506  
CDUS43 KLOT 122133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT THU SEP 12 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 12 2024...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 88 1:54 PM 90 2005 77 11 72  
MINIMUM 53 5:16 AM 42 1997 55 -2 53  
AVERAGE 71 66 5 63  
 
PRECIPITATION (IN)  
TODAY 0.00 0.70 2008 0.10 -0.10 0.00  
MONTH TO DATE T 1.20 -1.20 0.75  
SINCE SEP 1 T 1.20 -1.20 0.75  
SINCE JAN 1 24.32 24.57 -0.25 23.20  
 
DEGREE DAYS  
HEATING  
TODAY 0 2 -2 2  
MONTH TO DATE 22 17 5 7  
SINCE SEP 1 22 17 5 7  
SINCE JUL 1 31 28 3 10  
 
COOLING  
TODAY 6 3 3 0  
MONTH TO DATE 22 51 -29 67  
SINCE SEP 1 22 51 -29 67  
SINCE JAN 1 820 775 45 741    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 6.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 5:00 AM  
LOWEST 27 2:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 94 2005  
MINIMUM TEMPERATURE (F) 55 39 2014  
 
SUNRISE AND SUNSET  
SEPTEMBER 12 2024.....SUNRISE 6:31 AM CDT SUNSET 7:07 PM CDT  
SEPTEMBER 13 2024.....SUNRISE 6:32 AM CDT SUNSET 7:05 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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