472
CDUS45 KRIW 130730
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1230 AM MST SAT DEC 13 2025
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR DECEMBER 12 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 36 12:22 AM 51 2014 31 5 42
MINIMUM 22 12:02 PM -15 2000 8 14 16
AVERAGE 29 20 9 29
PRECIPITATION (IN)
YESTERDAY T R T 2018 0.00 0.00 0.00
2020
MONTH TO DATE 0.20 0.04 0.16 T
SINCE DEC 1 0.20 0.04 0.16 T
SINCE JAN 1 7.03 5.48 1.55 6.28
DEGREE DAYS
HEATING
YESTERDAY 36 45 -9 36
MONTH TO DATE 400 523 -123 417
SINCE DEC 1 400 523 -123 417
SINCE JUL 1 1773 2300 -527 1812
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 22 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 8.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 8:00 PM
LOWEST 71 11:00 AM
AVERAGE 80
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THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 31 51 2021
MINIMUM TEMPERATURE (F) 8 -10 2000
SUNRISE AND SUNSET
DECEMBER 13 2025......SUNRISE 7:41 AM MST SUNSET 4:33 PM MST
DECEMBER 14 2025......SUNRISE 7:41 AM MST SUNSET 4:33 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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