120  
CDUS42 KKEY 162125  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
425 PM EST SAT DEC 16 2023  
   
...............................  
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 16 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 75 916 AM 84 2009 78 -3 82  
2019  
2021  
MINIMUM 69 248 PM 45 1968 68 1 74  
AVERAGE 72 73 -1 78  
 
PRECIPITATION (IN)  
TODAY 1.01 1.20 2006 0.08 0.93 0.30  
MONTH TO DATE 2.48 1.25 1.23 0.72  
SINCE DEC 1 2.48 1.25 1.23 0.72  
SINCE JAN 1 46.46 38.77 7.69 32.21  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1 0  
MONTH TO DATE 0 4 -4 0  
SINCE DEC 1 0 4 -4 0  
SINCE JUL 1 0 5 -5 0  
 
COOLING  
TODAY 7 8 -1 13  
MONTH TO DATE 149 145 4 207  
SINCE DEC 1 149 145 4 207  
SINCE JAN 1 6019 5016 1003 5689    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 49 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 15.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100  
LOWEST 88  
AVERAGE 94  
   
......................................................  
 
THE MARATHON CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 86 1971  
2016  
MINIMUM TEMPERATURE (F) 68 49 1952  
 
SUNRISE AND SUNSET  
DECEMBER 16 2023......SUNRISE 701 AM EST SUNSET 538 PM EST  
DECEMBER 17 2023......SUNRISE 702 AM EST SUNSET 539 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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