030
CDUS45 KRIW 220732
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT MON SEP 22 2025
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 21 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 86R 2:50 PM 86 2013 74 12 67
2015
MINIMUM 43 6:04 AM 32 1999 43 0 44
2000
2021
AVERAGE 65 58 7 56
PRECIPITATION (IN)
YESTERDAY 0.00 0.15 2006 0.03 -0.03 0.00
2006
2019
MONTH TO DATE 0.12 0.54 -0.42 0.38
SINCE SEP 1 0.12 0.54 -0.42 0.38
SINCE JAN 1 4.32 4.36 -0.04 5.69
DEGREE DAYS
HEATING
YESTERDAY 0 7 -7 9
MONTH TO DATE 41 86 -45 42
SINCE SEP 1 41 86 -45 42
SINCE JUL 1 41 105 -64 55
COOLING
YESTERDAY 0 1 -1 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 18 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (280)
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 74 5:00 AM
LOWEST 15 4:00 PM
AVERAGE 45
......................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 90 2007
MINIMUM TEMPERATURE (F) 43 30 2002
2003
SUNRISE AND SUNSET
SEPTEMBER 22 2025.....SUNRISE 7:00 AM MDT SUNSET 7:09 PM MDT
SEPTEMBER 23 2025.....SUNRISE 7:01 AM MDT SUNSET 7:07 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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