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CDUS45 KRIW 050730
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1230 AM MST FRI DEC 05 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR DECEMBER 4 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 39 2:06 PM 57 2007 33 6 46
MINIMUM 15 4:51 AM -8 2009 11 4 19
AVERAGE 27 22 5 33
PRECIPITATION (IN)
YESTERDAY 0.00 0.13 0.01 -0.01 0.00
MONTH TO DATE 0.14 0.04 0.10 0.00
SINCE DEC 1 0.14 0.04 0.10 0.00
SINCE JAN 1 9.10 8.34 0.76 6.22
SNOWFALL (IN)
YESTERDAY 0.0 1.5 2017 0.0
MONTH TO DATE 1.5 0.0
SINCE DEC 1 1.5 0.0
SINCE JUL 1 3.5 3.8
SNOW DEPTH 1
DEGREE DAYS
HEATING
YESTERDAY 38 43 -5 32
MONTH TO DATE 166 169 -3 136
SINCE DEC 1 166 169 -3 136
SINCE JUL 1 1609 2066 -457 1653
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 29 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 10.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 12:00 AM
LOWEST 42 2:00 PM
AVERAGE 63
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 33 56 2012
MINIMUM TEMPERATURE (F) 11 -14 2013
SUNRISE AND SUNSET
DECEMBER 5 2025......SUNRISE 7:30 AM MST SUNSET 4:39 PM MST
DECEMBER 6 2025......SUNRISE 7:31 AM MST SUNSET 4:39 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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