397  
CDUS43 KLOT 130641  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1241 AM CST SAT FEB 13 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR FEBRUARY 12 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 13 11:27 AM 53 2005 35 -22 35  
MINIMUM 6 11:59 PM -12 2014 19 -13 19  
AVERAGE 10 27 -17 27  
 
PRECIPITATION (IN)  
YESTERDAY T 0.23 0.06 -0.06 0.15  
MONTH TO DATE 0.25 0.51 -0.26 0.29  
SINCE DEC 1 2.84 3.54 -0.70 3.95  
SINCE JAN 1 0.99 1.82 -0.83 2.57  
 
DEGREE DAYS  
HEATING  
YESTERDAY 55 38 17 38  
MONTH TO DATE 640 472 168 418  
SINCE DEC 1 2901 2933 -32 2543  
SINCE JUL 1 4072 4187 -115 3919  
 
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 (340)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 11.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 45 2001  
MINIMUM TEMPERATURE (F) 19 -2 2015  
 
SUNRISE AND SUNSET  
FEBRUARY 13 2021......SUNRISE 6:51 AM CST SUNSET 5:24 PM CST  
FEBRUARY 14 2021......SUNRISE 6:50 AM CST SUNSET 5:25 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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