255
CDUS45 KRIW 050730
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1230 AM MST FRI DEC 05 2025
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR DECEMBER 4 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 21 11:54 PM 38 2021 25 -4 36
MINIMUM 16 4:04 AM -18 2013 5 11 8
AVERAGE 19 15 4 22
PRECIPITATION (IN)
YESTERDAY 0.20 0.39 2016 0.07 0.13 0.00
MONTH TO DATE 0.27 0.29 -0.02 0.00
SINCE DEC 1 0.27 0.29 -0.02 0.00
SINCE JAN 1 18.01 21.03 -3.02 18.38
DEGREE DAYS
HEATING
YESTERDAY 46 50 -4 43
MONTH TO DATE 196 199 -3 177
SINCE DEC 1 196 199 -3 177
SINCE JUL 1 3154 3706 -552 3284
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1 0 1 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 4.5
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 92 3:00 AM
LOWEST 80 2:00 PM
AVERAGE 86
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THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 25 37 2014
MINIMUM TEMPERATURE (F) 5 -21 2013
SUNRISE AND SUNSET
DECEMBER 5 2025......SUNRISE 7:43 AM MST SUNSET 4:42 PM MST
DECEMBER 6 2025......SUNRISE 7:44 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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