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Thursday, December 12, 2013

Chicago Weather O'Hare Data December 12 2013

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 12 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         19        MM  61    1877  35    -16       46
  MINIMUM         -3        MM  -8    2000  21    -24       28
  AVERAGE          8                        28    -20       37

PRECIPITATION (IN)
  YESTERDAY        0.00          1.76 1972   0.07  -0.07     0.00
  MONTH TO DATE    0.40                      1.04  -0.64     0.50
  SINCE DEC 1      0.40                      1.04  -0.64     0.50
  SINCE JAN 1     40.55                     35.68   4.87    25.20

SNOWFALL (IN)
  YESTERDAY        0.0          11.0  1903   0.3   -0.3      0.0
  MONTH TO DATE    4.0                       2.7    1.3       T
  SINCE DEC 1      4.0                       2.7    1.3       T
  SINCE JUL 1      4.9                       4.2    0.7       T
  SNOW DEPTH       3

DEGREE DAYS
 HEATING
  YESTERDAY       57                        37     20       28
  MONTH TO DATE  492                       415     77      280
  SINCE DEC 1    492                       415     77      280
  SINCE JUL 1   1775                      1671    104     1530

 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    20   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED    11.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    79           600 AM
 LOWEST     53          1200 PM
 AVERAGE    66

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        67      1975
 MINIMUM TEMPERATURE (F)   21       -13      1903


SUNRISE AND SUNSET
DECEMBER 13 2013......SUNRISE   711 AM CST   SUNSET   421 PM CST
DECEMBER 14 2013......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.

000
CDUS43 KLOT 130636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1235 AM CST FRI DEC 13 2013

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


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