209
CDUS45 KRIW 290729
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
129 AM MDT FRI MAY 29 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 28 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 72 12:58 PM 78 2003 54 18 64
MINIMUM 34 4:49 AM 27 2005 30 4 36
2017
2024
AVERAGE 53 42 11 50
PRECIPITATION (IN)
YESTERDAY 0.00 0.59 2022 0.09 -0.09 0.00
MONTH TO DATE 0.55 2.07 -1.52 2.41
SINCE MAR 1 4.47 6.25 -1.78 5.49
SINCE JAN 1 7.82 9.75 -1.93 9.19
DEGREE DAYS
HEATING
YESTERDAY 12 23 -11 15
MONTH TO DATE 646 756 -110 675
SINCE MAR 1 2718 3202 -484 1870
SINCE JUL 1 9688 11406 -1718 8790
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 10 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 1.6
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 18 5:00 PM
AVERAGE 55
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 77 2003
MINIMUM TEMPERATURE (F) 30 26 2016
2021
SUNRISE AND SUNSET
MAY 29 2026...........SUNRISE 5:42 AM MDT SUNSET 8:57 PM MDT
MAY 30 2026...........SUNRISE 5:41 AM MDT SUNSET 8:58 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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