531
CDUS42 KKEY 140531
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
131 AM EDT SUN SEP 14 2025
...............................
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 13 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 MM MM 95 2015 90 MM 93
2022
MINIMUM MM MM 68 1954 79 MM 83
AVERAGE MM 84 MM 88
PRECIPITATION (IN)
YESTERDAY 1.22 1.84 2014 0.21 1.01 0.01
MONTH TO DATE 5.30 2.65 2.65 0.58
SINCE SEP 1 5.30 2.65 2.65 0.58
SINCE JAN 1 21.90 26.11 -4.21 35.71
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY MM 19 MM 23
MONTH TO DATE 108 257 -149 289
SINCE SEP 1 108 257 -149 289
SINCE JAN 1 3656 3727 -71 3957
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 54 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 4.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97
LOWEST 65
AVERAGE 81
......................................................
THE MARATHON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 95 2023
MINIMUM TEMPERATURE (F) 78 67 1954
SUNRISE AND SUNSET
SEPTEMBER 14 2025.....SUNRISE 710 AM EDT SUNSET 729 PM EDT
SEPTEMBER 15 2025.....SUNRISE 711 AM EDT SUNSET 728 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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