Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS42 KKEY 042018
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
418 PM EDT THU SEP 04 2025
...................................
...THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 4 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 86 943 AM 95 2002 91 -5 91
MINIMUM 75 459 AM 66 1953 79 -4 81
AVERAGE 81 85 -4 86
PRECIPITATION (IN)
TODAY 0.93 2.15 2010 0.20 0.73 0.41
MONTH TO DATE 2.12 0.80 1.32 0.42
SINCE SEP 1 2.12 0.80 1.32 0.42
SINCE JAN 1 18.72 24.26 -5.54 35.55
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 16 20 -4 21
MONTH TO DATE 71 80 -9 83
SINCE SEP 1 71 80 -9 83
SINCE JAN 1 3619 3550 69 3751
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 5.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94
LOWEST 82
AVERAGE 88
..........................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 91 94 2001
2007
2022
MINIMUM TEMPERATURE (F) 79 69 1953
SUNRISE AND SUNSET
SEPTEMBER 4 2025.....SUNRISE 707 AM EDT SUNSET 739 PM EDT
SEPTEMBER 5 2025.....SUNRISE 707 AM EDT SUNSET 738 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$