352  
CDUS42 KKEY 160545  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
145 AM EDT SAT AUG 16 2025  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR AUGUST 15 2025
 
 
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)  
YESTERDAY  
MAXIMUM 91 1259 PM 98 1964 92 -1 94  
MINIMUM 82 503 AM 70 1963 80 2 82  
AVERAGE 87 86 1 88  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.45 2009 0.18 -0.18 0.03  
MONTH TO DATE 2.41 2.38 0.03 1.63  
SINCE JUN 1 10.09 10.38 -0.29 12.34  
SINCE JAN 1 15.53 20.52 -4.99 27.95  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 22 21 1 23  
MONTH TO DATE 313 315 -2 325  
SINCE JUN 1 1520 1522 -2 1580  
SINCE JAN 1 3204 3145 59 3346    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 7.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79  
LOWEST 57  
AVERAGE 68  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 92 95 1989  
1993  
MINIMUM TEMPERATURE (F) 80 70 1952  
 
SUNRISE AND SUNSET  
AUGUST 16 2025........SUNRISE 659 AM EDT SUNSET 757 PM EDT  
AUGUST 17 2025........SUNRISE 700 AM EDT SUNSET 757 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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