102  
CDUS42 KKEY 232020  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
420 PM EDT SAT SEP 23 2023  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 23 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 88 300 PM 93 1951 89 -1 92  
2020  
MINIMUM 74 622 AM 70 1953 78 -4 80  
AVERAGE 81 84 -3 86  
 
PRECIPITATION (IN)  
TODAY 1.93R 0.86 1959 0.23 1.70 0.00  
MONTH TO DATE 4.42 4.89 -0.47 4.38  
SINCE SEP 1 4.42 4.89 -0.47 4.38  
SINCE JAN 1 27.98 28.35 -0.37 25.23  
 
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 16 19 -3 21  
MONTH TO DATE 511 447 64 510  
SINCE SEP 1 511 447 64 510  
SINCE JAN 1 4820 3917 903 4384    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 7.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97  
LOWEST 65  
AVERAGE 81  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 96 1987  
MINIMUM TEMPERATURE (F) 78 68 1953  
 
SUNRISE AND SUNSET  
SEPTEMBER 23 2023.....SUNRISE 713 AM EDT SUNSET 720 PM EDT  
SEPTEMBER 24 2023.....SUNRISE 714 AM EDT SUNSET 719 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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