660
CDUS45 KRIW 220045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
545 PM MST FRI NOV 21 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR NOVEMBER 21 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 57 2:57 PM 61 1989 43 14 56
2012
MINIMUM 22 2:14 AM -16 1947 20 2 35
AVERAGE 40 32 8 46
PRECIPITATION (IN)
TODAY 0.00 0.53 1983 0.03 -0.03 0.00
MONTH TO DATE 0.03 0.47 -0.44 0.12
SINCE SEP 1 4.14 2.61 1.53 1.87
SINCE JAN 1 11.45 11.44 0.01 8.85
SNOWFALL (IN)
TODAY MM 0.3 MM 0.0
MONTH TO DATE T 6.1 -6.1 T
SINCE SEP 1 1.3 14.6 -13.3 T
SINCE JUL 1 1.3 14.6 -13.3 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 25 33 -8 19
MONTH TO DATE 410 615 -205 601
SINCE SEP 1 1065 1440 -375 1161
SINCE JUL 1 1075 1485 -410 1199
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 18 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 8.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100
LOWEST 40
AVERAGE 70
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 61 2002
2006
MINIMUM TEMPERATURE (F) 20 -20 1947
SUNRISE AND SUNSET
NOVEMBER 21 2025......SUNRISE 7:06 AM MST SUNSET 4:37 PM MST
NOVEMBER 22 2025......SUNRISE 7:07 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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