422
CDUS45 KRIW 060729
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
129 AM MDT SAT SEP 06 2025
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR SEPTEMBER 5 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 68 5:17 PM 82 2020 65 3 70
MINIMUM 33 6:17 AM 24 2008 33 0 34
AVERAGE 51 49 2 52
PRECIPITATION (IN)
YESTERDAY 0.00 0.21 2015 0.05 -0.05 0.00
MONTH TO DATE 0.00 0.24 -0.24 0.14
SINCE SEP 1 0.00 0.24 -0.24 0.14
SINCE JAN 1 11.71 15.50 -3.79 15.33
DEGREE DAYS
HEATING
YESTERDAY 14 16 -2 13
MONTH TO DATE 52 78 -26 51
SINCE SEP 1 52 78 -26 51
SINCE JUL 1 568 720 -152 628
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JAN 1 1 0 1 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 1.9
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 96 6:00 AM
LOWEST 15 5:00 PM
AVERAGE 56
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THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 82 2022
MINIMUM TEMPERATURE (F) 32 22 2010
SUNRISE AND SUNSET
SEPTEMBER 6 2025.....SUNRISE 6:51 AM MDT SUNSET 7:48 PM MDT
SEPTEMBER 7 2025.....SUNRISE 6:52 AM MDT SUNSET 7:46 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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