447  
CDUS43 KLOT 212139  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
439 PM CDT WED JUL 21 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR JULY 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 76 2:59 PM 97 2011 84 -8  
MINIMUM 64 4:14 AM 52 2007 64 0  
AVERAGE 70 74 -4  
 
PRECIPITATION (IN)  
TODAY 0.00 1.83 2001 0.12 -0.12  
MONTH TO DATE 1.89 2.40 -0.51  
SINCE JUN 1 8.60 6.05 2.55  
SINCE JAN 1 13.75 18.31 -4.56  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0  
MONTH TO DATE 0 0 0  
SINCE JUN 1 11 33 -22  
SINCE JUL 1 0 0 0  
 
COOLING  
TODAY 5 9 -4  
MONTH TO DATE 149 185 -36  
SINCE JUN 1 399 360 39  
SINCE JAN 1 480 416 64    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION NE (50)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 7.4  
 
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) 84 94 2001  
MINIMUM TEMPERATURE (F) 64 53 2000  
2007  
 
SUNRISE AND SUNSET  
JULY 21 2021..........SUNRISE 5:36 AM CDT SUNSET 8:22 PM CDT  
JULY 22 2021..........SUNRISE 5:37 AM CDT SUNSET 8:21 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