308  
CDUS43 KLOT 200636  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
136 AM CDT TUE APR 20 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR APRIL 19 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 51 7:47 AM 79 2005 62 -11 61  
MINIMUM 39 11:59 PM 30 1999 39 0 33  
2010  
2014  
AVERAGE 45 51 -6 47  
 
PRECIPITATION (IN)  
YESTERDAY T 0.65 0.11 -0.11 0.00  
MONTH TO DATE 0.87 1.91 -1.04 1.04  
SINCE MAR 1 1.76 4.27 -2.51 4.53  
SINCE JAN 1 2.92 7.00 -4.08 7.18  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 15 5 18  
MONTH TO DATE 281 337 -56 372  
SINCE MAR 1 986 1173 -187 1125  
SINCE JUL 1 5785 5928 -143 5715  
 
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 W (280)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 12.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 80 2014  
MINIMUM TEMPERATURE (F) 39 25 2018  
 
SUNRISE AND SUNSET  
APRIL 20 2021.........SUNRISE 6:04 AM CDT SUNSET 7:40 PM CDT  
APRIL 21 2021.........SUNRISE 6:03 AM CDT SUNSET 7:41 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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