086  
CDUS43 KLOT 020632  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT SAT AUG 02 2025  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 1 2025...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 1:25 PM 96 2006 83 -6 86  
MINIMUM 56 10:36 PM 51 1998 63 -7 69  
AVERAGE 67 73 -6 78  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.20 2000 0.14 -0.14 0.08  
MONTH TO DATE 0.00 0.14 -0.14 0.08  
SINCE JUN 1 9.61 7.41 2.20 9.67  
SINCE JAN 1 17.67 19.67 -2.00 22.31  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 18 37 -19 16  
SINCE JUL 1 0 4 -4 3  
 
COOLING  
YESTERDAY 2 8 -6 13  
MONTH TO DATE 2 8 -6 13  
SINCE JUN 1 634 455 179 517  
SINCE JAN 1 667 511 156 571    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 7.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 6:00 AM  
LOWEST 42 3:00 PM  
AVERAGE 64  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 97 2006  
MINIMUM TEMPERATURE (F) 63 54 2009  
2021  
 
SUNRISE AND SUNSET  
AUGUST 2 2025........SUNRISE 5:48 AM CDT SUNSET 8:10 PM CDT  
AUGUST 3 2025........SUNRISE 5:49 AM CDT SUNSET 8:09 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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