105  
CDUS43 KLOT 160642  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1242 AM CST TUE JAN 16 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JANUARY 15 2024...  
 
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)  
YESTERDAY  
MAXIMUM -1 11:59 PM 44 2023 30 -31 44  
MINIMUM -14 4:50 AM -17 2009 16 -30 23  
AVERAGE -7 23 -30 34  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.12 2007 0.04 -0.04 0.00  
MONTH TO DATE 1.07 0.64 0.43 0.96  
SINCE DEC 1 3.33 2.31 1.02 2.87  
SINCE JAN 1 1.07 0.64 0.43 0.96  
 
DEGREE DAYS  
HEATING  
YESTERDAY 72 42 30 31  
MONTH TO DATE 604 621 -17 458  
SINCE DEC 1 1456 1755 -299 1608  
SINCE JUL 1 2622 3041 -419 2839  
 
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 16 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 10.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 4:00 AM  
LOWEST 67 2:00 PM  
AVERAGE 73  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 51 2023  
MINIMUM TEMPERATURE (F) 16 -22 2009  
 
SUNRISE AND SUNSET  
JANUARY 16 2024.......SUNRISE 7:18 AM CST SUNSET 4:48 PM CST  
JANUARY 17 2024.......SUNRISE 7:17 AM CST SUNSET 4:49 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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