688
CDUS45 KRIW 290728
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT AUG 29 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR AUGUST 28 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 81 1:25 PM 98 2012 85 -4 85
MINIMUM 65 11:59 PM 42 2004 52 13 59
AVERAGE 73 69 4 72
PRECIPITATION (IN)
YESTERDAY 0.01 0.25 2018 0.01 0.00 T
MONTH TO DATE 0.18 0.19 -0.01 0.12
SINCE JUN 1 0.92 1.43 -0.51 1.44
SINCE JAN 1 2.34 3.78 -1.44 4.15
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 1 7 -6 0
SINCE JUN 1 45 73 -28 46
SINCE JUL 1 1 11 -10 0
COOLING
YESTERDAY 8 5 3 7
MONTH TO DATE 245 227 18 264
SINCE JUN 1 745 658 87 704
SINCE JAN 1 791 682 109 725
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WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 5.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 68 11:00 PM
LOWEST 29 12:00 AM
AVERAGE 49
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THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 100 2012
MINIMUM TEMPERATURE (F) 52 42 2018
SUNRISE AND SUNSET
AUGUST 29 2026........SUNRISE 6:32 AM MDT SUNSET 7:54 PM MDT
AUGUST 30 2026........SUNRISE 6:33 AM MDT SUNSET 7:52 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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