Climatological Report (Monthly)
Issued by NWS

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084
CXUS53 KILX 011344
CLMDEC


CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
832 AM CDT THU JUN 1 2017

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

...THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 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            87   05/18        MM      MM       85
LOWEST             38   05/07        MM      MM       41
                        05/03
AVG. MAXIMUM     72.6              74.2    -1.6     73.4
AVG. MINIMUM     52.1              51.4     0.7     52.5
MEAN             62.4              62.8    -0.4     62.9
DAYS MAX >= 90      0               0.7    -0.7        0
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           8.55              4.29    4.26     3.15
DAILY AVG.       0.28              0.14    0.14     0.10
DAYS >= .01        14                MM      MM       11
DAYS >= .10         7                MM      MM        8
DAYS >= .50         6                MM      MM        1
DAYS >= 1.00        4                MM      MM        0
GREATEST
 24 HR. TOTAL    2.90   05/19 TO 05/19              0.83

DEGREE_DAYS
HEATING TOTAL     148               141       7      138
 SINCE 7/1       4411              5504   -1093     4485
COOLING TOTAL      74                73       1       83
 SINCE 1/1         97                87      10       90
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.7
HIGHEST WIND SPEED/DIRECTION    35/190    DATE  05/17
HIGHEST GUST SPEED/DIRECTION    47/180    DATE  05/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              8     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       7
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      15     FOG W/VIS <= 1/4 MILE      1
HAZE                      0

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

$$




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