554  
CDUS42 KKEY 212116  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
416 PM EST SUN JAN 21 2024  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR JANUARY 21 2024
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1950 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM MM MM 86 2017 76 MM 84  
MINIMUM MM MM 47 1971 64 MM 70  
AVERAGE MM 70 MM 77  
 
PRECIPITATION (IN)  
TODAY 0.00 3.43 1983 0.06 -0.06 0.00  
MONTH TO DATE 1.04 0.99 0.05 0.13  
SINCE DEC 1 9.62 3.19 6.43 3.37  
SINCE JAN 1 1.04 0.99 0.05 0.13  
 
DEGREE DAYS  
HEATING  
TODAY MM 1 MM 0  
MONTH TO DATE MM 21 MM 16  
SINCE DEC 1 3 38 -35 44  
SINCE JUL 1 3 39 -36 44  
 
COOLING  
TODAY MM 6 MM 12  
MONTH TO DATE MM 129 MM 177  
SINCE DEC 1 214 385 -171 493  
SINCE JAN 1 MM 129 MM 177    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 16.7  
 
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 2017  
MINIMUM TEMPERATURE (F) 64 40 1985  
 
SUNRISE AND SUNSET  
JANUARY 21 2024.......SUNRISE 710 AM EST SUNSET 601 PM EST  
JANUARY 22 2024.......SUNRISE 710 AM EST SUNSET 602 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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