


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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561 CDUS45 KRIW 090045 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 645 PM MDT FRI AUG 08 2025 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 8 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 83 1:29 PM 98 1983 89 -6 69 2001 MINIMUM 57 5:27 AM 44 1996 54 3 53 AVERAGE 70 71 -1 61 PRECIPITATION (IN) TODAY 0.00 0.29 2023 0.03 -0.03 0.00 MONTH TO DATE 0.22 0.26 -0.04 T SINCE JUN 1 1.89 2.79 -0.90 1.33 SINCE JAN 1 6.81 8.30 -1.49 6.59 SNOWFALL (IN) TODAY MM 0.0 MM 0.0 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE JUN 1 0.0 0.1 -0.1 0.0 SINCE JUL 1 0.0 0.0 0.0 0.0 SNOW DEPTH MM DEGREE DAYS HEATING TODAY 0 0 0 4 MONTH TO DATE 0 0 0 4 SINCE JUN 1 96 140 -44 74 SINCE JUL 1 5 14 -9 20 COOLING TODAY 5 6 -1 0 MONTH TO DATE 53 54 -1 70 SINCE JUN 1 355 305 50 358 SINCE JAN 1 355 309 46 361 ................................................................... WIND (MPH) HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION SW (230) HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION SW (220) AVERAGE WIND SPEED 11.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 70 LOWEST 21 AVERAGE 46 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 89 99 1992 MINIMUM TEMPERATURE (F) 53 41 1995 SUNRISE AND SUNSET AUGUST 8 2025........SUNRISE 6:05 AM MDT SUNSET 8:17 PM MDT AUGUST 9 2025........SUNRISE 6:06 AM MDT SUNSET 8:16 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$