121  
CDUS43 KLOT 150634  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1234 AM CST MON FEB 15 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR FEBRUARY 14 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 1 1:53 PM 56 2006 36 -35 11  
MINIMUM -7 4:10 AM -8 2020 19 -26 -8  
AVERAGE -3 27 -30 2  
 
PRECIPITATION (IN)  
YESTERDAY T 0.19 0.05 -0.05 0.00  
MONTH TO DATE 0.25 0.61 -0.36 0.32  
SINCE DEC 1 2.84 3.64 -0.80 3.98  
SINCE JAN 1 0.99 1.92 -0.93 2.60  
 
DEGREE DAYS  
HEATING  
YESTERDAY 68 38 30 63  
MONTH TO DATE 771 548 223 530  
SINCE DEC 1 3032 3009 23 2655  
SINCE JUL 1 4203 4263 -60 4031  
 
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 13 RESULTANT WIND DIRECTION NW (330)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 12.9  
 
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) 36 55 1999  
MINIMUM TEMPERATURE (F) 19 -3 2015  
 
SUNRISE AND SUNSET  
FEBRUARY 15 2021......SUNRISE 6:48 AM CST SUNSET 5:26 PM CST  
FEBRUARY 16 2021......SUNRISE 6:47 AM CST SUNSET 5:28 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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