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

Tuesday, December 17, 2013

Chicago Weather O'Hare Data December 17 2013

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 17 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         33    400 PM  60    1977  34     -1       40
  MINIMUM         16    102 AM  -7    1951  20     -4       30
  AVERAGE         25                        27     -2       35

PRECIPITATION (IN)
  YESTERDAY        0.01          1.28 1921   0.06  -0.05     0.00
  MONTH TO DATE    0.70                      1.39  -0.69     0.84
  SINCE DEC 1      0.70                      1.39  -0.69     0.84
  SINCE JAN 1     40.85                     36.03   4.82    25.54

SNOWFALL (IN)
  YESTERDAY        0.2           4.6  1951   0.3   -0.1      0.0
  MONTH TO DATE    9.1                       4.1    5.0       T
  SINCE DEC 1      9.1                       4.1    5.0       T
  SINCE JUL 1     10.0                       5.6    4.4       T
  SNOW DEPTH       4

DEGREE DAYS
 HEATING
  YESTERDAY       40                        38      2       30
  MONTH TO DATE  712                       602    110      403
  SINCE DEC 1    712                       602    110      403
  SINCE JUL 1   1995                      1858    137     1653

 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    21   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    13.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           300 AM
 LOWEST     54           500 PM
 AVERAGE    73

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   34        62      1877
 MINIMUM TEMPERATURE (F)   20       -11      1983


SUNRISE AND SUNSET
DECEMBER 18 2013......SUNRISE   715 AM CST   SUNSET   422 PM CST
DECEMBER 19 2013......SUNRISE   715 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 180654
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1253 AM CST WED DEC 18 2013

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


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