Climatological Report (Monthly)
Issued by NWS

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000
CXUS53 KILX 011136
CLMDEC

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

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

...THE DECATUR 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            94   09/23        MM      MM       93
                        09/21
LOWEST             43   09/30        MM      MM       51
AVG. MAXIMUM     82.0              78.6     3.4     83.0
AVG. MINIMUM     55.7              54.3     1.4     61.2
MEAN             68.9              66.5     2.4     72.1
DAYS MAX >= 90      7               1.9     5.1        9
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           0.88              2.89   -2.01     2.50
DAILY AVG.       0.03              0.10   -0.07     0.08
DAYS >= .01         3                MM      MM       11
DAYS >= .10         2                MM      MM        3
DAYS >= .50         0                MM      MM        2
DAYS >= 1.00        0                MM      MM        1
GREATEST
 24 HR. TOTAL    0.41   09/04 TO 09/04              1.33

DEGREE_DAYS
HEATING TOTAL      42                67     -25        6
 SINCE 7/1         43                73     -30       11
COOLING TOTAL     164               111      53      229
 SINCE 1/1       1070              1029      41     1364
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.4
HIGHEST WIND SPEED/DIRECTION    24/320    DATE  09/05
HIGHEST GUST SPEED/DIRECTION    32/230    DATE  09/04

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)     66

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       3
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      3
HAZE                      5

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

$$


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