Climatological Report (Daily)
Issued by NWS
Issued by NWS
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999
CDUS42 KKEY 312017
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
417 PM EDT SUN AUG 31 2025
...................................
...THE MARATHON CLIMATE SUMMARY FOR AUGUST 31 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 91 1126 AM 95 2023 91 0 87
MINIMUM 77 103 PM 69 1955 79 -2 78
1988
AVERAGE 84 85 -1 83
PRECIPITATION (IN)
TODAY 0.28 2.24 1962 0.21 0.07 0.83
MONTH TO DATE 3.28 5.32 -2.04 8.81
SINCE JUN 1 10.96 13.32 -2.36 19.52
SINCE JAN 1 16.40 23.46 -7.06 35.13
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 19 20 -1 18
MONTH TO DATE 657 640 17 647
SINCE JUN 1 1864 1847 17 1902
SINCE JAN 1 3548 3470 78 3668
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 5.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88
LOWEST 65
AVERAGE 77
..........................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 91 95 2022
MINIMUM TEMPERATURE (F) 79 70 1951
SUNRISE AND SUNSET
AUGUST 31 2025........SUNRISE 705 AM EDT SUNSET 743 PM EDT
SEPTEMBER 1 2025.....SUNRISE 706 AM EDT SUNSET 742 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$