.5 144.3 195.1 277.6 30 Apr 101.3 18.8 49.3 75.4 104.4 146.3 242.3 30 May 111.0 10.4 51.3 80.8 113.8 162.6 247.1 30 Jun 99.8 23.1 48.0 73.9 102.9 144.8 335.5 30 Jul 124.0 42.4 70.1 98.8 129.3 172.0 267.5 30 Aug 94.0 22.1 51.1 73.7 97.8 132.1 188.7 30 Sep 85.3 15.7 35.6 59.2 86.6 127.5 261.6 30 Oct 83.3 0.0 27.2 52.3 82.8 130.0 196.3 30 Nov 93.0 32.5 55.9 76.2 97.3 126.0 175.3 30 Dec 103.9 20.6 52.3 78.5 107.2 148.6 213.9 30 Annual 1263.4 NA NA NA NA NA NA 30 Ann-NCDC 1263.4 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 77.2 196615 30 Feb 68.8 198110 30 Mar 97.0 196425 30 Apr 85.3 197913 30 May 113.8 197328 30 Jun 252.2 196704 30 Jul 104.6 196418 30 Aug 75.4 196922 30 Sep 101.6 197002 30 Oct 137.9 198901 30 Nov 73.7 197705 30 Dec 72.1 196112 30 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 Trace 18.0 198722 3.0 .0 5.1 30 Feb Trace 11.7 198923 2.0 .0 3.3 30 Mar .0 22.1 198324 1.0 .0 Trace 30 Apr .0 .0 199030 .0 .0 .0 30 May .0 .0 199031 .0 .0 .0 30 Jun .0 .0 199030 .0 .0 .0 30 Jul .0 .0 199031 .0 .0 .0 30 Aug .0 .0 199031 .0 .0 .0 30 Sep .0 .0 199030 .0 .0 .0 30 Oct .0 .0 199031 .0 .0 .0 30 Nov .0 5.6 196811 .3 .0 .0 30 Dec .0 7.6 197103 .5 .0 Trace 30 Annual NA NA NA 6.8 NA NA NA Ann-NCDC NA NA NA 6.8 NA NA NA ------------------------------------------------------------------ Element 11: Relative Humidity (%) MN01LST (Statistic 71): Mean of Observations at 0100 LST MN04LST (Statistic 74): Mean of Observations at 0400 LST MN07LST (Statistic 77): Mean of Observations at 0700 LST MN10LST (Statistic 80): Mean of Observations at 1000 LST MN13LST (Statistic 83): Mean of Observations at 1300 LST MN16LST (Statistic 86): Mean of Observations at 1600 LST MN19LST (Statistic 89): Mean of Observations at 1900 LST MN22LST (Statistic 92): Mean of Observations at 2200 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: MN01LST MN04LST MN07LST MN10LST MN13LST MN16LST MN19LST MN22LST MN3HRLY Month ---------------------------------------------------------------------------------- Jan 74.1 77.7 80.1 71.3 57.5 53.7 62.7 68.8 68.2 Feb 70.1 75.2 78.2 66.8 53.7 49.2 57.3 64.8 64.4 Mar 70.8 76.8 80.4 65.0 52.0 47.3 55.1 64.4 64.0 Apr 71.3 78.4 81.5 61.5 49.4 45.1 52.7 63.9 63.0 May 80.7 86.5 86.0 65.0 53.5 50.6 59.9 73.7 69.5 Jun 83.1 88.2 86.9 67.3 55.3 52.6 61.8 76.1 71.4 Jul 86.3 90.7 90.1 71.1 58.6 57.4 67.4 80.5 75.3 Aug 87.8 91.7 92.0 73.3 60.1 57.9 70.2 82.2 76.9 Sep 86.3 90.1 91.4 72.6 59.4 56.9 71.7 80.9 76.2 Oct 82.2 86.4 88.5 68.1 53.3 50.4 66.7 75.1 71.3 Nov 78.0 82.2 84.7 69.4 53.9 51.4 64.4 71.6 69.4 Dec 75.5 79.1 81.6 72.1 57.9 54.6 65.1 71.2 69.6 Annual 78.9 83.6 85.2 68.6 55.4 52.3 63.0 72.8 70.0 Ann-NCDC 78.8 83.6 85.1 68.6 55.4 52.3 62.9 72.8 69.9 ---------------------------------------------------------------------------------- Element 11: Relative Humidity (%) Statistic 98: Number of Years used to Calculate Normal Qualifier: 71: Mean of Observations at 0100 LST Qualifier: 74: Mean of