595
CDUS43 KILX 202127
CLIMTO
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
427 PM CDT WED MAY 20 2026
...............................
..THE MATTOON IL AIRPORT CLIMATE SUMMARY FOR MAY 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 67 300 PM MM MM 75 -8 78
MINIMUM 56 MM MM MM 55 1 59
AVERAGE 62 65 -3 69
PRECIPITATION (IN)
TODAY T MM MM 0.12 -0.12 0.79
MONTH TO DATE 3.46 2.64 0.82 3.68
SINCE MAR 1 16.29 9.00 7.29 12.97
SINCE JAN 1 18.20 12.85 5.35 14.33
DEGREE DAYS
HEATING
TODAY 3 3 0 0
MONTH TO DATE 129 100 29 78
SINCE MAR 1 811 1151 -340 857
SINCE JUL 1 4693 5261 -568 4790
COOLING
TODAY 0 4 -4 4
MONTH TO DATE 25 42 -17 39
SINCE MAR 1 88 57 31 48
SINCE JAN 1 88 57 31 48
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WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 11.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 1200 AM
LOWEST 65 100 PM
AVERAGE 76
......................................................
THE MATTOON IL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 MM MM
MINIMUM TEMPERATURE (F) 56 MM MM
SUNRISE AND SUNSET
MAY 20 2026...........SUNRISE 535 AM CDT SUNSET 805 PM CDT
MAY 21 2026...........SUNRISE 534 AM CDT SUNSET 806 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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