Climatological Report (Daily)
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861
CDUS43 KILX 182132
CLIDEC

CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
432 PM CDT FRI SEP 18 2026

...................................

...THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 18 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         87   1217 PM  MM      MM  79      8       95
  MINIMUM         71    640 AM  MM      MM  54     17       56
  AVERAGE         79                        66     13       76

PRECIPITATION (IN)
  TODAY            0.00         MM      MM   0.09  -0.09     0.00
  MONTH TO DATE    0.69                      2.00  -1.31     0.05
  SINCE SEP 1      0.69                      2.00  -1.31     0.05
  SINCE JAN 1     32.13                     27.11   5.02    23.99

DEGREE DAYS
 HEATING
  TODAY            0                         2     -2        0
  MONTH TO DATE    0                        21    -21       15
  SINCE SEP 1      0                        21    -21       15
  SINCE JUL 1      1                        26    -25       16

 COOLING
  TODAY           14                         4     10       11
  MONTH TO DATE  235                        92    143      111
  SINCE SEP 1    235                        92    143      111
  SINCE JAN 1   1232                      1050    182     1337
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION    NE (60)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    NE (30)
  AVERAGE WIND SPEED    10.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           100 AM
 LOWEST     67           100 PM
 AVERAGE    82

..........................................................


THE DECATUR IL AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78        MM        MM
 MINIMUM TEMPERATURE (F)   54        MM        MM


SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE   639 AM CDT   SUNSET   659 PM CDT
SEPTEMBER 19 2026.....SUNRISE   640 AM CDT   SUNSET   657 PM CDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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