510  
CDUS42 KKEY 200535  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
135 AM EDT FRI SEP 20 2024  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 19 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 88 945 AM 96 2023 90 -2 96  
MINIMUM 78 715 AM 67 1954 78 0 83  
AVERAGE 83 84 -1 90  
 
PRECIPITATION (IN)  
YESTERDAY 0.39 3.56 2001 0.22 0.17 0.00  
MONTH TO DATE 1.50 3.96 -2.46 0.88  
SINCE SEP 1 1.50 3.96 -2.46 0.88  
SINCE JAN 1 36.63 27.42 9.21 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 18 19 -1 25  
MONTH TO DATE 416 371 45 435  
SINCE SEP 1 416 371 45 435  
SINCE JAN 1 4084 3841 243 4744    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 2.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94  
LOWEST 72  
AVERAGE 83  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 90 95 1987  
2023  
MINIMUM TEMPERATURE (F) 78 69 1956  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2024.....SUNRISE 712 AM EDT SUNSET 722 PM EDT  
SEPTEMBER 21 2024.....SUNRISE 713 AM EDT SUNSET 721 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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