622
CDUS42 KKEY 170634
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
134 AM EST WED DEC 17 2025
...............................
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 16 2025
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)
YESTERDAY
MAXIMUM 76 203 PM 84 2009 78 -2 80
2019
2021
MINIMUM 69 722 AM 45 1968 68 1 70
AVERAGE 73 73 0 75
PRECIPITATION (IN)
YESTERDAY 0.00 1.34 2023 0.08 -0.08 0.06
MONTH TO DATE 1.41 1.25 0.16 0.10
SINCE DEC 1 1.41 1.25 0.16 0.10
SINCE JAN 1 38.37 38.77 -0.40 46.70
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 4 -4 0
SINCE DEC 1 0 4 -4 0
SINCE JUL 1 5 5 0 0
COOLING
YESTERDAY 8 8 0 10
MONTH TO DATE 170 145 25 101
SINCE DEC 1 170 145 25 101
SINCE JAN 1 5065 5016 49 5334
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 10.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84
LOWEST 62
AVERAGE 73
......................................................
THE MARATHON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 86 1971
2016
MINIMUM TEMPERATURE (F) 68 49 1952
SUNRISE AND SUNSET
DECEMBER 17 2025......SUNRISE 702 AM EST SUNSET 539 PM EST
DECEMBER 18 2025......SUNRISE 703 AM EST SUNSET 539 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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