515  
CDUS43 KLOT 092138  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
438 PM CDT SUN MAY 09 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR MAY 9 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 58 3:52 PM 86 2004 68 -10  
MINIMUM 38 1:36 AM 26 2020 46 -8  
AVERAGE 48 57 -9  
 
PRECIPITATION (IN)  
TODAY 0.23 1.15 2003 0.15 0.08  
MONTH TO DATE 0.82 1.33 -0.51  
SINCE MAR 1 2.63 6.74 -4.11  
SINCE JAN 1 3.79 9.25 -5.46  
 
DEGREE DAYS  
HEATING  
TODAY 17 9 8  
MONTH TO DATE 106 89 17  
SINCE MAR 1 1249 1431 -182  
SINCE JUL 1 6048 6208 -160  
 
COOLING  
TODAY 0 1 -1  
MONTH TO DATE 6 5 1  
SINCE MAR 1 16 11 5  
SINCE JAN 1 16 11 5    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION NE (60)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 13.0  
 
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) 69 90 2011  
MINIMUM TEMPERATURE (F) 47 37 2008  
2020  
 
SUNRISE AND SUNSET  
MAY 9 2021...........SUNRISE 5:39 AM CDT SUNSET 8:01 PM CDT  
MAY 10 2021...........SUNRISE 5:38 AM CDT SUNSET 8:02 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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