881  
CDUS43 KLOT 100640  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1240 AM CST FRI JAN 10 2025  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JANUARY 9 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 29 2:53 PM 52 2002 31 -2 34  
MINIMUM 8 7:20 AM -11 1999 17 -9 33  
2014  
AVERAGE 19 24 -5 34  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.53 2024 0.05 -0.05 0.53  
MONTH TO DATE 0.01 0.40 -0.39 0.67  
SINCE DEC 1 1.08 2.07 -0.99 2.93  
SINCE JAN 1 0.01 0.40 -0.39 0.67  
 
DEGREE DAYS  
HEATING  
YESTERDAY 46 42 4 31  
MONTH TO DATE 392 369 23 305  
SINCE DEC 1 1347 1503 -156 1157  
SINCE JUL 1 2261 2789 -528 2323  
 
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 18 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 9.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 7:00 AM  
LOWEST 48 12:00 PM  
AVERAGE 64  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 54 2018  
MINIMUM TEMPERATURE (F) 16 -7 2010  
 
SUNRISE AND SUNSET  
JANUARY 10 2025.......SUNRISE 7:20 AM CST SUNSET 4:42 PM CST  
JANUARY 11 2025.......SUNRISE 7:20 AM CST SUNSET 4:43 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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