192
CDUS42 KKEY 152017
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
417 PM EDT MON SEP 15 2025
...............................
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 15 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 94 2022 90 MM 93
2023
MINIMUM MM MM 68 1954 78 MM 78
AVERAGE MM 84 MM 86
PRECIPITATION (IN)
TODAY 0.07 2.24 1966 0.21 -0.14 0.19
MONTH TO DATE 5.37 3.06 2.31 0.77
SINCE SEP 1 5.37 3.06 2.31 0.77
SINCE JAN 1 21.97 26.52 -4.55 35.90
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 21
MONTH TO DATE 126 295 -169 334
SINCE SEP 1 126 295 -169 334
SINCE JAN 1 3674 3765 -91 4002
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 2.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88
LOWEST 70
AVERAGE 79
......................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 97 2023
MINIMUM TEMPERATURE (F) 78 71 1952
1965
SUNRISE AND SUNSET
SEPTEMBER 15 2025.....SUNRISE 711 AM EDT SUNSET 728 PM EDT
SEPTEMBER 16 2025.....SUNRISE 711 AM EDT SUNSET 727 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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