231
CDUS42 KKEY 182127
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
427 PM EST THU DEC 18 2025
...............................
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 18 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 81 306 PM 88 2016 78 3 82
MINIMUM 71 102 AM 50 1982 67 4 74
AVERAGE 76 72 4 78
PRECIPITATION (IN)
TODAY 0.00 0.79 2009 0.08 -0.08 0.03
MONTH TO DATE 1.41 1.40 0.01 0.13
SINCE DEC 1 1.41 1.40 0.01 0.13
SINCE JAN 1 38.37 38.92 -0.55 46.73
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 5 -5 0
SINCE DEC 1 0 5 -5 0
SINCE JUL 1 5 6 -1 0
COOLING
TODAY 11 8 3 13
MONTH TO DATE 191 161 30 128
SINCE DEC 1 191 161 30 128
SINCE JAN 1 5086 5032 54 5361
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 9.5
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 93
LOWEST 74
AVERAGE 84
......................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 88 2016
MINIMUM TEMPERATURE (F) 67 49 1950
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 703 AM EST SUNSET 539 PM EST
DECEMBER 19 2025......SUNRISE 703 AM EST SUNSET 540 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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