796  
CDUS42 KKEY 290527  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
1227 AM EST FRI DEC 29 2023  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 28 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 85 2007 77 MM 73  
2016  
2018  
MINIMUM MM MM 44 2010 66 MM 60  
AVERAGE MM 71 MM 67  
 
PRECIPITATION (IN)  
YESTERDAY 0.94 1.24 1997 0.06 0.88 0.00  
MONTH TO DATE 8.58 2.04 6.54 3.24  
SINCE DEC 1 8.58 2.04 6.54 3.24  
SINCE JAN 1 52.56 39.56 13.00 34.73  
 
DEGREE DAYS  
HEATING  
YESTERDAY MM 1 MM 0  
MONTH TO DATE 1 14 -13 28  
SINCE DEC 1 1 14 -13 28  
SINCE JUL 1 1 15 -14 28  
 
COOLING  
YESTERDAY MM 7 MM 2  
MONTH TO DATE 196 235 -39 286  
SINCE DEC 1 196 235 -39 286  
SINCE JAN 1 6066 5106 960 5768    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 10.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
LIGHT SNOW  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 87 2018  
MINIMUM TEMPERATURE (F) 66 51 1961  
2010  
 
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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