758
CDUS45 KRIW 010730
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT TUE SEP 01 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 31 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 69 3:42 PM 79 2016 67 2 69
MINIMUM 28 6:23 AM 25 2005 34 -6 34
AVERAGE 49 50 -1 52
PRECIPITATION (IN)
YESTERDAY 0.00 0.29 2017 0.05 -0.05 0.00
MONTH TO DATE 2.72 1.34 1.38 1.09
SINCE JUN 1 5.68 5.23 0.45 2.48
SINCE JAN 1 13.92 15.26 -1.34 11.71
DEGREE DAYS
HEATING
YESTERDAY 16 15 1 13
MONTH TO DATE 252 345 -93 285
SINCE JUN 1 882 1179 -297 958
SINCE JUL 1 368 641 -273 516
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 10 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 2.3
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 88 4:00 AM
LOWEST 19 4:00 PM
AVERAGE 54
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 80 2022
MINIMUM TEMPERATURE (F) 33 25 2006
SUNRISE AND SUNSET
SEPTEMBER 1 2026.....SUNRISE 6:44 AM MDT SUNSET 7:58 PM MDT
SEPTEMBER 2 2026.....SUNRISE 6:46 AM MDT SUNSET 7:56 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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