413
CDUS45 KRIW 200742
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
142 AM MDT TUE MAY 20 2025
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 19 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 44 1:41 PM 70 2002 52 -8 MM
MINIMUM 28 11:59 PM 15 2003 28 0 MM
AVERAGE 36 40 -4 MM
PRECIPITATION (IN)
YESTERDAY 0.11 0.38 2005 0.08 0.03 MM
MONTH TO DATE 1.77 1.31 0.46 1.08
SINCE MAR 1 4.85 5.49 -0.64 6.41
SINCE JAN 1 8.55 8.99 -0.44 10.88
DEGREE DAYS
HEATING
YESTERDAY 29 25 4 MM
MONTH TO DATE 475 539 -64 456
SINCE MAR 1 1670 2985 -1315 2608
SINCE JUL 1 8590 11189 -2599 10082
COOLING
YESTERDAY 0 0 0 MM
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 13 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 3.7
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 92 2:00 AM
LOWEST 59 6:00 PM
AVERAGE 76
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 52 66 2002
MINIMUM TEMPERATURE (F) 28 17 2003
SUNRISE AND SUNSET
MAY 20 2025...........SUNRISE 5:48 AM MDT SUNSET 8:49 PM MDT
MAY 21 2025...........SUNRISE 5:48 AM MDT SUNSET 8:50 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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