146
CDUS45 KRIW 090728
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT WED SEP 09 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 8 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 81 4:39 PM 93 2005 81 0 86
2024
MINIMUM 41 5:50 AM 34 2008 48 -7 50
AVERAGE 61 64 -3 68
PRECIPITATION (IN)
YESTERDAY 0.00 0.68 2022 0.03 -0.03 0.00
MONTH TO DATE T 0.17 -0.17 T
SINCE SEP 1 T 0.17 -0.17 T
SINCE JAN 1 2.34 3.99 -1.65 4.20
DEGREE DAYS
HEATING
YESTERDAY 4 3 1 0
MONTH TO DATE 4 20 -16 9
SINCE SEP 1 4 20 -16 9
SINCE JUL 1 6 39 -33 9
COOLING
YESTERDAY 0 2 -2 3
MONTH TO DATE 50 26 24 26
SINCE SEP 1 50 26 24 26
SINCE JAN 1 848 722 126 767
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 8.0
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 57 6:00 AM
LOWEST 9 4:00 PM
AVERAGE 33
......................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 97 2021
MINIMUM TEMPERATURE (F) 48 29 2020
SUNRISE AND SUNSET
SEPTEMBER 9 2026.....SUNRISE 6:44 AM MDT SUNSET 7:34 PM MDT
SEPTEMBER 10 2026.....SUNRISE 6:46 AM MDT SUNSET 7:32 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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