Observations at 0400 LST Qualifier: 77: Mean of Observations at 0700 LST Qualifier: 80: Mean of Observations at 1000 LST Qualifier: 83: Mean of Observations at 1300 LST Qualifier: 86: Mean of Observations at 1600 LST Qualifier: 89: Mean of Observations at 1900 LST Qualifier: 92: Mean of Observations at 2200 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: 71 74 77 80 83 86 89 92 94 Month ---------------------------------------------------------------------------------- Jan 30 30 30 30 30 30 30 30 30 Feb 30 30 30 30 30 30 30 30 30 Mar 30 30 30 30 30 30 30 30 30 Apr 30 30 30 30 30 30 30 30 30 May 30 30 30 30 30 30 30 30 30 Jun 30 30 30 30 30 30 30 30 30 Jul 30 30 30 30 30 30 30 30 30 Aug 30 30 30 30 30 30 30 30 30 Sep 30 30 30 30 30 30 30 30 30 Oct 30 30 30 30 30 30 30 30 30 Nov 30 30 30 30 30 30 30 30 30 Dec 30 30 30 30 30 30 30 30 30 Annual 30 30 30 30 30 30 30 30 30 Ann-NCDC NA NA NA NA NA NA NA NA NA ---------------------------------------------------------------------------------- Element 12: Sea Level Pressure (hPa) MN3HRLY (Statistic 94): Mean of 3-Hourly Observations #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MN3HRLY #_YEARS Month -------------------------- Jan 1020.4 30 Feb 1018.8 30 Mar 1017.3 30 Apr 1016.5 30 May 1016.0 30 Jun 1016.1 30 Jul 1017.0 30 Aug 1017.2 30 Sep 1017.7 30 Oct 1019.1 30 Nov 1019.5 30 Dec 1020.5 30 Annual 1018.0 30 Ann-NCDC 1018.0 NA -------------------------- Element 16: Wind Speed (m/sec) MN3HRLY (Statistic 94): Mean of 3-Hourly Observations ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 3.9 Feb 4.1 Mar 4.1 Apr 3.8 May 3.3 Jun 3.1 Jul 2.9 Aug 2.7 Sep 2.9 Oct 3.1 Nov 3.4 Dec 3.8 Annual 3.4 Ann-NCDC 3.4 ------------------ 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 .060 .037 .079 .090 .048 .025 .015 .018 .039 Feb .049 .033 .078 .093 .051 .029 .023 .023 .048 Mar .043 .030 .065 .080 .056 .036 .037 .037 .060 Apr .046 .023 .046 .059 .050 .038 .039 .041 .067 May .069 .029 .063 .071 .059 .041 .039 .036 .059 Jun .082 .042 .067 .077 .063 .041 .041 .036 .054 Jul .088 .034 .058 .071 .055 .037 .036 .030 .053 Aug .118 .052 .098 .098 .064 .040 .033 .030 .047 Sep .094 .075 .145 .151 .082 .037 .029 .024 .033 Oct .075 .063 .131 .128 .068 .035 .027 .017 .028 Nov .076 .044 .093 .105 .054 .031 .027 .024 .042 Dec .064 .035 .081 .103 .049 .023 .021 .019 .044 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 .040 .053 .092 .129 .146 .073 .029 .026 Feb .040 .062 .091 .109 .139 .079 .026 .025 Mar .050 .064 .086 .102 .129 .072 .028 .024 Apr .056 .077 .113 .101 .120 .068 .032 .025 May .050 .075 .090 .085 .098 .068 .034 .034 Jun .050 .065 .088 .073 .081 .068 .034 .037 Jul .056 .085 .112 .084 .082 .057 .028 .032 Aug .043 .068 .071 .054 .063 .049 .032 .039 Sep .024 .033 .045 .044 .061 .053 .027 .044 Oct .023 .036 .056 .061 .090 .082 .035 .044 Nov .034 .045 .083 .096 .116 .068 .029 .033 Dec .036 .060 .100 .116 .130 .068 .026 .026 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 