635  
CDUS43 KLOT 042133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT SAT OCT 04 2025  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 4 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 1:04 PM 87 2005 68 21 71  
MINIMUM 62 6:00 AM 31 2004 46 16 49  
AVERAGE 76 57 19 60  
 
PRECIPITATION (IN)  
TODAY 0.00 0.98 2001 0.11 -0.11 0.12  
MONTH TO DATE 0.00 0.43 -0.43 0.12  
SINCE SEP 1 0.64 3.43 -2.79 1.54  
SINCE JAN 1 21.17 26.80 -5.63 25.86  
 
DEGREE DAYS  
HEATING  
TODAY 0 8 -8 5  
MONTH TO DATE 0 32 -32 21  
SINCE SEP 1 47 132 -85 54  
SINCE JUL 1 58 143 -85 63  
 
COOLING  
TODAY 11 1 10 0  
MONTH TO DATE 31 4 27 0  
SINCE SEP 1 158 92 66 110  
SINCE JAN 1 1066 816 250 908    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 7.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 4:00 AM  
LOWEST 31 3:00 PM  
AVERAGE 59  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 85 1997  
2007  
MINIMUM TEMPERATURE (F) 46 27 2004  
 
SUNRISE AND SUNSET  
OCTOBER 4 2025.......SUNRISE 6:53 AM CDT SUNSET 6:29 PM CDT  
OCTOBER 5 2025.......SUNRISE 6:55 AM CDT SUNSET 6:27 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab IL Page
The Nexlab IN Page
Main Text Page