242  
CDUS43 KLOT 292134  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT FRI AUG 29 2025  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 29 2025...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 74 2:05 PM 92 2010 80 -6 87  
MINIMUM 51R 5:48 AM 51 1999 60 -9 70  
2001  
AVERAGE 63 70 -7 79  
 
PRECIPITATION (IN)  
TODAY 0.00 1.25 2015 0.12 -0.12 0.00  
MONTH TO DATE 2.86 3.58 -0.72 1.87  
SINCE JUN 1 12.47 10.85 1.62 11.46  
SINCE JAN 1 20.53 23.11 -2.58 24.10  
 
DEGREE DAYS  
HEATING  
TODAY 2 0 2 0  
MONTH TO DATE 10 0 10 6  
SINCE JUN 1 28 37 -9 22  
SINCE JUL 1 10 4 6 9  
 
COOLING  
TODAY 0 6 -6 14  
MONTH TO DATE 241 209 32 225  
SINCE JUN 1 873 656 217 729  
SINCE JAN 1 906 712 194 783    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 4.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 5:00 AM  
LOWEST 51 12:00 PM  
AVERAGE 72  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 93 2013  
MINIMUM TEMPERATURE (F) 60 48 2009  
 
SUNRISE AND SUNSET  
AUGUST 29 2025........SUNRISE 6:16 AM CDT SUNSET 7:31 PM CDT  
AUGUST 30 2025........SUNRISE 6:17 AM CDT SUNSET 7:29 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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