150
CDUS42 KKEY 192116
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
416 PM EST FRI DEC 19 2025
...............................
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 19 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 82 1132 AM 88 2016 78 4 76
MINIMUM 73 653 AM 49 1950 67 6 71
AVERAGE 78 72 6 74
PRECIPITATION (IN)
TODAY 0.00 0.23 1965 0.07 -0.07 0.00
MONTH TO DATE 1.41 1.47 -0.06 0.13
SINCE DEC 1 1.41 1.47 -0.06 0.13
SINCE JAN 1 38.37 38.99 -0.62 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 13 8 5 9
MONTH TO DATE 204 169 35 137
SINCE DEC 1 204 169 35 137
SINCE JAN 1 5099 5040 59 5370
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 4.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94
LOWEST 87
AVERAGE 91
......................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 87 2018
MINIMUM TEMPERATURE (F) 67 49 1950
1996
SUNRISE AND SUNSET
DECEMBER 19 2025......SUNRISE 703 AM EST SUNSET 540 PM EST
DECEMBER 20 2025......SUNRISE 704 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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