181
CDUS45 KRIW 280727
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1227 AM MST SUN DEC 28 2025
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR DECEMBER 27 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 24 7:28 AM 33 2022 23 1 24
MINIMUM 2 10:44 PM -16 2008 1 1 18
2009
2015
AVERAGE 13 12 1 21
PRECIPITATION (IN)
YESTERDAY 0.26 0.60 2022 0.08 0.18 0.04
MONTH TO DATE 5.42 2.03 3.39 0.84
SINCE DEC 1 5.42 2.03 3.39 0.84
SINCE JAN 1 23.16 22.77 0.39 19.22
DEGREE DAYS
HEATING
YESTERDAY 52 53 -1 44
MONTH TO DATE 1070 1400 -330 1194
SINCE DEC 1 1070 1400 -330 1194
SINCE JUL 1 4028 4907 -879 4301
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 17 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 6.7
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 88 3:00 AM
LOWEST 64 4:00 PM
AVERAGE 76
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 23 33 2002
2005
MINIMUM TEMPERATURE (F) 1 -17 2009
SUNRISE AND SUNSET
DECEMBER 28 2025......SUNRISE 7:58 AM MST SUNSET 4:49 PM MST
DECEMBER 29 2025......SUNRISE 7:58 AM MST SUNSET 4:50 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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