804  
CDUS43 KLOT 202139  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
439 PM CDT WED OCT 20 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 20 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 72 2:49 PM 84 2003 61 11  
MINIMUM 47 5:55 AM 26 2018 41 6  
AVERAGE 60 50 10  
 
PRECIPITATION (IN)  
TODAY 0.00 0.17 2008 0.09 -0.09  
MONTH TO DATE 2.75 2.03 0.72  
SINCE SEP 1 3.68 5.03 -1.35  
SINCE JAN 1 20.09 28.40 -8.31  
 
DEGREE DAYS  
HEATING  
TODAY 5 15 -10  
MONTH TO DATE 74 220 -146  
SINCE SEP 1 98 320 -222  
SINCE JUL 1 98 331 -233  
 
COOLING  
TODAY 0 0 0  
MONTH TO DATE 46 9 37  
SINCE SEP 1 174 97 77  
SINCE JAN 1 1085 821 264    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 8.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 79 2007  
MINIMUM TEMPERATURE (F) 40 23 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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