348
CDUS45 KRIW 300731
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1231 AM MST TUE DEC 30 2025
...............................
..THE GREYBULL 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 37 3:24 PM 47 2011 29 8 42
MINIMUM 11 8:13 AM -13 2016 6 5 14
AVERAGE 24 17 7 28
PRECIPITATION (IN)
YESTERDAY 0.00 0.07 2005 0.00 0.00 0.05
MONTH TO DATE 0.24 0.10 0.14 0.20
SINCE DEC 1 0.24 0.10 0.14 0.20
SINCE JAN 1 7.07 5.54 1.53 6.48
DEGREE DAYS
HEATING
YESTERDAY 41 48 -7 37
MONTH TO DATE 921 1321 -400 1039
SINCE DEC 1 921 1321 -400 1039
SINCE JUL 1 2294 3098 -804 2434
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 791 744 47 832
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 2.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 8:00 AM
LOWEST 27 2:00 PM
AVERAGE 52
......................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 29 61 2002
MINIMUM TEMPERATURE (F) 6 -17 2014
SUNRISE AND SUNSET
DECEMBER 30 2025......SUNRISE 7:49 AM MST SUNSET 4:42 PM MST
DECEMBER 31 2025......SUNRISE 7:49 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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