385  
CDUS43 KLOT 160633  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
133 AM CDT FRI APR 16 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR APRIL 15 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 56 2:25 PM 87 2002 61 -5 39  
MINIMUM 35 12:36 AM 23 2014 38 -3 26  
AVERAGE 46 49 -3 33  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.63 0.10 -0.10 0.07  
MONTH TO DATE 0.87 1.45 -0.58 0.74  
SINCE MAR 1 1.76 3.81 -2.05 4.23  
SINCE JAN 1 2.92 6.54 -3.62 6.88  
 
DEGREE DAYS  
HEATING  
YESTERDAY 19 16 3 32  
MONTH TO DATE 206 276 -70 274  
SINCE MAR 1 911 1112 -201 1027  
SINCE JUL 1 5710 5867 -157 5617  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 4 0 4 1  
SINCE MAR 1 4 0 4 1  
SINCE JAN 1 4 0 4 1    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION NW (320)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 10.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 86 2002  
MINIMUM TEMPERATURE (F) 38 22 2020  
 
SUNRISE AND SUNSET  
APRIL 16 2021.........SUNRISE 6:11 AM CDT SUNSET 7:35 PM CDT  
APRIL 17 2021.........SUNRISE 6:09 AM CDT SUNSET 7:37 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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