109  
CDUS43 KLOT 182134  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT TUE MAY 18 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR MAY 18 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 73 11:39 AM 89 1998 72 1  
MINIMUM 57 3:26 AM 30 2002 49 8  
AVERAGE 65 61 4  
 
PRECIPITATION (IN)  
TODAY T 0.41 2004 0.14 -0.14  
MONTH TO DATE 0.86 2.60 -1.74  
SINCE MAR 1 2.67 8.01 -5.34  
SINCE JAN 1 3.83 10.52 -6.69  
 
DEGREE DAYS  
HEATING  
TODAY 0 6 -6  
MONTH TO DATE 202 153 49  
SINCE MAR 1 1345 1495 -150  
SINCE JUL 1 6144 6272 -128  
 
COOLING  
TODAY 0 2 -2  
MONTH TO DATE 6 16 -10  
SINCE MAR 1 16 22 -6  
SINCE JAN 1 16 22 -6    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION SE (130)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 10.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 91 2012  
MINIMUM TEMPERATURE (F) 50 37 2002  
2008  
 
SUNRISE AND SUNSET  
MAY 18 2021...........SUNRISE 5:30 AM CDT SUNSET 8:10 PM CDT  
MAY 19 2021...........SUNRISE 5:29 AM CDT SUNSET 8:11 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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