970
CDUS45 KRIW 200730
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT MON APR 20 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR APRIL 19 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 5:18 PM 56 2010 42 10 45
MINIMUM 15 5:58 AM 1 2024 18 -3 3
AVERAGE 34 30 4 24
PRECIPITATION (IN)
YESTERDAY 0.00 0.26 2022 0.07 -0.07 0.00
MONTH TO DATE 1.61 1.51 0.10 1.01
SINCE MAR 1 2.72 3.41 -0.69 1.50
SINCE JAN 1 6.07 6.91 -0.84 5.20
DEGREE DAYS
HEATING
YESTERDAY 31 36 -5 41
MONTH TO DATE 620 719 -99 712
SINCE MAR 1 1679 2077 -398 856
SINCE JUL 1 8649 10281 -1632 7776
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 7 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 1.7
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 96 4:00 AM
LOWEST 21 4:00 PM
AVERAGE 59
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 57 2010
2016
MINIMUM TEMPERATURE (F) 18 -1 2023
SUNRISE AND SUNSET
APRIL 20 2026.........SUNRISE 6:29 AM MDT SUNSET 8:13 PM MDT
APRIL 21 2026.........SUNRISE 6:27 AM MDT SUNSET 8:14 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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