756  
CDUS43 KLOT 210635  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT MON AUG 21 2017  
 
   
...............................
 
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 20 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 86 127 PM 92 2010 82 4 79  
MINIMUM 59 542 AM 51 2002 61 -2 61  
AVERAGE 73 72 1 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.14 1.15 0.14 0.00 0.43  
MONTH TO DATE 1.71 3.11 -1.40 1.09  
SINCE JUN 1 9.00 11.12 -2.12 9.95  
SINCE JAN 1 26.35 24.14 2.21 24.23  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 3 0 3 0  
SINCE JUN 1 21 38 -17 13  
SINCE JUL 1 4 2 2 1  
 
COOLING  
YESTERDAY 8 7 1 5  
MONTH TO DATE 99 154 -55 220  
SINCE JUN 1 500 610 -110 690  
SINCE JAN 1 523 656 -133 763    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 4.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
   
......................................................
 
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 94 2003  
MINIMUM TEMPERATURE (F) 61 49 2004  
 
 
SUNRISE AND SUNSET  
AUGUST 21 2017........SUNRISE 608 AM CDT SUNSET 744 PM CDT  
AUGUST 22 2017........SUNRISE 609 AM CDT SUNSET 742 PM CDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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