983  
CDUS43 KLOT 120637  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
137 AM CDT SAT JUL 12 2025  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JULY 11 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 90R 3:35 PM 90 2005 84 6 82  
MINIMUM 70 11:59 PM 50 1997 63 7 63  
AVERAGE 80 74 6 73  
 
PRECIPITATION (IN)  
YESTERDAY 1.02R 0.93 2010 0.12 0.90 T  
MONTH TO DATE 3.85 1.21 2.64 2.19  
SINCE JUN 1 6.50 4.86 1.64 7.22  
SINCE JAN 1 14.56 17.12 -2.56 19.86  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 3  
SINCE JUN 1 18 33 -15 16  
SINCE JUL 1 0 0 0 3  
 
COOLING  
YESTERDAY 15 9 6 8  
MONTH TO DATE 141 95 46 95  
SINCE JUN 1 408 270 138 337  
SINCE JAN 1 441 326 115 391    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 6.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 6:00 AM  
LOWEST 54 3:00 PM  
AVERAGE 74  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 90 2012  
MINIMUM TEMPERATURE (F) 63 54 2002  
 
SUNRISE AND SUNSET  
JULY 12 2025..........SUNRISE 5:29 AM CDT SUNSET 8:28 PM CDT  
JULY 13 2025..........SUNRISE 5:30 AM CDT SUNSET 8:28 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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