424
CDUS45 KRIW 180728
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT OCT 18 2025
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR OCTOBER 17 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 37 9:28 PM 64 2015 45 -8 45
MINIMUM 32 8:35 AM 12 1999 22 10 29
AVERAGE 35 33 2 37
PRECIPITATION (IN)
YESTERDAY 0.00 0.36 2016 0.06 -0.06 0.21
MONTH TO DATE 2.43 0.97 1.46 0.21
SINCE SEP 1 3.89 2.54 1.35 1.64
SINCE JAN 1 15.60 17.80 -2.20 16.83
DEGREE DAYS
HEATING
YESTERDAY 30 32 -2 28
MONTH TO DATE 431 484 -53 340
SINCE SEP 1 915 1072 -157 819
SINCE JUL 1 1431 1714 -283 1396
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JAN 1 1 0 1 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 4.5
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 88 6:00 AM
LOWEST 67 9:00 PM
AVERAGE 78
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 44 64 2003
MINIMUM TEMPERATURE (F) 21 11 2006
2013
SUNRISE AND SUNSET
OCTOBER 18 2025.......SUNRISE 7:41 AM MDT SUNSET 6:32 PM MDT
OCTOBER 19 2025.......SUNRISE 7:42 AM MDT SUNSET 6:30 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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