377  
CDUS43 KLOT 182134  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT WED SEP 18 2024  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 18 2024...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 86 1:39 PM 88 2007 75 11 73  
MINIMUM 53 6:15 AM 41 2012 53 0 47  
AVERAGE 70 64 6 60  
 
PRECIPITATION (IN)  
TODAY 0.00 1.90 2015 0.10 -0.10 0.00  
MONTH TO DATE T 1.79 -1.79 1.70  
SINCE SEP 1 T 1.79 -1.79 1.70  
SINCE JAN 1 24.32 25.16 -0.84 24.15  
 
DEGREE DAYS  
HEATING  
TODAY 0 4 -4 5  
MONTH TO DATE 22 35 -13 35  
SINCE SEP 1 22 35 -13 35  
SINCE JUL 1 31 46 -15 38  
 
COOLING  
TODAY 5 2 3 0  
MONTH TO DATE 68 68 0 67  
SINCE SEP 1 68 68 0 67  
SINCE JAN 1 866 792 74 741    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 3.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1:00 AM  
LOWEST 27 1:00 PM  
AVERAGE 64  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 90 2021  
MINIMUM TEMPERATURE (F) 52 37 2020  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2024.....SUNRISE 6:37 AM CDT SUNSET 6:56 PM CDT  
SEPTEMBER 19 2024.....SUNRISE 6:38 AM CDT SUNSET 6:54 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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