474  
CDUS43 KLOT 032133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT FRI OCT 03 2025  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 3 2025...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 89R 2:42 PM 88 2018 69 20 78  
MINIMUM 59 5:50 AM 31 2004 47 12 46  
AVERAGE 74 58 16 62  
 
PRECIPITATION (IN)  
TODAY 0.00 1.17 2000 0.10 -0.10 0.00  
MONTH TO DATE 0.00 0.32 -0.32 0.00  
SINCE SEP 1 0.64 3.32 -2.68 1.42  
SINCE JAN 1 21.17 26.69 -5.52 25.74  
 
DEGREE DAYS  
HEATING  
TODAY 0 8 -8 3  
MONTH TO DATE 0 24 -24 16  
SINCE SEP 1 47 124 -77 49  
SINCE JUL 1 58 135 -77 58  
 
COOLING  
TODAY 9 1 8 0  
MONTH TO DATE 20 3 17 0  
SINCE SEP 1 147 91 56 110  
SINCE JAN 1 1055 815 240 908    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 4.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 5:00 AM  
LOWEST 32 3:00 PM  
AVERAGE 58  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 87 2005  
MINIMUM TEMPERATURE (F) 46 31 2004  
 
SUNRISE AND SUNSET  
OCTOBER 3 2025.......SUNRISE 6:52 AM CDT SUNSET 6:31 PM CDT  
OCTOBER 4 2025.......SUNRISE 6:53 AM CDT SUNSET 6:29 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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