Climatological Report (Monthly)
Issued by NWS

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000
CXUS53 KILX 020352 CCA
CLMDEC

CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE LINCOLN IL
1050 PM CDT SAT JUN 1 2013

CORRECTED NUMBER OF THUNDERSTORM DAYS
ADDED HEATING DEGREE DAYS

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

...THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 2013...

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            87   05/19        MM      MM       93
                        05/15
                        05/14
LOWEST             36   05/13        MM      MM       41
AVG. MAXIMUM     74.6              74.2     0.4     81.3
AVG. MINIMUM     54.2              51.4     2.8     56.1
MEAN             64.4              62.8     1.6     68.7
DAYS MAX >= 90      0               0.7    -0.7        5
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.3    -0.3        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM
 MINIMUM           MM   MM
TOTALS           6.63              4.29    2.34     1.68
DAILY AVG.       0.21              0.14    0.07     0.05
DAYS >= .01        17                MM      MM        6
DAYS >= .10        14                MM      MM        6
DAYS >= .50         6                MM      MM        1
DAYS >= 1.00        2                MM      MM        0
GREATEST
 24 HR. TOTAL    1.09   05/20                       0.91

DEGREE_DAYS
HEATING TOTAL     116               141     -25       46
 SINCE 7/1       5405              5504     -99     4231
COOLING TOTAL     102                73      29      166
 SINCE 1/1        112                87      25      224
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.7
HIGHEST WIND SPEED/DIRECTION    41/210    DATE  05/31
HIGHEST GUST SPEED/DIRECTION    58/190    DATE  05/31

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           12
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             12     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                      10
LIGHT RAIN               21     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      1
HAZE                      4

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

$$
GEELHART
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