495  
CDUS43 KLOT 220631  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
131 AM CDT MON MAY 22 2017  
 
   
...............................
 
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR MAY 21 2017...  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1997 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 63 317 AM 87 2009 73 -10 76  
MINIMUM 50 1159 PM 26 2002 50 0 50  
AVERAGE 57 61 -4 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 1.01 0.16 -0.13 0.00  
MONTH TO DATE 3.34 3.14 0.20 4.56  
SINCE MAR 1 12.76 8.85 3.91 10.48  
SINCE JAN 1 16.17 11.58 4.59 12.68  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 6 2 2  
MONTH TO DATE 225 171 54 231  
SINCE MAR 1 1412 1482 -70 1422  
SINCE JUL 1 5511 6237 -726 5625  
 
COOLING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 15 19 -4 0  
SINCE MAR 1 23 23 0 6  
SINCE JAN 1 23 23 0 6    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 13.5  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
   
......................................................
 
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 88 2011  
MINIMUM TEMPERATURE (F) 50 34 2006  
 
 
SUNRISE AND SUNSET  
MAY 22 2017...........SUNRISE 526 AM CDT SUNSET 814 PM CDT  
MAY 23 2017...........SUNRISE 526 AM CDT SUNSET 815 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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