311
CDUS45 KRIW 010728
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1228 AM MST THU JAN 01 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR DECEMBER 31 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 48 3:32 PM 58 2002 29 19 33
MINIMUM 14 8:04 AM -22 2014 6 8 22
AVERAGE 31 17 14 28
PRECIPITATION (IN)
YESTERDAY 0.00 0.05 2001 0.00 0.00 T
MONTH TO DATE 0.24 0.11 0.13 0.23
SINCE DEC 1 0.24 0.11 0.13 0.23
SINCE JAN 1 7.07 5.55 1.52 6.51
DEGREE DAYS
HEATING
YESTERDAY 34 48 -14 37
MONTH TO DATE 992 1417 -425 1109
SINCE DEC 1 992 1417 -425 1109
SINCE JUL 1 2365 3194 -829 2504
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 8 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 2.3
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 84 6:00 AM
LOWEST 37 3:00 PM
AVERAGE 61
......................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 29 65 2003
MINIMUM TEMPERATURE (F) 6 -22 2011
SUNRISE AND SUNSET
JANUARY 1 2026.......SUNRISE 7:49 AM MST SUNSET 4:43 PM MST
JANUARY 2 2026.......SUNRISE 7:49 AM MST SUNSET 4:44 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