378
CDUS45 KRIW 010728
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1228 AM MST THU JAN 01 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 31 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 52 3:06 PM 54 1980 34 18 25
MINIMUM 34 8:07 AM -34 1978 14 20 8
AVERAGE 43 24 19
PRECIPITATION (IN)
YESTERDAY 0.00 0.38 2011 0.02 -0.02 0.02
MONTH TO DATE 0.36 0.61 -0.25 0.16
SINCE DEC 1 0.36 0.61 -0.25 0.16
SINCE JAN 1 12.05 12.22 -0.17 9.28
SNOWFALL (IN)
YESTERDAY 0.0 4.5 1975 0.3 -0.3 T
MONTH TO DATE 5.5 11.0 -5.5 1.5
SINCE DEC 1 5.5 11.0 -5.5 1.5
SINCE JUL 1 9.8 28.4 -18.6 1.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 22 41 -19 48
MONTH TO DATE 863 1246 -383 970
SINCE DEC 1 863 1246 -383 970
SINCE JUL 1 2289 3048 -759 2470
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 32 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 18.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 48 12:00 AM
LOWEST 28 3:00 PM
AVERAGE 38
......................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 34 52 1943
MINIMUM TEMPERATURE (F) 14 -29 1979
SUNRISE AND SUNSET
JANUARY 1 2026.......SUNRISE 7:37 AM MST SUNSET 4:42 PM MST
JANUARY 2 2026.......SUNRISE 7:37 AM MST SUNSET 4:43 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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