079  
CDUS42 KKEY 140542  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
1242 AM EST THU DEC 14 2023  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 13 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 73 100 PM 87 1961 78 -5 81  
1986  
MINIMUM 71 1159 PM 42 1962 68 3 70  
AVERAGE 72 73 -1 76  
 
PRECIPITATION (IN)  
YESTERDAY 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  
YESTERDAY 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  
YESTERDAY 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 14.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100  
LOWEST 84  
AVERAGE 92  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 87 2018  
MINIMUM TEMPERATURE (F) 68 44 1962  
2010  
 
SUNRISE AND SUNSET  
DECEMBER 14 2023......SUNRISE 700 AM EST SUNSET 538 PM EST  
DECEMBER 15 2023......SUNRISE 701 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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