087  
CDUS43 KLOT 010638  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
138 AM CDT TUE AUG 01 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JULY 31 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 82 5:40 PM 98 2006 84 -2 84  
MINIMUM 62 5:25 AM 50 1997 63 -1 62  
AVERAGE 72 73 -1 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.05 2000 0.12 -0.12 0.00  
MONTH TO DATE 9.62 3.62 6.00 4.16  
SINCE JUN 1 10.79 7.27 3.52 6.11  
SINCE JAN 1 21.32 19.53 1.79 20.79  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 29 33 -4 13  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 7 8 -1 8  
MONTH TO DATE 265 272 -7 284  
SINCE JUN 1 416 447 -31 480  
SINCE JAN 1 467 503 -36 601    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 2.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 2:00 AM  
LOWEST 42 5:00 PM  
AVERAGE 66  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 96 2006  
MINIMUM TEMPERATURE (F) 63 51 1998  
 
SUNRISE AND SUNSET  
AUGUST 1 2023........SUNRISE 5:47 AM CDT SUNSET 8:12 PM CDT  
AUGUST 2 2023........SUNRISE 5:48 AM CDT SUNSET 8:10 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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