636
CXUS53 KILX 011545
CLMDEC

CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
1045 AM CDT THU OCT 01 2026

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

...THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 2000 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH            101   09/02/2011
 LOW              35   09/24/2012
HIGHEST           99   09/15         MM      MM       99
LOWEST            44   09/28         MM      MM       42
AVG. MAXIMUM    84.7               78.9     5.8     85.8
AVG. MINIMUM    62.2               55.0     7.2     56.5
MEAN            73.4               67.0     6.4     71.2
DAYS MAX >= 90    10                4.0     6.0       10
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        9.46   2008
 MINIMUM        0.02   2004
TOTALS          1.87               2.98   -1.11     1.14
DAILY AVG.      0.06               0.10   -0.04     0.04
DAYS >= .01        5                8.9    -3.9        6
DAYS >= .10        5                4.7     0.3        2
DAYS >= .50        2                1.6     0.4        1
DAYS >= 1.00       0                0.8    -0.8        0
GREATEST
 24 HR. TOTAL   0.75   09/20 TO 09/21               0.71


DEGREE DAYS
HEATING TOTAL     11                 66     -55       15
 SINCE 7/1        12                 71     -59       MM
COOLING TOTAL    272                124     148      207
 SINCE 1/1      1269               1082     187       MM
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              7.0
HIGHEST WIND SPEED/DIRECTION    32/180    DATE  09/16
HIGHEST GUST SPEED/DIRECTION    47/180    DATE  09/16

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       4
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      12     FOG W/VIS <= 1/4 MILE      1
HAZE                      3

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

$$