571  
CDUS43 KILX 152131  
CLIDEC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE LINCOLN IL  
431 PM CDT TUE SEP 15 2026  
   
...............................
 
 
   
..THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 15 2026
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 2000 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 99 213 PM MM MM 79 20 94  
MINIMUM 67 1229 AM MM MM 55 12 62  
AVERAGE 83 67 16 78  
 
PRECIPITATION (IN)  
TODAY 0.00 MM MM 0.11 -0.11 0.00  
MONTH TO DATE 0.17 1.73 -1.56 0.05  
SINCE SEP 1 0.17 1.73 -1.56 0.05  
SINCE JAN 1 31.61 26.84 4.77 23.99  
 
DEGREE DAYS  
HEATING  
TODAY 0 2 -2 0  
MONTH TO DATE 0 15 -15 15  
SINCE SEP 1 0 15 -15 15  
SINCE JUL 1 1 20 -19 16  
 
COOLING  
TODAY 18 4 14 13  
MONTH TO DATE 188 80 108 82  
SINCE SEP 1 188 80 108 82  
SINCE JAN 1 1185 1038 147 1308    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 11.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 73 600 AM  
LOWEST 35 300 PM  
AVERAGE 54  
   
......................................................
 
 
THE DECATUR IL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 MM MM  
MINIMUM TEMPERATURE (F) 55 MM MM  
 
SUNRISE AND SUNSET  
SEPTEMBER 15 2026.....SUNRISE 636 AM CDT SUNSET 704 PM CDT  
SEPTEMBER 16 2026.....SUNRISE 637 AM CDT SUNSET 702 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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