580  
CDUS43 KILX 130649  
CLIMTO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE LINCOLN IL  
1237 AM CST WED DEC 13 2017  
 
   
...............................
 
 
   
..THE MATTOON IL AIRPORT CLIMATE SUMMARY FOR DECEMBER 12 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 9999 TO 9999  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 34 1227 AM MM MM 39 -5 38  
MINIMUM 20 851 PM MM MM 25 -5 24  
AVERAGE 27 32 -5 31  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 MM MM 0.08 -0.08 0.00  
MONTH TO DATE 0.14 1.04 -0.90 0.13  
SINCE DEC 1 0.14 1.04 -0.90 0.13  
SINCE JAN 1 35.83 36.32 -0.49 31.14  
 
DEGREE DAYS  
HEATING  
YESTERDAY 38 33 5 34  
MONTH TO DATE 337 372 -35 395  
SINCE DEC 1 337 372 -35 395  
SINCE JUL 1 1267 1431 -164 1106  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1161 1057 104 1316    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 16.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 100 AM  
LOWEST 34 400 PM  
AVERAGE 62  
   
......................................................
 
 
 
THE MATTOON IL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 39 MM MM  
MINIMUM TEMPERATURE (F) 25 MM MM  
 
 
SUNRISE AND SUNSET  
DECEMBER 13 2017......SUNRISE 705 AM CST SUNSET 430 PM CST  
DECEMBER 14 2017......SUNRISE 706 AM CST SUNSET 430 PM CST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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