381  
CDUS43 KLOT 120636  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1236 AM CST FRI FEB 12 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR FEBRUARY 11 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 3:25 PM 69 1999 35 -15 32  
MINIMUM -1 7:15 AM -14 2014 18 -19 20  
AVERAGE 10 27 -17 26  
 
PRECIPITATION (IN)  
YESTERDAY T 0.55 0.04 -0.04 0.00  
MONTH TO DATE 0.25 0.45 -0.20 0.14  
SINCE DEC 1 2.84 3.48 -0.64 3.80  
SINCE JAN 1 0.99 1.76 -0.77 2.42  
 
DEGREE DAYS  
HEATING  
YESTERDAY 55 38 17 39  
MONTH TO DATE 585 434 151 380  
SINCE DEC 1 2846 2895 -49 2505  
SINCE JUL 1 4017 4149 -132 3881  
 
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 11 RESULTANT WIND DIRECTION N (0)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 11.5  
 
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) 35 53 2005  
MINIMUM TEMPERATURE (F) 19 -12 2014  
 
SUNRISE AND SUNSET  
FEBRUARY 12 2021......SUNRISE 6:52 AM CST SUNSET 5:23 PM CST  
FEBRUARY 13 2021......SUNRISE 6:51 AM CST SUNSET 5:24 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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