029  
CDUS43 KLOT 170633  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1233 AM CST WED FEB 17 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR FEBRUARY 16 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 20 3:06 PM 47 2011 37 -17 39  
2012  
MINIMUM -2 11:33 PM -6 2007 20 -22 11  
AVERAGE 9 28 -19 25  
 
PRECIPITATION (IN)  
YESTERDAY MM 0.77 0.05 MM 0.00  
MONTH TO DATE 0.25 0.71 -0.46 0.32  
SINCE DEC 1 2.84 3.74 -0.90 3.98  
SINCE JAN 1 0.99 2.02 -1.03 2.60  
 
DEGREE DAYS  
HEATING  
YESTERDAY 56 37 19 40  
MONTH TO DATE 888 622 266 618  
SINCE DEC 1 3149 3083 66 2743  
SINCE JUL 1 4320 4337 -17 4119  
 
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 9 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 9.2  
 
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) 37 66 2017  
MINIMUM TEMPERATURE (F) 20 1 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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