773  
CDUS42 KKEY 132138  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
438 PM EST WED DEC 13 2023  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 13 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 73 126 PM 87 1961 78 -5 81  
1986  
MINIMUM 70 852 AM 42 1962 68 2 70  
AVERAGE 72 73 -1 76  
 
PRECIPITATION (IN)  
TODAY 0.26 0.64 1997 0.08 0.18 0.00  
MONTH TO DATE 0.46 1.01 -0.55 0.05  
SINCE DEC 1 0.46 1.01 -0.55 0.05  
SINCE JAN 1 44.44 38.53 5.91 31.54  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1 0  
MONTH TO DATE 0 1 -1 0  
SINCE DEC 1 0 1 -1 0  
SINCE JUL 1 0 2 -2 0  
 
COOLING  
TODAY 7 9 -2 11  
MONTH TO DATE 129 120 9 167  
SINCE DEC 1 129 120 9 167  
SINCE JAN 1 5999 4991 1008 5649    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 15.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100  
LOWEST 84  
AVERAGE 92  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 87 2018  
MINIMUM TEMPERATURE (F) 68 44 1962  
2010  
 
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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