823  
CDUS43 KLOT 180633  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1233 AM CST THU JAN 18 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JANUARY 17 2024...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 19 11:59 PM 48 2023 30 -11 48  
MINIMUM -1 4:02 AM -4 2018 16 -17 36  
AVERAGE 9 23 -14 42  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.34 2017 0.04 -0.04 0.00  
MONTH TO DATE 1.07 0.72 0.35 1.26  
SINCE DEC 1 3.33 2.39 0.94 3.17  
SINCE JAN 1 1.07 0.72 0.35 1.26  
 
DEGREE DAYS  
HEATING  
YESTERDAY 56 42 14 23  
MONTH TO DATE 729 705 24 501  
SINCE DEC 1 1581 1839 -258 1651  
SINCE JUL 1 2747 3125 -378 2882  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 13.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 71 11:00 PM  
LOWEST 61 12:00 PM  
AVERAGE 66  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 42 2013  
2022  
MINIMUM TEMPERATURE (F) 16 -5 2016  
 
SUNRISE AND SUNSET  
JANUARY 18 2024.......SUNRISE 7:17 AM CST SUNSET 4:50 PM CST  
JANUARY 19 2024.......SUNRISE 7:16 AM CST SUNSET 4:51 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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