576  
CDUS43 KLOT 140636  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
136 AM CDT SAT AUG 14 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 13 2021...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 83 2:03 PM 91 2010 82 1 87  
MINIMUM 64 11:59 PM 50 2004 63 1 62  
AVERAGE 74 72 2 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.86 0.12 -0.12 0.00  
MONTH TO DATE 1.82 1.64 0.18 0.45  
SINCE JUN 1 11.02 8.91 2.11 2.64  
SINCE JAN 1 16.17 21.17 -5.00 20.54  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 4  
SINCE JUN 1 11 37 -26 20  
SINCE JUL 1 0 4 -4 4  
 
COOLING  
YESTERDAY 9 8 1 10  
MONTH TO DATE 124 104 20 88  
SINCE JUN 1 635 551 84 671  
SINCE JAN 1 716 607 109 722    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (310)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 5.2  
 
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) 82 89 2020  
MINIMUM TEMPERATURE (F) 62 46 2004  
 
SUNRISE AND SUNSET  
AUGUST 14 2021........SUNRISE 6:00 AM CDT SUNSET 7:54 PM CDT  
AUGUST 15 2021........SUNRISE 6:01 AM CDT SUNSET 7:53 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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