Climatological Report (Daily)
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000
CDUS43 KLOT 100633
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1232 AM CST WED DEC 10 2014


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 9 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         38    101 PM  62    1879  37      1       25
  MINIMUM         31   1159 PM -14    1876  22      9        0
  AVERAGE         35                        29      6       13

PRECIPITATION (IN)
  YESTERDAY        T             1.47 2008   0.08  -0.08      T
  MONTH TO DATE    0.20                      0.80  -0.60     0.35
  SINCE DEC 1      0.20                      0.80  -0.60     0.35
  SINCE JAN 1     38.88                     35.44   3.44    40.50

SNOWFALL (IN)
  YESTERDAY       MM             5.1  1931   0.2   MM         T
  MONTH TO DATE    T                         1.9   -1.9      3.1
  SINCE DEC 1      T                         1.9   -1.9      3.1
  SINCE JUL 1      2.9                       3.3   -0.4      4.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       30                        36     -6       52
  MONTH TO DATE  307                       306      1      324
  SINCE DEC 1    307                       306      1      324
  SINCE JUL 1   1750                      1562    188     1607

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    799                       843    -44      933
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     N (350)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     N (350)
  AVERAGE WIND SPEED    13.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           100 AM
 LOWEST     72           800 PM
 AVERAGE    84

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   36        62      1879
 MINIMUM TEMPERATURE (F)   22        -8      1978
                                             1919


SUNRISE AND SUNSET
DECEMBER 10 2014......SUNRISE   709 AM CST   SUNSET   420 PM CST
DECEMBER 11 2014......SUNRISE   709 AM CST   SUNSET   420 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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