672  
CDUS43 KLOT 070634  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT THU SEP 07 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 6 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 81 12:41 PM 92 2016 79 2 82  
MINIMUM 69 11:59 PM 41 2000 57 12 63  
AVERAGE 75 68 7 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 1.33 2020 0.10 -0.09 0.00  
MONTH TO DATE 0.01 0.60 -0.59 0.10  
SINCE SEP 1 0.01 0.60 -0.59 0.10  
SINCE JAN 1 22.46 23.97 -1.51 24.83  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 6 -6 0  
SINCE SEP 1 0 6 -6 0  
SINCE JUL 1 3 17 -14 0  
 
COOLING  
YESTERDAY 10 4 6 8  
MONTH TO DATE 63 28 35 48  
SINCE SEP 1 63 28 35 48  
SINCE JAN 1 737 752 -15 871    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 12.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 3:00 AM  
LOWEST 54 12:00 PM  
AVERAGE 72  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 90 2016  
2021  
MINIMUM TEMPERATURE (F) 57 46 2011  
 
SUNRISE AND SUNSET  
SEPTEMBER 7 2023.....SUNRISE 6:25 AM CDT SUNSET 7:17 PM CDT  
SEPTEMBER 8 2023.....SUNRISE 6:26 AM CDT SUNSET 7:15 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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