486
CDUS45 KRIW 110728
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT APR 11 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR APRIL 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 52 2:39 PM 57 2023 39 13 54
MINIMUM 23 6:08 AM -8 2010 15 8 16
AVERAGE 38 27 11 35
PRECIPITATION (IN)
YESTERDAY 0.00 0.62 2002 0.08 -0.08 0.00
MONTH TO DATE 0.45 0.79 -0.34 0.46
SINCE MAR 1 1.56 2.69 -1.13 0.95
SINCE JAN 1 4.91 6.19 -1.28 4.65
DEGREE DAYS
HEATING
YESTERDAY 27 38 -11 30
MONTH TO DATE 306 389 -83 398
SINCE MAR 1 1365 1747 -382 542
SINCE JUL 1 8335 9951 -1616 7462
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 16 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 1.6
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 92 9:00 PM
LOWEST 36 12:00 PM
AVERAGE 64
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THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 40 58 2025
MINIMUM TEMPERATURE (F) 15 -9 1999
SUNRISE AND SUNSET
APRIL 11 2026.........SUNRISE 6:44 AM MDT SUNSET 8:02 PM MDT
APRIL 12 2026.........SUNRISE 6:43 AM MDT SUNSET 8:03 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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