827
CDUS45 KRIW 080726
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1226 AM MST MON DEC 08 2025
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR DECEMBER 7 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 3:21 PM 50 2008 33 7 45
MINIMUM 21 7:02 AM -21 2013 10 11 18
AVERAGE 31 21 10 32
PRECIPITATION (IN)
YESTERDAY 0.00 0.14 2003 0.01 -0.01 0.00
MONTH TO DATE 0.18 0.03 0.15 0.00
SINCE DEC 1 0.18 0.03 0.15 0.00
SINCE JAN 1 7.01 5.47 1.54 6.28
DEGREE DAYS
HEATING
YESTERDAY 34 44 -10 33
MONTH TO DATE 251 300 -49 247
SINCE DEC 1 251 300 -49 247
SINCE JUL 1 1624 2077 -453 1642
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 12 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 3.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 8:00 AM
LOWEST 72 3:00 PM
AVERAGE 86
......................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 32 53 2024
MINIMUM TEMPERATURE (F) 9 -21 2009
SUNRISE AND SUNSET
DECEMBER 8 2025......SUNRISE 7:36 AM MST SUNSET 4:32 PM MST
DECEMBER 9 2025......SUNRISE 7:37 AM MST SUNSET 4:32 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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