CDUS43 KLOT 200641
CLIDPA

CLIMATE REPORT 
NATIONAL WEATHER SERVICE CHICAGO IL
141 AM CDT WED MAY 20 2026

...................................

...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR MAY 19 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1997 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         78  12:58 PM  91    2012  72      6       55        
  MINIMUM         57  11:59 PM  37    2002  50      7       43        
                                      2008                           
  AVERAGE         68                        61      7       49     

PRECIPITATION (IN)                                                    
  YESTERDAY        T             1.37 2005   0.15  -0.15     0.00     
  MONTH TO DATE    0.83                      2.75  -1.92     0.72     
  SINCE MAR 1     11.13                      8.16   2.97     5.62     
  SINCE JAN 1     12.38                     10.67   1.71     7.19     

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                         6     -6       16        
  MONTH TO DATE  192                       159     33      132        
  SINCE MAR 1   1226                      1501   -275     1236        
  SINCE JUL 1   5868                      6278   -410     5557        

 COOLING                                                              
  YESTERDAY        3                         2      1        0        
  MONTH TO DATE   26                        18      8       27        
  SINCE MAR 1     38                        24     14       33        
  SINCE JAN 1     38                        24     14       33        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION    SW (220)       
  HIGHEST GUST SPEED    37   HIGHEST GUST DIRECTION    SW (220)       
  AVERAGE WIND SPEED    15.0                                        


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  NO SIGNIFICANT WEATHER WAS OBSERVED.                                  


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90          12:00 AM                                      
 LOWEST     64          11:00 AM                                      
 AVERAGE    77                                                        

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THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   72        91      2012                      
 MINIMUM TEMPERATURE (F)   50        32      2002                      


SUNRISE AND SUNSET                                                    
MAY 20 2026...........SUNRISE   5:28 AM CDT   SUNSET   8:12 PM CDT     
MAY 21 2026...........SUNRISE   5:27 AM CDT   SUNSET   8:12 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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