721  
CDUS43 KLOT 170634  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT SAT APR 17 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR APRIL 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 60 4:20 PM 86 2002 61 -1 46  
MINIMUM 32 11:51 PM 22 2020 38 -6 22  
AVERAGE 46 50 -4 34  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.28 0.11 -0.11 0.00  
MONTH TO DATE 0.87 1.56 -0.69 0.74  
SINCE MAR 1 1.76 3.92 -2.16 4.23  
SINCE JAN 1 2.92 6.65 -3.73 6.88  
 
DEGREE DAYS  
HEATING  
YESTERDAY 19 16 3 31  
MONTH TO DATE 225 292 -67 305  
SINCE MAR 1 930 1128 -198 1058  
SINCE JUL 1 5729 5883 -154 5648  
 
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 4 RESULTANT WIND DIRECTION N (20)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 6.2  
 
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) 62 84 2002  
MINIMUM TEMPERATURE (F) 38 26 2018  
 
SUNRISE AND SUNSET  
APRIL 17 2021.........SUNRISE 6:09 AM CDT SUNSET 7:37 PM CDT  
APRIL 18 2021.........SUNRISE 6:08 AM CDT SUNSET 7:38 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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