349  
CDUS43 KLOT 142133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT MON SEP 14 2026  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 14 2026...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2026  
 
WEATHER ITEM OBSERVED RECORD YEAR NORMAL DEPARTURE LAST  
VALUE VALUE VALUE FROM YEAR  
NORMAL    
........................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 70 89 2024 76 -6 86  
MINIMUM 46 39 2011 55 -9 61  
AVERAGE 58 65 -7 74  
 
PRECIPITATION (IN)  
TODAY 0.00 1.21 2008 0.10 -0.10 0.00  
MONTH TO DATE 0.01 1.39 -1.38 0.34  
SINCE SEP 1 0.01 1.39 -1.38 0.34  
SINCE JAN 1 29.15 24.76 4.39 20.87  
 
DEGREE DAYS  
HEATING  
TODAY 7 3 4 0  
MONTH TO DATE 10 22 -12 47  
SINCE SEP 1 10 22 -12 47  
SINCE JUL 1 11 33 -22 58  
 
COOLING  
TODAY 0 3 -3 9  
MONTH TO DATE 127 57 70 32  
SINCE SEP 1 127 57 70 32  
SINCE JAN 1 808 781 27 940    
........................................................  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 4:00 AM  
LOWEST 47 3:00 PM  
AVERAGE 72  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 89 2024  
MINIMUM TEMPERATURE (F) 54 36 2007  
 
SUNRISE AND SUNSET  
SEPTEMBER 14 2026.....SUNRISE 6:32 AM CDT SUNSET 7:04 PM CDT  
SEPTEMBER 15 2026.....SUNRISE 6:33 AM CDT SUNSET 7:02 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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