991
CDUS45 KRIW 120733
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
133 AM MDT SAT APR 12 2025
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR APRIL 11 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM MM MM 55 2003 40 MM 48
MINIMUM MM MM -9 1999 15 MM 15
AVERAGE MM 27 MM 32
PRECIPITATION (IN)
YESTERDAY MM 0.51 2022 0.08 MM 0.00
MONTH TO DATE 0.00 0.87 -0.87 0.32
SINCE MAR 1 0.00 2.77 -2.77 4.63
SINCE JAN 1 3.70 6.27 -2.57 9.10
DEGREE DAYS
HEATING
YESTERDAY MM 38 MM 33
MONTH TO DATE MM 427 MM 399
SINCE MAR 1 MM 1785 MM 1767
SINCE JUL 1 6920 9989 -3069 9241
COOLING
YESTERDAY MM 0 MM 0
MONTH TO DATE MM 0 MM 0
SINCE MAR 1 MM 0 MM 0
SINCE JAN 1 0 0 0 0
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WIND (MPH)
HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED MM
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER MM
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST MM
LOWEST MM
AVERAGE MM
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THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 40 55 2016
MINIMUM TEMPERATURE (F) 16 -5 2020
2022
SUNRISE AND SUNSET
APRIL 12 2025.........SUNRISE 6:42 AM MDT SUNSET 8:03 PM MDT
APRIL 13 2025.........SUNRISE 6:40 AM MDT SUNSET 8:05 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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