Climatological Report (Daily)
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000
CDUS43 KLOT 240634
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1234 AM CST WED DEC 24 2014


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 23 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         48    154 PM  62    1982  33     15       26
  MINIMUM         38   1005 PM -21    1983  19     19       -1
  AVERAGE         43                        26     17       13

PRECIPITATION (IN)
  YESTERDAY        0.19          2.50 1871   0.06   0.13      T
  MONTH TO DATE    0.79                      1.77  -0.98     1.51
  SINCE DEC 1      0.79                      1.77  -0.98     1.51
  SINCE JAN 1     39.47                     36.41   3.06    41.66

SNOWFALL (IN)
  YESTERDAY        0.0          10.2  1961   0.2   -0.2      0.1
  MONTH TO DATE    T                         5.7   -5.7      9.4
  SINCE DEC 1      T                         5.7   -5.7      9.4
  SINCE JUL 1      2.9                       7.1   -4.2     10.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       22                        39    -17       52
  MONTH TO DATE  734                       834   -100      931
  SINCE DEC 1    734                       834   -100      931
  SINCE JUL 1   2177                      2090     87     2214

 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    22   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED    10.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           400 AM
 LOWEST     61           200 PM
 AVERAGE    81

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   33        64      1889
 MINIMUM TEMPERATURE (F)   19       -25      1983


SUNRISE AND SUNSET
DECEMBER 24 2014......SUNRISE   718 AM CST   SUNSET   425 PM CST
DECEMBER 25 2014......SUNRISE   718 AM CST   SUNSET   426 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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