146  
CDUS43 KLOT 220635  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT THU AUG 22 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 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 76 3:21 PM 94 2003 82 -6 83  
MINIMUM 51 4:55 AM 49 2004 61 -10 63  
AVERAGE 64 72 -8 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.38 2014 0.12 -0.12 0.00  
MONTH TO DATE 1.56 2.63 -1.07 1.13  
SINCE JUN 1 11.15 9.90 1.25 11.92  
SINCE JAN 1 23.79 22.16 1.63 22.45  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 0 1 0  
MONTH TO DATE 4 0 4 0  
SINCE JUN 1 20 37 -17 29  
SINCE JUL 1 7 4 3 0  
 
COOLING  
YESTERDAY 0 7 -7 8  
MONTH TO DATE 135 161 -26 133  
SINCE JUN 1 639 608 31 549  
SINCE JAN 1 693 664 29 600    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 3.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 5:00 AM  
LOWEST 40 4:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 90 2007  
MINIMUM TEMPERATURE (F) 61 48 2004  
 
SUNRISE AND SUNSET  
AUGUST 22 2024........SUNRISE 6:09 AM CDT SUNSET 7:42 PM CDT  
AUGUST 23 2024........SUNRISE 6:10 AM CDT SUNSET 7:40 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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