819  
CDUS43 KLOT 200636  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1236 AM CST MON NOV 20 2017  
 
   
...............................
 
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR NOVEMBER 19 2017...  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1997 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 36 1217 AM 59 2012 47 -11 39  
MINIMUM 25 1103 PM 15 2014 30 -5 26  
AVERAGE 31 39 -8 33  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.27 0.09 -0.09 T  
MONTH TO DATE 1.39 2.03 -0.64 0.10  
SINCE SEP 1 9.98 8.51 1.47 3.50  
SINCE JAN 1 36.54 34.14 2.40 29.76  
 
DEGREE DAYS  
HEATING  
YESTERDAY 34 26 8 32  
MONTH TO DATE 534 418 116 283  
SINCE SEP 1 911 920 -9 607  
SINCE JUL 1 923 929 -6 608  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 3  
SINCE SEP 1 145 90 55 161  
SINCE JAN 1 695 814 -119 1007    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION W (290)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 12.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
   
......................................................
 
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 47 64 2003  
MINIMUM TEMPERATURE (F) 30 13 2014  
 
 
SUNRISE AND SUNSET  
NOVEMBER 20 2017......SUNRISE 649 AM CST SUNSET 428 PM CST  
NOVEMBER 21 2017......SUNRISE 650 AM CST SUNSET 427 PM CST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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