630  
CDUS43 KLOT 280635  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT WED JUL 28 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR JULY 27 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 87 2:09 PM 91 1997 84 3 83  
2011  
MINIMUM 65 5:06 AM 53 2013 64 1 66  
AVERAGE 76 74 2 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.70 0.12 -0.12 T  
MONTH TO DATE 1.95 3.14 -1.19 1.64  
SINCE JUN 1 8.66 6.79 1.87 2.14  
SINCE JAN 1 13.81 19.05 -5.24 20.04  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 11 33 -22 16  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 11 9 2 10  
MONTH TO DATE 227 239 -12 310  
SINCE JUN 1 477 414 63 545  
SINCE JAN 1 558 470 88 596    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 5.1  
 
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) 84 91 2006  
MINIMUM TEMPERATURE (F) 63 53 2013  
 
SUNRISE AND SUNSET  
JULY 28 2021..........SUNRISE 5:43 AM CDT SUNSET 8:15 PM CDT  
JULY 29 2021..........SUNRISE 5:44 AM CDT SUNSET 8:14 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