801  
CDUS43 KLOT 030632  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT FRI SEP 03 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 2 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 80 2:20 PM 95 2008 80 0 86  
MINIMUM 57 3:55 AM 43 2017 59 -2 61  
AVERAGE 69 69 0 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.14 0.10 -0.10 0.04  
MONTH TO DATE 0.00 0.20 -0.20 0.25  
SINCE SEP 1 0.00 0.20 -0.20 0.25  
SINCE JAN 1 16.41 23.57 -7.16 21.30  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 2 -2 0  
SINCE SEP 1 0 2 -2 0  
SINCE JUL 1 0 13 -13 4  
 
COOLING  
YESTERDAY 4 5 -1 9  
MONTH TO DATE 7 10 -3 13  
SINCE SEP 1 7 10 -3 13  
SINCE JAN 1 918 734 184 906    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 3.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 90 1999  
2012  
2015  
MINIMUM TEMPERATURE (F) 58 50 2017  
 
SUNRISE AND SUNSET  
SEPTEMBER 3 2021.....SUNRISE 6:21 AM CDT SUNSET 7:23 PM CDT  
SEPTEMBER 4 2021.....SUNRISE 6:22 AM CDT SUNSET 7:21 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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