Climatological Report (Daily)
Issued by NWS
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006
CDUS45 KRIW 270732
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT WED AUG 27 2025
...................................
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 26 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 69 11:40 AM 80 2010 68 1 61
2011
MINIMUM 47 5:04 AM 29 2005 35 12 35
2019
AVERAGE 58 52 6 48
PRECIPITATION (IN)
YESTERDAY 0.00 0.28 2023 0.04 -0.04 0.10
MONTH TO DATE 0.09 1.10 -1.01 1.25
SINCE JUN 1 1.48 4.99 -3.51 2.99
SINCE JAN 1 10.71 15.02 -4.31 15.19
DEGREE DAYS
HEATING
YESTERDAY 7 13 -6 17
MONTH TO DATE 214 274 -60 241
SINCE JUN 1 887 1108 -221 932
SINCE JUL 1 445 570 -125 503
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 6 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 0.6
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 72 10:00 PM
LOWEST 35 1:00 PM
AVERAGE 54
..........................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 79 2011
2012
2017
MINIMUM TEMPERATURE (F) 35 29 2019
SUNRISE AND SUNSET
AUGUST 27 2025........SUNRISE 6:39 AM MDT SUNSET 8:06 PM MDT
AUGUST 28 2025........SUNRISE 6:40 AM MDT SUNSET 8:05 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$