493  
CDUS43 KLOT 220631  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
131 AM CDT MON JUL 22 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JULY 21 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 82 3:51 PM 97 2011 84 -2 81  
MINIMUM 63 5:25 AM 52 2007 64 -1 60  
AVERAGE 73 74 -1 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.83 2001 0.12 -0.12 0.00  
MONTH TO DATE 4.11 2.40 1.71 5.27  
SINCE JUN 1 9.14 6.05 3.09 6.44  
SINCE JAN 1 21.78 18.31 3.47 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 8 9 -1 6  
MONTH TO DATE 177 185 -8 160  
SINCE JUN 1 419 360 59 311  
SINCE JAN 1 473 416 57 362    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 2.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 10:00 PM  
LOWEST 47 2:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 94 2001  
MINIMUM TEMPERATURE (F) 64 53 2000  
2007  
 
SUNRISE AND SUNSET  
JULY 22 2024..........SUNRISE 5:38 AM CDT SUNSET 8:21 PM CDT  
JULY 23 2024..........SUNRISE 5:39 AM CDT SUNSET 8:20 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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