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CDUS45 KRIW 120728
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT SEP 12 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 11 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 80 10:51 AM 91 2017 79 1 85
MINIMUM 52 11:59 PM 34 2014 47 5 57
AVERAGE 66 63 3 71
PRECIPITATION (IN)
YESTERDAY 0.00 T 2000 0.02 -0.02 0.00
2005
2021
MONTH TO DATE T 0.24 -0.24 0.01
SINCE SEP 1 T 0.24 -0.24 0.01
SINCE JAN 1 2.34 4.06 -1.72 4.21
DEGREE DAYS
HEATING
YESTERDAY 0 4 -4 0
MONTH TO DATE 6 31 -25 9
SINCE SEP 1 6 31 -25 9
SINCE JUL 1 8 50 -42 9
COOLING
YESTERDAY 1 2 -1 6
MONTH TO DATE 53 32 21 39
SINCE SEP 1 53 32 21 39
SINCE JAN 1 851 728 123 780
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WIND (MPH)
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 13.9
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 63 11:00 PM
LOWEST 19 12:00 AM
AVERAGE 41
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THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 93 2017
MINIMUM TEMPERATURE (F) 46 30 2014
SUNRISE AND SUNSET
SEPTEMBER 12 2026.....SUNRISE 6:48 AM MDT SUNSET 7:28 PM MDT
SEPTEMBER 13 2026.....SUNRISE 6:49 AM MDT SUNSET 7:26 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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