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CDUS45 KRIW 200729
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
129 AM MDT THU AUG 20 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR AUGUST 19 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 91 4:17 PM 101 2025 88 3 101
MINIMUM 50 5:46 AM 41 2015 55 -5 55
AVERAGE 71 72 -1 78
PRECIPITATION (IN)
YESTERDAY 0.00 0.22 2016 0.01 -0.01 0.00
MONTH TO DATE 0.17 0.11 0.06 0.12
SINCE JUN 1 0.91 1.35 -0.44 1.44
SINCE JAN 1 2.33 3.70 -1.37 4.15
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 1 0 1 0
SINCE JUN 1 45 66 -21 46
SINCE JUL 1 1 4 -3 0
COOLING
YESTERDAY 6 7 -1 13
MONTH TO DATE 156 174 -18 185
SINCE JUN 1 656 605 51 625
SINCE JAN 1 702 629 73 646
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WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 3.5
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 93 6:00 AM
LOWEST 13 3:00 PM
AVERAGE 53
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THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 101 2025
MINIMUM TEMPERATURE (F) 55 45 2016
SUNRISE AND SUNSET
AUGUST 20 2026........SUNRISE 6:21 AM MDT SUNSET 8:09 PM MDT
AUGUST 21 2026........SUNRISE 6:22 AM MDT SUNSET 8:08 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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