Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 200727
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT SUN JUL 20 2025
...................................
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR JULY 19 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 72 1:38 PM 86 2021 74 -2 76
MINIMUM 39 5:41 AM 32 2022 40 -1 43
AVERAGE 56 56 0 60
PRECIPITATION (IN)
YESTERDAY 0.00 0.21 2009 0.05 -0.05 0.07
MONTH TO DATE 0.49 0.93 -0.44 0.40
SINCE JUN 1 1.14 3.31 -2.17 1.64
SINCE JAN 1 10.37 13.34 -2.97 13.84
DEGREE DAYS
HEATING
YESTERDAY 9 8 1 5
MONTH TO DATE 144 198 -54 173
SINCE JUN 1 586 736 -150 602
SINCE JUL 1 144 198 -54 173
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 16 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 4.3
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 1:00 AM
LOWEST 23 7:00 PM
AVERAGE 62
..........................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 84 2003
MINIMUM TEMPERATURE (F) 40 33 2010
SUNRISE AND SUNSET
JULY 20 2025..........SUNRISE 5:56 AM MDT SUNSET 9:00 PM MDT
JULY 21 2025..........SUNRISE 5:57 AM MDT SUNSET 8:59 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$