465  
CDUS43 KLOT 172133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT THU AUG 17 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 17 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 79 12:03 PM 87 2015 82 -3 83  
MINIMUM 64 7:15 AM 51 2013 62 2 56  
AVERAGE 72 72 0 70  
 
PRECIPITATION (IN)  
TODAY 0.21 0.84 2000 0.13 0.08 0.00  
MONTH TO DATE 1.13 2.16 -1.03 1.41  
SINCE JUN 1 11.92 9.43 2.49 7.52  
SINCE JAN 1 22.45 21.69 0.76 22.20  
 
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 7 7 0 5  
MONTH TO DATE 106 133 -27 134  
SINCE JUN 1 522 580 -58 614  
SINCE JAN 1 573 636 -63 735    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 14.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 7:00 AM  
LOWEST 43 12:00 PM  
AVERAGE 70  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 86 2006  
2016  
MINIMUM TEMPERATURE (F) 62 48 2012  
 
SUNRISE AND SUNSET  
AUGUST 17 2023........SUNRISE 6:03 AM CDT SUNSET 7:51 PM CDT  
AUGUST 18 2023........SUNRISE 6:04 AM CDT SUNSET 7:49 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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