Climatological Report (Monthly)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
845 CXUS55 KRIW 031809 CLMRIW CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 1053 AM MST WED JAN 03 2024 ...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON FOR THE MONTH OF DECEMBER 2023... ...OFFICIAL CLIMATE DATA FOR THE MONTH OF DECEMBER 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 DECEMBER.... THE AVERAGE TEMPERATURE FOR RIVERTON IN DECEMBER WAS 23.9 DEGREES WHICH WAS 4.3 DEGREES ABOVE NORMAL IT WAS THE 5TH WARMEST DECEMBER ON RECORD. THE WARMEST READING FOR THE MONTH WAS 47 DEGREES ON THE 17TH. THE COLDEST READING WAS 0 DEGREES ON THE 1ST AND 25TH. NO TEMPERATURE RECORDS WERE BROKEN THIS MONTH. PRECIPITATION FOR THE MONTH WAS 0.01 INCHES...WHICH IS 4 PERCENT OF NORMAL. IT WAS THE 2ND DRIEST DECEMBER ON RECORD. THE WETTEST 24- HOURS WAS THE 23RD WHEN 0.01 INCHES FELL. NO PRECIPITATION RECORDS WERE BROKEN THIS MONTH. SNOWFALL FOR THE MONTH WAS 0.6 INCHES. THE SNOWIEST 24-HOUR PERIOD WAS THE 23RD WITH 0.6 INCHES OF SNOW. NO SNOWFALL RECORDS WERE BROKEN. THE HIGHEST WIND GUST WAS 53 MPH AND OCCURRED ON THE 3RD FROM THE NORTHWEST. ...THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 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 61 12/01/1995 LOW -31 12/22/2022 HIGHEST 47 12/17 LOWEST 0 12/01 12/25 AVG. MAXIMUM 33.3 30.8 2.5 AVG. MINIMUM 14.6 8.4 6.2 MEAN 23.9 19.6 4.3 DAYS MAX >= 90 0 DAYS MAX <= 32 15 DAYS MIN <= 32 31 DAYS MIN <= 0 2 PRECIPITATION (INCHES) RECORD MAXIMUM 0.79 2022 MINIMUM T 2001 TOTALS 0.01 0.26 -0.25 0.79 DAILY AVG. 0.00 0.01 -0.01 DAYS >= .01 1 DAYS >= .10 0 DAYS >= .50 0 DAYS >= 1.00 0 GREATEST 24 HR. TOTAL 0.01 12/23 TO 12/23 STORM TOTAL 0.01 SNOWFALL (INCHES) TOTALS 0.6 MM MM SINCE 7/1 19.6 MM MM SNOWDEPTH AVG. 1 DAYS >= 1.0 0 DEGREE DAYS HEATING TOTAL 1264 1407 -143 SINCE 7/1 2963 3306 -343 COOLING TOTAL 0 0 0 SINCE 1/1 401 499 -98 .............................................................. WIND (MPH) AVERAGE WIND SPEED 5.5 RESULTANT WIND SPEED/DIRECTION 3/280 HIGHEST WIND SPEED/DIRECTION 41/290 DATE 12/03 HIGHEST GUST SPEED/DIRECTION 53/300 DATE 12/03 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.19 NUMBER OF DAYS FAIR 23 NUMBER OF DAYS PC 6 NUMBER OF DAYS CLOUDY 2 AVERAGE RH (PERCENT) 73 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 0 LIGHT RAIN 0 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 2 SLEET 0 FOG 9 FOG W/VIS <= 1/4 MILE 4 HAZE 4 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. LOOKING AHEAD TO JANUARY 2024. THE AVERAGE HIGH TEMPERATURE ON THE FIRST OF THE MONTH IS 30 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 7 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 32 DEGREES AND THE AVERAGE LOW TEMPERATURE IS 9. THE AVERAGE MONTHLY PRECIPITATION IS 0.29 INCHES. $$