842  
CDUS43 KLOT 060639  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
139 AM CDT MON SEP 06 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 5 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 83 3:34 PM 92 1999 79 4 81  
MINIMUM 54 4:38 AM 42 1997 58 -4 58  
AVERAGE 69 68 1 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.08 0.10 -0.10 0.00  
MONTH TO DATE 0.02 0.50 -0.48 0.25  
SINCE SEP 1 0.02 0.50 -0.48 0.25  
SINCE JAN 1 16.43 23.87 -7.44 21.30  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 5 -5 1  
SINCE SEP 1 0 5 -5 1  
SINCE JUL 1 0 16 -16 5  
 
COOLING  
YESTERDAY 4 4 0 5  
MONTH TO DATE 12 24 -12 25  
SINCE SEP 1 12 24 -12 25  
SINCE JAN 1 923 748 175 918    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 7.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 92 2016  
MINIMUM TEMPERATURE (F) 57 41 2000  
 
SUNRISE AND SUNSET  
SEPTEMBER 6 2021.....SUNRISE 6:24 AM CDT SUNSET 7:18 PM CDT  
SEPTEMBER 7 2021.....SUNRISE 6:25 AM CDT SUNSET 7:16 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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