401  
CDUS42 KKEY 282023  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
423 PM EDT THU SEP 28 2023  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 28 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM MM MM 95 2006 89 MM 86  
MINIMUM MM MM 66 1954 78 MM 77  
AVERAGE MM 83 MM 82  
 
PRECIPITATION (IN)  
TODAY 1.76 5.92 1953 0.21 1.55 0.20  
MONTH TO DATE 7.31 5.94 1.37 6.79  
SINCE SEP 1 7.31 5.94 1.37 6.79  
SINCE JAN 1 30.87 29.40 1.47 27.64  
 
DEGREE DAYS  
HEATING  
TODAY MM 0 MM 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY MM 18 MM 17  
MONTH TO DATE 596 539 57 605  
SINCE SEP 1 596 539 57 605  
SINCE JAN 1 4905 4009 896 4479    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 5.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 91 1972  
1992  
2002  
MINIMUM TEMPERATURE (F) 78 71 1951  
2001  
 
SUNRISE AND SUNSET  
SEPTEMBER 28 2023.....SUNRISE 715 AM EDT SUNSET 715 PM EDT  
SEPTEMBER 29 2023.....SUNRISE 715 AM EDT SUNSET 713 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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