602
CDUS45 KRIW 180045
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
545 PM MST WED DEC 17 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR DECEMBER 17 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 58R 12:38 PM 58 2013 30 28 37
MINIMUM 32 2:43 AM -23 2016 8 24 19
AVERAGE 45 19 26 28
PRECIPITATION (IN)
TODAY 0.00 0.06 2002 0.01 -0.01 0.00
MONTH TO DATE 0.14 0.15 -0.01 T
SINCE DEC 1 0.14 0.15 -0.01 T
SINCE JAN 1 9.10 8.45 0.65 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 20 46 -26 37
MONTH TO DATE 486 753 -267 614
SINCE DEC 1 486 753 -267 614
SINCE JUL 1 1929 2650 -721 2131
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 47 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 67 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 17.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 61
LOWEST 20
AVERAGE 41
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 30 59 2013
MINIMUM TEMPERATURE (F) 7 -18 2016
SUNRISE AND SUNSET
DECEMBER 17 2025......SUNRISE 7:40 AM MST SUNSET 4:40 PM MST
DECEMBER 18 2025......SUNRISE 7:40 AM MST SUNSET 4:41 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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