


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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646 CDUS45 KRIW 060737 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 137 AM MDT WED AUG 06 2025 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 5 2025... 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) YESTERDAY MAXIMUM 94 3:06 PM 102 1979 89 5 94 MINIMUM 56 3:16 AM 39 1980 54 2 52 AVERAGE 75 72 3 PRECIPITATION (IN) YESTERDAY 0.00 0.25 1942 0.03 -0.03 0.00 MONTH TO DATE 0.22 0.16 0.06 T SINCE JUN 1 1.89 2.69 -0.80 1.33 SINCE JAN 1 6.81 8.20 -1.39 6.59 SNOWFALL (IN) YESTERDAY 0.0 0.0 2020 0.0 0.0 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 0 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 96 140 -44 70 SINCE JUL 1 5 14 -9 16 COOLING YESTERDAY 10 7 3 8 MONTH TO DATE 28 35 -7 48 SINCE JUN 1 330 286 44 336 SINCE JAN 1 330 290 40 339 ................................................................... WIND (MPH) HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION SW (230) HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION SW (220) AVERAGE WIND SPEED 8.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 90 4:00 AM LOWEST 8 3:00 PM AVERAGE 49 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 89 101 2001 MINIMUM TEMPERATURE (F) 54 40 1996 SUNRISE AND SUNSET AUGUST 6 2025........SUNRISE 6:03 AM MDT SUNSET 8:20 PM MDT AUGUST 7 2025........SUNRISE 6:04 AM MDT SUNSET 8:19 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$