077
CDUS45 KRIW 190731
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1231 AM MST FRI DEC 19 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR DECEMBER 18 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 38 12:04 PM 59 2013 30 8 49
MINIMUM 27 11:49 PM -18 2016 7 20 19
AVERAGE 33 19 14 34
PRECIPITATION (IN)
YESTERDAY 0.00 0.05 0.00 0.00 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)
YESTERDAY 0.0 2.5 2002 0.0
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 32 46 -14 31
MONTH TO DATE 519 799 -280 645
SINCE DEC 1 519 799 -280 645
SINCE JUL 1 1962 2696 -734 2162
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 45 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 60 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 14.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 49 11:00 PM
LOWEST 20 3:00 PM
AVERAGE 35
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THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 30 46 2024
MINIMUM TEMPERATURE (F) 7 -13 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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