Climatological Report (Daily)
Issued by NWS
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CDUS45 KRIW 080728
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT MON SEP 08 2025
...................................
...THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 7 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 81 3:49 PM 103 2022 81 0 91
MINIMUM 46 6:28 AM 34 2010 48 -2 50
AVERAGE 64 65 -1 71
PRECIPITATION (IN)
YESTERDAY T 0.32 2020 0.02 -0.02 0.00
MONTH TO DATE T 0.14 -0.14 0.03
SINCE SEP 1 T 0.14 -0.14 0.03
SINCE JAN 1 4.20 3.96 0.24 5.34
DEGREE DAYS
HEATING
YESTERDAY 1 3 -2 0
MONTH TO DATE 9 17 -8 0
SINCE SEP 1 9 17 -8 0
SINCE JUL 1 9 36 -27 13
COOLING
YESTERDAY 0 3 -3 6
MONTH TO DATE 23 24 -1 41
SINCE SEP 1 23 24 -1 41
SINCE JAN 1 764 720 44 782
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 45 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 3.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 68 6:00 PM
LOWEST 21 12:00 PM
AVERAGE 45
..........................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 93 2005
2024
MINIMUM TEMPERATURE (F) 48 34 2008
SUNRISE AND SUNSET
SEPTEMBER 8 2025.....SUNRISE 6:43 AM MDT SUNSET 7:35 PM MDT
SEPTEMBER 9 2025.....SUNRISE 6:45 AM MDT SUNSET 7:33 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$