337
CDUS42 KKEY 152118
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
418 PM EST MON DEC 15 2025
...............................
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 15 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1950 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 76 147 PM 87 1972 78 -2 79
MINIMUM 67 725 AM 45 2010 68 -1 70
AVERAGE 72 73 -1 75
PRECIPITATION (IN)
TODAY 0.00 1.21 2006 0.08 -0.08 T
MONTH TO DATE 1.41 1.17 0.24 0.04
SINCE DEC 1 1.41 1.17 0.24 0.04
SINCE JAN 1 38.37 38.69 -0.32 46.64
DEGREE DAYS
HEATING
TODAY 0 1 -1 0
MONTH TO DATE 0 3 -3 0
SINCE DEC 1 0 3 -3 0
SINCE JUL 1 5 4 1 0
COOLING
TODAY 7 8 -1 10
MONTH TO DATE 162 137 25 91
SINCE DEC 1 162 137 25 91
SINCE JAN 1 5057 5008 49 5324
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 11.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90
LOWEST 76
AVERAGE 83
......................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 84 2009
2019
2021
MINIMUM TEMPERATURE (F) 68 45 1968
SUNRISE AND SUNSET
DECEMBER 15 2025......SUNRISE 701 AM EST SUNSET 538 PM EST
DECEMBER 16 2025......SUNRISE 702 AM EST SUNSET 538 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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