418  
CDUS43 KILX 312133  
CLIDEC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE LINCOLN IL  
433 PM CDT SAT MAY 31 2025  
   
...............................  
 
   
..THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR MAY 31 2025  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 9999 TO 9999  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 83 247 PM MM MM 79 4 79  
MINIMUM 62 527 AM MM MM 58 4 54  
AVERAGE 73 69 4 67  
 
PRECIPITATION (IN)  
TODAY 0.00 MM MM 0.12 -0.12 0.00  
MONTH TO DATE 3.44 4.38 -0.94 4.82  
SINCE MAR 1 9.73 10.55 -0.82 13.08  
SINCE JAN 1 10.30 14.38 -4.08 18.22  
 
DEGREE DAYS  
HEATING  
TODAY 0 2 -2 0  
MONTH TO DATE 89 129 -40 14  
SINCE MAR 1 874 1210 -336 843  
SINCE JUL 1 4726 5383 -657 4400  
 
COOLING  
TODAY 8 5 3 2  
MONTH TO DATE 68 94 -26 107  
SINCE MAR 1 87 110 -23 135  
SINCE JAN 1 87 110 -23 135    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 10.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 65 600 AM  
LOWEST 37 1200 PM  
AVERAGE 51  
   
......................................................  
 
THE DECATUR IL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 MM MM  
MINIMUM TEMPERATURE (F) 59 MM MM  
 
SUNRISE AND SUNSET  
MAY 31 2025...........SUNRISE 530 AM CDT SUNSET 817 PM CDT  
JUNE 1 2025..........SUNRISE 529 AM CDT SUNSET 818 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab IL Page
Main Text Page