609  
CDUS42 KKEY 020529  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
129 AM EDT WED SEP 02 2026  
   
...............................  
 
   
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 1 2026  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1950 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 92 1218 PM 95 2022 91 1 89  
MINIMUM 82 557 AM 70 1951 79 3 77  
AVERAGE 87 85 2 83  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.21 1971 0.20 -0.20 0.75  
MONTH TO DATE 0.00 0.20 -0.20 0.75  
SINCE SEP 1 0.00 0.20 -0.20 0.75  
SINCE JAN 1 15.87 23.66 -7.79 17.35  
 
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 22 20 2 18  
MONTH TO DATE 22 20 2 18  
SINCE SEP 1 22 20 2 18  
SINCE JAN 1 3495 3490 5 3566    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 4.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85  
LOWEST 59  
AVERAGE 72  
   
......................................................  
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 91 96 2022  
MINIMUM TEMPERATURE (F) 79 70 1954  
 
SUNRISE AND SUNSET  
SEPTEMBER 2 2026.....SUNRISE 706 AM EDT SUNSET 742 PM EDT  
SEPTEMBER 3 2026.....SUNRISE 706 AM EDT SUNSET 741 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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