


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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320 CDUS45 KRIW 290730 CLIRKS CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 130 AM MDT FRI AUG 29 2025 ................................... ...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR AUGUST 28 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1948 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 75 4:21 PM 89 1974 78 -3 84 MINIMUM 51 5:27 AM 38 1977 50 1 53 AVERAGE 63 64 -1 PRECIPITATION (IN) YESTERDAY T 0.27 1958 0.02 -0.02 0.00 MONTH TO DATE 0.23 0.50 -0.27 0.85 SINCE JUN 1 0.63 1.67 -1.04 1.36 SINCE JAN 1 2.94 5.18 -2.24 4.23 DEGREE DAYS HEATING YESTERDAY 2 2 0 0 MONTH TO DATE 12 26 -14 18 SINCE JUN 1 81 206 -125 80 SINCE JUL 1 12 47 -35 25 COOLING YESTERDAY 0 2 -2 4 MONTH TO DATE 136 106 30 134 SINCE JUN 1 418 304 114 406 SINCE JAN 1 422 306 116 406 ................................................................... WIND (MPH) HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION SW (240) AVERAGE WIND SPEED 11.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 93 6:00 AM LOWEST 30 4:00 PM AVERAGE 62 .......................................................... THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 78 90 1948 MINIMUM TEMPERATURE (F) 50 34 1964 SUNRISE AND SUNSET AUGUST 29 2025........SUNRISE 6:40 AM MDT SUNSET 7:54 PM MDT AUGUST 30 2025........SUNRISE 6:41 AM MDT SUNSET 7:52 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$