824  
CDUS43 KLOT 202133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT WED SEP 20 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 2023...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 79 2:59 PM 93 2018 74 5 93  
2022  
MINIMUM 60 1:05 AM 40 2003 52 8 59  
2020  
AVERAGE 70 63 7 76  
 
PRECIPITATION (IN)  
TODAY 0.25 0.77 2001 0.11 0.14 0.43  
MONTH TO DATE 2.11 2.00 0.11 2.24  
SINCE SEP 1 2.11 2.00 0.11 2.24  
SINCE JAN 1 24.56 25.37 -0.81 26.97  
 
DEGREE DAYS  
HEATING  
TODAY 0 4 -4 0  
MONTH TO DATE 40 43 -3 6  
SINCE SEP 1 40 43 -3 6  
SINCE JUL 1 43 54 -11 6  
 
COOLING  
TODAY 5 2 3 11  
MONTH TO DATE 72 72 0 115  
SINCE SEP 1 72 72 0 115  
SINCE JAN 1 746 796 -50 938    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 7.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 7:00 AM  
LOWEST 52 3:00 PM  
AVERAGE 73  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 92 2017  
MINIMUM TEMPERATURE (F) 52 40 2006  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2023.....SUNRISE 6:38 AM CDT SUNSET 6:54 PM CDT  
SEPTEMBER 21 2023.....SUNRISE 6:39 AM CDT SUNSET 6:52 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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