CDUS45 KRIW 190045 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 645 PM MDT MON AUG 18 2025 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 18 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 91 2:57 PM 99 1986 87 4 94 MINIMUM 52 5:23 AM 37 2009 51 1 62 AVERAGE 72 69 3 78 PRECIPITATION (IN) TODAY 0.00 0.48 1978 0.02 -0.02 0.00 MONTH TO DATE 0.23 0.51 -0.28 0.19 SINCE JUN 1 1.90 3.04 -1.14 1.52 SINCE JAN 1 6.82 8.55 -1.73 6.78 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 1 -1 0 MONTH TO DATE 4 6 -2 6 SINCE JUN 1 100 146 -46 76 SINCE JUL 1 9 20 -11 22 COOLING TODAY 7 5 2 13 MONTH TO DATE 103 109 -6 115 SINCE JUN 1 405 360 45 403 SINCE JAN 1 405 364 41 406 ................................................................... WIND (MPH) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION W (250) AVERAGE WIND SPEED 7.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 66 LOWEST 12 AVERAGE 39 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 86 97 2019 MINIMUM TEMPERATURE (F) 51 372002 SUNRISE AND SUNSET AUGUST 18 2025........SUNRISE 6:16 AM MDT SUNSET 8:03 PM MDT AUGUST 19 2025........SUNRISE 6:17 AM MDT SUNSET 8:01 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$