754
CDUS42 KKEY 202118
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
418 PM EST SAT DEC 20 2025
...............................
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 20 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 MM MM 87 2018 78 MM 76
MINIMUM MM MM 49 1950 67 MM 68
1996
AVERAGE MM 72 MM 72
PRECIPITATION (IN)
TODAY 0.00 1.09 2022 0.08 -0.08 0.00
MONTH TO DATE 1.41 1.55 -0.14 0.13
SINCE DEC 1 1.41 1.55 -0.14 0.13
SINCE JAN 1 38.37 39.07 -0.70 46.73
DEGREE DAYS
HEATING
TODAY MM 1 MM 0
MONTH TO DATE 0 6 -6 0
SINCE DEC 1 0 6 -6 0
SINCE JUL 1 5 7 -2 0
COOLING
TODAY MM 8 MM 7
MONTH TO DATE 203 177 26 144
SINCE DEC 1 203 177 26 144
SINCE JAN 1 5098 5048 50 5377
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 6.9
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 97
LOWEST 93
AVERAGE 95
......................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 87 1986
MINIMUM TEMPERATURE (F) 67 47 1954
SUNRISE AND SUNSET
DECEMBER 20 2025......SUNRISE 704 AM EST SUNSET 540 PM EST
DECEMBER 21 2025......SUNRISE 704 AM EST SUNSET 541 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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