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116
CXUS43 KLOT 011420
CLMDPA


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
918 AM CDT WED OCT 1 2014

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

...THE DU PAGE  AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1997 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              95   09/02/2008
 LOW               32   09/24/2012
HIGHEST            88   09/05        MM      MM       92
LOWEST             39   09/13        MM      MM       41
AVG. MAXIMUM     74.5              75.6    -1.1     76.5
AVG. MINIMUM     51.3              52.9    -1.6     53.3
MEAN             62.9              64.2    -1.3     64.9

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        12.26   2008
 MINIMUM         0.39   2004
TOTALS           2.08              3.29   -1.21     2.10

DEGREE_DAYS
HEATING TOTAL     128               102      26       99
 SINCE 7/1        137               111      26      125
COOLING TOTAL      73                79      -6      102
 SINCE 1/1        762               803     -41      729
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.7
HIGHEST WIND SPEED/DIRECTION    32/310    DATE  09/05
HIGHEST GUST SPEED/DIRECTION    44/310    DATE  09/05

AVERAGE RH (PERCENT)     71


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

$$




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