414  
CDUS42 KKEY 162150  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
550 PM EDT WED SEP 16 2026  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 16 2026
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1950 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 91 103 PM 97 2023 90 1 89  
MINIMUM 79 236 AM 71 1952 78 1 78  
1965  
AVERAGE 85 84 1 84  
 
PRECIPITATION (IN)  
TODAY 0.12 3.01 1996 0.22 -0.10 0.00  
MONTH TO DATE 0.73 3.28 -2.55 5.37  
SINCE SEP 1 0.73 3.28 -2.55 5.37  
SINCE JAN 1 16.60 26.74 -10.14 21.97  
 
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 20 19 1 19  
MONTH TO DATE 337 314 23 291  
SINCE SEP 1 337 314 23 291  
SINCE JAN 1 3810 3784 26 3839    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 10.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88  
LOWEST 59  
AVERAGE 74  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 90 97 2023  
MINIMUM TEMPERATURE (F) 78 71 1957  
 
SUNRISE AND SUNSET  
SEPTEMBER 16 2026.....SUNRISE 711 AM EDT SUNSET 727 PM EDT  
SEPTEMBER 17 2026.....SUNRISE 711 AM EDT SUNSET 726 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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