Climatological Report (Daily)
Issued by NWS
Issued by NWS
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571
CDUS43 KILX 152131
CLIDEC
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
431 PM CDT TUE SEP 15 2026
...................................
...THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 15 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 2000 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 99 213 PM MM MM 79 20 94
MINIMUM 67 1229 AM MM MM 55 12 62
AVERAGE 83 67 16 78
PRECIPITATION (IN)
TODAY 0.00 MM MM 0.11 -0.11 0.00
MONTH TO DATE 0.17 1.73 -1.56 0.05
SINCE SEP 1 0.17 1.73 -1.56 0.05
SINCE JAN 1 31.61 26.84 4.77 23.99
DEGREE DAYS
HEATING
TODAY 0 2 -2 0
MONTH TO DATE 0 15 -15 15
SINCE SEP 1 0 15 -15 15
SINCE JUL 1 1 20 -19 16
COOLING
TODAY 18 4 14 13
MONTH TO DATE 188 80 108 82
SINCE SEP 1 188 80 108 82
SINCE JAN 1 1185 1038 147 1308
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 11.7
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 73 600 AM
LOWEST 35 300 PM
AVERAGE 54
..........................................................
THE DECATUR IL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 MM MM
MINIMUM TEMPERATURE (F) 55 MM MM
SUNRISE AND SUNSET
SEPTEMBER 15 2026.....SUNRISE 636 AM CDT SUNSET 704 PM CDT
SEPTEMBER 16 2026.....SUNRISE 637 AM CDT SUNSET 702 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$