257  
CDUS43 KLOT 300643  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
143 AM CDT FRI APR 30 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR APRIL 29 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 72 5:37 PM 81 2007 66 6 60  
MINIMUM 47 11:52 PM 27 2018 42 5 43  
AVERAGE 60 54 6 52  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 1.89 0.16 -0.15 1.89  
MONTH TO DATE 0.92 3.18 -2.26 4.01  
SINCE MAR 1 1.81 5.54 -3.73 7.50  
SINCE JAN 1 2.97 8.27 -5.30 10.15  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 11 -6 13  
MONTH TO DATE 422 465 -43 525  
SINCE MAR 1 1127 1301 -174 1278  
SINCE JUL 1 5926 6056 -130 5868  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 10 0 10 1  
SINCE MAR 1 10 0 10 1  
SINCE JAN 1 10 0 10 1    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION NW (330)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 10.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 84 2013  
MINIMUM TEMPERATURE (F) 42 31 2008  
 
SUNRISE AND SUNSET  
APRIL 30 2021.........SUNRISE 5:50 AM CDT SUNSET 7:51 PM CDT  
MAY 1 2021...........SUNRISE 5:49 AM CDT SUNSET 7:52 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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