374  
CDUS42 KKEY 220628  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
128 AM EST MON DEC 22 2025  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 21 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 MM MM 87 1986 77 MM 68  
MINIMUM MM MM 47 1954 67 MM 60  
AVERAGE MM 72 MM 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.98 1962 0.07 -0.07 0.00  
MONTH TO DATE 1.41 1.62 -0.21 0.13  
SINCE DEC 1 1.41 1.62 -0.21 0.13  
SINCE JAN 1 38.37 39.14 -0.77 46.73  
 
DEGREE DAYS  
HEATING  
YESTERDAY MM 1 MM 1  
MONTH TO DATE 0 7 -7 1  
SINCE DEC 1 0 7 -7 1  
SINCE JUL 1 5 8 -3 1  
 
COOLING  
YESTERDAY MM 8 MM 0  
MONTH TO DATE 212 185 27 144  
SINCE DEC 1 212 185 27 144  
SINCE JAN 1 5107 5056 51 5377    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 6.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90  
LOWEST 82  
AVERAGE 86  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 84 1999  
2022  
MINIMUM TEMPERATURE (F) 67 45 1954  
1960  
 
SUNRISE AND SUNSET  
DECEMBER 22 2025......SUNRISE 705 AM EST SUNSET 541 PM EST  
DECEMBER 23 2025......SUNRISE 705 AM EST SUNSET 542 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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