491  
CDUS43 KLOT 230633  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
133 AM CDT MON AUG 23 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 22 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 85 4:24 PM 90 2007 82 3 86  
MINIMUM 65 11:51 PM 48 2004 61 4 60  
AVERAGE 75 71 4 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.70 0.11 -0.11 0.00  
MONTH TO DATE 1.90 2.74 -0.84 0.96  
SINCE JUN 1 11.10 10.01 1.09 3.15  
SINCE JAN 1 16.25 22.27 -6.02 21.05  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 4  
SINCE JUN 1 11 37 -26 20  
SINCE JUL 1 0 4 -4 4  
 
COOLING  
YESTERDAY 10 6 4 8  
MONTH TO DATE 200 167 33 149  
SINCE JUN 1 711 614 97 732  
SINCE JAN 1 792 670 122 783    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (20)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 5.2  
 
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) 81 92 2012  
MINIMUM TEMPERATURE (F) 61 51 1997  
2005  
 
SUNRISE AND SUNSET  
AUGUST 23 2021........SUNRISE 6:10 AM CDT SUNSET 7:41 PM CDT  
AUGUST 24 2021........SUNRISE 6:11 AM CDT SUNSET 7:39 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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