828  
CDUS42 KKEY 100538  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
138 AM EDT TUE SEP 10 2024  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 9 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 90 408 PM 95 1987 90 0 92  
MINIMUM 85 1159 PM 71 1954 79 6 80  
1988  
1991  
AVERAGE 88 84 4 86  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.30 2002 0.20 -0.20 0.00  
MONTH TO DATE 0.56 1.83 -1.27 0.88  
SINCE SEP 1 0.56 1.83 -1.27 0.88  
SINCE JAN 1 35.69 25.29 10.40 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 23 20 3 21  
MONTH TO DATE 196 180 16 192  
SINCE SEP 1 196 180 16 192  
SINCE JAN 1 3864 3650 214 4501    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 4.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83  
LOWEST 75  
AVERAGE 79  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 90 95 1993  
MINIMUM TEMPERATURE (F) 79 67 1953  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2024.....SUNRISE 709 AM EDT SUNSET 733 PM EDT  
SEPTEMBER 11 2024.....SUNRISE 709 AM EDT SUNSET 732 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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