218
CDUS42 KKEY 210633
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
133 AM EST SUN DEC 21 2025
...............................
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 20 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 78 335 PM 87 2018 78 0 76
MINIMUM 69 653 AM 49 1950 67 2 68
1996
AVERAGE 74 72 2 72
PRECIPITATION (IN)
YESTERDAY 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
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 6 -6 0
SINCE DEC 1 0 6 -6 0
SINCE JUL 1 5 7 -2 0
COOLING
YESTERDAY 9 8 1 7
MONTH TO DATE 212 177 35 144
SINCE DEC 1 212 177 35 144
SINCE JAN 1 5107 5048 59 5377
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 5.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100
LOWEST 93
AVERAGE 97
......................................................
THE MARATHON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 87 1986
MINIMUM TEMPERATURE (F) 67 47 1954
SUNRISE AND SUNSET
DECEMBER 21 2025......SUNRISE 704 AM EST SUNSET 541 PM EST
DECEMBER 22 2025......SUNRISE 705 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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