601
CDUS45 KRIW 250730
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT TUE AUG 25 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 24 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 75 2:01 PM 80 2020 69 6 78
MINIMUM 40 6:13 AM 28 2010 35 5 39
AVERAGE 58 52 6 59
PRECIPITATION (IN)
YESTERDAY 0.00 0.83 2022 0.04 -0.04 0.00
MONTH TO DATE 2.11 1.02 1.09 0.09
SINCE JUN 1 5.07 4.91 0.16 1.48
SINCE JAN 1 13.31 14.94 -1.63 10.71
DEGREE DAYS
HEATING
YESTERDAY 7 13 -6 6
MONTH TO DATE 179 248 -69 198
SINCE JUN 1 809 1082 -273 871
SINCE JUL 1 295 544 -249 429
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 16 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 2.8
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 5:00 AM
LOWEST 24 4:00 PM
AVERAGE 59
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 80 2008
2015
MINIMUM TEMPERATURE (F) 35 28 2005
2016
SUNRISE AND SUNSET
AUGUST 25 2026........SUNRISE 6:36 AM MDT SUNSET 8:10 PM MDT
AUGUST 26 2026........SUNRISE 6:37 AM MDT SUNSET 8:09 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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