635  
CDUS42 KKEY 210530  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
1230 AM EST SUN JAN 21 2024  
   
...............................  
 
   
..THE MARATHON CLIMATE SUMMARY FOR JANUARY 20 2024  
 
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)  
YESTERDAY  
MAXIMUM MM MM 87 1987 76 MM 83  
MINIMUM MM MM 41 1971 64 MM 66  
AVERAGE MM 70 MM 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.80 1996 0.06 -0.06 0.00  
MONTH TO DATE 1.04 0.93 0.11 0.13  
SINCE DEC 1 9.62 3.13 6.49 3.37  
SINCE JAN 1 1.04 0.93 0.11 0.13  
 
DEGREE DAYS  
HEATING  
YESTERDAY MM 1 MM 0  
MONTH TO DATE MM 20 MM 16  
SINCE DEC 1 3 37 -34 44  
SINCE JUL 1 3 38 -35 44  
 
COOLING  
YESTERDAY MM 6 MM 10  
MONTH TO DATE MM 123 MM 165  
SINCE DEC 1 214 379 -165 481  
SINCE JAN 1 MM 123 MM 165    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 12.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................  
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 86 2017  
MINIMUM TEMPERATURE (F) 64 47 1971  
 
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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