Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 210732
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT MON JUL 21 2025
...................................
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR JULY 20 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 73 2:21 PM 84 2003 74 -1 75
MINIMUM 39 5:38 AM 33 2010 40 -1 43
AVERAGE 56 57 -1 59
PRECIPITATION (IN)
YESTERDAY 0.00 0.20 2021 0.05 -0.05 0.00
MONTH TO DATE 0.49 0.98 -0.49 0.40
SINCE JUN 1 1.14 3.36 -2.22 1.64
SINCE JAN 1 10.37 13.39 -3.02 13.84
DEGREE DAYS
HEATING
YESTERDAY 9 8 1 6
MONTH TO DATE 153 206 -53 179
SINCE JUN 1 595 744 -149 608
SINCE JUL 1 153 206 -53 179
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 14 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 3.2
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 23 6:00 PM
AVERAGE 55
..........................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 84 2007
MINIMUM TEMPERATURE (F) 40 34 2000
2010
2011
SUNRISE AND SUNSET
JULY 21 2025..........SUNRISE 5:57 AM MDT SUNSET 8:59 PM MDT
JULY 22 2025..........SUNRISE 5:58 AM MDT SUNSET 8:58 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$