233
CDUS45 KRIW 280727
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1227 AM MST SUN DEC 28 2025
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR DECEMBER 27 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 48R 12:08 PM 47 2022 29 19 25
MINIMUM 17 11:59 PM -17 2017 6 11 11
AVERAGE 33 17 16 18
PRECIPITATION (IN)
YESTERDAY T R T 2005 0.01 -0.01 0.00
2016
2020
MONTH TO DATE 0.24 0.10 0.14 0.15
SINCE DEC 1 0.24 0.10 0.14 0.15
SINCE JAN 1 7.07 5.54 1.53 6.43
DEGREE DAYS
HEATING
YESTERDAY 32 48 -16 47
MONTH TO DATE 832 1225 -393 955
SINCE DEC 1 832 1225 -393 955
SINCE JUL 1 2205 3002 -797 2350
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 37 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 47 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 14.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 1:00 AM
LOWEST 37 12:00 PM
AVERAGE 61
......................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 29 55 1998
MINIMUM TEMPERATURE (F) 6 -10 2016
SUNRISE AND SUNSET
DECEMBER 28 2025......SUNRISE 7:48 AM MST SUNSET 4:40 PM MST
DECEMBER 29 2025......SUNRISE 7:48 AM MST SUNSET 4:41 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