571  
CDUS43 KLOT 232138  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
438 PM CDT SAT OCT 23 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 23 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 56 2:55 PM 75 2004 59 -3  
MINIMUM 32 5:21 AM 28 2005 40 -8  
AVERAGE 44 49 -5  
 
PRECIPITATION (IN)  
TODAY 0.00 1.03 2004 0.10 -0.10  
MONTH TO DATE 2.75 2.31 0.44  
SINCE SEP 1 3.68 5.31 -1.63  
SINCE JAN 1 20.09 28.68 -8.59  
 
DEGREE DAYS  
HEATING  
TODAY 21 16 5  
MONTH TO DATE 123 266 -143  
SINCE SEP 1 147 366 -219  
SINCE JUL 1 147 377 -230  
 
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 2 RESULTANT WIND DIRECTION N (350)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 3.3  
 
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) 59 78 2012  
MINIMUM TEMPERATURE (F) 39 25 1999  
 
SUNRISE AND SUNSET  
OCTOBER 23 2021.......SUNRISE 7:15 AM CDT SUNSET 5:59 PM CDT  
OCTOBER 24 2021.......SUNRISE 7:16 AM CDT SUNSET 5:57 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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