162
CDUS43 KILX 212128
CLIMTO
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
428 PM CDT THU MAY 21 2026
...............................
..THE MATTOON IL AIRPORT CLIMATE SUMMARY FOR MAY 21 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 67 259 PM MM MM 76 -9 62
MINIMUM 49 341 AM MM MM 56 -7 55
AVERAGE 58 66 -8 59
PRECIPITATION (IN)
TODAY 0.00 MM MM 0.12 -0.12 0.00
MONTH TO DATE 3.46 2.76 0.70 3.68
SINCE MAR 1 16.29 9.12 7.17 12.97
SINCE JAN 1 18.20 12.97 5.23 14.33
DEGREE DAYS
HEATING
TODAY 7 3 4 6
MONTH TO DATE 137 103 34 84
SINCE MAR 1 819 1154 -335 863
SINCE JUL 1 4701 5264 -563 4796
COOLING
TODAY 0 4 -4 0
MONTH TO DATE 25 46 -21 39
SINCE MAR 1 88 61 27 48
SINCE JAN 1 88 61 27 48
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 11.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 400 AM
LOWEST 61 300 PM
AVERAGE 71
......................................................
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 21 2026...........SUNRISE 534 AM CDT SUNSET 806 PM CDT
MAY 22 2026...........SUNRISE 534 AM CDT SUNSET 807 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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