465
CDUS45 KRIW 130727
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT WED MAY 13 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 12 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 MM MM 70 2001 49 MM 64
2007
MINIMUM MM MM 17 2014 25 MM 30
AVERAGE MM 37 MM 47
PRECIPITATION (IN)
YESTERDAY 0.00 0.60 2022 0.07 -0.07 0.00
MONTH TO DATE 0.06 0.78 -0.72 0.15
SINCE MAR 1 3.98 4.96 -0.98 3.23
SINCE JAN 1 7.33 8.46 -1.13 6.93
DEGREE DAYS
HEATING
YESTERDAY MM 28 MM 18
MONTH TO DATE 273 355 -82 280
SINCE MAR 1 2345 2801 -456 1475
SINCE JUL 1 9315 11005 -1690 8395
COOLING
YESTERDAY MM 0 MM 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 4 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 1.0
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 MM 5:00 AM
LOWEST MM 10:00 AM
AVERAGE MM
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 50 70 2013
MINIMUM TEMPERATURE (F) 26 12 2014
SUNRISE AND SUNSET
MAY 13 2026...........SUNRISE 5:56 AM MDT SUNSET 8:41 PM MDT
MAY 14 2026...........SUNRISE 5:55 AM MDT SUNSET 8:42 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