


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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794 CDUS45 KRIW 060045 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 645 PM MDT FRI SEP 05 2025 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 5 2025... VALID TODAY AS OF 0600 PM LOCAL TIME. CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1939 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 68 2:04 PM 98 2020 81 -13 79 MINIMUM 42 5:42 AM 34 1965 46 -4 44 AVERAGE 55 63 -8 62 PRECIPITATION (IN) TODAY 0.00 0.24 1993 0.03 -0.03 0.00 MONTH TO DATE 0.01 0.11 -0.10 0.15 SINCE SEP 1 0.01 0.11 -0.10 0.15 SINCE JAN 1 7.32 8.94 -1.62 7.13 SNOWFALL (IN) TODAY MM 0.0 MM 0.0 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE SEP 1 0.0 0.0 0.0 0.0 SINCE JUL 1 0.0 0.0 0.0 0.0 SNOW DEPTH MM DEGREE DAYS HEATING TODAY 10 4 6 3 MONTH TO DATE 13 16 -3 7 SINCE SEP 1 13 16 -3 7 SINCE JUL 1 23 61 -38 45 COOLING TODAY 0 2 -2 0 MONTH TO DATE 4 11 -7 25 SINCE SEP 1 4 11 -7 25 SINCE JAN 1 454 423 31 500 ................................................................... WIND (MPH) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (360) HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION N (350) AVERAGE WIND SPEED 3.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 65 LOWEST 27 AVERAGE 46 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 80 96 1978 2022 MINIMUM TEMPERATURE (F) 46 33 1956 2010 SUNRISE AND SUNSET SEPTEMBER 5 2025.....SUNRISE 6:35 AM MDT SUNSET 7:33 PM MDT SEPTEMBER 6 2025.....SUNRISE 6:36 AM MDT SUNSET 7:31 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$