865  
CDUS43 KLOT 212147  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
447 PM CDT WED APR 21 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR APRIL 21 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 49 2:53 PM 81 2001 63 -14  
MINIMUM 32 5:26 AM 29 2011 40 -8  
AVERAGE 41 51 -10  
 
PRECIPITATION (IN)  
TODAY 0.00 0.35 2002 0.10 -0.10  
MONTH TO DATE 0.88 2.12 -1.24  
SINCE MAR 1 1.77 4.48 -2.71  
SINCE JAN 1 2.93 7.21 -4.28  
 
DEGREE DAYS  
HEATING  
TODAY 24 14 10  
MONTH TO DATE 332 365 -33  
SINCE MAR 1 1037 1201 -164  
SINCE JUL 1 5836 5956 -120  
 
COOLING  
TODAY 0 0 0  
MONTH TO DATE 4 0 4  
SINCE MAR 1 4 0 4  
SINCE JAN 1 4 0 4    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 9.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 81 2007  
MINIMUM TEMPERATURE (F) 40 28 2003  
 
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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