267  
CDUS43 KLOT 202133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT FRI AUG 20 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 20 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 89 2:59 PM 92 2010 82 7  
MINIMUM 66 5:18 AM 51 2002 62 4  
AVERAGE 78 72 6  
 
PRECIPITATION (IN)  
TODAY 0.00 1.15 2005 0.11 -0.11  
MONTH TO DATE 1.84 2.51 -0.67  
SINCE JUN 1 11.04 9.78 1.26  
SINCE JAN 1 16.19 22.04 -5.85  
 
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 13 7 6  
MONTH TO DATE 177 154 23  
SINCE JUN 1 688 601 87  
SINCE JAN 1 769 657 112    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SE (130)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 4.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 94 2003  
MINIMUM TEMPERATURE (F) 61 49 2004  
 
SUNRISE AND SUNSET  
AUGUST 20 2021........SUNRISE 6:07 AM CDT SUNSET 7:45 PM CDT  
AUGUST 21 2021........SUNRISE 6:08 AM CDT SUNSET 7:44 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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