685
CDUS45 KRIW 290728
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT AUG 29 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 28 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 61 4:45 PM 82 2012 68 -7 53
MINIMUM 49 2:15 AM 28 2008 34 15 41
AVERAGE 55 51 4 47
PRECIPITATION (IN)
YESTERDAY 0.21 0.68 2025 0.04 0.17 0.68
MONTH TO DATE 2.32 1.19 1.13 1.05
SINCE JUN 1 5.28 5.08 0.20 2.44
SINCE JAN 1 13.52 15.11 -1.59 11.67
DEGREE DAYS
HEATING
YESTERDAY 10 14 -4 18
MONTH TO DATE 205 302 -97 243
SINCE JUN 1 835 1136 -301 916
SINCE JUL 1 321 598 -277 474
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 2 0 2 1
SINCE JAN 1 2 0 2 1
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 0.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 11:00 AM
LOWEST 64 5:00 PM
AVERAGE 80
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THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 78 2005
MINIMUM TEMPERATURE (F) 34 26 2024
SUNRISE AND SUNSET
AUGUST 29 2026........SUNRISE 6:41 AM MDT SUNSET 8:03 PM MDT
AUGUST 30 2026........SUNRISE 6:42 AM MDT SUNSET 8:01 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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