Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 310727
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT THU JUL 31 2025
...................................
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR JULY 30 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 71 11:57 AM 82 2000 74 -3 68
2012
MINIMUM 42 11:59 PM 29 2009 40 2 37
AVERAGE 57 57 0 53
PRECIPITATION (IN)
YESTERDAY 0.25R 0.23 2013 0.05 0.20 0.07
MONTH TO DATE 0.74 1.47 -0.73 0.50
SINCE JUN 1 1.39 3.85 -2.46 1.74
SINCE JAN 1 10.62 13.88 -3.26 13.94
DEGREE DAYS
HEATING
YESTERDAY 8 8 0 12
MONTH TO DATE 224 286 -62 251
SINCE JUN 1 666 824 -158 680
SINCE JUL 1 224 286 -62 251
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 1 0 1 0
SINCE JUN 1 1 0 1 0
SINCE JAN 1 1 0 1 0
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 1.6
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 10:00 PM
LOWEST 32 2:00 AM
AVERAGE 66
..........................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 86 2000
MINIMUM TEMPERATURE (F) 40 34 2001
2008
SUNRISE AND SUNSET
JULY 31 2025..........SUNRISE 6:08 AM MDT SUNSET 8:48 PM MDT
AUGUST 1 2025........SUNRISE 6:09 AM MDT SUNSET 8:46 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$