791
CDUS45 KRIW 150727
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT FRI AUG 15 2025
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 14 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 78 3:50 PM 84 2003 71 7 59
MINIMUM 39 5:43 AM 29 2005 38 1 35
AVERAGE 59 54 5 47
PRECIPITATION (IN)
YESTERDAY 0.00 0.33 2015 0.05 -0.05 0.20
MONTH TO DATE 0.05 0.60 -0.55 0.82
SINCE JUN 1 1.44 4.49 -3.05 2.56
SINCE JAN 1 10.67 14.52 -3.85 14.76
DEGREE DAYS
HEATING
YESTERDAY 6 10 -4 18
MONTH TO DATE 133 130 3 123
SINCE JUN 1 806 964 -158 814
SINCE JUL 1 364 426 -62 385
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 15 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 2.9
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 18 2:00 PM
AVERAGE 52
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 81 2003
2023
MINIMUM TEMPERATURE (F) 37 29 2009
SUNRISE AND SUNSET
AUGUST 15 2025........SUNRISE 6:25 AM MDT SUNSET 8:26 PM MDT
AUGUST 16 2025........SUNRISE 6:26 AM MDT SUNSET 8:25 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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