Climatological Report (Daily)
Issued by NWS
Issued by NWS
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531
CDUS43 KILX 170628
CLIMTO
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
128 AM CDT THU SEP 17 2026
...................................
...THE MATTOON IL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 16 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 94 314 PM MM MM 79 15 90
MINIMUM 71 321 AM MM MM 56 15 58
AVERAGE 83 68 15 74
PRECIPITATION (IN)
YESTERDAY T MM MM 0.10 -0.10 0.00
MONTH TO DATE 0.08 1.57 -1.49 0.08
SINCE SEP 1 0.08 1.57 -1.49 0.08
SINCE JAN 1 34.24 26.74 7.50 24.27
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 0 15 -15 20
SINCE SEP 1 0 15 -15 20
SINCE JUL 1 0 19 -19 24
COOLING
YESTERDAY 18 4 14 9
MONTH TO DATE 223 90 133 81
SINCE SEP 1 223 90 133 81
SINCE JAN 1 1243 1048 195 1122
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 4.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 500 AM
LOWEST 47 300 PM
AVERAGE 72
..........................................................
THE MATTOON IL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 MM MM
MINIMUM TEMPERATURE (F) 56 MM MM
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 636 AM CDT SUNSET 658 PM CDT
SEPTEMBER 18 2026.....SUNRISE 637 AM CDT SUNSET 657 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$