Climatological Report (Daily)
Issued by NWS
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CDUS45 KRIW 030729
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
129 AM MDT WED SEP 03 2025
...................................
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR SEPTEMBER 2 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 MM MM 79 2007 66 MM 77
2017
2019
MINIMUM MM MM 25 2006 33 MM 36
AVERAGE MM 50 MM 57
PRECIPITATION (IN)
YESTERDAY 0.00 0.33 2013 0.04 -0.04 0.00
MONTH TO DATE 0.00 0.09 -0.09 0.00
SINCE SEP 1 0.00 0.09 -0.09 0.00
SINCE JAN 1 11.71 15.35 -3.64 15.19
DEGREE DAYS
HEATING
YESTERDAY MM 15 MM 8
MONTH TO DATE 11 30 -19 15
SINCE SEP 1 11 30 -19 15
SINCE JUL 1 527 672 -145 592
COOLING
YESTERDAY MM 0 MM 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 MM HIGHEST WIND DIRECTION MM
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED MM
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER MM
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST MM
LOWEST MM
AVERAGE MM
..........................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 80 2022
MINIMUM TEMPERATURE (F) 33 27 2010
SUNRISE AND SUNSET
SEPTEMBER 3 2025.....SUNRISE 6:47 AM MDT SUNSET 7:54 PM MDT
SEPTEMBER 4 2025.....SUNRISE 6:48 AM MDT SUNSET 7:52 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$