Climatological Report (Daily)
Issued by NWS
Issued by NWS
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048
CDUS43 KILX 210637
CLIMTO
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
137 AM CDT FRI AUG 21 2026
...................................
...THE MATTOON IL AIRPORT CLIMATE SUMMARY FOR AUGUST 20 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 82 237 PM MM MM 84 -2 83
MINIMUM 64 1143 PM MM MM 63 1 62
AVERAGE 73 74 -1 73
PRECIPITATION (IN)
YESTERDAY 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
YESTERDAY 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
YESTERDAY 8 9 -1 8
MONTH TO DATE 231 192 39 233
SINCE JUN 1 800 767 33 954
SINCE JAN 1 929 873 56 1011
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 5.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 400 AM
LOWEST 62 500 PM
AVERAGE 81
..........................................................
THE MATTOON IL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 MM MM
MINIMUM TEMPERATURE (F) 63 MM MM
SUNRISE AND SUNSET
AUGUST 21 2026........SUNRISE 611 AM CDT SUNSET 740 PM CDT
AUGUST 22 2026........SUNRISE 612 AM CDT SUNSET 739 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$