738
CDUS43 KILX 202131
CLIMTO
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
431 PM CDT SUN SEP 20 2026
...............................
..THE MATTOON IL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 89 238 PM MM MM 78 11 87
MINIMUM 73 607 AM MM MM 55 18 63
AVERAGE 81 66 15 75
PRECIPITATION (IN)
TODAY 0.00 MM MM 0.09 -0.09 T
MONTH TO DATE 0.08 1.94 -1.86 0.08
SINCE SEP 1 0.08 1.94 -1.86 0.08
SINCE JAN 1 34.24 27.11 7.13 24.27
DEGREE DAYS
HEATING
TODAY 0 2 -2 0
MONTH TO DATE 0 23 -23 20
SINCE SEP 1 0 23 -23 20
SINCE JUL 1 0 27 -27 24
COOLING
TODAY 16 4 12 10
MONTH TO DATE 293 106 187 117
SINCE SEP 1 293 106 187 117
SINCE JAN 1 1313 1064 249 1158
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 8.1
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 88 100 AM
LOWEST 45 200 PM
AVERAGE 67
......................................................
THE MATTOON IL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 MM MM
MINIMUM TEMPERATURE (F) 54 MM MM
SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE 639 AM CDT SUNSET 653 PM CDT
SEPTEMBER 21 2026.....SUNRISE 640 AM CDT SUNSET 652 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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