Climatological Report (Monthly)
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CXUS53 KLOT 011420
CLMMDW


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

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

...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1928 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH             102   09/15/1939
 LOW               29   09/28/1942
HIGHEST            89   09/05        MM      MM       96
LOWEST             42   09/13        MM      MM       49
AVG. MAXIMUM     75.2              75.3    -0.1     77.1
AVG. MINIMUM     57.0              57.5    -0.5     59.7
MEAN             66.1              66.4    -0.3     68.4

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        14.17   1961
 MINIMUM         0.01   1979
TOTALS           2.50              3.31   -0.81     1.09

DEGREE_DAYS
HEATING TOTAL      86                77       9       50
 SINCE 7/1         87                82       5       54
COOLING TOTAL     126               119       7      161
 SINCE 1/1       1058              1029      29     1057
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.0
HIGHEST WIND SPEED/DIRECTION    30/320    DATE  09/05
HIGHEST GUST SPEED/DIRECTION    38/300    DATE  09/05

AVERAGE RH (PERCENT)     67


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

$$


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