


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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298 CDUS45 KRIW 170732 CLIRKS CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 132 AM MDT FRI OCT 17 2025 ................................... ...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR OCTOBER 16 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 45 2:49 PM 76 1991 56 -11 72 MINIMUM 32 10:09 AM 14 1966 33 -1 45 AVERAGE 39 44 -5 PRECIPITATION (IN) YESTERDAY 0.27 0.40 1980 0.03 0.24 T MONTH TO DATE 0.66 0.46 0.20 T SINCE SEP 1 1.20 1.25 -0.05 0.39 SINCE JAN 1 4.14 6.49 -2.35 4.62 DEGREE DAYS HEATING YESTERDAY 26 21 5 6 MONTH TO DATE 235 279 -44 90 SINCE SEP 1 398 521 -123 217 SINCE JUL 1 416 580 -164 248 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 1 0 1 0 SINCE SEP 1 20 11 9 38 SINCE JAN 1 442 320 122 445 ................................................................... WIND (MPH) HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION W (250) HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (250) AVERAGE WIND SPEED 15.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HEAVY RAIN RAIN LIGHT RAIN SNOW LIGHT SNOW FOG FOG W/VISIBILITY <= 1/4 MILE RELATIVE HUMIDITY (PERCENT) HIGHEST 100 5:00 AM LOWEST 76 5:00 PM AVERAGE 88 .......................................................... THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 56 75 1974 MINIMUM TEMPERATURE (F) 33 13 1948 SUNRISE AND SUNSET OCTOBER 17 2025.......SUNRISE 7:31 AM MDT SUNSET 6:31 PM MDT OCTOBER 18 2025.......SUNRISE 7:32 AM MDT SUNSET 6:30 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$