497  
CDUS43 KLOT 080632  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT WED SEP 08 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 7 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 90R 12:20 PM 90 2016 78 12 78  
MINIMUM 60 11:59 PM 46 2011 57 3 61  
AVERAGE 75 68 7 70  
 
PRECIPITATION (IN)  
YESTERDAY T 1.27 0.10 -0.10 0.18  
MONTH TO DATE 0.02 0.70 -0.68 1.76  
SINCE SEP 1 0.02 0.70 -0.68 1.76  
SINCE JAN 1 16.43 24.07 -7.64 22.81  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 7 -7 1  
SINCE SEP 1 0 7 -7 1  
SINCE JUL 1 0 18 -18 5  
 
COOLING  
YESTERDAY 10 4 6 5  
MONTH TO DATE 26 32 -6 34  
SINCE SEP 1 26 32 -6 34  
SINCE JAN 1 937 756 181 927    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 11.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 90 2002  
MINIMUM TEMPERATURE (F) 57 48 2010  
 
SUNRISE AND SUNSET  
SEPTEMBER 8 2021.....SUNRISE 6:26 AM CDT SUNSET 7:14 PM CDT  
SEPTEMBER 9 2021.....SUNRISE 6:27 AM CDT SUNSET 7:12 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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