330  
CDUS43 KLOT 212133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT SUN JUL 21 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JULY 21 2024...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 82 1:58 PM 97 2011 84 -2 81  
MINIMUM 63 5:25 AM 52 2007 64 -1 60  
AVERAGE 73 74 -1 71  
 
PRECIPITATION (IN)  
TODAY 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  
TODAY 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  
TODAY 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 9 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 1.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 3:00 AM  
LOWEST 47 2:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 94 2001  
MINIMUM TEMPERATURE (F) 64 53 2000  
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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