879  
CDUS43 KLOT 200637  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1237 AM CST SAT FEB 20 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR FEBRUARY 19 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 17 5:09 PM 67 2017 38 -21 27  
MINIMUM -3 7:21 AM -8 2015 20 -23 14  
AVERAGE 7 29 -22 21  
 
PRECIPITATION (IN)  
YESTERDAY T 0.61 0.06 -0.06 0.00  
MONTH TO DATE 0.25 0.88 -0.63 0.37  
SINCE DEC 1 2.84 3.91 -1.07 4.03  
SINCE JAN 1 0.99 2.19 -1.20 2.65  
 
DEGREE DAYS  
HEATING  
YESTERDAY 58 36 22 44  
MONTH TO DATE 1049 731 318 728  
SINCE DEC 1 3310 3192 118 2853  
SINCE JUL 1 4481 4446 35 4229  
 
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 W (260)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 7.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 38 69 2017  
MINIMUM TEMPERATURE (F) 21 -9 2015  
 
SUNRISE AND SUNSET  
FEBRUARY 20 2021......SUNRISE 6:41 AM CST SUNSET 5:33 PM CST  
FEBRUARY 21 2021......SUNRISE 6:40 AM CST SUNSET 5:34 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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