145  
CDUS43 KLOT 120635  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT SUN OCT 12 2025  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 11 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 68 2:07 PM 83 2024 65 3 83  
MINIMUM 44 6:07 AM 28 2009 44 0 47  
AVERAGE 56 54 2 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.25 2019 0.11 -0.11 0.00  
MONTH TO DATE 1.80 1.15 0.65 0.12  
SINCE SEP 1 2.44 4.15 -1.71 1.54  
SINCE JAN 1 22.97 27.52 -4.55 25.86  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 11 -2 0  
MONTH TO DATE 46 102 -56 57  
SINCE SEP 1 93 202 -109 90  
SINCE JUL 1 104 213 -109 99  
 
COOLING  
YESTERDAY 0 0 0 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 17 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 7.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 6:00 AM  
LOWEST 54 11:00 AM  
AVERAGE 72  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 84 2008  
MINIMUM TEMPERATURE (F) 43 30 2006  
 
SUNRISE AND SUNSET  
OCTOBER 12 2025.......SUNRISE 7:02 AM CDT SUNSET 6:16 PM CDT  
OCTOBER 13 2025.......SUNRISE 7:03 AM CDT SUNSET 6:14 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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