518  
CDUS42 KKEY 170529  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
129 AM EDT THU AUG 17 2023  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR AUGUST 16 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 92 204 PM 95 1989 92 0 93  
1993  
MINIMUM 81 432 AM 70 1952 80 1 80  
AVERAGE 87 86 1 87  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.03 2003 0.18 -0.18 0.00  
MONTH TO DATE 3.10 2.56 0.54 1.69  
SINCE JUN 1 10.23 10.56 -0.33 13.28  
SINCE JAN 1 19.37 20.70 -1.33 20.12  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 22 21 1 22  
MONTH TO DATE 385 336 49 348  
SINCE JUN 1 1776 1543 233 1610  
SINCE JAN 1 3969 3166 803 3524    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 4.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85  
LOWEST 62  
AVERAGE 74  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 92 96 1993  
MINIMUM TEMPERATURE (F) 80 70 1953  
 
SUNRISE AND SUNSET  
AUGUST 17 2023........SUNRISE 659 AM EDT SUNSET 757 PM EDT  
AUGUST 18 2023........SUNRISE 700 AM EDT SUNSET 756 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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