891
CDUS45 KRIW 100727
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1227 AM MST WED DEC 10 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR DECEMBER 9 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 58R 1:57 PM 56 2015 32 26 32
MINIMUM 29 7:44 AM -21 2009 9 20 14
AVERAGE 44 20 24 23
PRECIPITATION (IN)
YESTERDAY 0.00 0.13 0.00 0.00 T
MONTH TO DATE 0.14 0.08 0.06 T
SINCE DEC 1 0.14 0.08 0.06 T
SINCE JAN 1 9.10 8.38 0.72 6.22
SNOWFALL (IN)
YESTERDAY 0.0 5.8 1997 T
MONTH TO DATE 1.5 T
SINCE DEC 1 1.5 T
SINCE JUL 1 3.5 3.8
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 21 44 -23 42
MONTH TO DATE 314 388 -74 314
SINCE DEC 1 314 388 -74 314
SINCE JUL 1 1757 2285 -528 1831
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 611 499 112 610
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 9.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 10:00 PM
LOWEST 35 3:00 PM
AVERAGE 62
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 31 53 1996
MINIMUM TEMPERATURE (F) 9 -8 2007
SUNRISE AND SUNSET
DECEMBER 10 2025......SUNRISE 7:35 AM MST SUNSET 4:39 PM MST
DECEMBER 11 2025......SUNRISE 7:35 AM MST SUNSET 4:39 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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