728  
CDUS43 KLOT 210634  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT WED APR 21 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR APRIL 20 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 43 4:19 PM 80 2014 63 -20 64  
MINIMUM 32 11:38 PM 25 2018 39 -7 29  
AVERAGE 38 51 -13 47  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.49 0.11 -0.10 0.05  
MONTH TO DATE 0.88 2.02 -1.14 1.09  
SINCE MAR 1 1.77 4.38 -2.61 4.58  
SINCE JAN 1 2.93 7.11 -4.18 7.23  
 
DEGREE DAYS  
HEATING  
YESTERDAY 27 14 13 18  
MONTH TO DATE 308 351 -43 390  
SINCE MAR 1 1013 1187 -174 1143  
SINCE JUL 1 5812 5942 -130 5733  
 
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 2 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 5.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 81 2001  
MINIMUM TEMPERATURE (F) 40 29 2011  
 
SUNRISE AND SUNSET  
APRIL 21 2021.........SUNRISE 6:03 AM CDT SUNSET 7:41 PM CDT  
APRIL 22 2021.........SUNRISE 6:01 AM CDT SUNSET 7:42 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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