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CDUS45 KRIW 280729
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
129 AM MDT SUN SEP 28 2025
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 27 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 82 4:29 PM 91 2001 70 12 89
MINIMUM 42 5:35 AM 33 2000 41 1 44
AVERAGE 62 56 6 67
PRECIPITATION (IN)
YESTERDAY 0.00 T 2004 0.04 -0.04 0.00
2018
2020
MONTH TO DATE 0.65 0.74 -0.09 0.38
SINCE SEP 1 0.65 0.74 -0.09 0.38
SINCE JAN 1 4.85 4.56 0.29 5.69
DEGREE DAYS
HEATING
YESTERDAY 3 10 -7 0
MONTH TO DATE 61 138 -77 59
SINCE SEP 1 61 138 -77 59
SINCE JUL 1 61 157 -96 72
COOLING
YESTERDAY 0 0 0 2
MONTH TO DATE 46 44 2 81
SINCE SEP 1 46 44 2 81
SINCE JAN 1 787 740 47 822
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WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 3.1
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 82 7:00 AM
LOWEST 17 4:00 PM
AVERAGE 50
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THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 92 2001
MINIMUM TEMPERATURE (F) 40 28 1999
SUNRISE AND SUNSET
SEPTEMBER 28 2025.....SUNRISE 7:07 AM MDT SUNSET 6:58 PM MDT
SEPTEMBER 29 2025.....SUNRISE 7:08 AM MDT SUNSET 6:56 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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