212
CDUS45 KRIW 100731
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT WED SEP 10 2025
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 9 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 86 4:04 PM 97 2021 80 6 90
MINIMUM 48 6:14 AM 29 2020 48 0 51
AVERAGE 67 64 3 71
PRECIPITATION (IN)
YESTERDAY 0.01 0.26 2002 0.02 -0.01 0.00
MONTH TO DATE 0.01 0.19 -0.18 0.03
SINCE SEP 1 0.01 0.19 -0.18 0.03
SINCE JAN 1 4.21 4.01 0.20 5.34
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 0
MONTH TO DATE 9 23 -14 0
SINCE SEP 1 9 23 -14 0
SINCE JUL 1 9 42 -33 13
COOLING
YESTERDAY 2 2 0 6
MONTH TO DATE 28 28 0 53
SINCE SEP 1 28 28 0 53
SINCE JAN 1 769 724 45 794
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 4.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 66 4:00 AM
LOWEST 17 5:00 PM
AVERAGE 42
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THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 94 2021
MINIMUM TEMPERATURE (F) 47 33 2007
2020
SUNRISE AND SUNSET
SEPTEMBER 10 2025.....SUNRISE 6:46 AM MDT SUNSET 7:31 PM MDT
SEPTEMBER 11 2025.....SUNRISE 6:47 AM MDT SUNSET 7:30 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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