316  
CDUS43 KLOT 210656  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
156 AM CDT SUN JUL 21 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JULY 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 80 1:26 PM 97 2011 84 -4 84  
MINIMUM 60 5:19 AM 54 2009 64 -4 65  
AVERAGE 70 74 -4 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.21 2005 0.13 -0.13 T  
MONTH TO DATE 4.11 2.28 1.83 5.27  
SINCE JUN 1 9.14 5.93 3.21 6.44  
SINCE JAN 1 21.78 18.19 3.59 16.97  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 3 0 3 0  
SINCE JUN 1 16 33 -17 29  
SINCE JUL 1 3 0 3 0  
 
COOLING  
YESTERDAY 5 9 -4 10  
MONTH TO DATE 169 176 -7 154  
SINCE JUN 1 411 351 60 305  
SINCE JAN 1 465 407 58 356    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 2.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 5:00 AM  
LOWEST 44 1:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 97 2011  
MINIMUM TEMPERATURE (F) 64 52 2007  
 
SUNRISE AND SUNSET  
JULY 21 2024..........SUNRISE 5:37 AM CDT SUNSET 8:22 PM CDT  
JULY 22 2024..........SUNRISE 5:38 AM CDT SUNSET 8:21 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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