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Weather conditions on bar directly above are near Lakefront. Weather conditions with Moon are O'Hare (official).

Wednesday, December 18, 2013

Chicago Weather O'Hare Data December 18 2013

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 18 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2013


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         35   1159 PM  62    1877  34      1       41
  MINIMUM         15    634 AM -11    1983  20     -5       31
  AVERAGE         25                        27     -2       36

PRECIPITATION (IN)
  YESTERDAY        0.00          1.41 2002   0.06  -0.06      T
  MONTH TO DATE    0.70                      1.45  -0.75     0.84
  SINCE DEC 1      0.70                      1.45  -0.75     0.84
  SINCE JAN 1     40.85                     36.09   4.76    25.54

SNOWFALL (IN)
  YESTERDAY        0.0           6.7  1929   0.2   -0.2       T
  MONTH TO DATE    9.3                       4.3    5.0       T
  SINCE DEC 1      9.3                       4.3    5.0       T
  SINCE JUL 1     10.2                       5.8    4.4       T
  SNOW DEPTH       4

DEGREE DAYS
 HEATING
  YESTERDAY       40                        38      2       29
  MONTH TO DATE  752                       640    112      432
  SINCE DEC 1    752                       640    112      432
  SINCE JUL 1   2035                      1896    139     1682

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    933                       843     90     1324
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED    12.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    80           600 AM
 LOWEST     39           400 PM
 AVERAGE    60

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   34        64      1877
 MINIMUM TEMPERATURE (F)   20       -14      1983


SUNRISE AND SUNSET
DECEMBER 19 2013......SUNRISE   715 AM CST   SUNSET   422 PM CST
DECEMBER 20 2013......SUNRISE   716 AM CST   SUNSET   423 PM CST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.


000
CDUS43 KLOT 190634
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1233 AM CST THU DEC 19 2013

CHICAGO O'HARE CURRENT AND HISTORY (3-DAY) ...


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