430  
CDUS42 KKEY 130534  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
1234 AM EST WED DEC 13 2023  
   
...............................  
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 12 2023  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1950 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 72 832 PM 87 2016 78 -6 78  
MINIMUM 63 624 AM 42 1957 68 -5 68  
AVERAGE 68 73 -5 73  
 
PRECIPITATION (IN)  
YESTERDAY T 0.69 1983 0.08 -0.08 0.00  
MONTH TO DATE 0.20 0.93 -0.73 0.05  
SINCE DEC 1 0.20 0.93 -0.73 0.05  
SINCE JAN 1 44.18 38.45 5.73 31.54  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JUL 1 0 1 -1 0  
 
COOLING  
YESTERDAY 3 9 -6 8  
MONTH TO DATE 122 111 11 156  
SINCE DEC 1 122 111 11 156  
SINCE JAN 1 5992 4982 1010 5638    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 12.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87  
LOWEST 71  
AVERAGE 79  
   
......................................................  
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 87 1961  
1986  
MINIMUM TEMPERATURE (F) 68 42 1962  
 
SUNRISE AND SUNSET  
DECEMBER 13 2023......SUNRISE 700 AM EST SUNSET 537 PM EST  
DECEMBER 14 2023......SUNRISE 700 AM EST SUNSET 538 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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