349  
CDUS42 KKEY 300542  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
142 AM EDT SAT AUG 30 2025  
   
...............................  
 
   
..THE MARATHON CLIMATE SUMMARY FOR AUGUST 29 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 90 354 PM 94 2001 91 -1 89  
MINIMUM 81 831 PM 69 1953 79 2 77  
AVERAGE 86 85 1 83  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 2.24 2006 0.21 -0.19 0.73  
MONTH TO DATE 2.65 4.91 -2.26 7.93  
SINCE JUN 1 10.33 12.91 -2.58 18.64  
SINCE JAN 1 15.77 23.05 -7.28 34.25  
 
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 21 20 1 18  
MONTH TO DATE 618 602 16 610  
SINCE JUN 1 1825 1809 16 1865  
SINCE JAN 1 3509 3432 77 3631    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 4.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82  
LOWEST 63  
AVERAGE 73  
   
......................................................  
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 91 94 1968  
2004  
2023  
MINIMUM TEMPERATURE (F) 79 70 1988  
 
SUNRISE AND SUNSET  
AUGUST 30 2025........SUNRISE 705 AM EDT SUNSET 744 PM EDT  
AUGUST 31 2025........SUNRISE 705 AM EDT SUNSET 743 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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