Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 220726
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
126 AM MDT FRI AUG 22 2025
...................................
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 21 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 80 4:19 PM 82 2009 70 10 73
MINIMUM 40 6:09 AM 32 2000 36 4 39
2021
AVERAGE 60 53 7 56
PRECIPITATION (IN)
YESTERDAY 0.00 0.64 2004 0.04 -0.04 0.00
MONTH TO DATE 0.09 0.89 -0.80 1.01
SINCE JUN 1 1.48 4.78 -3.30 2.75
SINCE JAN 1 10.71 14.81 -4.10 14.95
DEGREE DAYS
HEATING
YESTERDAY 5 12 -7 9
MONTH TO DATE 181 210 -29 182
SINCE JUN 1 854 1044 -190 873
SINCE JUL 1 412 506 -94 444
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 14 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 3.4
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 86 5:00 AM
LOWEST 10 5:00 PM
AVERAGE 48
..........................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 83 2009
MINIMUM TEMPERATURE (F) 36 27 2008
SUNRISE AND SUNSET
AUGUST 22 2025........SUNRISE 6:33 AM MDT SUNSET 8:15 PM MDT
AUGUST 23 2025........SUNRISE 6:34 AM MDT SUNSET 8:13 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$