097
CDUS45 KRIW 120732
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT TUE MAY 12 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR MAY 11 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 89R 2:41 PM 89 2025 69 20 89
MINIMUM 48 4:34 AM 27 2015 42 6 49
AVERAGE 69 55 14 69
PRECIPITATION (IN)
YESTERDAY 0.00 0.40 2005 0.04 -0.04 0.40
2025
MONTH TO DATE 0.22 0.36 -0.14 0.52
SINCE MAR 1 1.12 1.11 0.01 1.44
SINCE JAN 1 1.16 1.38 -0.22 1.65
DEGREE DAYS
HEATING
YESTERDAY 0 10 -10 0
MONTH TO DATE 116 133 -17 86
SINCE MAR 1 1235 1523 -288 1366
SINCE JUL 1 5623 7347 -1724 6851
COOLING
YESTERDAY 4 0 4 4
MONTH TO DATE 4 0 4 7
SINCE MAR 1 4 1 3 7
SINCE JAN 1 4 1 3 7
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 8.1
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 56 6:00 AM
LOWEST 8 2:00 PM
AVERAGE 32
......................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 91 2001
2007
MINIMUM TEMPERATURE (F) 42 30 2004
2005
SUNRISE AND SUNSET
MAY 12 2026...........SUNRISE 5:48 AM MDT SUNSET 8:30 PM MDT
MAY 13 2026...........SUNRISE 5:47 AM MDT SUNSET 8:31 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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