CDUS43 KLOT 182134
CLIDPA

CLIMATE REPORT 
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT MON MAY 18 2026

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

...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR MAY 18 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)                                                          
 TODAY                                                               
  MAXIMUM         78   2:56 PM  89    1998  72      6       70        
  MINIMUM         69  10:28 AM  30    2002  49     20       44        
  AVERAGE         74                        61     13       57     

PRECIPITATION (IN)                                                    
  TODAY            0.33          0.41 2004   0.14   0.19     0.00     
  MONTH TO DATE    0.83                      2.60  -1.77     0.72     
  SINCE MAR 1     11.13                      8.01   3.12     5.62     
  SINCE JAN 1     12.38                     10.52   1.86     7.19     

DEGREE DAYS                                                           
 HEATING                                                              
  TODAY            0                         6     -6        8        
  MONTH TO DATE  192                       153     39      116        
  SINCE MAR 1   1226                      1495   -269     1220        
  SINCE JUL 1   5868                      6272   -404     5541        

 COOLING                                                              
  TODAY            9                         2      7        0        
  MONTH TO DATE   25                        16      9       27        
  SINCE MAR 1     37                        22     15       33        
  SINCE JAN 1     37                        22     15       33        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    SW (230)       
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION    SW (220)       
  AVERAGE WIND SPEED    13.3                                        


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED TODAY.                             
  THUNDERSTORM                                                        
  HEAVY RAIN                                                          
  RAIN                                                                
  LIGHT RAIN                                                          
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96          10:00 AM                                      
 LOWEST     61           2:00 AM                                      
 AVERAGE    79                                                        

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


THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   72        91      2012                      
 MINIMUM TEMPERATURE (F)   50        37      2002                      
                                             2008                     


SUNRISE AND SUNSET                                                    
MAY 18 2026...........SUNRISE   5:30 AM CDT   SUNSET   8:10 PM CDT     
MAY 19 2026...........SUNRISE   5:29 AM CDT   SUNSET   8:11 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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