016  
CDUS43 KLOT 280636  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
136 AM CDT TUE SEP 28 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 27 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 88R 3:33 PM 84 1998 71 17 76  
MINIMUM 58 11:59 PM 39 2001 49 9 53  
2012  
AVERAGE 73 60 13 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.00 0.10 -0.10 0.25  
MONTH TO DATE 0.93 2.72 -1.79 3.73  
SINCE SEP 1 0.93 2.72 -1.79 3.73  
SINCE JAN 1 17.34 26.09 -8.75 24.78  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 0  
MONTH TO DATE 23 80 -57 72  
SINCE SEP 1 23 80 -57 72  
SINCE JUL 1 23 91 -68 76  
 
COOLING  
YESTERDAY 8 1 7 0  
MONTH TO DATE 122 85 37 48  
SINCE SEP 1 122 85 37 48  
SINCE JAN 1 1033 809 224 941    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 10.4  
 
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) 71 84 2013  
MINIMUM TEMPERATURE (F) 49 37 2000  
 
SUNRISE AND SUNSET  
SEPTEMBER 28 2021.....SUNRISE 6:47 AM CDT SUNSET 6:39 PM CDT  
SEPTEMBER 29 2021.....SUNRISE 6:48 AM CDT SUNSET 6:38 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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