779  
CDUS43 KLOT 290640  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
140 AM CDT THU APR 29 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR APRIL 28 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 10:14 AM 80 2004 66 -10 74  
MINIMUM 48 11:59 PM 26 2019 42 6 48  
AVERAGE 52 54 -2 61  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 0.56 0.16 -0.13 0.49  
MONTH TO DATE 0.91 3.02 -2.11 2.12  
SINCE MAR 1 1.80 5.38 -3.58 5.61  
SINCE JAN 1 2.96 8.11 -5.15 8.26  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 12 1 4  
MONTH TO DATE 417 454 -37 512  
SINCE MAR 1 1122 1290 -168 1265  
SINCE JUL 1 5921 6045 -124 5855  
 
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 8 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 8.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 81 2007  
MINIMUM TEMPERATURE (F) 42 27 2018  
 
SUNRISE AND SUNSET  
APRIL 29 2021.........SUNRISE 5:51 AM CDT SUNSET 7:50 PM CDT  
APRIL 30 2021.........SUNRISE 5:50 AM CDT SUNSET 7:51 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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