Climatological Report (Monthly)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
180 CXUS55 KRIW 011746 CLMRIW CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 1122 AM MDT TUE OCT 01 2024 ...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON 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 ...RIVERTON WAS DRIER AND WARMER THAN NORMAL IN SEPTEMBER.... THE AVERAGE TEMPERATURE FOR RIVERTON IN SEPTEMBER WAS 64.2 DEGREES WHICH WAS 5 DEGREES ABOVE NORMAL. THIS MONTH TIED WITH 2022 AS THE SECOND WARMEST SEPTEMBER SINCE RECORDS BEGAN IN 1998. THE WARMEST READING FOR THE MONTH WAS 91 DEGREES ON THE 2ND. THE COLDEST READING WAS 35 DEGREES ON THE 22ND. NO TEMPERATURE RECORDS WERE BROKEN EXCEPT THAT THE HIGH ON THE 29TH OF 90 DEGREES BROKE THE RECORD FOR THE LATEST DAY OF THE YEAR WITH A HIGH OF 90 DEGREES OR MORE. PREVIOUSLY IT WAS ON SEPTEMBER 26TH IN 2014 PRECIPITATION FOR THE MONTH WAS 0.07 INCHES...WHICH IS 9 PERCENT OF NORMAL. THIS TIED FOR THE 3RD DRIEST SEPTEMBER SINCE RECORDS BEGAN IN 1998. THE WETTEST 24-HOURS WAS THE 3RD-4TH WHEN 0.03 INCHES FELL. NO PRECIPITATION RECORDS WERE BROKEN. THE HIGHEST WIND GUST WAS 52 MPH FROM THE SOUTHWEST AND OCCURRED ON THE 17TH. ...THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1995 TO 2024 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 100 09/04/2022 LOW 21 09/27/1996 09/27/1996 HIGHEST 91 09/02 LOWEST 35 09/22 AVG. MAXIMUM 80.3 74.0 6.3 AVG. MINIMUM 48.0 44.4 3.6 MEAN 64.2 59.2 5.0 DAYS MAX >= 90 4 DAYS MAX <= 32 0 DAYS MIN <= 32 0 DAYS MIN <= 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 3.01 2013 MINIMUM 0.01 2010 TOTALS 0.07 0.77 -0.70 0.67 DAILY AVG. 0.00 0.03 -0.03 DAYS >= .01 5 DAYS >= .10 0 DAYS >= .50 0 DAYS >= 1.00 0 GREATEST 24 HR. TOTAL 0.03 09/03 TO 09/04 09/11 TO 09/12 STORM TOTAL 0.02 SNOWFALL (INCHES) TOTALS 0.0 MM MM SINCE 7/1 0.0 MM MM SNOWDEPTH AVG. 0 DAYS >= 1.0 0 DEGREE DAYS HEATING TOTAL 86 205 -119 SINCE 7/1 104 241 -137 COOLING TOTAL 67 31 36 SINCE 1/1 609 499 110 .............................................................. WIND (MPH) AVERAGE WIND SPEED 8.8 RESULTANT WIND SPEED/DIRECTION 3/290 HIGHEST WIND SPEED/DIRECTION 38/230 DATE 09/12 38/220 09/17 HIGHEST GUST SPEED/DIRECTION 52/210 DATE 09/17 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.04 NUMBER OF DAYS FAIR 30 NUMBER OF DAYS PC 0 NUMBER OF DAYS CLOUDY 0 AVERAGE RH (PERCENT) 37 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 4 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 0 LIGHT RAIN 6 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 0 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 66 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 38 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 51 DEGREES AND THE AVERAGE LOW TEMPERATURE IS 25. THE AVERAGE MONTHLY PRECIPITATION IS 0.83 INCHES. $$