179  
CDUS42 KKEY 200531  
CLIEYW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST, FL  
129 AM EDT WED SEP 20 2017  
   
...............................
 
 
   
..THE KEY WEST CLIMATE SUMMARY FOR SEPTEMBER 19 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 89 312 PM 92 1987 88 1 89  
1951  
MINIMUM 79 638 AM 70 1890 78 1 82  
AVERAGE 84 83 1 86  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 4.23 1963 0.24 -0.24 0.00  
MONTH TO DATE 7.35 4.25 3.10 3.89  
SINCE SEP 1 7.35 4.25 3.10 3.89  
SINCE JAN 1 27.59 27.92 -0.33 29.23  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE SEP 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
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 18 1 21  
MONTH TO DATE 383 352 31 372  
SINCE SEP 1 383 352 31 372  
SINCE JAN 1 4014 3541 473 3679    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 3.8  
 
 
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 94  
LOWEST 63  
AVERAGE 79  
   
......................................................
 
 
 
THE KEY WEST CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 93 1987  
1951  
MINIMUM TEMPERATURE (F) 78 70 1890  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2017.....SUNRISE 715 AM EDT SUNSET 725 PM EDT  
SEPTEMBER 21 2017.....SUNRISE 715 AM EDT SUNSET 724 PM EDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
BWC  
 
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