839  
CDUS43 KLOT 212234  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CST FRI NOV 21 2025  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR NOVEMBER 21 2025...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 48 1:29 PM 60 2010 45 3 39  
MINIMUM 37 7:35 AM 6 2014 29 8 29  
AVERAGE 43 37 6 34  
 
PRECIPITATION (IN)  
TODAY 0.00 0.53 2019 0.07 -0.07 0.08  
MONTH TO DATE 0.80 1.57 -0.77 3.07  
SINCE SEP 1 4.51 7.56 -3.05 5.51  
SINCE JAN 1 25.04 30.93 -5.89 29.83  
 
DEGREE DAYS  
HEATING  
TODAY 22 28 -6 31  
MONTH TO DATE 449 499 -50 331  
SINCE SEP 1 787 1006 -219 629  
SINCE JUL 1 798 1017 -219 638  
 
COOLING  
TODAY 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 9 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 3.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 5:00 AM  
LOWEST 68 1:00 PM  
AVERAGE 84  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 66 2010  
MINIMUM TEMPERATURE (F) 29 4 2015  
 
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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