820  
CDUS43 KLOT 172134  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT THU APR 17 2025  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR APRIL 17 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 63 12:35 PM 84 2002 60 3 67  
MINIMUM 40 12:24 AM 25 2022 38 2 49  
AVERAGE 52 49 3 58  
 
PRECIPITATION (IN)  
TODAY 0.05 1.59 2013 0.13 -0.08 0.00  
MONTH TO DATE 0.98 1.68 -0.70 1.14  
SINCE MAR 1 3.88 3.65 0.23 5.07  
SINCE JAN 1 5.45 6.16 -0.71 7.52  
 
DEGREE DAYS  
HEATING  
TODAY 13 16 -3 7  
MONTH TO DATE 337 317 20 242  
SINCE MAR 1 999 1167 -168 922  
SINCE JUL 1 5319 5944 -625 4983  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 1  
SINCE MAR 1 0 2 -2 1  
SINCE JAN 1 0 2 -2 1    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 12.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 3:00 PM  
LOWEST 36 11:00 AM  
AVERAGE 60  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 88 2002  
MINIMUM TEMPERATURE (F) 39 26 2018  
 
SUNRISE AND SUNSET  
APRIL 17 2025.........SUNRISE 6:09 AM CDT SUNSET 7:37 PM CDT  
APRIL 18 2025.........SUNRISE 6:08 AM CDT SUNSET 7:38 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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