248
CDUS45 KRIW 230727
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT SAT AUG 23 2025
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 22 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 79 4:37 PM 83 2009 69 10 77
MINIMUM 40 5:50 AM 27 2008 36 4 33
AVERAGE 60 53 7 55
PRECIPITATION (IN)
YESTERDAY 0.00 0.34 2004 0.04 -0.04 0.00
MONTH TO DATE 0.09 0.93 -0.84 1.01
SINCE JUN 1 1.48 4.82 -3.34 2.75
SINCE JAN 1 10.71 14.85 -4.14 14.95
DEGREE DAYS
HEATING
YESTERDAY 5 12 -7 10
MONTH TO DATE 186 222 -36 192
SINCE JUN 1 859 1056 -197 883
SINCE JUL 1 417 518 -101 454
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 12 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 1.5
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 10 5:00 PM
AVERAGE 48
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 79 2006
2020
MINIMUM TEMPERATURE (F) 36 27 2015
SUNRISE AND SUNSET
AUGUST 23 2025........SUNRISE 6:34 AM MDT SUNSET 8:13 PM MDT
AUGUST 24 2025........SUNRISE 6:35 AM MDT SUNSET 8:12 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page