Climatological Report (Monthly)
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CXUS53 KLOT 011323
CLMMDW


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
712 AM CST THU JAN 1 2015

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

...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 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              72   12/03/2012
 LOW              -20   12/24/1983
HIGHEST            53   12/14        MM      MM       57
LOWEST              6   12/31        MM      MM       -3
AVG. MAXIMUM     39.1              35.3     3.8     32.0
AVG. MINIMUM     30.1              22.7     7.4     17.4
MEAN             34.6              29.0     5.6     24.7

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.21   1982
 MINIMUM         0.50   1989
TOTALS           0.78              2.57   -1.79     0.93

DEGREE_DAYS
HEATING TOTAL     934              1116    -182     1243
 SINCE 7/1       2191              2251     -60     2441
COOLING TOTAL       0                 0       0        0
 SINCE 1/1       1066              1045      21     1091
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.8
HIGHEST WIND SPEED/DIRECTION    29/260    DATE  12/27
HIGHEST GUST SPEED/DIRECTION    36/260    DATE  12/27

AVERAGE RH (PERCENT)     72


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

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