620
CDUS45 KRIW 021641
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
136 AM MDT THU MAY 01 2025
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR APRIL 30 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 42 2:34 PM 63 2021 45 -3 35
MINIMUM 26 11:11 PM 9 2011 21 5 20
AVERAGE 34 33 1 28
PRECIPITATION (IN)
YESTERDAY 0.05 0.43 2002 0.06 -0.01 0.07
MONTH TO DATE 2.59 2.28 0.31 1.02
SINCE MAR 1 3.08 4.18 -1.10 5.33
SINCE JAN 1 6.73 7.68 -0.95 9.80
DEGREE DAYS
HEATING
YESTERDAY 31 32 2 37
MONTH TO DATE 1051 1089 -38 784
SINCE MAR 1 1164 2447 -1283 2152
SINCE JUL 1 8084 10651 -2567 9626
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 10 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 1.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER MM
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
LIGHT SNOW
RELATIVE HUMIDITY (PERCENT)
HIGHEST MM
LOWEST MM
AVERAGE MM
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 62 2007
2023
MINIMUM TEMPERATURE (F) 21 3 2019
SUNRISE AND SUNSET
MAY 1 2025...........SUNRISE 6:11 AM MDT SUNSET 8:27 PM MDT
MAY 2 2025...........SUNRISE 6:10 AM MDT SUNSET 8:28 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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