642
CDUS45 KRIW 270731
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT MON APR 27 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR APRIL 26 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 52 12:42 PM 84 2012 63 -11 71
MINIMUM 26R 5:33 AM 28 2002 36 -10 39
2010
AVERAGE 39 50 -11 55
PRECIPITATION (IN)
YESTERDAY 0.01 0.21 1999 0.03 -0.02 0.00
MONTH TO DATE 0.64 0.43 0.21 0.25
SINCE MAR 1 0.89 0.65 0.24 0.72
SINCE JAN 1 0.93 0.92 0.01 0.93
DEGREE DAYS
HEATING
YESTERDAY 26 16 10 10
MONTH TO DATE 446 491 -45 493
SINCE MAR 1 1029 1331 -302 1225
SINCE JUL 1 5417 7155 -1738 6710
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 12.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 9:00 PM
LOWEST 34 11:00 AM
AVERAGE 63
......................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 63 82 2004
MINIMUM TEMPERATURE (F) 36 23 2008
SUNRISE AND SUNSET
APRIL 27 2026.........SUNRISE 6:09 AM MDT SUNSET 8:12 PM MDT
APRIL 28 2026.........SUNRISE 6:07 AM MDT SUNSET 8:13 PM MDT
- 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