635  
CDUS43 KLOT 112133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT TUE MAY 11 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR MAY 11 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 1:28 PM 90 2011 69 -11  
MINIMUM 33R 5:27 AM 36 2006 47 -14  
AVERAGE 46 58 -12  
 
PRECIPITATION (IN)  
TODAY 0.00 2.07 2002 0.15 -0.15  
MONTH TO DATE 0.82 1.62 -0.80  
SINCE MAR 1 2.63 7.03 -4.40  
SINCE JAN 1 3.79 9.54 -5.75  
 
DEGREE DAYS  
HEATING  
TODAY 19 8 11  
MONTH TO DATE 145 105 40  
SINCE MAR 1 1288 1447 -159  
SINCE JUL 1 6087 6224 -137  
 
COOLING  
TODAY 0 1 -1  
MONTH TO DATE 6 7 -1  
SINCE MAR 1 16 13 3  
SINCE JAN 1 16 13 3    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION N (20)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 6.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 88 2011  
MINIMUM TEMPERATURE (F) 47 34 2020  
 
SUNRISE AND SUNSET  
MAY 11 2021...........SUNRISE 5:37 AM CDT SUNSET 8:03 PM CDT  
MAY 12 2021...........SUNRISE 5:36 AM CDT SUNSET 8:04 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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