Climatological Report (Monthly)
Issued by NWS

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031
CXUS43 KLOT 011457
CLMDPA


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
949 AM CDT SAT OCT 1 2016

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

...THE DU PAGE  AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1997 TO 2016

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            92   09/06        MM      MM       91
LOWEST             47   09/27        MM      MM       44
AVG. MAXIMUM     78.3              75.6     2.7     78.3
AVG. MINIMUM     58.5              52.9     5.6     56.8
MEAN             68.4              64.2     4.2     67.6

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        12.26   2008
 MINIMUM         0.39   2004
TOTALS           0.91              3.29   -2.38     4.41

DEGREE_DAYS
HEATING TOTAL      27               102     -75       55
 SINCE 7/1         28               111     -83       88
COOLING TOTAL     139                79      60      139
 SINCE 1/1        985               803     182      711
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.4
HIGHEST WIND SPEED/DIRECTION    33/170    DATE  09/09
HIGHEST GUST SPEED/DIRECTION    46/180    DATE  09/09

AVERAGE RH (PERCENT)     70


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

$$



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