Climatological Report (Daily)
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000
CDUS43 KLOT 222235
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CST MON DEC 22 2014


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR DECEMBER 22 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         37    359 PM  57    1957  33      4       34
                                      1875
  MINIMUM         28    346 AM -21    1872  19      9       24
  AVERAGE         33                        26      7       29

PRECIPITATION (IN)
  TODAY            0.11          0.90 2006   0.06   0.05     0.20
  MONTH TO DATE    0.39                      1.71  -1.32     1.51
  SINCE DEC 1      0.39                      1.71  -1.32     1.51
  SINCE JAN 1     39.07                     36.35   2.72    41.66

SNOWFALL (IN)
  TODAY            T             3.6  1953   0.3   -0.3       T
  MONTH TO DATE    T                         5.5   -5.5      9.3
  SINCE DEC 1      T                         5.5   -5.5      9.3
  SINCE JUL 1      2.9                       6.9   -4.0     10.2

DEGREE DAYS
 HEATING
  TODAY           32                        39     -7       36
  MONTH TO DATE  714                       795    -81      879
  SINCE DEC 1    714                       795    -81      879
  SINCE JUL 1   2157                      2051    106     2162

 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    14   HIGHEST WIND DIRECTION     E (100)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     E (100)
  AVERAGE WIND SPEED     9.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN
  SLEET
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           200 PM
 LOWEST     70          1000 AM
 AVERAGE    81

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   33        62      1982
 MINIMUM TEMPERATURE (F)   19       -21      1983


SUNRISE AND SUNSET
DECEMBER 22 2014......SUNRISE   717 AM CST   SUNSET   424 PM CST
DECEMBER 23 2014......SUNRISE   717 AM CST   SUNSET   424 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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