581  
CDUS43 KLOT 050633  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1233 AM CST SUN JAN 05 2025  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JANUARY 4 2025...  
 
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)  
YESTERDAY  
MAXIMUM 24 2:39 PM 55 1998 31 -7 34  
MINIMUM 11 8:01 AM -13 1999 17 -6 25  
AVERAGE 18 24 -6 30  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.75 2007 0.04 -0.04 0.00  
MONTH TO DATE T 0.18 -0.18 0.00  
SINCE DEC 1 1.07 1.85 -0.78 2.26  
SINCE JAN 1 T 0.18 -0.18 0.00  
 
DEGREE DAYS  
HEATING  
YESTERDAY 47 41 6 35  
MONTH TO DATE 166 163 3 138  
SINCE DEC 1 1121 1297 -176 990  
SINCE JUL 1 2035 2583 -548 2156  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 9.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 7:00 AM  
LOWEST 38 2:00 PM  
AVERAGE 54  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 54 1998  
MINIMUM TEMPERATURE (F) 17 -24 1999  
 
SUNRISE AND SUNSET  
JANUARY 5 2025.......SUNRISE 7:21 AM CST SUNSET 4:37 PM CST  
JANUARY 6 2025.......SUNRISE 7:21 AM CST SUNSET 4:38 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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