


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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074 CDUS45 KRIW 310728 CLIRKS CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 128 AM MDT SUN AUG 31 2025 ................................... ...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR AUGUST 30 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 78 4:31 PM 91 1954 77 1 81 MINIMUM 48 6:21 AM 35 1964 50 -2 45 AVERAGE 63 63 0 PRECIPITATION (IN) YESTERDAY 0.00 0.66 1981 0.02 -0.02 0.00 MONTH TO DATE 0.23 0.54 -0.31 0.85 SINCE JUN 1 0.63 1.71 -1.08 1.36 SINCE JAN 1 2.94 5.22 -2.28 4.23 DEGREE DAYS HEATING YESTERDAY 2 3 -1 2 MONTH TO DATE 17 32 -15 24 SINCE JUN 1 86 212 -126 86 SINCE JUL 1 17 53 -36 31 COOLING YESTERDAY 0 1 -1 0 MONTH TO DATE 136 109 27 134 SINCE JUN 1 418 307 111 406 SINCE JAN 1 422 309 113 406 ................................................................... WIND (MPH) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (260) AVERAGE WIND SPEED 5.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 86 6:00 AM LOWEST 16 4:00 PM AVERAGE 51 .......................................................... THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 77 89 2022 MINIMUM TEMPERATURE (F) 49 33 1962 SUNRISE AND SUNSET AUGUST 31 2025........SUNRISE 6:42 AM MDT SUNSET 7:50 PM MDT SEPTEMBER 1 2025.....SUNRISE 6:43 AM MDT SUNSET 7:49 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$