Climatological Report (Daily)
Issued by NWS
Issued by NWS
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891
CDUS45 KRIW 110727
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT MON AUG 11 2025
...................................
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 10 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 63 5:08 PM 83 2018 72 -9 61
MINIMUM 33 5:03 AM 30 2002 38 -5 42
AVERAGE 48 55 -7 52
PRECIPITATION (IN)
YESTERDAY 0.00 0.14 2003 0.04 -0.04 0.11
MONTH TO DATE 0.01 0.43 -0.42 0.21
SINCE JUN 1 1.40 4.32 -2.92 1.95
SINCE JAN 1 10.63 14.35 -3.72 14.15
DEGREE DAYS
HEATING
YESTERDAY 17 10 7 13
MONTH TO DATE 109 90 19 66
SINCE JUN 1 782 924 -142 757
SINCE JUL 1 340 386 -46 328
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 7 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 1.4
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 82 6:00 AM
LOWEST 36 1:00 PM
AVERAGE 59
..........................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 83 2018
MINIMUM TEMPERATURE (F) 38 33 2004
SUNRISE AND SUNSET
AUGUST 11 2025........SUNRISE 6:20 AM MDT SUNSET 8:33 PM MDT
AUGUST 12 2025........SUNRISE 6:21 AM MDT SUNSET 8:31 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$