538  
CDUS43 KLOT 220632  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT SAT MAY 22 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR MAY 21 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 86 12:34 PM 87 2009 73 13 69  
MINIMUM 62 4:51 AM 26 2002 51 11 56  
AVERAGE 74 62 12 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.48 0.14 -0.14 0.00  
MONTH TO DATE 1.04 3.03 -1.99 7.17  
SINCE MAR 1 2.85 8.44 -5.59 14.73  
SINCE JAN 1 4.01 10.95 -6.94 17.38  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 5 -5 2  
MONTH TO DATE 202 170 32 242  
SINCE MAR 1 1345 1512 -167 1534  
SINCE JUL 1 6144 6289 -145 6124  
 
COOLING  
YESTERDAY 9 2 7 0  
MONTH TO DATE 30 22 8 1  
SINCE MAR 1 40 28 12 2  
SINCE JAN 1 40 28 12 2    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 8.3  
 
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) 73 88 2011  
MINIMUM TEMPERATURE (F) 51 34 2006  
 
SUNRISE AND SUNSET  
MAY 22 2021...........SUNRISE 5:26 AM CDT SUNSET 8:14 PM CDT  
MAY 23 2021...........SUNRISE 5:26 AM CDT SUNSET 8:15 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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