CDUS45 KRIW 220045 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 645 PM MDT FRI AUG 21 2026 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 21 2026... VALID TODAY AS OF 0600 PM LOCAL TIME. CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1939 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 99R 2:12 PM 96 2024 86 13 86 MINIMUM 57 2:58 AM 38 2016 50 7 55 AVERAGE 78 68 10 71 PRECIPITATION (IN) TODAY 0.00 0.28 1987 0.02 -0.02 T MONTH TO DATE 1.88 0.58 1.30 0.23 SINCE JUN 1 2.56 3.11 -0.55 1.90 SINCE JAN 1 6.21 8.62 -2.41 6.82 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 5 9 -4 4 SINCE JUN 1 97 149 -52 100 SINCE JUL 1 5 23 -18 9 COOLING TODAY 13 4 9 6 MONTH TO DATE 147 122 25 133 SINCE JUN 1 524 373 151 435 SINCE JAN 1 525 377 148 435 ................................................................... WIND (MPH) HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (330) HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (310) AVERAGE WIND SPEED 9.8 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 67 LOWEST 12 AVERAGE 40 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 85 97 20092010 MINIMUM TEMPERATURE (F) 50 36 1966 SUNRISE AND SUNSET AUGUST 21 2026........SUNRISE 6:19 AM MDT SUNSET 7:58 PM MDT AUGUST 22 2026........SUNRISE 6:20 AM MDT SUNSET 7:57 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$