264  
CDUS43 KLOT 110716  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
216 AM CDT SAT SEP 11 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 10 2021...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 80 3:29 PM 92 2005 78 2 67  
2013  
MINIMUM 53 5:45 AM 42 1999 56 -3 53  
2017  
AVERAGE 67 67 0 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.41 0.10 -0.10 0.33  
MONTH TO DATE 0.02 1.01 -0.99 2.93  
SINCE SEP 1 0.02 1.01 -0.99 2.93  
SINCE JAN 1 16.43 24.38 -7.95 23.98  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 5  
MONTH TO DATE 0 13 -13 17  
SINCE SEP 1 0 13 -13 17  
SINCE JUL 1 0 24 -24 21  
 
COOLING  
YESTERDAY 2 4 -2 0  
MONTH TO DATE 31 44 -13 34  
SINCE SEP 1 31 44 -13 34  
SINCE JAN 1 942 768 174 927    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION S (190)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 5.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 91 2005  
2019  
MINIMUM TEMPERATURE (F) 56 43 1999  
 
SUNRISE AND SUNSET  
SEPTEMBER 11 2021.....SUNRISE 6:29 AM CDT SUNSET 7:09 PM CDT  
SEPTEMBER 12 2021.....SUNRISE 6:30 AM CDT SUNSET 7:07 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IL Page
The Nexlab IN Page Main Text Page