942  
CDUS43 KLOT 232138  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
438 PM CDT SAT SEP 23 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 23 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 80 2:21 PM 94 2017 73 7 62  
MINIMUM 63 6:35 AM 36 2012 51 12 44  
AVERAGE 72 62 10 53  
 
PRECIPITATION (IN)  
TODAY 0.00 1.26 2001 0.10 -0.10 T  
MONTH TO DATE 2.44 2.31 0.13 2.24  
SINCE SEP 1 2.44 2.31 0.13 2.24  
SINCE JAN 1 24.89 25.68 -0.79 26.97  
 
DEGREE DAYS  
HEATING  
TODAY 0 5 -5 12  
MONTH TO DATE 40 57 -17 27  
SINCE SEP 1 40 57 -17 27  
SINCE JUL 1 43 68 -25 27  
 
COOLING  
TODAY 7 2 5 0  
MONTH TO DATE 88 78 10 122  
SINCE SEP 1 88 78 10 122  
SINCE JAN 1 762 802 -40 945    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 7.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 5:00 AM  
LOWEST 41 12:00 PM  
AVERAGE 56  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 91 2007  
2017  
MINIMUM TEMPERATURE (F) 50 32 2012  
 
SUNRISE AND SUNSET  
SEPTEMBER 23 2023.....SUNRISE 6:41 AM CDT SUNSET 6:49 PM CDT  
SEPTEMBER 24 2023.....SUNRISE 6:42 AM CDT SUNSET 6:47 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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