344
CDUS45 KRIW 220727
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT WED APR 22 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR APRIL 21 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 63R 4:21 PM 56 2009 42 21 41
2016
MINIMUM 27 6:21 AM 2 2002 18 9 23
AVERAGE 45 30 15 32
PRECIPITATION (IN)
YESTERDAY 0.00 0.47 2004 0.07 -0.07 0.12
MONTH TO DATE 1.61 1.66 -0.05 1.20
SINCE MAR 1 2.72 3.56 -0.84 1.69
SINCE JAN 1 6.07 7.06 -0.99 5.39
DEGREE DAYS
HEATING
YESTERDAY 20 35 -15 33
MONTH TO DATE 663 789 -126 776
SINCE MAR 1 1722 2147 -425 920
SINCE JUL 1 8692 10351 -1659 7840
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 9 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (230)
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 85 3:00 AM
LOWEST 21 4:00 PM
AVERAGE 53
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 61 2016
MINIMUM TEMPERATURE (F) 18 0 2023
SUNRISE AND SUNSET
APRIL 22 2026.........SUNRISE 6:26 AM MDT SUNSET 8:15 PM MDT
APRIL 23 2026.........SUNRISE 6:24 AM MDT SUNSET 8:17 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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