Climatological Report (Daily)
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000
CDUS43 KLOT 140636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1236 AM CST SUN DEC 14 2014


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 13 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         47   1159 PM  67    1975  35     12       32
  MINIMUM         35   1224 AM -13    1903  21     14       13
  AVERAGE         41                        28     13       23

PRECIPITATION (IN)
  YESTERDAY        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)
  YESTERDAY        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
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       24                        37    -13       42
  MONTH TO DATE  437                       452    -15      534
  SINCE DEC 1    437                       452    -15      534
  SINCE JUL 1   1880                      1708    172     1817

 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     W (260)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED     7.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


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

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


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


SUNRISE AND SUNSET
DECEMBER 14 2014......SUNRISE   712 AM CST   SUNSET   421 PM CST
DECEMBER 15 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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