710  
CDUS43 KLOT 030632  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT SUN SEP 03 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 2 2023...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 88 3:17 PM 95 2008 80 8 84  
MINIMUM 56 5:40 AM 43 2017 59 -3 65  
AVERAGE 72 69 3 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.14 2010 0.10 -0.10 0.00  
MONTH TO DATE 0.00 0.20 -0.20 0.00  
SINCE SEP 1 0.00 0.20 -0.20 0.00  
SINCE JAN 1 22.45 23.57 -1.12 24.73  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 2 -2 0  
SINCE SEP 1 0 2 -2 0  
SINCE JUL 1 3 13 -10 0  
 
COOLING  
YESTERDAY 7 5 2 10  
MONTH TO DATE 10 10 0 19  
SINCE SEP 1 10 10 0 19  
SINCE JAN 1 684 734 -50 842    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 8.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 4:00 AM  
LOWEST 39 4:00 PM  
AVERAGE 66  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 90 1999  
2012  
2015  
MINIMUM TEMPERATURE (F) 58 50 2017  
 
SUNRISE AND SUNSET  
SEPTEMBER 3 2023.....SUNRISE 6:21 AM CDT SUNSET 7:23 PM CDT  
SEPTEMBER 4 2023.....SUNRISE 6:22 AM CDT SUNSET 7:22 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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