Climatological Report (Monthly)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
000 CXUS55 KRIW 021641 CLMRIW CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 1021 AM MDT MON OCT 02 2023 ...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON FOR THE MONTH OF SEPTEMBER 2023... ...OFFICIAL CLIMATE DATA FOR THE MONTH OF SEPTEMBER 2023 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 WARMER AND DRIER THAN NORMAL IN SEPTEMBER.... THE AVERAGE TEMPERATURE FOR RIVERTON IN SEPTEMBER WAS 62.4 DEGREES WHICH WAS 3.2 DEGREES ABOVE NORMAL. THE WARMEST READING FOR THE MONTH WAS 88 DEGREES ON THE 1ST. THE HIGH ON THE 30TH OF 83 BROKE THE 2005 RECORD OF 81. THE COLDEST READING WAS 39 DEGREES ON THE 23RD. PRECIPITATION FOR THE MONTH WAS 0.67 INCHES...WHICH IS 87 PERCENT OF NORMAL. THE WETTEST 24-HOURS WAS THE 13TH-14TH WHEN 0.52 INCHES FELL. THE 4TH HAD 0.14 INCHES WHICH BROKE 0.10 FROM 2008. THE 13TH HAD 0.26 INCHES WHICH BROKE THE 1998 RECORD OF 0.07. THE HIGHEST WIND GUST OCCURRED ON THE 3RD WITH 47 MPH FROM THE NORTHWEST. ...THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1995 TO 2023 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 88 09/01 LOWEST 39 09/23 AVG. MAXIMUM 76.9 74.0 2.9 AVG. MINIMUM 47.8 44.4 3.4 MEAN 62.3 59.2 3.1 DAYS MAX >= 90 0 DAYS MAX <= 32 0 DAYS MIN <= 32 0 DAYS MIN <= 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 3.01 2013 MINIMUM 0.01 2010 TOTALS 0.67 0.77 -0.10 1.14 DAILY AVG. 0.02 0.03 -0.01 DAYS >= .01 4 DAYS >= .10 3 DAYS >= .50 0 DAYS >= 1.00 0 GREATEST 24 HR. TOTAL 0.52 09/13 TO 09/14 STORM TOTAL 0.26 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 103 205 -102 SINCE 7/1 136 241 -105 COOLING TOTAL 30 31 -1 SINCE 1/1 401 499 -98 .............................................................. WIND (MPH) AVERAGE WIND SPEED 7.8 RESULTANT WIND SPEED/DIRECTION 3/290 HIGHEST WIND SPEED/DIRECTION 33/300 DATE 09/23 HIGHEST GUST SPEED/DIRECTION 47/290 DATE 09/03 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.16 NUMBER OF DAYS FAIR 25 NUMBER OF DAYS PC 4 NUMBER OF DAYS CLOUDY 1 AVERAGE RH (PERCENT) 48 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 2 MIXED PRECIP 0 HEAVY RAIN 2 RAIN 2 LIGHT RAIN 10 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 3 FOG W/VIS <= 1/4 MILE 1 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. LOOKING AHEAD TO OCTOBER 2023...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. $$