470  
CDUS43 KLOT 110633  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
133 AM CDT MON AUG 11 2025  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 10 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 88 10:24 AM 92 2021 83 5 74  
MINIMUM 76 11:59 PM 54 2008 63 13 54  
2024  
AVERAGE 82 73 9 64  
 
PRECIPITATION (IN)  
YESTERDAY T 0.31 2020 0.11 -0.11 0.00  
MONTH TO DATE T 1.27 -1.27 0.74  
SINCE JUN 1 9.61 8.54 1.07 10.33  
SINCE JAN 1 17.67 20.80 -3.13 22.97  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 1  
MONTH TO DATE 0 0 0 2  
SINCE JUN 1 18 37 -19 18  
SINCE JUL 1 0 4 -4 5  
 
COOLING  
YESTERDAY 17 8 9 0  
MONTH TO DATE 95 80 15 81  
SINCE JUN 1 727 527 200 585  
SINCE JAN 1 760 583 177 639    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 10.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 8:00 PM  
LOWEST 59 10:00 AM  
AVERAGE 72  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 92 2016  
MINIMUM TEMPERATURE (F) 63 50 2004  
 
SUNRISE AND SUNSET  
AUGUST 11 2025........SUNRISE 5:57 AM CDT SUNSET 7:58 PM CDT  
AUGUST 12 2025........SUNRISE 5:58 AM CDT SUNSET 7:57 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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