490  
CDUS42 KKEY 010627  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
127 AM EST THU JAN 01 2026  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 31 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1950 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 63 1228 AM 87 2007 76 -13 81  
MINIMUM 55 801 AM 48 1956 65 -10 70  
AVERAGE 59 71 -12 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.60 2001 0.05 -0.05 0.00  
MONTH TO DATE 1.42 2.20 -0.78 2.78  
SINCE DEC 1 1.42 2.20 -0.78 2.78  
SINCE JAN 1 38.38 39.72 -1.34 49.38  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 1 5 0  
MONTH TO DATE 6 17 -11 1  
SINCE DEC 1 6 17 -11 1  
SINCE JUL 1 11 18 -7 1  
 
COOLING  
YESTERDAY 0 7 -7 11  
MONTH TO DATE 302 256 46 230  
SINCE DEC 1 302 256 46 230  
SINCE JAN 1 5197 5127 70 5463    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 10.1  
 
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 75  
LOWEST 45  
AVERAGE 60  
   
......................................................
 
 
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 2026.......SUNRISE 709 AM EST SUNSET 547 PM EST  
JANUARY 2 2026.......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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