255
CDUS45 KRIW 110731
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT TUE AUG 11 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 10 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 4:21 PM 83 2018 72 8 63
MINIMUM 40 5:35 AM 30 2002 38 2 33
AVERAGE 60 55 5 48
PRECIPITATION (IN)
YESTERDAY 0.00 0.14 2003 0.04 -0.04 0.00
MONTH TO DATE 0.00 0.43 -0.43 0.01
SINCE JUN 1 2.96 4.32 -1.36 1.40
SINCE JAN 1 11.20 14.35 -3.15 10.63
DEGREE DAYS
HEATING
YESTERDAY 5 10 -5 17
MONTH TO DATE 66 90 -24 109
SINCE JUN 1 696 924 -228 782
SINCE JUL 1 182 386 -204 340
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 2 0 2 1
SINCE JAN 1 2 0 2 1
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 3.6
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 82 4:00 AM
LOWEST 16 12:00 PM
AVERAGE 49
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 83 2018
MINIMUM TEMPERATURE (F) 38 33 2004
SUNRISE AND SUNSET
AUGUST 11 2026........SUNRISE 6:20 AM MDT SUNSET 8:33 PM MDT
AUGUST 12 2026........SUNRISE 6:21 AM MDT SUNSET 8:31 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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