460  
CDUS43 KLOT 190649  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
149 AM CDT THU OCT 19 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 18 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 66 2:41 PM 78 2007 62 4 49  
MINIMUM 39 2:54 AM 27 2015 41 -2 34  
AVERAGE 53 51 2 42  
 
PRECIPITATION (IN)  
YESTERDAY 0.08 0.28 2007 0.09 -0.01 T  
MONTH TO DATE 2.10 1.85 0.25 0.91  
SINCE SEP 1 4.87 4.85 0.02 3.26  
SINCE JAN 1 27.32 28.22 -0.90 27.99  
 
DEGREE DAYS  
HEATING  
YESTERDAY 12 14 -2 23  
MONTH TO DATE 158 191 -33 253  
SINCE SEP 1 205 291 -86 351  
SINCE JUL 1 208 302 -94 351  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 25 9 16 0  
SINCE SEP 1 126 97 29 122  
SINCE JAN 1 800 821 -21 945    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 10.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 2:00 AM  
LOWEST 50 2:00 PM  
AVERAGE 75  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 75 2000  
MINIMUM TEMPERATURE (F) 41 28 1997  
 
SUNRISE AND SUNSET  
OCTOBER 19 2023.......SUNRISE 7:10 AM CDT SUNSET 6:06 PM CDT  
OCTOBER 20 2023.......SUNRISE 7:11 AM CDT SUNSET 6:04 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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