Climatological Report (Daily)
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CDUS43 KLOT 092237
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CST TUE DEC 9 2014


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR DECEMBER 9 2014...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         38    101 PM  62    1879  37      1       25
  MINIMUM         34    245 AM -14    1876  22     12        0
  AVERAGE         36                        29      7       13

PRECIPITATION (IN)
  TODAY            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)
  TODAY            0.0           5.1  1931   0.2   -0.2       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

DEGREE DAYS
 HEATING
  TODAY           29                        36     -7       52
  MONTH TO DATE  306                       306      0      324
  SINCE DEC 1    306                       306      0      324
  SINCE JUL 1   1749                      1562    187     1607

 COOLING
  TODAY            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 (340)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED    13.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           100 AM
 LOWEST     75           400 PM
 AVERAGE    86

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


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


SUNRISE AND SUNSET
DECEMBER  9 2014......SUNRISE   708 AM CST   SUNSET   420 PM CST
DECEMBER 10 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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