864
CDUS42 KKEY 092118
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
418 PM EST TUE DEC 09 2025
...............................
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 9 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 77 347 PM 86 1972 79 -2 81
MINIMUM 72 853 AM 53 2010 69 3 73
AVERAGE 75 74 1 77
PRECIPITATION (IN)
TODAY T 0.86 2017 0.08 -0.08 0.00
MONTH TO DATE 0.73 0.69 0.04 0.00
SINCE DEC 1 0.73 0.69 0.04 0.00
SINCE JAN 1 37.69 38.21 -0.52 46.60
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JUL 1 5 1 4 0
COOLING
TODAY 10 9 1 12
MONTH TO DATE 99 84 15 42
SINCE DEC 1 99 84 15 42
SINCE JAN 1 4994 4955 39 5275
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 8.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93
LOWEST 82
AVERAGE 88
......................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 86 1971
2004
2019
MINIMUM TEMPERATURE (F) 69 52 2014
SUNRISE AND SUNSET
DECEMBER 9 2025......SUNRISE 657 AM EST SUNSET 536 PM EST
DECEMBER 10 2025......SUNRISE 658 AM EST SUNSET 536 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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