Climatological Report (Daily)
Issued by NWS
Issued by NWS
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383
CDUS43 KILX 182128
CLIMTO
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
428 PM CDT TUE AUG 18 2026
...................................
...THE MATTOON IL AIRPORT CLIMATE SUMMARY FOR AUGUST 18 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 82 238 PM MM MM 84 -2 92
MINIMUM 63 535 AM MM MM 64 -1 73
AVERAGE 73 74 -1 83
PRECIPITATION (IN)
TODAY 0.00 MM MM 0.06 -0.06 0.00
MONTH TO DATE 3.61 1.36 2.25 0.30
SINCE JUN 1 15.57 10.04 5.53 9.59
SINCE JAN 1 33.94 24.11 9.83 24.10
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 13 -13 1
SINCE JUL 1 0 1 -1 0
COOLING
TODAY 8 9 -1 18
MONTH TO DATE 213 174 39 209
SINCE JUN 1 782 749 33 930
SINCE JAN 1 911 855 56 987
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 2.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 100 AM
LOWEST 58 100 PM
AVERAGE 76
..........................................................
THE MATTOON IL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 MM MM
MINIMUM TEMPERATURE (F) 63 MM MM
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 609 AM CDT SUNSET 745 PM CDT
AUGUST 19 2026........SUNRISE 609 AM CDT SUNSET 743 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$