735  
CDUS43 KLOT 200634  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT WED OCT 20 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 19 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 72 1:13 PM 75 2000 61 11 49  
MINIMUM 45 4:19 AM 28 1997 41 4 35  
AVERAGE 59 51 8 42  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.15 0.09 -0.09 0.05  
MONTH TO DATE 2.75 1.94 0.81 0.50  
SINCE SEP 1 3.68 4.94 -1.26 4.46  
SINCE JAN 1 20.09 28.31 -8.22 25.51  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 14 -8 23  
MONTH TO DATE 69 205 -136 233  
SINCE SEP 1 93 305 -212 338  
SINCE JUL 1 93 316 -223 342  
 
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 S (190)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 7.0  
 
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) 61 84 2003  
MINIMUM TEMPERATURE (F) 41 26 2018  
 
SUNRISE AND SUNSET  
OCTOBER 20 2021.......SUNRISE 7:11 AM CDT SUNSET 6:03 PM CDT  
OCTOBER 21 2021.......SUNRISE 7:13 AM CDT SUNSET 6:02 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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