787  
CDUS43 KLOT 172234  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CST WED FEB 17 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR FEBRUARY 17 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 20 3:48 PM 66 2017 37 -17  
MINIMUM -5R 7:04 AM 1 2006 20 -25  
AVERAGE 8 28 -20  
 
PRECIPITATION (IN)  
TODAY 0.00 0.82 2008 0.06 -0.06  
MONTH TO DATE 0.25 0.77 -0.52  
SINCE DEC 1 2.84 3.80 -0.96  
SINCE JAN 1 0.99 2.08 -1.09  
 
DEGREE DAYS  
HEATING  
TODAY 57 37 20  
MONTH TO DATE 945 659 286  
SINCE DEC 1 3206 3120 86  
SINCE JUL 1 4377 4374 3  
 
COOLING  
TODAY 0 0 0  
MONTH TO DATE 0 0 0  
SINCE DEC 1 0 0 0  
SINCE JAN 1 0 0 0    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION S (190)  
HIGHEST WIND SPEED 6 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 8 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 2.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 37 69 2017  
MINIMUM TEMPERATURE (F) 20 -8 2006  
 
SUNRISE AND SUNSET  
FEBRUARY 17 2021......SUNRISE 6:46 AM CST SUNSET 5:29 PM CST  
FEBRUARY 18 2021......SUNRISE 6:44 AM CST SUNSET 5:30 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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