Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KILX 202135
CLIMTO
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
435 PM CDT THU AUG 20 2026
...................................
...THE MATTOON IL AIRPORT CLIMATE SUMMARY FOR AUGUST 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 82 237 PM MM MM 84 -2 83
MINIMUM 67 610 AM MM MM 63 4 62
AVERAGE 75 74 1 73
PRECIPITATION (IN)
TODAY 0.07 MM MM 0.07 0.00 0.00
MONTH TO DATE 3.74 1.51 2.23 0.31
SINCE JUN 1 15.70 10.19 5.51 9.60
SINCE JAN 1 34.07 24.26 9.81 24.11
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 10 9 1 8
MONTH TO DATE 233 192 41 233
SINCE JUN 1 802 767 35 954
SINCE JAN 1 931 873 58 1011
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 6.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 400 AM
LOWEST 62 200 PM
AVERAGE 81
..........................................................
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 20 2026........SUNRISE 610 AM CDT SUNSET 742 PM CDT
AUGUST 21 2026........SUNRISE 611 AM CDT SUNSET 740 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$