


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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803 CDUS45 KRIW 010728 CLIRKS CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 128 AM MDT MON SEP 01 2025 ................................... ...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR AUGUST 31 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 79 MM 89 2022 77 2 86 MINIMUM 48 MM 33 1962 49 -1 46 AVERAGE 64 63 1 PRECIPITATION (IN) YESTERDAY 0.00 0.51 1963 0.02 -0.02 0.00 MONTH TO DATE 0.23 0.56 -0.33 0.85 SINCE JUN 1 0.63 1.73 -1.10 1.36 SINCE JAN 1 2.94 5.24 -2.30 4.23 DEGREE DAYS HEATING YESTERDAY 1 3 -2 0 MONTH TO DATE 18 35 -17 24 SINCE JUN 1 87 215 -128 86 SINCE JUL 1 18 56 -38 31 COOLING YESTERDAY 0 1 -1 1 MONTH TO DATE 136 109 27 135 SINCE JUN 1 418 307 111 407 SINCE JAN 1 422 309 113 407 ................................................................... WIND (MPH) HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NW (330) HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM AVERAGE WIND SPEED 4.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 71 5:00 AM LOWEST 14 8:00 PM AVERAGE 43 .......................................................... THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 77 90 2022 MINIMUM TEMPERATURE (F) 49 32 1973 SUNRISE AND SUNSET SEPTEMBER 1 2025.....SUNRISE 6:43 AM MDT SUNSET 7:49 PM MDT SEPTEMBER 2 2025.....SUNRISE 6:44 AM MDT SUNSET 7:47 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$