Climatological Report (Monthly)
Issued by NWS

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000
CXUS53 KILX 012245
CLMDEC

CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
445 PM CST WED JAN 1 2014

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

...THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 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            63   12/20        MM      MM       72
LOWEST              2   12/12        MM      MM       14
AVG. MAXIMUM     37.1              38.8    -1.7     45.3
AVG. MINIMUM     19.6              22.9    -3.3     31.0
MEAN             28.4              30.8    -2.4     38.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     13               8.0     5.0        3
DAYS MIN <= 32     27              24.5     2.5       18
DAYS MIN <= 0       0               0.9    -0.9        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM
 MINIMUM           MM   MM
TOTALS           1.54              2.54   -1.00     2.28
DAILY AVG.       0.05              0.08   -0.03     0.07
DAYS >= .01         5                MM      MM       11
DAYS >= .10         3                MM      MM        7
DAYS >= .50         1                MM      MM        1
DAYS >= 1.00        0                MM      MM        0
GREATEST
 24 HR. TOTAL    0.94   12/21 TO 12/22              0.95

DEGREE_DAYS
HEATING TOTAL    1127              1058      69      796
 SINCE 7/1       2275              2139     136     1945
COOLING TOTAL       0                 0       0        0
 SINCE 1/1       1079              1048      31     1427
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.3
HIGHEST WIND SPEED/DIRECTION    29/200    DATE  12/18
HIGHEST GUST SPEED/DIRECTION    35/200    DATE  12/18

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY         15

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                6     FREEZING RAIN              1
LT FREEZING RAIN          5     HAIL                       0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW               11     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      4
HAZE                      7

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

$$






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