642  
CDUS43 KLOT 252134  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT TUE AUG 25 2026  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 25 2026...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM MM MM 95 2003 81 MM 71  
MINIMUM MM MM 46 2017 61 MM 53  
AVERAGE MM 71 MM 62  
 
PRECIPITATION (IN)  
TODAY MM 1.58 2001 0.12 MM 0.00  
MONTH TO DATE 4.22 3.09 1.13 2.68  
SINCE JUN 1 16.26 10.36 5.90 12.29  
SINCE JAN 1 29.14 22.62 6.52 20.35  
 
DEGREE DAYS  
HEATING  
TODAY MM 0 MM 3  
MONTH TO DATE 0 0 0 4  
SINCE JUN 1 25 37 -12 22  
SINCE JUL 1 1 4 -3 4  
 
COOLING  
TODAY MM 6 MM 0  
MONTH TO DATE 161 185 -24 238  
SINCE JUN 1 622 632 -10 870  
SINCE JAN 1 681 688 -7 903    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED MM  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 94 2024  
MINIMUM TEMPERATURE (F) 60 48 2025  
 
SUNRISE AND SUNSET  
AUGUST 25 2026........SUNRISE 6:12 AM CDT SUNSET 7:38 PM CDT  
AUGUST 26 2026........SUNRISE 6:13 AM CDT SUNSET 7:36 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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