360  
CDUS43 KLOT 240632  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT FRI SEP 24 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 23 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 69 3:44 PM 94 2017 73 -4 79  
MINIMUM 48 8:52 PM 36 2012 51 -3 52  
AVERAGE 59 62 -3 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.26 0.10 -0.10 0.00  
MONTH TO DATE 0.84 2.31 -1.47 3.48  
SINCE SEP 1 0.84 2.31 -1.47 3.48  
SINCE JAN 1 17.25 25.68 -8.43 24.53  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 5 1 0  
MONTH TO DATE 14 57 -43 72  
SINCE SEP 1 14 57 -43 72  
SINCE JUL 1 14 68 -54 76  
 
COOLING  
YESTERDAY 0 2 -2 1  
MONTH TO DATE 112 78 34 42  
SINCE SEP 1 112 78 34 42  
SINCE JAN 1 1023 802 221 935    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION NW (320)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 10.3  
 
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) 73 91 2007  
2017  
MINIMUM TEMPERATURE (F) 50 32 2012  
 
SUNRISE AND SUNSET  
SEPTEMBER 24 2021.....SUNRISE 6:43 AM CDT SUNSET 6:46 PM CDT  
SEPTEMBER 25 2021.....SUNRISE 6:44 AM CDT SUNSET 6:44 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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