175  
CDUS43 KLOT 210636  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1236 AM CST SUN JAN 21 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JANUARY 20 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 15 3:53 PM 45 2017 30 -15 34  
MINIMUM -3 11:11 PM -7 2008 16 -19 30  
AVERAGE 6 23 -17 32  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.49 2012 0.04 -0.04 T  
MONTH TO DATE 1.07 0.84 0.23 1.53  
SINCE DEC 1 3.33 2.51 0.82 3.44  
SINCE JAN 1 1.07 0.84 0.23 1.53  
 
DEGREE DAYS  
HEATING  
YESTERDAY 59 42 17 33  
MONTH TO DATE 893 831 62 588  
SINCE DEC 1 1745 1965 -220 1738  
SINCE JUL 1 2911 3251 -340 2969  
 
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 (300)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 8.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 8:00 AM  
LOWEST 58 4:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 59 2017  
MINIMUM TEMPERATURE (F) 15 -7 2011  
 
SUNRISE AND SUNSET  
JANUARY 21 2024.......SUNRISE 7:15 AM CST SUNSET 4:54 PM CST  
JANUARY 22 2024.......SUNRISE 7:14 AM CST SUNSET 4:55 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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