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000
CXUS53 KILX 011136 RRB
CLMMTO

CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
515 AM CDT SUN OCT 1 2017

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

...THE MATTOON IL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
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               MM   MM
HIGHEST            95   09/21        MM      MM       89
LOWEST             42   09/02        MM      MM       52
AVG. MAXIMUM     82.4              78.3     4.1     80.9
AVG. MINIMUM     56.2              55.2     1.0     60.9
MEAN             69.3              66.7     2.6     70.9
DAYS MAX >= 90      7               1.2     5.8        0
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           MM   MM
 MINIMUM           MM   MM
TOTALS           0.24              3.07   -2.83     2.43
DAILY AVG.       0.01              0.10   -0.09     0.08
DAYS >= .01         3                MM      MM        8
DAYS >= .10         0                MM      MM        6
DAYS >= .50         0                MM      MM        2
DAYS >= 1.00        0                MM      MM        0
GREATEST
 24 HR. TOTAL    0.09   09/18 TO 09/18              1.01
                        09/13 TO 09/13

DEGREE_DAYS
HEATING TOTAL      44                66     -22       10
 SINCE 7/1         45                71     -26       15
COOLING TOTAL     181               118      63      193
 SINCE 1/1       1106              1038      68     1256
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.5
HIGHEST WIND SPEED/DIRECTION    25/330    DATE  09/05
HIGHEST GUST SPEED/DIRECTION    34/330    DATE  09/05

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           24
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      3
HAZE                      1

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

$$