756  
CDUS43 KLOT 140639  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
139 AM CDT TUE SEP 14 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 13 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 88 3:29 PM 94 2005 77 11 76  
MINIMUM 65 4:02 AM 39 2014 55 10 55  
AVERAGE 77 66 11 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 6.02 0.09 -0.09 0.04  
MONTH TO DATE 0.02 1.29 -1.27 3.48  
SINCE SEP 1 0.02 1.29 -1.27 3.48  
SINCE JAN 1 16.43 24.66 -8.23 24.53  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 0 19 -19 20  
SINCE SEP 1 0 19 -19 20  
SINCE JUL 1 0 30 -30 24  
 
COOLING  
YESTERDAY 12 3 9 1  
MONTH TO DATE 64 54 10 35  
SINCE SEP 1 64 54 10 35  
SINCE JAN 1 975 778 197 928    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 6.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 87 2018  
MINIMUM TEMPERATURE (F) 55 39 2011  
 
SUNRISE AND SUNSET  
SEPTEMBER 14 2021.....SUNRISE 6:32 AM CDT SUNSET 7:04 PM CDT  
SEPTEMBER 15 2021.....SUNRISE 6:33 AM CDT SUNSET 7:02 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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