


Climatological Report (Daily)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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152 CDUS45 KRIW 290730 CLIRIW CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 130 AM MDT FRI AUG 29 2025 ................................... ...THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 28 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1995 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 77 3:41 PM 94 2012 82 -5 88 MINIMUM 53 5:25 AM 43 2004 51 2 52 2019 AVERAGE 65 66 -1 70 PRECIPITATION (IN) YESTERDAY 0.09R 0.09 2010 0.02 0.07 0.00 MONTH TO DATE 0.50 0.38 0.12 0.32 SINCE JUN 1 1.71 1.86 -0.15 0.79 SINCE JAN 1 6.23 6.32 -0.09 5.43 SNOWFALL (IN) YESTERDAY 0.0 0.0 2020 0.0 MONTH TO DATE 0.0 0.0 SINCE JUN 1 0.0 0.0 SINCE JUL 1 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 2 -2 0 MONTH TO DATE 3 18 -15 7 SINCE JUN 1 81 143 -62 47 SINCE JUL 1 3 28 -25 14 COOLING YESTERDAY 0 3 -3 5 MONTH TO DATE 182 161 21 183 SINCE JUN 1 567 452 115 538 SINCE JAN 1 573 460 113 538 ................................................................... WIND (MPH) HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (10) HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (360) AVERAGE WIND SPEED 4.7 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM LIGHT RAIN FOG FOG W/VISIBILITY <= 1/4 MILE RELATIVE HUMIDITY (PERCENT) HIGHEST 100 12:00 AM LOWEST 40 4:00 PM AVERAGE 70 .......................................................... THE RIVERTON WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 82 96 2012 MINIMUM TEMPERATURE (F) 50 43 2021 SUNRISE AND SUNSET AUGUST 29 2025........SUNRISE 6:35 AM MDT SUNSET 7:53 PM MDT AUGUST 30 2025........SUNRISE 6:36 AM MDT SUNSET 7:51 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$