394
CDUS45 KRIW 280727
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT MON SEP 28 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 27 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 74 4:31 PM 91 2001 70 4 82
MINIMUM 50 8:13 AM 33 2000 41 9 42
AVERAGE 62 56 6 62
PRECIPITATION (IN)
YESTERDAY T R T 2004 0.04 -0.04 0.00
2018
2020
MONTH TO DATE 0.15 0.74 -0.59 0.65
SINCE SEP 1 0.15 0.74 -0.59 0.65
SINCE JAN 1 2.49 4.56 -2.07 4.85
DEGREE DAYS
HEATING
YESTERDAY 3 10 -7 3
MONTH TO DATE 52 138 -86 61
SINCE SEP 1 52 138 -86 61
SINCE JUL 1 54 157 -103 61
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 24 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 9.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 48 8:00 AM
LOWEST 24 4:00 PM
AVERAGE 36
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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 2026.....SUNRISE 7:07 AM MDT SUNSET 6:58 PM MDT
SEPTEMBER 29 2026.....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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