Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 280726
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
126 AM MDT THU AUG 28 2025
...................................
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 27 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 59 10:52 AM 79 2011 68 -9 69
2012
2017
MINIMUM 49 5:49 AM 29 2019 35 14 30
AVERAGE 54 51 3 50
PRECIPITATION (IN)
YESTERDAY 0.28 1.03 2018 0.05 0.23 0.00
MONTH TO DATE 0.37 1.15 -0.78 1.25
SINCE JUN 1 1.76 5.04 -3.28 2.99
SINCE JAN 1 10.99 15.07 -4.08 15.19
DEGREE DAYS
HEATING
YESTERDAY 11 14 -3 15
MONTH TO DATE 225 288 -63 256
SINCE JUN 1 898 1122 -224 947
SINCE JUL 1 456 584 -128 518
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 5 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 0.5
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 9:00 PM
LOWEST 58 10:00 AM
AVERAGE 79
..........................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 82 2012
MINIMUM TEMPERATURE (F) 34 28 2008
SUNRISE AND SUNSET
AUGUST 28 2025........SUNRISE 6:40 AM MDT SUNSET 8:05 PM MDT
AUGUST 29 2025........SUNRISE 6:41 AM MDT SUNSET 8:03 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$