197
CDUS45 KRIW 110727
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT MON MAY 11 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 10 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 63 3:31 PM 68 2025 49 14 68
MINIMUM 25 5:32 AM 8 2022 25 0 28
AVERAGE 44 37 7 48
PRECIPITATION (IN)
YESTERDAY 0.00 0.25 2005 0.07 -0.07 0.01
MONTH TO DATE 0.06 0.64 -0.58 0.03
SINCE MAR 1 3.98 4.82 -0.84 3.11
SINCE JAN 1 7.33 8.32 -0.99 6.81
DEGREE DAYS
HEATING
YESTERDAY 21 28 -7 17
MONTH TO DATE 257 299 -42 243
SINCE MAR 1 2329 2745 -416 1438
SINCE JUL 1 9299 10949 -1650 8358
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 2.7
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 88 4:00 AM
LOWEST 16 4:00 PM
AVERAGE 52
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 49 68 2007
MINIMUM TEMPERATURE (F) 25 15 2022
SUNRISE AND SUNSET
MAY 11 2026...........SUNRISE 5:58 AM MDT SUNSET 8:38 PM MDT
MAY 12 2026...........SUNRISE 5:57 AM MDT SUNSET 8:39 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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