038
CDUS45 KRIW 160727
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT SAT MAY 16 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 15 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 55 2:12 PM 65 2013 50 5 43
MINIMUM 25 5:19 AM 19 1999 26 -1 28
AVERAGE 40 38 2 36
PRECIPITATION (IN)
YESTERDAY 0.00 0.64 2015 0.07 -0.07 0.38
MONTH TO DATE 0.08 1.00 -0.92 0.65
SINCE MAR 1 4.00 5.18 -1.18 3.73
SINCE JAN 1 7.35 8.68 -1.33 7.43
DEGREE DAYS
HEATING
YESTERDAY 25 27 -2 29
MONTH TO DATE 335 436 -101 361
SINCE MAR 1 2407 2882 -475 1556
SINCE JUL 1 9377 11086 -1709 8476
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 17 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 5.5
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 74 5:00 AM
LOWEST 16 2:00 PM
AVERAGE 45
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THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 51 69 2006
MINIMUM TEMPERATURE (F) 27 22 2009
SUNRISE AND SUNSET
MAY 16 2026...........SUNRISE 5:53 AM MDT SUNSET 8:44 PM MDT
MAY 17 2026...........SUNRISE 5:52 AM MDT SUNSET 8:45 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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