Climatological Report (Seasonal)
Issued by NWS

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761
CXUS53 KILX 011541
CLSDEC

CHICLMDEC 000
TTAA00 KILX 011538


CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
1035 AM CDT FRI SEP 1 2017

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

...THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR THE SEASON, FROM
6/1/2017 TO 8/31/2017...

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   07/21        MM      MM       95
LOWEST             50   06/27        MM      MM       52
                        06/01
AVG. MAXIMUM     84.6              84.5     0.1     86.1
AVG. MINIMUM     62.6              63.1    -0.5     66.1
MEAN             73.6              73.8    -0.2     76.1
DAYS MAX >= 90     17              17.4    -0.4       23
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           7.24             11.86   -4.62    12.06
DAILY AVG.       0.08                               0.13
DAYS >= .01        28                MM      MM       32
DAYS >= .10        14                MM      MM       15
DAYS >= .50         2                MM      MM        7
DAYS >= 1.00        2                MM      MM        5
GREATEST
 24 HR. TOTAL    1.69   MM                          2.10

DEGREE_DAYS
HEATING TOTAL       5                22     -17        5
 SINCE 7/1          1                 6      -5        5
COOLING TOTAL     809               832     -23     1045
 SINCE 1/1        906               918     -12     1135

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              7.7
HIGHEST WIND SPEED/DIRECTION    37/320    DATE  07/11
HIGHEST GUST SPEED/DIRECTION    53/330    DATE  07/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           78
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN               12     RAIN                      13
LIGHT RAIN               33     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      30     FOG W/VIS <= 1/4 MILE      4
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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