850 
CDUS43 KLOT 142134
CLIDPA


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT FRI SEP 14 2012


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

...THE DU PAGE  AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 14 2012...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1997 TO 2012


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE
                VALUE   (LST)  VALUE       VALUE  FROM
                                                  NORMAL
...............................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         74    259 PM  85    2009  77     -3
                                      2004
  MINIMUM         46    553 AM  39    2011  54     -8
  AVERAGE         60                        65     -5

PRECIPITATION (IN)
  TODAY            0.00          1.21 2008   0.10  -0.10
  MONTH TO DATE    0.80                      1.55  -0.75
  SINCE SEP 1      0.80                      1.55  -0.75
  SINCE JAN 1     15.07                     27.18 -12.11

DEGREE DAYS
 HEATING
  TODAY            5                         3      2
  MONTH TO DATE   18                        21     -3
  SINCE SEP 1     18                        21     -3
  SINCE JUL 1     24                        30     -6

 COOLING
  TODAY            0                         3     -3
  MONTH TO DATE   77                        55     22
  SINCE SEP 1     77                        55     22
  SINCE JAN 1   1089                       779    310
...............................................................


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION  NW (310)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     4.3



WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG


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


THE DU PAGE  AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   76        86      2009
 MINIMUM TEMPERATURE (F)   53        36      2007


SUNRISE AND SUNSET
SEPTEMBER 14 2012.....SUNRISE   633 AM CDT   SUNSET   703 PM CDT
SEPTEMBER 15 2012.....SUNRISE   634 AM CDT   SUNSET   702 PM CDT


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




$$