292.5 30 Feb 292.5 30 Mar 292.5 30 Apr 292.5 30 May 292.5 30 Jun 247.5 30 Jul 247.5 30 Aug 45.0 30 Sep 67.5 30 Oct 45.0 30 Nov 292.5 30 Dec 292.5 30 Annual 292.5 NA Ann-NCDC NA NA -------------------------- Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1.1 Feb 1.5 Mar 3.5 Apr 4.3 May 6.7 Jun 8.3 Jul 11.6 Aug 8.5 Sep 3.4 Oct 1.1 Nov 1.2 Dec .7 Annual 51.9 Ann-NCDC 51.9 ------------------ Element 61: Number Days with Haze/Smoke (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 5.6 Feb 6.4 Mar 6.3 Apr 7.1 May 11.7 Jun 14.5 Jul 17.2 Aug 18.9 Sep 15.6 Oct 11.1 Nov 8.2 Dec 5.6 Annual 128.2 Ann-NCDC 128.2 ------------------ Element 63: Number Days with Blowing Dust/Sand (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .0 Feb .0 Mar .0 Apr .1 May * Jun * Jul * Aug .1 Sep .0 Oct .0 Nov .0 Dec .0 Annual .2 Ann-NCDC 0.2 ------------------ 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 17.9 .0 Feb 19.2 .0 Mar 28.8 .0 Apr 29.8 .0 May 31.0 .1 Jun 30.0 3.0 Jul 31.0 6.0 Aug 31.0 3.0 Sep 30.0 .4 Oct 30.9 .0 Nov 28.0 .0 Dec 21.0 .0 Annual 328.6 12.5 Ann-NCDC 328.6 12.5 -------------------------- 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 16.7 29.7 Feb 12.4 26.1 Mar 4.9 24.8 Apr .4 15.7 May .0 4.7 Jun .0 .2 Jul .0 .0 Aug .0 .0 Sep .0 1.2 Oct .5 14.9 Nov 5.2 23.9 Dec 13.6 28.8 Annual 53.7 170.0 Ann-NCDC 53.7 170.0 -------------------------- 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 9.3 Feb 8.3 Mar 9.3 Apr 7.3 May 7.7 Jun 7.4 Jul 9.2 Aug 7.7 Sep 5.8 Oct 5.1 Nov 7.3 Dec 8.2 Annual 92.6 Ann-NCDC 92.6 ------------------ Element 97: Number Days with Freezing Rain/Drizzle (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .1 Feb .1 Mar .0 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec .1 Annual .3 Ann-NCDC 0.3 ------------------ Element 98: Number Days with Blowing Snow (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .0 Feb .1 Mar .0 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec * Annual .1 Ann-NCDC 0.1 ------------------ Element AA: Number Days with Rain/Drizzle (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 13.4 Feb 11.8 Mar 13.4 Apr 11.0 May 12.1 Jun 12.5 Jul 15.0 Aug 13.2 Sep 10.9 Oct 8.5 Nov 11.6 Dec 12.7 Annual 146.1 Ann-NCDC 146.1 ------------------ Element AB: Number Days with Snow/Hail (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 3.3 Feb 2.2 Mar .7 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .3 Dec 1.4 Annual 7.9 Ann-NCDC 7.9 ------------------ Element AC: Number Days with Fog/Mist (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 14.7 Feb 12.4 Mar 13.5 Apr 11.6 May 15.7 Jun 16.6 Jul 20.2 Aug 22.9 Sep 20.9 Oct 15.7 Nov 14.1 Dec 14.5 Annual 192.8 Ann-NCDC 192.8 ------------------ Element AD: Number Days with Weather Phenomena (count) #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 30 Feb 30 Mar 30 Apr 30 May 30 Jun 30 Jul 30 Aug 30 Sep 30 Oct 30 Nov 30 Dec 30 Annual NA Ann-NCDC NA ------------------