243  
CDUS43 KLOT 312133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT TUE AUG 31 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 31 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 1:06 PM 91 2000 80 4  
2010  
2012  
MINIMUM 59 4:59 AM 43 2009 59 0  
AVERAGE 72 70 2  
 
PRECIPITATION (IN)  
TODAY 0.00 0.94 2013 0.13 -0.13  
MONTH TO DATE 2.06 3.84 -1.78  
SINCE JUN 1 11.26 11.11 0.15  
SINCE JAN 1 16.41 23.37 -6.96  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1  
MONTH TO DATE 0 2 -2  
SINCE JUN 1 11 39 -28  
SINCE JUL 1 0 6 -6  
 
COOLING  
TODAY 7 5 2  
MONTH TO DATE 319 221 98  
SINCE JUN 1 830 668 162  
SINCE JAN 1 911 724 187    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 4.7  
 
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) 80 92 2000  
2008  
2011  
MINIMUM TEMPERATURE (F) 59 44 2009  
 
SUNRISE AND SUNSET  
AUGUST 31 2021........SUNRISE 6:18 AM CDT SUNSET 7:28 PM CDT  
SEPTEMBER 1 2021.....SUNRISE 6:19 AM CDT SUNSET 7:26 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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