093  
CDUS42 KKEY 192119  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
419 PM EST TUE DEC 19 2023  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 19 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 69 134 PM 88 2016 78 -9 80  
MINIMUM 59 813 AM 49 1950 67 -8 70  
AVERAGE 64 72 -8 75  
 
PRECIPITATION (IN)  
TODAY 0.00 0.23 1965 0.07 -0.07 0.00  
MONTH TO DATE 3.37 1.47 1.90 1.72  
SINCE DEC 1 3.37 1.47 1.90 1.72  
SINCE JAN 1 47.35 38.99 8.36 33.21  
 
DEGREE DAYS  
HEATING  
TODAY 1 0 1 0  
MONTH TO DATE 1 5 -4 0  
SINCE DEC 1 1 5 -4 0  
SINCE JUL 1 1 6 -5 0  
 
COOLING  
TODAY 0 8 -8 10  
MONTH TO DATE 161 169 -8 241  
SINCE DEC 1 161 169 -8 241  
SINCE JAN 1 6031 5040 991 5723    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 11.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87  
LOWEST 53  
AVERAGE 70  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 87 2018  
MINIMUM TEMPERATURE (F) 67 49 1950  
1996  
 
SUNRISE AND SUNSET  
DECEMBER 19 2023......SUNRISE 703 AM EST SUNSET 540 PM EST  
DECEMBER 20 2023......SUNRISE 704 AM EST SUNSET 540 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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