Climatological Report (Daily)
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000
CDUS43 KLOT 132236
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CST SAT DEC 13 2014


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR DECEMBER 13 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         45    359 PM  67    1975  35     10       32
  MINIMUM         35   1224 AM -13    1903  21     14       13
  AVERAGE         40                        28     12       23

PRECIPITATION (IN)
  TODAY            0.00          1.14 1928   0.08  -0.08     0.01
  MONTH TO DATE    0.20                      1.12  -0.92     0.41
  SINCE DEC 1      0.20                      1.12  -0.92     0.41
  SINCE JAN 1     38.88                     35.76   3.12    40.56

SNOWFALL (IN)
  TODAY            0.0           6.0  2000   0.2   -0.2      0.2
                                      1885
  MONTH TO DATE    T                         2.9   -2.9      4.2
  SINCE DEC 1      T                         2.9   -2.9      4.2
  SINCE JUL 1      2.9                       4.3   -1.4      5.1

DEGREE DAYS
 HEATING
  TODAY           25                        37    -12       42
  MONTH TO DATE  438                       452    -14      534
  SINCE DEC 1    438                       452    -14      534
  SINCE JUL 1   1881                      1708    173     1817

 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     W (260)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED     8.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          1100 AM
 LOWEST     79           800 AM
 AVERAGE    86

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        66      1975
 MINIMUM TEMPERATURE (F)   21        -9      1901


SUNRISE AND SUNSET
DECEMBER 13 2014......SUNRISE   711 AM CST   SUNSET   421 PM CST
DECEMBER 14 2014......SUNRISE   712 AM CST   SUNSET   421 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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