259
CDUS45 KRIW 050730
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1230 AM MST FRI DEC 05 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 4 2025
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)
YESTERDAY
MAXIMUM 37 2:49 PM 59 1965 37 0 51
MINIMUM 20 12:11 AM -22 2013 17 3 17
AVERAGE 29 27 2
PRECIPITATION (IN)
YESTERDAY 0.00 0.25 2017 0.02 -0.02 0.00
MONTH TO DATE 0.07 0.08 -0.01 0.00
SINCE DEC 1 0.07 0.08 -0.01 0.00
SINCE JAN 1 11.76 11.69 0.07 9.12
SNOWFALL (IN)
YESTERDAY 0.0 4.8 2017 0.4 -0.4 0.0
MONTH TO DATE 1.0 1.4 -0.4 0.0
SINCE DEC 1 1.0 1.4 -0.4 0.0
SINCE JUL 1 5.3 18.8 -13.5 T
SNOW DEPTH T
DEGREE DAYS
HEATING
YESTERDAY 36 38 -2 31
MONTH TO DATE 157 151 6 122
SINCE DEC 1 157 151 6 122
SINCE JUL 1 1583 1953 -370 1622
COOLING
YESTERDAY 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
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WIND (MPH)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 18.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75 4:00 AM
LOWEST 49 1:00 PM
AVERAGE 62
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 37 65 1939
MINIMUM TEMPERATURE (F) 16 -27 1972
SUNRISE AND SUNSET
DECEMBER 5 2025......SUNRISE 7:22 AM MST SUNSET 4:32 PM MST
DECEMBER 6 2025......SUNRISE 7:23 AM MST SUNSET 4:31 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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