721  
CDUS43 KLOT 170636  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
136 AM CDT TUE JUN 17 2025  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JUNE 16 2025...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 87 4:33 PM 94 2022 81 6 93  
MINIMUM 59 3:24 AM 47 2023 59 0 68  
AVERAGE 73 70 3 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.42 2009 0.12 -0.12 0.04  
MONTH TO DATE 1.13 2.09 -0.96 2.34  
SINCE JUN 1 1.13 2.09 -0.96 2.34  
SINCE JAN 1 9.19 14.35 -5.16 14.98  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 18 27 -9 11  
SINCE JUN 1 18 27 -9 11  
SINCE JUL 1 5675 6357 -682 5253  
 
COOLING  
YESTERDAY 8 6 2 16  
MONTH TO DATE 53 75 -22 90  
SINCE JUN 1 53 75 -22 90  
SINCE JAN 1 86 131 -45 144    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 5.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 5:00 AM  
LOWEST 39 3:00 PM  
AVERAGE 61  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 94 2024  
MINIMUM TEMPERATURE (F) 60 46 1997  
1999  
 
SUNRISE AND SUNSET  
JUNE 17 2025..........SUNRISE 5:17 AM CDT SUNSET 8:31 PM CDT  
JUNE 18 2025..........SUNRISE 5:17 AM CDT SUNSET 8:31 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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