061  
CDUS43 KLOT 100650  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
150 AM CDT FRI OCT 10 2025  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 9 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 65 3:44 PM 88 2010 66 -1 71  
MINIMUM 39 6:23 AM 26 2000 44 -5 44  
AVERAGE 52 55 -3 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.30 2009 0.11 -0.11 0.00  
MONTH TO DATE 1.79 0.94 0.85 0.12  
SINCE SEP 1 2.43 3.94 -1.51 1.54  
SINCE JAN 1 22.96 27.31 -4.35 25.86  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 10 3 7  
MONTH TO DATE 29 80 -51 50  
SINCE SEP 1 76 180 -104 83  
SINCE JUL 1 87 191 -104 92  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 47 9 38 3  
SINCE SEP 1 174 97 77 113  
SINCE JAN 1 1082 821 261 911    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 4.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 2:00 AM  
LOWEST 40 2:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 84 2010  
MINIMUM TEMPERATURE (F) 44 28 2000  
 
SUNRISE AND SUNSET  
OCTOBER 10 2025.......SUNRISE 7:00 AM CDT SUNSET 6:19 PM CDT  
OCTOBER 11 2025.......SUNRISE 7:01 AM CDT SUNSET 6:17 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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