985  
CDUS43 KLOT 042144  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
444 PM CDT WED OCT 04 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 4 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 81 12:11 PM 87 2005 68 13 73  
MINIMUM 66 6:15 AM 31 2004 46 20 38  
AVERAGE 74 57 17 56  
 
PRECIPITATION (IN)  
TODAY 0.00 0.98 2001 0.11 -0.11 0.00  
MONTH TO DATE 0.00 0.43 -0.43 0.00  
SINCE SEP 1 2.77 3.43 -0.66 2.35  
SINCE JAN 1 25.22 26.80 -1.58 27.08  
 
DEGREE DAYS  
HEATING  
TODAY 0 8 -8 9  
MONTH TO DATE 0 32 -32 36  
SINCE SEP 1 47 132 -85 134  
SINCE JUL 1 50 143 -93 134  
 
COOLING  
TODAY 9 1 8 0  
MONTH TO DATE 25 4 21 0  
SINCE SEP 1 126 92 34 122  
SINCE JAN 1 800 816 -16 945    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 11.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 5:00 AM  
LOWEST 48 12:00 PM  
AVERAGE 62  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 85 1997  
2007  
MINIMUM TEMPERATURE (F) 46 27 2004  
 
SUNRISE AND SUNSET  
OCTOBER 4 2023.......SUNRISE 6:53 AM CDT SUNSET 6:30 PM CDT  
OCTOBER 5 2023.......SUNRISE 6:54 AM CDT SUNSET 6:28 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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