Climatological Report (Daily)
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CDUS43 KLOT 090636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1236 AM CST TUE DEC 9 2014


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 8 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         37    651 PM  64    1946  37      0       26
  MINIMUM         32    656 AM  -7    1882  23      9       15
  AVERAGE         35                        30      5       21

PRECIPITATION (IN)
  YESTERDAY        0.20          1.21 1885   0.09   0.11     0.24
  MONTH TO DATE    0.20                      0.72  -0.52     0.35
  SINCE DEC 1      0.20                      0.72  -0.52     0.35
  SINCE JAN 1     38.88                     35.36   3.52    40.50

SNOWFALL (IN)
  YESTERDAY        T             6.9  1977   0.2   -0.2      3.1
  MONTH TO DATE    T                         1.7   -1.7      3.1
  SINCE DEC 1      T                         1.7   -1.7      3.1
  SINCE JUL 1      2.9                       3.1   -0.2      4.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       30                        35     -5       44
  MONTH TO DATE  277                       270      7      272
  SINCE DEC 1    277                       270      7      272
  SINCE JUL 1   1720                      1526    194     1555

 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    16   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     9.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           300 PM
 LOWEST     72          1200 AM
 AVERAGE    86

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   37        62      1879
 MINIMUM TEMPERATURE (F)   22       -14      1876


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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