781
CDUS45 KRIW 210045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
545 PM MST THU NOV 20 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR NOVEMBER 20 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 54 3:50 PM 61 1966 44 10 47
MINIMUM 32 8:39 AM -14 1977 21 11 13
2011
AVERAGE 43 32 11 30
PRECIPITATION (IN)
TODAY 0.00 0.52 1979 0.02 -0.02 0.00
MONTH TO DATE 0.03 0.44 -0.41 0.12
SINCE SEP 1 4.14 2.58 1.56 1.87
SINCE JAN 1 11.45 11.41 0.04 8.85
SNOWFALL (IN)
TODAY MM 0.3 MM 0.0
MONTH TO DATE T 5.8 -5.8 T
SINCE SEP 1 1.3 14.3 -13.0 T
SINCE JUL 1 1.3 14.3 -13.0 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 22 33 -11 35
MONTH TO DATE 384 582 -198 582
SINCE SEP 1 1039 1407 -368 1142
SINCE JUL 1 1049 1452 -403 1180
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 17 31 -14 63
SINCE JAN 1 467 443 24 538
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 3.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100
LOWEST 48
AVERAGE 74
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 61 1989
2012
MINIMUM TEMPERATURE (F) 20 -16 1947
SUNRISE AND SUNSET
NOVEMBER 20 2025......SUNRISE 7:05 AM MST SUNSET 4:38 PM MST
NOVEMBER 21 2025......SUNRISE 7:06 AM MST SUNSET 4:37 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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