177  
CDUS43 KLOT 112133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT FRI AUG 11 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 11 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 83 2:59 PM 92 2016 83 0 79  
MINIMUM 65 5:23 AM 50 2004 63 2 57  
AVERAGE 74 73 1 68  
 
PRECIPITATION (IN)  
TODAY 0.04 1.41 2014 0.12 -0.08 0.00  
MONTH TO DATE 0.17 1.39 -1.22 1.40  
SINCE JUN 1 10.96 8.66 2.30 7.51  
SINCE JAN 1 21.49 20.92 0.57 22.19  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 29 37 -8 13  
SINCE JUL 1 0 4 -4 0  
 
COOLING  
TODAY 9 8 1 3  
MONTH TO DATE 77 88 -11 109  
SINCE JUN 1 493 535 -42 589  
SINCE JAN 1 544 591 -47 710    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 9.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 6:00 AM  
LOWEST 58 12:00 PM  
AVERAGE 78  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 94 2010  
MINIMUM TEMPERATURE (F) 63 48 2004  
 
SUNRISE AND SUNSET  
AUGUST 11 2023........SUNRISE 5:57 AM CDT SUNSET 7:59 PM CDT  
AUGUST 12 2023........SUNRISE 5:58 AM CDT SUNSET 7:58 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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