411
CDUS42 KKEY 202108
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
508 PM EDT SAT SEP 20 2025
...............................
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 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 95 1987 90 MM 89
2023
MINIMUM MM MM 69 1956 78 MM 78
AVERAGE MM 84 MM 84
PRECIPITATION (IN)
TODAY 0.11 2.08 1962 0.24 -0.13 0.11
MONTH TO DATE 7.19 4.20 2.99 1.61
SINCE SEP 1 7.19 4.20 2.99 1.61
SINCE JAN 1 23.79 27.66 -3.87 36.74
DEGREE DAYS
HEATING
TODAY MM 0 MM 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY MM 19 MM 19
MONTH TO DATE 272 390 -118 435
SINCE SEP 1 272 390 -118 435
SINCE JAN 1 3820 3860 -40 4103
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 5.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
LIGHT RAIN
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST MM
LOWEST MM
AVERAGE MM
......................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 96 1987
MINIMUM TEMPERATURE (F) 78 70 1956
1959
SUNRISE AND SUNSET
SEPTEMBER 20 2025.....SUNRISE 712 AM EDT SUNSET 722 PM EDT
SEPTEMBER 21 2025.....SUNRISE 713 AM EDT SUNSET 721 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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