540  
CDUS43 KLOT 070635  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT THU OCT 07 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 6 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 69 12:51 PM 88 2007 67 2 75  
MINIMUM 63 3:14 AM 30 2001 46 17 43  
AVERAGE 66 56 10 59  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.47 0.10 -0.09 0.00  
MONTH TO DATE 0.75 0.63 0.12 0.17  
SINCE SEP 1 1.68 3.63 -1.95 4.13  
SINCE JAN 1 18.09 27.00 -8.91 25.18  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 9 -9 6  
MONTH TO DATE 0 50 -50 91  
SINCE SEP 1 24 150 -126 196  
SINCE JUL 1 24 161 -137 200  
 
COOLING  
YESTERDAY 1 1 0 0  
MONTH TO DATE 22 6 16 0  
SINCE SEP 1 150 94 56 48  
SINCE JAN 1 1061 818 243 941    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION NE (60)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 8.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 88 2007  
MINIMUM TEMPERATURE (F) 45 27 2001  
 
SUNRISE AND SUNSET  
OCTOBER 7 2021.......SUNRISE 6:57 AM CDT SUNSET 6:24 PM CDT  
OCTOBER 8 2021.......SUNRISE 6:58 AM CDT SUNSET 6:22 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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