827
CDUS45 KRIW 280045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
545 PM MST SAT DEC 27 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 27 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 46 1:33 PM 61 1980 34 12 43
MINIMUM 32 4:59 PM -16 1941 14 18 25
AVERAGE 39 24 15 34
PRECIPITATION (IN)
TODAY T 0.16 1966 0.02 -0.02 0.00
MONTH TO DATE 0.23 0.53 -0.30 0.02
SINCE DEC 1 0.23 0.53 -0.30 0.02
SINCE JAN 1 11.92 12.14 -0.22 9.14
SNOWFALL (IN)
TODAY MM 0.4 MM 0.0
MONTH TO DATE 2.0 9.6 -7.6 T
SINCE DEC 1 2.0 9.6 -7.6 T
SINCE JUL 1 6.3 27.0 -20.7 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 26 41 -15 31
MONTH TO DATE 699 1082 -383 827
SINCE DEC 1 699 1082 -383 827
SINCE JUL 1 2125 2884 -759 2327
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 33 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 53 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 21.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
LIGHT SNOW
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88
LOWEST 35
AVERAGE 62
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 34 53 2005
MINIMUM TEMPERATURE (F) 14 -26 1983
SUNRISE AND SUNSET
DECEMBER 27 2025......SUNRISE 7:36 AM MST SUNSET 4:38 PM MST
DECEMBER 28 2025......SUNRISE 7:36 AM MST SUNSET 4:39 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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