Climatological Report (Daily)
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000
CDUS43 KLOT 242236
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CST WED DEC 24 2014


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR DECEMBER 24 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         40    229 PM  64    1889  33      7       18
  MINIMUM         37    748 AM -25    1983  19     18       -2
  AVERAGE         39                        26     13        8

PRECIPITATION (IN)
  TODAY            T             2.61 1965   0.06  -0.06     0.01
  MONTH TO DATE    0.79                      1.83  -1.04     1.52
  SINCE DEC 1      0.79                      1.83  -1.04     1.52
  SINCE JAN 1     39.47                     36.47   3.00    41.67

SNOWFALL (IN)
  TODAY            0.0           7.1  1918   0.3   -0.3      0.1
  MONTH TO DATE    T                         6.0   -6.0      9.5
  SINCE DEC 1      T                         6.0   -6.0      9.5
  SINCE JUL 1      2.9                       7.4   -4.5     10.4

DEGREE DAYS
 HEATING
  TODAY           26                        39    -13       57
  MONTH TO DATE  760                       873   -113      988
  SINCE DEC 1    760                       873   -113      988
  SINCE JUL 1   2203                      2129     74     2271

 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    15   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     5.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85           300 AM
 LOWEST     79          1200 AM
 AVERAGE    82

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   32        64      1982
 MINIMUM TEMPERATURE (F)   18       -17      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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