397
CDUS42 KKEY 202035
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
435 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 89 200 PM 95 1987 90 -1 89
2023
MINIMUM 85 1100 AM 69 1956 78 7 78
AVERAGE 87 84 3 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 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 22 19 3 19
MONTH TO DATE 294 390 -96 435
SINCE SEP 1 294 390 -96 435
SINCE JAN 1 3842 3860 -18 4103
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 5.3
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 77
LOWEST 68
AVERAGE 73
......................................................
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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