867  
CDUS43 KLOT 210638  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1238 AM CST FRI NOV 21 2025  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR NOVEMBER 20 2025...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 47 6:52 PM 64 2003 46 1 48  
MINIMUM 42 8:01 AM 11 2022 29 13 32  
AVERAGE 45 38 7 40  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.26 2007 0.08 -0.08 0.02  
MONTH TO DATE 0.80 1.50 -0.70 2.99  
SINCE SEP 1 4.51 7.49 -2.98 5.43  
SINCE JAN 1 25.04 30.86 -5.82 29.75  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 28 -8 25  
MONTH TO DATE 427 471 -44 300  
SINCE SEP 1 765 978 -213 598  
SINCE JUL 1 776 989 -213 607  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 176 99 77 129  
SINCE JAN 1 1084 823 261 927    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 6.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 6:00 AM  
LOWEST 86 2:00 PM  
AVERAGE 93  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 60 2010  
MINIMUM TEMPERATURE (F) 29 6 2014  
 
SUNRISE AND SUNSET  
NOVEMBER 21 2025......SUNRISE 6:50 AM CST SUNSET 4:27 PM CST  
NOVEMBER 22 2025......SUNRISE 6:51 AM CST SUNSET 4:27 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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