839
CDUS45 KRIW 180728
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT THU JUN 18 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR JUNE 17 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 65 3:13 PM 77 2022 62 3 66
MINIMUM 36 11:59 PM 25 2004 33 3 37
AVERAGE 51 47 4 52
PRECIPITATION (IN)
YESTERDAY 0.00 0.79 2018 0.08 -0.08 0.04
MONTH TO DATE 0.78 1.57 -0.79 0.14
SINCE JUN 1 0.78 1.57 -0.79 0.14
SINCE JAN 1 9.02 11.60 -2.58 9.37
DEGREE DAYS
HEATING
YESTERDAY 14 18 -4 13
MONTH TO DATE 310 339 -29 247
SINCE JUN 1 310 339 -29 247
SINCE JUL 1 10060 11812 -1752 9079
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 6.5
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 70 11:00 PM
LOWEST 17 4:00 PM
AVERAGE 44
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THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 62 77 2021
MINIMUM TEMPERATURE (F) 33 25 2010
SUNRISE AND SUNSET
JUNE 18 2026..........SUNRISE 5:36 AM MDT SUNSET 9:10 PM MDT
JUNE 19 2026..........SUNRISE 5:36 AM MDT SUNSET 9:10 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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