Climatological Report (Daily)
Issued by NWS
Issued by NWS
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890
CDUS43 KILX 172137
CLIDEC
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
437 PM CDT THU SEP 17 2026
...................................
...THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 17 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 95 259 PM MM MM 79 16 91
MINIMUM 69 303 AM MM MM 55 14 53
AVERAGE 82 67 15 72
PRECIPITATION (IN)
TODAY 0.00 MM MM 0.09 -0.09 0.00
MONTH TO DATE 0.69 1.91 -1.22 0.05
SINCE SEP 1 0.69 1.91 -1.22 0.05
SINCE JAN 1 32.13 27.02 5.11 23.99
DEGREE DAYS
HEATING
TODAY 0 2 -2 0
MONTH TO DATE 0 19 -19 15
SINCE SEP 1 0 19 -19 15
SINCE JUL 1 1 24 -23 16
COOLING
TODAY 17 4 13 7
MONTH TO DATE 221 88 133 100
SINCE SEP 1 221 88 133 100
SINCE JAN 1 1218 1046 172 1326
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 5.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 100 AM
LOWEST 48 300 PM
AVERAGE 72
..........................................................
THE DECATUR IL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 MM MM
MINIMUM TEMPERATURE (F) 54 MM MM
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 638 AM CDT SUNSET 701 PM CDT
SEPTEMBER 18 2026.....SUNRISE 639 AM CDT SUNSET 659 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$