893  
CDUS43 KLOT 302134  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT MON SEP 30 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 30 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 80 1:55 PM 86 2019 70 10 82  
MINIMUM 58 5:26 AM 35 2004 48 10 57  
AVERAGE 69 59 10 70  
 
PRECIPITATION (IN)  
TODAY 0.00 0.35 1998 0.10 -0.10 0.00  
MONTH TO DATE 1.42 3.00 -1.58 2.77  
SINCE SEP 1 1.42 3.00 -1.58 2.77  
SINCE JAN 1 25.74 26.37 -0.63 25.22  
 
DEGREE DAYS  
HEATING  
TODAY 0 7 -7 0  
MONTH TO DATE 33 100 -67 47  
SINCE SEP 1 33 100 -67 47  
SINCE JUL 1 42 111 -69 50  
 
COOLING  
TODAY 4 1 3 5  
MONTH TO DATE 110 88 22 101  
SINCE SEP 1 110 88 22 101  
SINCE JAN 1 908 812 96 775    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 6.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 4:00 AM  
LOWEST 54 2:00 PM  
AVERAGE 74  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 87 2019  
MINIMUM TEMPERATURE (F) 48 31 2003  
 
SUNRISE AND SUNSET  
SEPTEMBER 30 2024.....SUNRISE 6:49 AM CDT SUNSET 6:35 PM CDT  
OCTOBER 1 2024.......SUNRISE 6:50 AM CDT SUNSET 6:34 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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