Climatological Report (Monthly)
Issued by NWS

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CXUS53 KLOT 011135
CLMMDW


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
628 AM CDT FRI SEP 1 2017

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

...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1928 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH             104   08/09/1934
 LOW               43   08/29/1965
HIGHEST            92   08/16        MM      MM       94
LOWEST             53   08/25        MM      MM       59
AVG. MAXIMUM     80.8              82.1    -1.3     85.1
AVG. MINIMUM     63.8              66.2    -2.4     70.8
MEAN             72.3              74.1    -1.8     77.9

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         9.95   1987
 MINIMUM         0.71   2008
TOTALS           1.90              3.99   -2.09     6.42

DEGREE_DAYS
HEATING TOTAL       5                 4       1        0
 SINCE 7/1          5                 5       0        0
COOLING TOTAL     239               288     -49      409
 SINCE 1/1        906               910      -4     1192
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.0
HIGHEST WIND SPEED/DIRECTION    29/250    DATE  08/21
HIGHEST GUST SPEED/DIRECTION    38/320    DATE  08/03

AVERAGE RH (PERCENT)     65


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

$$


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