384  
CDUS43 KLOT 092156  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
456 PM CDT MON AUG 09 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 9 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 82 9:00 AM 94 2005 83 -1  
MINIMUM 69 MM 49 1999 63 6  
AVERAGE 76 73 3  
 
PRECIPITATION (IN)  
TODAY 0.26 0.88 2008 0.12 0.14  
MONTH TO DATE 0.63 1.16 -0.53  
SINCE JUN 1 9.83 8.43 1.40  
SINCE JAN 1 14.98 20.69 -5.71  
 
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 11 8 3  
MONTH TO DATE 73 72 1  
SINCE JUN 1 584 519 65  
SINCE JAN 1 665 575 90    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION S (170)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 11.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 91 2016  
MINIMUM TEMPERATURE (F) 63 54 2008  
 
SUNRISE AND SUNSET  
AUGUST 9 2021........SUNRISE 5:55 AM CDT SUNSET 8:01 PM CDT  
AUGUST 10 2021........SUNRISE 5:56 AM CDT SUNSET 8:00 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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