642  
CDUS43 KLOT 130730  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
230 AM CDT WED OCT 13 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 12 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 66 4:24 PM 84 2008 64 2 65  
MINIMUM 51 11:59 PM 30 2006 43 8 43  
AVERAGE 59 54 5 54  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.54 0.11 -0.10 0.12  
MONTH TO DATE 2.19 1.26 0.93 0.29  
SINCE SEP 1 3.12 4.26 -1.14 4.25  
SINCE JAN 1 19.53 27.63 -8.10 25.30  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 12 -6 11  
MONTH TO DATE 6 114 -108 119  
SINCE SEP 1 30 214 -184 224  
SINCE JUL 1 30 225 -195 228  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 46 9 37 1  
SINCE SEP 1 174 97 77 49  
SINCE JAN 1 1085 821 264 942    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 7.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 78 2008  
MINIMUM TEMPERATURE (F) 43 31 2002  
2006  
2018  
 
SUNRISE AND SUNSET  
OCTOBER 13 2021.......SUNRISE 7:03 AM CDT SUNSET 6:14 PM CDT  
OCTOBER 14 2021.......SUNRISE 7:05 AM CDT SUNSET 6:13 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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