000
CXUS53 KILX 011459
CLMMTO


CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
938 AM CDT MON OCT 1 2012

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

...THE MATTOON IL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2012...

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            88   09/06        MM      MM       99
                        09/04
LOWEST             36   09/24        MM      MM       39
AVG. MAXIMUM     75.2              78.3    -3.1     74.9
AVG. MINIMUM     54.7              55.2    -0.5     53.8
MEAN             64.9              66.7    -1.8     64.4
DAYS MAX >= 90      0               1.2    -1.2        4
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           8.18              3.07    5.11     2.29
DAILY AVG.       0.27              0.10    0.17     0.08
DAYS >= .01        11                MM      MM       13
DAYS >= .10         9                MM      MM        7
DAYS >= .50         7                MM      MM        1
DAYS >= 1.00        2                MM      MM        0
GREATEST
 24 HR. TOTAL    2.61   09/07 TO 09/08              0.78

DEGREE_DAYS
HEATING TOTAL      84                66      18      109
 SINCE 7/1         84                71      13      109
COOLING TOTAL      94               118     -24       98
 SINCE 1/1       1376              1038     338     1291
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.6
HIGHEST WIND SPEED/DIRECTION    39/360    DATE  09/07
HIGHEST GUST SPEED/DIRECTION    52/050    DATE  09/04

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           19
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                9     RAIN                       8
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      20     FOG W/VIS <= 1/4 MILE      6
HAZE                      6

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

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