235
CDUS45 KRIW 280727
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1227 AM MST SUN DEC 28 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 27 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 46 1:33 PM 61 1980 34 12 43
MINIMUM 10 11:59 PM -16 1941 14 -4 25
AVERAGE 28 24 4
PRECIPITATION (IN)
YESTERDAY 0.13 0.16 1966 0.02 0.11 0.00
MONTH TO DATE 0.36 0.53 -0.17 0.02
SINCE DEC 1 0.36 0.53 -0.17 0.02
SINCE JAN 1 12.05 12.14 -0.09 9.14
SNOWFALL (IN)
YESTERDAY 2.0 4.2 1966 0.4 1.6 0.0
MONTH TO DATE 4.0 9.6 -5.6 T
SINCE DEC 1 4.0 9.6 -5.6 T
SINCE JUL 1 8.3 27.0 -18.7 T
SNOW DEPTH 1
DEGREE DAYS
HEATING
YESTERDAY 37 41 -4 31
MONTH TO DATE 710 1082 -372 827
SINCE DEC 1 710 1082 -372 827
SINCE JUL 1 2136 2884 -748 2327
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 33 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 53 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 19.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
SNOW
LIGHT SNOW
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 7:00 PM
LOWEST 35 3:00 PM
AVERAGE 62
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 34 53 2005
MINIMUM TEMPERATURE (F) 14 -26 1983
SUNRISE AND SUNSET
DECEMBER 28 2025......SUNRISE 7:36 AM MST SUNSET 4:39 PM MST
DECEMBER 29 2025......SUNRISE 7:37 AM MST SUNSET 4:40 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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