378  
CDUS42 KKEY 120534  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
1234 AM EST TUE DEC 12 2023  
   
...............................  
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 11 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 1205 PM 86 1994 79 -7 81  
2012  
MINIMUM 64 1159 PM 49 1962 68 -4 70  
2014  
AVERAGE 68 73 -5 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.50 2013 0.08 -0.08 0.00  
MONTH TO DATE 0.20 0.85 -0.65 0.05  
SINCE DEC 1 0.20 0.85 -0.65 0.05  
SINCE JAN 1 44.18 38.37 5.81 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 11  
MONTH TO DATE 119 102 17 148  
SINCE DEC 1 119 102 17 148  
SINCE JAN 1 5989 4973 1016 5630    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 10.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93  
LOWEST 53  
AVERAGE 73  
   
......................................................  
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 87 2016  
MINIMUM TEMPERATURE (F) 68 42 1957  
 
SUNRISE AND SUNSET  
DECEMBER 12 2023......SUNRISE 659 AM EST SUNSET 537 PM EST  
DECEMBER 13 2023......SUNRISE 700 AM EST SUNSET 537 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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