272  
CDUS43 KLOT 100637  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1237 AM CST WED FEB 10 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR FEBRUARY 9 2021...  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
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 16 2:22 PM 69 1999 34 -18 35  
MINIMUM -6 5:09 AM -7 2011 18 -24 20  
AVERAGE 5 26 -21 28  
 
PRECIPITATION (IN)  
YESTERDAY T 0.48 0.05 -0.05 0.08  
MONTH TO DATE 0.25 0.36 -0.11 0.14  
SINCE DEC 1 2.84 3.39 -0.55 3.80  
SINCE JAN 1 0.99 1.67 -0.68 2.42  
 
DEGREE DAYS  
HEATING  
YESTERDAY 60 39 21 37  
MONTH TO DATE 472 357 115 306  
SINCE DEC 1 2733 2818 -85 2431  
SINCE JUL 1 3904 4072 -168 3807  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION N (350)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 6.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 35 62 2009  
MINIMUM TEMPERATURE (F) 18 -20 2011  
 
SUNRISE AND SUNSET  
FEBRUARY 10 2021......SUNRISE 6:55 AM CST SUNSET 5:20 PM CST  
FEBRUARY 11 2021......SUNRISE 6:54 AM CST SUNSET 5:21 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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