922
CDUS45 KRIW 100728
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SUN MAY 10 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR MAY 9 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 68 4:18 PM 85 2007 68 0 82
MINIMUM 50 11:50 PM 20 2002 41 9 45
AVERAGE 59 54 5 64
PRECIPITATION (IN)
YESTERDAY 0.04 0.56 1999 0.04 0.00 0.00
MONTH TO DATE 0.22 0.28 -0.06 0.12
SINCE MAR 1 1.12 1.03 0.09 1.04
SINCE JAN 1 1.16 1.30 -0.14 1.25
DEGREE DAYS
HEATING
YESTERDAY 6 11 -5 1
MONTH TO DATE 110 112 -2 86
SINCE MAR 1 1229 1502 -273 1366
SINCE JUL 1 5617 7326 -1709 6851
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 1 -1 0
SINCE JAN 1 0 1 -1 0
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WIND (MPH)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 10.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 6:00 AM
LOWEST 24 4:00 PM
AVERAGE 57
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THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 87 2025
MINIMUM TEMPERATURE (F) 41 28 2022
SUNRISE AND SUNSET
MAY 10 2026...........SUNRISE 5:50 AM MDT SUNSET 8:28 PM MDT
MAY 11 2026...........SUNRISE 5:49 AM MDT SUNSET 8:29 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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