290  
CDUS43 KLOT 142135  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
435 PM CDT TUE SEP 14 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 14 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 87R 2:03 PM 87 2018 76 11  
MINIMUM 71 5:59 AM 39 2011 55 16  
AVERAGE 79 65 14  
 
PRECIPITATION (IN)  
TODAY 0.00 1.21 2008 0.10 -0.10  
MONTH TO DATE 0.02 1.39 -1.37  
SINCE SEP 1 0.02 1.39 -1.37  
SINCE JAN 1 16.43 24.76 -8.33  
 
DEGREE DAYS  
HEATING  
TODAY 0 3 -3  
MONTH TO DATE 0 22 -22  
SINCE SEP 1 0 22 -22  
SINCE JUL 1 0 33 -33  
 
COOLING  
TODAY 14 3 11  
MONTH TO DATE 78 57 21  
SINCE SEP 1 78 57 21  
SINCE JAN 1 989 781 208    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 14.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 86 2009  
2017  
MINIMUM TEMPERATURE (F) 54 36 2007  
 
SUNRISE AND SUNSET  
SEPTEMBER 14 2021.....SUNRISE 6:32 AM CDT SUNSET 7:04 PM CDT  
SEPTEMBER 15 2021.....SUNRISE 6:33 AM CDT SUNSET 7:02 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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