666  
CDUS43 KLOT 212135  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
435 PM CDT SAT AUG 21 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 21 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 85 12:43 PM 94 2003 82 3  
MINIMUM 70 4:40 AM 49 2004 61 9  
AVERAGE 78 72 6  
 
PRECIPITATION (IN)  
TODAY 0.06 1.38 2014 0.12 -0.06  
MONTH TO DATE 1.90 2.63 -0.73  
SINCE JUN 1 11.10 9.90 1.20  
SINCE JAN 1 16.25 22.16 -5.91  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0  
MONTH TO DATE 0 0 0  
SINCE JUN 1 11 37 -26  
SINCE JUL 1 0 4 -4  
 
COOLING  
TODAY 13 7 6  
MONTH TO DATE 190 161 29  
SINCE JUN 1 701 608 93  
SINCE JAN 1 782 664 118    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 7.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 90 2007  
MINIMUM TEMPERATURE (F) 61 48 2004  
 
SUNRISE AND SUNSET  
AUGUST 21 2021........SUNRISE 6:08 AM CDT SUNSET 7:44 PM CDT  
AUGUST 22 2021........SUNRISE 6:09 AM CDT SUNSET 7:42 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