094
CDUS45 KRIW 120732
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT TUE MAY 12 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 11 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 69R 4:03 PM 68 2007 49 20 61
MINIMUM 29 5:36 AM 15 2022 25 4 31
AVERAGE 49 37 12 46
PRECIPITATION (IN)
YESTERDAY 0.00 0.20 2008 0.07 -0.07 0.12
MONTH TO DATE 0.06 0.71 -0.65 0.15
SINCE MAR 1 3.98 4.89 -0.91 3.23
SINCE JAN 1 7.33 8.39 -1.06 6.93
DEGREE DAYS
HEATING
YESTERDAY 16 28 -12 19
MONTH TO DATE 273 327 -54 262
SINCE MAR 1 2345 2773 -428 1457
SINCE JUL 1 9315 10977 -1662 8377
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 23 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 4.1
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 85 4:00 AM
LOWEST 16 12:00 PM
AVERAGE 51
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 49 70 2001
2007
MINIMUM TEMPERATURE (F) 25 17 2014
SUNRISE AND SUNSET
MAY 12 2026...........SUNRISE 5:57 AM MDT SUNSET 8:39 PM MDT
MAY 13 2026...........SUNRISE 5:56 AM MDT SUNSET 8:41 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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