240  
CDUS42 KKEY 292123  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
423 PM EST FRI DEC 29 2023  
   
...............................  
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 29 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 MM MM 87 2018 76 MM 76  
MINIMUM MM MM 51 1961 66 MM 65  
2010  
AVERAGE MM 71 MM 71  
 
PRECIPITATION (IN)  
TODAY 0.00 0.42 1995 0.05 -0.05 T  
MONTH TO DATE 8.58 2.09 6.49 3.24  
SINCE DEC 1 8.58 2.09 6.49 3.24  
SINCE JAN 1 52.56 39.61 12.95 34.73  
 
DEGREE DAYS  
HEATING  
TODAY MM 1 MM 0  
MONTH TO DATE 1 15 -14 28  
SINCE DEC 1 1 15 -14 28  
SINCE JUL 1 1 16 -15 28  
 
COOLING  
TODAY MM 7 MM 6  
MONTH TO DATE 196 242 -46 292  
SINCE DEC 1 196 242 -46 292  
SINCE JAN 1 6066 5113 953 5774    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 4.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................  
 
THE MARATHON CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 86 2007  
MINIMUM TEMPERATURE (F) 65 50 1956  
1961  
 
SUNRISE AND SUNSET  
DECEMBER 29 2023......SUNRISE 708 AM EST SUNSET 545 PM EST  
DECEMBER 30 2023......SUNRISE 708 AM EST SUNSET 546 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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