Climatological Report (Daily)
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000
CDUS43 KLOT 102235
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CST SAT DEC 10 2016


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR DECEMBER 10 2016...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         23    359 PM  62    1879  36    -13       57
  MINIMUM         18    804 AM  -8    1978  22     -4       41
                                      1919
  AVERAGE         21                        29     -8       49

PRECIPITATION (IN)
  TODAY            T             2.18 1971   0.08  -0.08     0.00
  MONTH TO DATE    0.51                      0.88  -0.37     0.39
  SINCE DEC 1      0.51                      0.88  -0.37     0.39
  SINCE JAN 1     34.71                     35.52  -0.81    35.37

SNOWFALL (IN)
  TODAY            T            10.9  1934   0.3   -0.3      0.0
  MONTH TO DATE    6.4                       2.2    4.2      1.3
  SINCE DEC 1      6.4                       2.2    4.2      1.3
  SINCE JUL 1      6.4                       3.6    2.8     12.5

DEGREE DAYS
 HEATING
  TODAY           44                        36      8       16
  MONTH TO DATE  358                       342     16      256
  SINCE DEC 1    358                       342     16      256
  SINCE JUL 1   1187                      1598   -411     1229

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1157                       843    314      806
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED     9.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT SNOW


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    80          1200 AM
 LOWEST     65          1200 PM
 AVERAGE    73

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   36        61      1949
 MINIMUM TEMPERATURE (F)   22        -5      1972


SUNRISE AND SUNSET
DECEMBER 10 2016......SUNRISE   709 AM CST   SUNSET   420 PM CST
DECEMBER 11 2016......SUNRISE   710 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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