520 
CDUS42 KKEY 180539
CLIMTH

CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST, FL                                
1236 AM EST TUE DEC 18 2018

................................... 

...THE MARATHON CLIMATE SUMMARY FOR DECEMBER 17 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010

WEATHER ITEM   OBSERVED TIME   NORMAL DEPARTURE LAST                 
                VALUE   (LST)  VALUE  FROM      YEAR                 
                                      NORMAL                         
......................................................

TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         73    248 PM  77     -4       82                   
  MINIMUM         67   1159 PM  67      0       68                   
  AVERAGE         70            72     -2       75                  
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.08  -0.08     0.00                
  MONTH TO DATE    0.07          1.12  -1.05     0.93                
  SINCE DEC 1      0.07          1.12  -1.05     0.93                
  SINCE JAN 1     30.64         45.27 -14.63    31.50                
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE DEC 1      0.0                                               
  SINCE JUL 1      0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0             1     -1        0                   
  MONTH TO DATE    4            10     -6       18                   
  SINCE DEC 1      4            10     -6       18                   
  SINCE JUL 1      8            11     -3       18                   
                                                                     
 COOLING                                                             
  YESTERDAY        5             7     -2       10                   
  MONTH TO DATE  165           141     24      137                   
  SINCE DEC 1    165           141     24      137                   
  SINCE JAN 1   5300          4905    395     5516                   

......................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     N (360)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     N (10)       
  AVERAGE WIND SPEED     8.3                                         
                                                                     
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    76                                                       
 LOWEST     57                                                       
 AVERAGE    67                                                       

..........................................................
                                                                     
THE MARATHON CLIMATE NORMALS FOR TODAY
                         NORMAL                                      
 MAXIMUM TEMPERATURE (F)   76                                        
 MINIMUM TEMPERATURE (F)   66                                        

                                                                     
SUNRISE AND SUNSET                                                   

DECEMBER 18 2018......SUNRISE   703 AM EST   SUNSET   539 PM EST   
DECEMBER 19 2018......SUNRISE   703 AM EST   SUNSET   540 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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