344
CDUS45 KRIW 300731
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1231 AM MST TUE DEC 30 2025
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR DECEMBER 29 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 3:26 PM 34 2004 23 1 31
MINIMUM -4 6:04 AM -16 2014 1 -5 23
AVERAGE 10 12 -2 27
PRECIPITATION (IN)
YESTERDAY 0.00 0.63 2007 0.09 -0.09 0.42
MONTH TO DATE 5.42 2.20 3.22 1.30
SINCE DEC 1 5.42 2.20 3.22 1.30
SINCE JAN 1 23.16 22.94 0.22 19.68
DEGREE DAYS
HEATING
YESTERDAY 55 53 2 38
MONTH TO DATE 1191 1506 -315 1272
SINCE DEC 1 1191 1506 -315 1272
SINCE JUL 1 4149 5013 -864 4379
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 5 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 7 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 0.9
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 5:00 PM
LOWEST 68 1:00 PM
AVERAGE 80
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 23 34 2011
MINIMUM TEMPERATURE (F) 1 -27 2014
SUNRISE AND SUNSET
DECEMBER 30 2025......SUNRISE 7:58 AM MST SUNSET 4:51 PM MST
DECEMBER 31 2025......SUNRISE 7:58 AM MST SUNSET 4:52 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page