159
CDUS45 KRIW 270728
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SUN SEP 27 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 26 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 82 4:47 PM 97 2015 71 11 83
MINIMUM 48 6:41 AM 29 2000 41 7 44
AVERAGE 65 56 9 64
PRECIPITATION (IN)
YESTERDAY 0.00 T 2007 0.03 -0.03 0.00
2007
2019
MONTH TO DATE 0.15 0.70 -0.55 0.65
SINCE SEP 1 0.15 0.70 -0.55 0.65
SINCE JAN 1 2.49 4.52 -2.03 4.85
DEGREE DAYS
HEATING
YESTERDAY 0 9 -9 1
MONTH TO DATE 49 128 -79 58
SINCE SEP 1 49 128 -79 58
SINCE JUL 1 51 147 -96 58
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 57 44 13 46
SINCE SEP 1 57 44 13 46
SINCE JAN 1 855 740 115 787
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WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 6.5
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 18 5:00 PM
AVERAGE 43
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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 2026.....SUNRISE 7:05 AM MDT SUNSET 7:00 PM MDT
SEPTEMBER 28 2026.....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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