988
CDUS45 KRIW 210727
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT FRI AUG 21 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR AUGUST 20 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 98 4:12 PM 101 2025 88 10 101
MINIMUM 52 5:58 AM 45 2016 55 -3 59
AVERAGE 75 71 4 80
PRECIPITATION (IN)
YESTERDAY 0.00 0.59 2021 0.00 0.00 T
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 10 7 3 15
MONTH TO DATE 166 181 -15 200
SINCE JUN 1 666 612 54 640
SINCE JAN 1 712 636 76 661
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 4.4
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 80 6:00 AM
LOWEST 12 5:00 PM
AVERAGE 46
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THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 101 2023
2024
MINIMUM TEMPERATURE (F) 55 47 2016
2021
SUNRISE AND SUNSET
AUGUST 21 2026........SUNRISE 6:22 AM MDT SUNSET 8:08 PM MDT
AUGUST 22 2026........SUNRISE 6:23 AM MDT SUNSET 8:06 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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