781  
CDUS43 KLOT 312134  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT WED JUL 31 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JULY 31 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 90 2:32 PM 98 2006 84 6 82  
MINIMUM 66 2:56 AM 50 1997 63 3 62  
AVERAGE 78 73 5 72  
 
PRECIPITATION (IN)  
TODAY 0.14 1.05 2000 0.12 0.02 0.00  
MONTH TO DATE 4.56 3.62 0.94 9.62  
SINCE JUN 1 9.59 7.27 2.32 10.79  
SINCE JAN 1 22.23 19.53 2.70 21.32  
 
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 13 8 5 7  
MONTH TO DATE 262 272 -10 265  
SINCE JUN 1 504 447 57 416  
SINCE JAN 1 558 503 55 467    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 4.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 3:00 AM  
LOWEST 48 2:00 PM  
AVERAGE 73  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 96 2006  
MINIMUM TEMPERATURE (F) 63 51 1998  
 
SUNRISE AND SUNSET  
JULY 31 2024..........SUNRISE 5:46 AM CDT SUNSET 8:12 PM CDT  
AUGUST 1 2024........SUNRISE 5:47 AM CDT SUNSET 8:11 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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