234   
CDUS42 KKEY 200539  
CLIMTH  
  
CLIMATE REPORT   
NATIONAL WEATHER SERVICE KEY WEST FL  
1239 AM EST FRI DEC 20 2024  
   
...............................  
  
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 19 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         76    841 AM  88    2016  78     -2       69         
  MINIMUM         71    801 PM  49    1950  67      4       59         
  AVERAGE         74                        72      2       64       
  
PRECIPITATION (IN)                                                      
  YESTERDAY        0.00          0.23 1965   0.07  -0.07     0.00       
  MONTH TO DATE    0.13                      1.47  -1.34     3.37       
  SINCE DEC 1      0.13                      1.47  -1.34     3.37       
  SINCE JAN 1     46.73                     38.99   7.74    47.35       
  
DEGREE DAYS                                                             
 HEATING                                                                
  YESTERDAY        0                         0      0        1          
  MONTH TO DATE    0                         5     -5        1          
  SINCE DEC 1      0                         5     -5        1          
  SINCE JUL 1      0                         6     -6        1          
  
 COOLING                                                                
  YESTERDAY        9                         8      1        0          
  MONTH TO DATE  137                       169    -32      161          
  SINCE DEC 1    137                       169    -32      161          
  SINCE JAN 1   5370                      5040    330     6031           
...............................................................  
  
WIND (MPH)                                                              
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION    NW (320)         
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     N (360)         
  AVERAGE WIND SPEED     5.0                                          
  
SKY COVER                                                               
  POSSIBLE SUNSHINE  MM                                                   
  AVERAGE SKY COVER 0.5                                                   
  
WEATHER CONDITIONS                                                      
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                           
  FOG                                                                   
  FOG W/VISIBILITY <= 1/4 MILE                                          
  HAZE                                                                  
  
RELATIVE HUMIDITY (PERCENT)  
 HIGHEST    97                                                          
 LOWEST     87                                                          
 AVERAGE    92                                                          
   
......................................................  
  
THE MARATHON CLIMATE NORMALS FOR TODAY  
                         NORMAL    RECORD    YEAR                       
 MAXIMUM TEMPERATURE (F)   78        87      2018                        
 MINIMUM TEMPERATURE (F)   67        49      1950                        
                                             1996                       
  
SUNRISE AND SUNSET                                                      
DECEMBER 20 2024......SUNRISE   704 AM EST   SUNSET   540 PM EST       
DECEMBER 21 2024......SUNRISE   705 AM EST   SUNSET   541 PM EST       
  
-  INDICATES NEGATIVE NUMBERS.  
R  INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T  INDICATES TRACE AMOUNT.  
  
  
 
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