022  
CDUS43 KLOT 150636  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
136 AM CDT WED OCT 15 2025  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 14 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 71 2:21 PM 78 2020 63 8 58  
MINIMUM 49 5:37 AM 28 2002 43 6 40  
AVERAGE 60 53 7 49  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.90 2017 0.10 -0.10 T  
MONTH TO DATE 1.80 1.46 0.34 0.12  
SINCE SEP 1 2.44 4.46 -2.02 1.54  
SINCE JAN 1 22.97 27.83 -4.86 25.86  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 12 -7 16  
MONTH TO DATE 64 138 -74 81  
SINCE SEP 1 111 238 -127 114  
SINCE JUL 1 122 249 -127 123  
 
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 14 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 8.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 2:00 AM  
LOWEST 55 2:00 PM  
AVERAGE 76  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 79 1999  
MINIMUM TEMPERATURE (F) 42 27 1997  
2006  
 
SUNRISE AND SUNSET  
OCTOBER 15 2025.......SUNRISE 7:06 AM CDT SUNSET 6:11 PM CDT  
OCTOBER 16 2025.......SUNRISE 7:07 AM CDT SUNSET 6:09 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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