186
CDUS45 KRIW 180728
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT JUL 18 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR JULY 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 MM MM 82 2006 73 MM 77
2022
MINIMUM MM MM 30 2016 39 MM 37
AVERAGE MM 56 MM 57
PRECIPITATION (IN)
YESTERDAY MM 0.41 2018 0.05 MM 0.00
MONTH TO DATE 0.14 0.83 -0.69 0.28
SINCE JUN 1 2.25 3.21 -0.96 0.93
SINCE JAN 1 10.49 13.24 -2.75 10.16
DEGREE DAYS
HEATING
YESTERDAY MM 9 MM 8
MONTH TO DATE 93 181 -88 128
SINCE JUN 1 607 719 -112 570
SINCE JUL 1 93 181 -88 128
COOLING
YESTERDAY MM 0 MM 0
MONTH TO DATE 0 0 0 1
SINCE JUN 1 0 0 0 1
SINCE JAN 1 0 0 0 1
...............................................................
WIND (MPH)
HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED MM
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER MM
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST MM
LOWEST MM
AVERAGE MM
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 81 2006
MINIMUM TEMPERATURE (F) 39 34 2005
SUNRISE AND SUNSET
JULY 18 2026..........SUNRISE 5:54 AM MDT SUNSET 9:01 PM MDT
JULY 19 2026..........SUNRISE 5:55 AM MDT SUNSET 9:01 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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