Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 120726
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
126 AM MDT TUE AUG 12 2025
...................................
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 11 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 73 4:21 PM 83 2018 72 1 69
MINIMUM 36 5:47 AM 33 2004 38 -2 37
AVERAGE 55 55 0 53
PRECIPITATION (IN)
YESTERDAY 0.00 0.09 2024 0.04 -0.04 0.09
MONTH TO DATE 0.01 0.47 -0.46 0.30
SINCE JUN 1 1.40 4.36 -2.96 2.04
SINCE JAN 1 10.63 14.39 -3.76 14.24
DEGREE DAYS
HEATING
YESTERDAY 10 10 0 12
MONTH TO DATE 119 100 19 78
SINCE JUN 1 792 934 -142 769
SINCE JUL 1 350 396 -46 340
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 1 0 1 0
SINCE JAN 1 1 0 1 0
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 1.8
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 85 4:00 AM
LOWEST 28 5:00 PM
AVERAGE 57
..........................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 84 2003
MINIMUM TEMPERATURE (F) 38 31 2004
SUNRISE AND SUNSET
AUGUST 12 2025........SUNRISE 6:21 AM MDT SUNSET 8:31 PM MDT
AUGUST 13 2025........SUNRISE 6:23 AM MDT SUNSET 8:30 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$