180  
CDUS43 KLOT 132134  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT WED SEP 13 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 13 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 70 2:57 PM 94 2005 77 -7 77  
MINIMUM 48 5:53 AM 39 2014 55 -7 55  
AVERAGE 59 66 -7 66  
 
PRECIPITATION (IN)  
TODAY 0.00 6.02 2008 0.09 -0.09 0.00  
MONTH TO DATE 0.75 1.29 -0.54 1.14  
SINCE SEP 1 0.75 1.29 -0.54 1.14  
SINCE JAN 1 23.20 24.66 -1.46 25.87  
 
DEGREE DAYS  
HEATING  
TODAY 6 2 4 0  
MONTH TO DATE 13 19 -6 6  
SINCE SEP 1 13 19 -6 6  
SINCE JUL 1 16 30 -14 6  
 
COOLING  
TODAY 0 3 -3 1  
MONTH TO DATE 67 54 13 69  
SINCE SEP 1 67 54 13 69  
SINCE JAN 1 741 778 -37 892    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 4.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 2:00 AM  
LOWEST 45 2:00 PM  
AVERAGE 71  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 87 2018  
2021  
MINIMUM TEMPERATURE (F) 55 39 2011  
 
SUNRISE AND SUNSET  
SEPTEMBER 13 2023.....SUNRISE 6:31 AM CDT SUNSET 7:06 PM CDT  
SEPTEMBER 14 2023.....SUNRISE 6:32 AM CDT SUNSET 7:05 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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