289
CDUS45 KRIW 200045
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
545 PM MST FRI DEC 19 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR DECEMBER 19 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 55R 12:22 PM 46 2024 30 25 46
MINIMUM 27 1:23 AM -13 1998 7 20 21
AVERAGE 41 18 23 34
PRECIPITATION (IN)
TODAY 0.00 0.11 2013 0.01 -0.01 0.00
MONTH TO DATE 0.14 0.16 -0.02 T
SINCE DEC 1 0.14 0.16 -0.02 T
SINCE JAN 1 9.10 8.46 0.64 6.22
SNOWFALL (IN)
TODAY MM 0.0
MONTH TO DATE 1.5 T
SINCE DEC 1 1.5 T
SINCE JUL 1 3.5 3.8
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 24 46 -22 31
MONTH TO DATE 543 845 -302 676
SINCE DEC 1 543 845 -302 676
SINCE JUL 1 1986 2742 -756 2193
COOLING
TODAY 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 40 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 51 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 19.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 60
LOWEST 30
AVERAGE 45
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 30 49 2020
MINIMUM TEMPERATURE (F) 7 -21 1998
SUNRISE AND SUNSET
DECEMBER 19 2025......SUNRISE 7:41 AM MST SUNSET 4:41 PM MST
DECEMBER 20 2025......SUNRISE 7:42 AM MST SUNSET 4:42 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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