310  
CDUS42 KKEY 230529  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
129 AM EDT SAT SEP 23 2023  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 22 2023
 
 
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)  
YESTERDAY  
MAXIMUM 89 359 PM 94 1987 89 0 89  
MINIMUM 79 402 AM 66 1959 78 1 79  
AVERAGE 84 84 0 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 4.70 1959 0.23 -0.23 0.00  
MONTH TO DATE 2.49 4.66 -2.17 4.38  
SINCE SEP 1 2.49 4.66 -2.17 4.38  
SINCE JAN 1 26.05 28.12 -2.07 25.23  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 19 19 0 19  
MONTH TO DATE 495 428 67 489  
SINCE SEP 1 495 428 67 489  
SINCE JAN 1 4804 3898 906 4363    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88  
LOWEST 57  
AVERAGE 73  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 93 1951  
2020  
MINIMUM TEMPERATURE (F) 78 70 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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