CDUS43 KILX 180632
CLIMTO

CLIMATE REPORT 
NATIONAL WEATHER SERVICE LINCOLN IL
132 AM CDT MON MAY 18 2026

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

...THE MATTOON IL AIRPORT CLIMATE SUMMARY FOR MAY 17 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1998 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         83        MM  MM      MM  74      9       69    
  MINIMUM         65        MM  MM      MM  54     11       54    
  AVERAGE         74                        64     10       62     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00         MM      MM   0.12  -0.12     0.00     
  MONTH TO DATE    2.54                      2.28   0.26     2.89     
  SINCE MAR 1     15.37                      8.64   6.73    12.18     
  SINCE JAN 1     17.28                     12.49   4.79    13.54     

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                         4     -4        3        
  MONTH TO DATE  126                        89     37       76        
  SINCE MAR 1    808                      1140   -332      855        
  SINCE JUL 1   4690                      5250   -560     4788        

 COOLING                                                              
  YESTERDAY        9                         3      6        0        
  MONTH TO DATE   14                        32    -18       34        
  SINCE MAR 1     77                        47     30       43        
  SINCE JAN 1     77                        47     30       43        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (190)       
  HIGHEST GUST SPEED    40   HIGHEST GUST DIRECTION     S (180)       
  AVERAGE WIND SPEED    12.6                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.1                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           300 AM                                      
 LOWEST     51           900 PM                                      
 AVERAGE    74                                                        

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THE MATTOON IL AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   75        MM        MM                      
 MINIMUM TEMPERATURE (F)   55        MM        MM                      


SUNRISE AND SUNSET                                                    
MAY 18 2026...........SUNRISE   537 AM CDT   SUNSET   803 PM CDT     
MAY 19 2026...........SUNRISE   536 AM CDT   SUNSET   804 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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