835
CXUS53 KILX 011623
CLMMTO

CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
1123 AM CDT WED OCT 01 2025

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

...THE MATTOON IL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 9999 TO 9999

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             MM   MM
 LOW              37   09/28/2022
HIGHEST           96   09/14         MM      MM       92
LOWEST            45   09/07         MM      MM       42
                       09/09
AVG. MAXIMUM    83.9               78.7     5.2     80.7
AVG. MINIMUM    56.2               56.1     0.1     57.1
MEAN            70.1               67.4     2.7     68.9
DAYS MAX >= 90     7                3.0     4.0        2
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        3.57   2021
 MINIMUM        1.03   2022
TOTALS          0.50R              2.85   -2.35     1.69
DAILY AVG.      0.02               0.09   -0.07     0.06
DAYS >= .01        3                7.8    -4.8        7
DAYS >= .10        2                3.8    -1.8        4
DAYS >= .50        0                1.7    -1.7        1
DAYS >= 1.00       0                0.7    -0.7        0
GREATEST
 24 HR. TOTAL   0.28   09/23 TO 09/23               0.85


DEGREE DAYS
HEATING TOTAL     20                 61     -41       25
 SINCE 7/1        24                 65     -41       MM
COOLING TOTAL    178                133      45      149
 SINCE 1/1      1219               1091     128       MM
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              5.3
HIGHEST WIND SPEED/DIRECTION    21/290    DATE  09/05
HIGHEST GUST SPEED/DIRECTION    35/270    DATE  09/05

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                5     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

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

$$