Climatological Report (Daily)
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000
CDUS43 KLOT 180645
CLIMDW


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1244 AM CST THU DEC 18 2014


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

...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR DECEMBER 17 2014...

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


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         32   1216 AM  60    1977  35     -3       33
  MINIMUM         26   1159 PM  -7    1951  22      4       16
  AVERAGE         29                        28      1       25

PRECIPITATION (IN)
  YESTERDAY        T             0.44 1928   0.08  -0.08      T
  MONTH TO DATE    0.26                      1.52  -1.26     0.34
  SINCE DEC 1      0.26                      1.52  -1.26     0.34
  SINCE JAN 1     41.18                     38.04   3.14    33.91

DEGREE DAYS
 HEATING
  YESTERDAY       36                        37     -1       40
  MONTH TO DATE  498                       580    -82      692
  SINCE DEC 1    498                       580    -82      692
  SINCE JUL 1   1755                      1715     40     1890

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1066                      1045     21     1091
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION   W (290)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED    11.1



WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW


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


THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   34        59      1939
 MINIMUM TEMPERATURE (F)   22        -9      1983


SUNRISE AND SUNSET
DECEMBER 18 2014......SUNRISE   713 AM CST   SUNSET   422 PM CST
DECEMBER 19 2014......SUNRISE   714 AM CST   SUNSET   422 PM CST


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




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