Climatological Report (Monthly)
Issued by NWS
Issued by NWS
366 CXUS55 KRIW 011738 CLMGEY CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 1122 AM MDT TUE OCT 01 2024 ...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR GREYBULL FOR THE MONTH OF SEPTEMBER 2024... ...OFFICIAL CLIMATE DATA FOR THE MONTH OF SEPTEMBER 2024 WILL BE AVAILABLE IN APPROXIMATELY 60 DAYS FROM THE NATIONAL CENTERS FOR ENVIRONMENTAL INFORMATION (HTTP://WWW.NCDC.NOAA.GOV/CDO- WEB/DATASETS). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW ...GREYBULL IN SEPTEMBER WAS DRIER THAN NORMAL WITH RECORD WARMTH.... THE AVERAGE TEMPERATURE FOR GREYBULL IN SEPTEMBER WAS 65.4 DEGREES WHICH WAS 4.5 DEGREES ABOVE NORMAL. THIS TIED WITH 2015 AND 2022 FOR THE WARMEST SEPTEMBER SINCE RECORDS BEGAN IN 1998. THE WARMEST READING FOR THE MONTH WAS 99 DEGREES ON THE 2ND. THIS BROKE THE 2019 RECORD OF 98. OTHER DAILY RECORD HIGHS ARE LISTED BELOW. THE COLDEST TEMPERATURE WAS 35 DEGREES ON THE 22ND. DATE NEW OLD YEAR 8TH 93 (TIE) 93 2005 25TH 94 93 2014 29TH 97 87 2009 PRECIPITATION FOR THE MONTH WAS 0.38 INCHES...WHICH IS 46 PERCENT OF NORMAL. THE WETTEST 24-HOUR PERIOD OCCURRED ON THE 12TH WITH 0.19 INCHES. THIS BROKE THE 2016 RECORD OF 0.12. THE 18TH HAD 0.16 INCHES AND BROKE THE 2017 RECORD OF 0.09. THE HIGHEST WIND GUST WAS 58 MPH FROM THE NORTHWEST ON THE 3RD. ...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2024 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 103 09/04/2022 LOW 27 09/18/2003 09/29/1999 HIGHEST 99 09/02 LOWEST 35 09/22 AVG. MAXIMUM 84.0 76.7 7.3 AVG. MINIMUM 46.7 45.1 1.6 MEAN 65.4 60.9 4.5 DAYS MAX >= 90 11 DAYS MAX <= 32 0 DAYS MIN <= 32 0 DAYS MIN <= 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 3.21 2019 MINIMUM 0.01 2021 TOTALS 0.38 0.83 -0.45 1.58 DAILY AVG. 0.01 0.03 -0.02 DAYS >= .01 3 DAYS >= .10 2 DAYS >= .50 0 DAYS >= 1.00 0 GREATEST 24 HR. TOTAL 0.19 09/12 TO 09/12 STORM TOTAL 0.19 DEGREE DAYS HEATING TOTAL 70 169 -99 SINCE 7/1 83 189 -106 COOLING TOTAL 89 46 43 SINCE 1/1 830 742 88 .............................................................. WIND (MPH) AVERAGE WIND SPEED 5.7 RESULTANT WIND SPEED/DIRECTION 0/130 HIGHEST WIND SPEED/DIRECTION 43/340 DATE 09/03 43/330 09/30 HIGHEST GUST SPEED/DIRECTION 58/330 DATE 09/03 58/320 09/30 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.08 NUMBER OF DAYS FAIR 28 NUMBER OF DAYS PC 1 NUMBER OF DAYS CLOUDY 1 AVERAGE RH (PERCENT) 45 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 4 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 2 LIGHT RAIN 3 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 2 FOG W/VIS <= 1/4 MILE 0 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. LOOKING AHEAD TO OCTOBER 2024. THE AVERAGE HIGH TEMPERATURE ON THE FIRST OF THE MONTH IS 68 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 39 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 52 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 26 DEGREES. THE AVERAGE MONTHLY PRECIPITATION IS 0.60 INCHES. $$