129  
CDUS43 KLOT 120632  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT TUE OCT 12 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 11 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 76 11:47 AM 82 2010 65 11 71  
MINIMUM 61 11:59 PM 28 2009 44 17 52  
AVERAGE 69 54 15 62  
 
PRECIPITATION (IN)  
YESTERDAY 0.81 1.25 0.11 0.70 0.00  
MONTH TO DATE 2.18 1.15 1.03 0.17  
SINCE SEP 1 3.11 4.15 -1.04 4.13  
SINCE JAN 1 19.52 27.52 -8.00 25.18  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 11 -11 3  
MONTH TO DATE 0 102 -102 108  
SINCE SEP 1 24 202 -178 213  
SINCE JUL 1 24 213 -189 217  
 
COOLING  
YESTERDAY 4 0 4 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 10 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 12.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 84 2008  
MINIMUM TEMPERATURE (F) 43 30 2006  
 
SUNRISE AND SUNSET  
OCTOBER 12 2021.......SUNRISE 7:02 AM CDT SUNSET 6:16 PM CDT  
OCTOBER 13 2021.......SUNRISE 7:03 AM CDT SUNSET 6:14 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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