949
CDUS45 KRIW 210733
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1233 AM MST FRI NOV 21 2025
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR NOVEMBER 20 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 40 3:08 PM 45 2016 30 10 26
MINIMUM 22 11:50 PM -12 2015 9 13 -2
AVERAGE 31 20 11 12
PRECIPITATION (IN)
YESTERDAY 0.00 0.96 2010 0.07 -0.07 0.00
MONTH TO DATE 0.70 1.38 -0.68 0.74
SINCE SEP 1 5.64 4.80 0.84 2.77
SINCE JAN 1 17.35 20.06 -2.71 17.96
DEGREE DAYS
HEATING
YESTERDAY 34 45 -11 53
MONTH TO DATE 620 830 -210 864
SINCE SEP 1 2013 2390 -377 2085
SINCE JUL 1 2529 3032 -503 2662
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JAN 1 1 0 1 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 5 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 0.8
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 96 8:00 AM
LOWEST 57 3:00 PM
AVERAGE 77
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 30 43 2006
MINIMUM TEMPERATURE (F) 9 -13 2015
SUNRISE AND SUNSET
NOVEMBER 21 2025......SUNRISE 7:26 AM MST SUNSET 4:48 PM MST
NOVEMBER 22 2025......SUNRISE 7:28 AM MST SUNSET 4:48 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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