317
CDUS45 KRIW 270731
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT SAT SEP 27 2025
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 26 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 83 3:08 PM 97 2015 71 12 93
MINIMUM 44 6:27 AM 29 2000 41 3 46
AVERAGE 64 56 8 70
PRECIPITATION (IN)
YESTERDAY 0.00 T 2007 0.03 -0.03 0.00
2007
2019
MONTH TO DATE 0.65 0.70 -0.05 0.38
SINCE SEP 1 0.65 0.70 -0.05 0.38
SINCE JAN 1 4.85 4.52 0.33 5.69
DEGREE DAYS
HEATING
YESTERDAY 1 9 -8 0
MONTH TO DATE 58 128 -70 59
SINCE SEP 1 58 128 -70 59
SINCE JUL 1 58 147 -89 72
COOLING
YESTERDAY 0 0 0 5
MONTH TO DATE 46 44 2 79
SINCE SEP 1 46 44 2 79
SINCE JAN 1 787 740 47 820
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 5.4
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 73 7:00 AM
LOWEST 16 3:00 PM
AVERAGE 45
......................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 91 2001
MINIMUM TEMPERATURE (F) 41 33 2000
SUNRISE AND SUNSET
SEPTEMBER 27 2025.....SUNRISE 7:06 AM MDT SUNSET 7:00 PM MDT
SEPTEMBER 28 2025.....SUNRISE 7:07 AM MDT SUNSET 6:58 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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