CDUS45 KRIW 130045 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 545 PM MST FRI DEC 12 2025 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 12 2025... VALID TODAY AS OF 0500 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 35 4:33 AM 60 2014 35 0 44 MINIMUM 25 4:59 PM -14 2000 15 10 18 AVERAGE 30 25 5 31 PRECIPITATION (IN) TODAY 0.00 0.26 1940 0.02 -0.02 0.00 1992 MONTH TO DATE 0.11 0.24 -0.13 0.01 SINCE DEC 1 0.11 0.24 -0.13 0.01 SINCE JAN 1 11.80 11.85 -0.05 9.13 SNOWFALL (IN) TODAY MM 0.3 MM 0.0 MONTH TO DATE 1.0 4.2 -3.2 T SINCE DEC 1 1.0 4.2 -3.2 T SINCE JUL 1 5.3 21.6 -16.3 T SNOW DEPTH MM DEGREE DAYS HEATING TODAY 35 40 -5 34 MONTH TO DATE 379 468 -89 379 SINCE DEC 1 379 468 -89 379 SINCE JUL 1 1805 2270 -465 1879 COOLING TODAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 467 443 24 538 ................................................................... WIND (MPH) HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (20) HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION NE (40) AVERAGE WIND SPEED 4.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 96 LOWEST 75 AVERAGE 86 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 34 57 2014 MINIMUM TEMPERATURE (F) 15 -16 1967 SUNRISE AND SUNSET DECEMBER 12 2025......SUNRISE 7:28 AM MST SUNSET 4:32 PM MST DECEMBER 13 2025......SUNRISE 7:29 AM MST SUNSET 4:32 PM MST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$