Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 290730
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT FRI AUG 29 2025
...................................
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 28 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 53 6:28 PM 82 2012 68 -15 60
MINIMUM 41 11:56 PM 28 2008 34 7 33
AVERAGE 47 51 -4 47
PRECIPITATION (IN)
YESTERDAY 0.68R 0.56 2010 0.04 0.64 0.00
MONTH TO DATE 1.05 1.19 -0.14 1.25
SINCE JUN 1 2.44 5.08 -2.64 2.99
SINCE JAN 1 11.67 15.11 -3.44 15.19
DEGREE DAYS
HEATING
YESTERDAY 18 14 4 18
MONTH TO DATE 243 302 -59 274
SINCE JUN 1 916 1136 -220 965
SINCE JUL 1 474 598 -124 536
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 8 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 0.8
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 100 1:00 AM
LOWEST 89 8:00 AM
AVERAGE 95
..........................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 78 2005
MINIMUM TEMPERATURE (F) 34 26 2024
SUNRISE AND SUNSET
AUGUST 29 2025........SUNRISE 6:41 AM MDT SUNSET 8:03 PM MDT
AUGUST 30 2025........SUNRISE 6:42 AM MDT SUNSET 8:01 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$