760  
CDUS42 KKEY 210528  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
128 AM EDT SAT SEP 21 2024  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 20 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 89 1136 AM 95 1987 90 -1 95  
2023  
MINIMUM 78 205 PM 69 1956 78 0 79  
AVERAGE 84 84 0 87  
 
PRECIPITATION (IN)  
YESTERDAY 0.11 2.08 1962 0.24 -0.13 0.01  
MONTH TO DATE 1.61 4.20 -2.59 0.89  
SINCE SEP 1 1.61 4.20 -2.59 0.89  
SINCE JAN 1 36.74 27.66 9.08 24.45  
 
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 19 19 0 22  
MONTH TO DATE 435 390 45 457  
SINCE SEP 1 435 390 45 457  
SINCE JAN 1 4103 3860 243 4766    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 2.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94  
LOWEST 68  
AVERAGE 81  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 90 96 1987  
MINIMUM TEMPERATURE (F) 78 70 1956  
1959  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2024.....SUNRISE 713 AM EDT SUNSET 721 PM EDT  
SEPTEMBER 22 2024.....SUNRISE 713 AM EDT SUNSET 720 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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