781
CDUS45 KRIW 170727
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1227 AM MST WED DEC 17 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR DECEMBER 16 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 62R 3:05 PM 55 2013 30 32 35
MINIMUM 35 11:36 PM -11 2019 8 27 10
AVERAGE 49 19 30 23
PRECIPITATION (IN)
YESTERDAY 0.00 0.23 0.01 -0.01 0.00
MONTH TO DATE 0.14 0.14 0.00 T
SINCE DEC 1 0.14 0.14 0.00 T
SINCE JAN 1 9.10 8.44 0.66 6.22
SNOWFALL (IN)
YESTERDAY 0.0 4.1 2016 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
YESTERDAY 16 46 -30 42
MONTH TO DATE 466 707 -241 577
SINCE DEC 1 466 707 -241 577
SINCE JUL 1 1909 2604 -695 2094
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 40 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 54 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 12.6
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 53 6:00 AM
LOWEST 17 3:00 PM
AVERAGE 35
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 30 58 2013
MINIMUM TEMPERATURE (F) 8 -23 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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