215  
CDUS42 KKEY 010530  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
1230 AM EST MON JAN 01 2024  
   
...............................  
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 31 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 MM MM 87 2007 76 MM 85  
MINIMUM MM MM 48 1956 65 MM 72  
AVERAGE MM 71 MM 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.60 2001 0.05 -0.05 0.00  
MONTH TO DATE 8.58 2.20 6.38 3.24  
SINCE DEC 1 8.58 2.20 6.38 3.24  
SINCE JAN 1 52.56 39.72 12.84 34.73  
 
DEGREE DAYS  
HEATING  
YESTERDAY MM 1 MM 0  
MONTH TO DATE 1 17 -16 28  
SINCE DEC 1 1 17 -16 28  
SINCE JUL 1 1 18 -17 28  
 
COOLING  
YESTERDAY MM 7 MM 14  
MONTH TO DATE 208 256 -48 316  
SINCE DEC 1 208 256 -48 316  
SINCE JAN 1 6078 5127 951 5798    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 4.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................  
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 86 2008  
MINIMUM TEMPERATURE (F) 65 49 1984  
 
SUNRISE AND SUNSET  
JANUARY 1 2024.......SUNRISE 709 AM EST SUNSET 547 PM EST  
JANUARY 2 2024.......SUNRISE 709 AM EST SUNSET 548 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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