558  
CDUS42 KKEY 302020  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
420 PM EDT SAT SEP 30 2023  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 30 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 90 944 AM 92 1958 89 1 81  
MINIMUM 83 153 PM 70 1953 78 5 73  
AVERAGE 87 83 4 77  
 
PRECIPITATION (IN)  
TODAY 0.01 4.08 1994 0.22 -0.21 0.00  
MONTH TO DATE 7.46 6.37 1.09 6.80  
SINCE SEP 1 7.46 6.37 1.09 6.80  
SINCE JAN 1 31.02 29.83 1.19 27.65  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 22 18 4 12  
MONTH TO DATE 656 574 82 634  
SINCE SEP 1 656 574 82 634  
SINCE JAN 1 4965 4044 921 4508    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 6.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88  
LOWEST 74  
AVERAGE 81  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 92 1959  
1987  
2014  
MINIMUM TEMPERATURE (F) 78 69 1953  
1954  
 
SUNRISE AND SUNSET  
SEPTEMBER 30 2023.....SUNRISE 716 AM EDT SUNSET 712 PM EDT  
OCTOBER 1 2023.......SUNRISE 716 AM EDT SUNSET 711 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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