671
CDUS45 KRIW 220045
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
545 PM MST SUN DEC 21 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR DECEMBER 21 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 52R 3:26 PM 51 2021 30 22 43
MINIMUM 20 3:51 AM -29 1998 7 13 22
AVERAGE 36 18 18 33
PRECIPITATION (IN)
TODAY 0.00 0.29 2022 0.01 -0.01 0.00
MONTH TO DATE 0.14 0.18 -0.04 T
SINCE DEC 1 0.14 0.18 -0.04 T
SINCE JAN 1 9.10 8.48 0.62 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 29 47 -18 32
MONTH TO DATE 606 939 -333 742
SINCE DEC 1 606 939 -333 742
SINCE JUL 1 2049 2836 -787 2259
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 14 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 4.4
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 77
LOWEST 37
AVERAGE 57
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 30 53 2024
MINIMUM TEMPERATURE (F) 7 -31 2022
SUNRISE AND SUNSET
DECEMBER 21 2025......SUNRISE 7:42 AM MST SUNSET 4:42 PM MST
DECEMBER 22 2025......SUNRISE 7:43 AM MST SUNSET 4:43 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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