911
CDUS45 KRIW 230045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
545 PM MST MON DEC 22 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 22 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 61R 2:00 PM 55 1940 34 27 48
MINIMUM 47 8:04 AM -42 2022 14 33 28
AVERAGE 54 24 30 38
PRECIPITATION (IN)
TODAY T 0.23 1941 0.02 -0.02 0.00
MONTH TO DATE 0.21 0.43 -0.22 0.01
SINCE DEC 1 0.21 0.43 -0.22 0.01
SINCE JAN 1 11.90 12.04 -0.14 9.13
SNOWFALL (IN)
TODAY MM 0.3 MM 0.0
MONTH TO DATE 2.0 7.8 -5.8 T
SINCE DEC 1 2.0 7.8 -5.8 T
SINCE JUL 1 6.3 25.2 -18.9 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 11 41 -30 27
MONTH TO DATE 605 877 -272 675
SINCE DEC 1 605 877 -272 675
SINCE JUL 1 2031 2679 -648 2175
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 40 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 54 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 26.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 52
LOWEST 27
AVERAGE 40
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 34 53 1994
MINIMUM TEMPERATURE (F) 14 -39 1983
SUNRISE AND SUNSET
DECEMBER 22 2025......SUNRISE 7:34 AM MST SUNSET 4:35 PM MST
DECEMBER 23 2025......SUNRISE 7:35 AM MST SUNSET 4:36 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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