Climatological Report (Monthly)
Issued by NWS

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CXUS53 KLOT 011404
CLMMDW


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
900 AM CDT WED NOV 1 2017

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

...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 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              94   10/06/1963
 LOW               20   10/24/1981
                        10/18/1948
                        10/20/1930
HIGHEST            83   10/02        MM      MM       85
LOWEST             33   10/29        MM      MM       38
AVG. MAXIMUM     66.1              62.8     3.3     66.9
AVG. MINIMUM     51.0              45.7     5.3     51.1
MEAN             58.6              54.2     4.4     59.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        12.06   1954
 MINIMUM         0.20   1964
TOTALS          10.34              3.24    7.10     4.22

DEGREE_DAYS
HEATING TOTAL     237               349    -112      215
 SINCE 7/1        264               431    -167      226
COOLING TOTAL      41                16      25       39
 SINCE 1/1       1151              1045     106     1460
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.5
HIGHEST WIND SPEED/DIRECTION    41/310    DATE  10/14
HIGHEST GUST SPEED/DIRECTION    49/280    DATE  10/14

AVERAGE RH (PERCENT)     68


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

$$


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