025  
CDUS43 KLOT 180637  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
136 AM CDT FRI SEP 18 2020  
 
   
...............................
 
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 17 2020...  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1997 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 69 1226 PM 92 2018 75 -6 83  
MINIMUM 49 1130 PM 40 1999 52 -3 64  
AVERAGE 59 64 -5 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.44 0.09 -0.09 0.00  
MONTH TO DATE 3.48 1.84 1.64 2.31  
SINCE SEP 1 3.48 1.84 1.64 2.31  
SINCE JAN 1 24.53 27.47 -2.94 29.56  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 3 3 0  
MONTH TO DATE 28 30 -2 2  
SINCE SEP 1 28 30 -2 2  
SINCE JUL 1 32 39 -7 3  
 
COOLING  
YESTERDAY 0 2 -2 9  
MONTH TO DATE 41 61 -20 101  
SINCE SEP 1 41 61 -20 101  
SINCE JAN 1 934 785 149 920    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION NE (30)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 9.5  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
   
......................................................
 
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 88 2007  
MINIMUM TEMPERATURE (F) 52 41 2012  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2020.....SUNRISE 637 AM CDT SUNSET 656 PM CDT  
SEPTEMBER 19 2020.....SUNRISE 638 AM CDT SUNSET 655 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