881  
CDUS43 KLOT 172145  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
445 PM CDT TUE AUG 17 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 17 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 84 2:43 PM 87 2015 82 2  
MINIMUM 59 5:00 AM 51 2013 62 -3  
AVERAGE 72 72 0  
 
PRECIPITATION (IN)  
TODAY 0.00 0.84 2000 0.13 -0.13  
MONTH TO DATE 1.82 2.16 -0.34  
SINCE JUN 1 11.02 9.43 1.59  
SINCE JAN 1 16.17 21.69 -5.52  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0  
MONTH TO DATE 0 0 0  
SINCE JUN 1 11 37 -26  
SINCE JUL 1 0 4 -4  
 
COOLING  
TODAY 7 7 0  
MONTH TO DATE 140 133 7  
SINCE JUN 1 651 580 71  
SINCE JAN 1 732 636 96    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 2.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 86 2006  
2016  
MINIMUM TEMPERATURE (F) 62 48 2012  
 
SUNRISE AND SUNSET  
AUGUST 17 2021........SUNRISE 6:03 AM CDT SUNSET 7:50 PM CDT  
AUGUST 18 2021........SUNRISE 6:04 AM CDT SUNSET 7:48 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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