645
CDUS45 KRIW 270731
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT MON APR 27 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR APRIL 26 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 35 2:11 PM 56 2001 44 -9 53
2004
MINIMUM 14 1:29 AM 0 2008 20 -6 27
AVERAGE 25 32 -7 40
PRECIPITATION (IN)
YESTERDAY 0.07 0.88 2017 0.07 0.00 0.00
MONTH TO DATE 2.60 2.01 0.59 1.76
SINCE MAR 1 3.71 3.91 -0.20 2.25
SINCE JAN 1 7.06 7.41 -0.35 5.95
DEGREE DAYS
HEATING
YESTERDAY 40 33 7 25
MONTH TO DATE 863 959 -96 935
SINCE MAR 1 1922 2317 -395 1079
SINCE JUL 1 8892 10521 -1629 7999
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 8 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 1.8
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 5:00 AM
LOWEST 66 9:00 AM
AVERAGE 79
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 44 57 2004
MINIMUM TEMPERATURE (F) 20 3 2011
SUNRISE AND SUNSET
APRIL 27 2026.........SUNRISE 6:18 AM MDT SUNSET 8:22 PM MDT
APRIL 28 2026.........SUNRISE 6:16 AM MDT SUNSET 8:23 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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