Climatological Report (Daily)
Issued by NWS
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CDUS45 KRIW 020728
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT TUE SEP 02 2025
...................................
...THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 1 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 92 3:52 PM 100 2022 84 8 95
MINIMUM 48 5:53 AM 40 2020 51 -3 50
AVERAGE 70 67 3 73
PRECIPITATION (IN)
YESTERDAY 0.00 0.73 2008 0.02 -0.02 0.00
MONTH TO DATE 0.00 0.02 -0.02 0.00
SINCE SEP 1 0.00 0.02 -0.02 0.00
SINCE JAN 1 4.20 3.84 0.36 5.31
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 0 2 -2 0
SINCE SEP 1 0 2 -2 0
SINCE JUL 1 0 21 -21 13
COOLING
YESTERDAY 5 4 1 8
MONTH TO DATE 5 4 1 8
SINCE SEP 1 5 4 1 8
SINCE JAN 1 746 700 46 749
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 4.2
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 68 7:00 AM
LOWEST 10 5:00 PM
AVERAGE 39
..........................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 99 2024
MINIMUM TEMPERATURE (F) 50 37 2006
SUNRISE AND SUNSET
SEPTEMBER 2 2025.....SUNRISE 6:37 AM MDT SUNSET 7:46 PM MDT
SEPTEMBER 3 2025.....SUNRISE 6:38 AM MDT SUNSET 7:44 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$