313  
CDUS42 KKEY 170534  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
134 AM EDT TUE SEP 17 2024  
   
...............................  
 
   
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 16 2024  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1950 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 91 212 PM 97 2023 90 1 97  
MINIMUM 84 453 AM 71 1952 78 6 82  
1965  
AVERAGE 88 84 4 90  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.01 1996 0.22 -0.22 T  
MONTH TO DATE 0.77 3.28 -2.51 0.88  
SINCE SEP 1 0.77 3.28 -2.51 0.88  
SINCE JAN 1 35.90 26.74 9.16 24.44  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 23 19 4 25  
MONTH TO DATE 357 314 43 361  
SINCE SEP 1 357 314 43 361  
SINCE JAN 1 4025 3784 241 4670    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 3.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 91  
LOWEST 68  
AVERAGE 80  
   
......................................................  
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 90 97 2023  
MINIMUM TEMPERATURE (F) 78 71 1957  
 
SUNRISE AND SUNSET  
SEPTEMBER 17 2024.....SUNRISE 711 AM EDT SUNSET 725 PM EDT  
SEPTEMBER 18 2024.....SUNRISE 712 AM EDT SUNSET 724 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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