Climatological Report (Daily)
Issued by NWS
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CDUS45 KRIW 240727
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT WED SEP 24 2025
...................................
...THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 23 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 71 3:44 PM 89 2015 73 -2 78
MINIMUM 44 7:12 AM 29 2000 42 2 41
AVERAGE 58 58 0 60
PRECIPITATION (IN)
YESTERDAY T 0.87 2016 0.03 -0.03 0.00
MONTH TO DATE 0.65 0.60 0.05 0.38
SINCE SEP 1 0.65 0.60 0.05 0.38
SINCE JAN 1 4.85 4.42 0.43 5.69
DEGREE DAYS
HEATING
YESTERDAY 7 8 -1 5
MONTH TO DATE 54 102 -48 56
SINCE SEP 1 54 102 -48 56
SINCE JUL 1 54 121 -67 69
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 46 44 2 69
SINCE SEP 1 46 44 2 69
SINCE JAN 1 787 740 47 810
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 4.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 4:00 AM
LOWEST 39 4:00 PM
AVERAGE 70
..........................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 92 2020
MINIMUM TEMPERATURE (F) 42 28 2000
SUNRISE AND SUNSET
SEPTEMBER 24 2025.....SUNRISE 7:02 AM MDT SUNSET 7:05 PM MDT
SEPTEMBER 25 2025.....SUNRISE 7:03 AM MDT SUNSET 7:03 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$