138  
CDUS43 KLOT 110636  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
136 AM CDT TUE MAY 11 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR MAY 10 2021...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
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 55 2:50 PM 90 2011 69 -14 51  
MINIMUM 35R 2:41 AM 37 2008 47 -12 37  
2020  
AVERAGE 45 58 -13 44  
 
PRECIPITATION (IN)  
YESTERDAY T 1.97 0.14 -0.14 0.30  
MONTH TO DATE 0.82 1.47 -0.65 0.46  
SINCE MAR 1 2.63 6.88 -4.25 8.02  
SINCE JAN 1 3.79 9.39 -5.60 10.67  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 8 12 21  
MONTH TO DATE 126 97 29 159  
SINCE MAR 1 1269 1439 -170 1451  
SINCE JUL 1 6068 6216 -148 6041  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 6 6 0 0  
SINCE MAR 1 16 12 4 1  
SINCE JAN 1 16 12 4 1    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION NE (50)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 7.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 90 2011  
MINIMUM TEMPERATURE (F) 47 36 2006  
 
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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