630  
CDUS43 KLOT 160634  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1234 AM CST MON DEC 16 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 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 45 2:32 PM 65 2021 35 10 52  
MINIMUM 40 1:45 AM -3 2016 22 18 26  
AVERAGE 43 28 15 39  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.31 2012 0.06 -0.05 0.00  
MONTH TO DATE 0.26 0.90 -0.64 1.00  
SINCE DEC 1 0.26 0.90 -0.64 1.00  
SINCE JAN 1 30.09 32.46 -2.37 29.66  
 
DEGREE DAYS  
HEATING  
YESTERDAY 22 37 -15 26  
MONTH TO DATE 560 515 45 414  
SINCE DEC 1 560 515 45 414  
SINCE JUL 1 1474 1801 -327 1580  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 927 823 104 802    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 6.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 10:00 AM  
LOWEST 89 2:00 AM  
AVERAGE 93  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 35 65 2021  
MINIMUM TEMPERATURE (F) 21 3 2013  
 
SUNRISE AND SUNSET  
DECEMBER 16 2024......SUNRISE 7:15 AM CST SUNSET 4:23 PM CST  
DECEMBER 17 2024......SUNRISE 7:15 AM CST SUNSET 4:23 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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