Climatological Report (Daily)
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000
CDUS43 KLOT 272235
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CST TUE DEC 27 2016


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR DECEMBER 27 2016...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         28    359 PM  61    2008  32     -4       40
                                      1982
  MINIMUM         24    432 AM -10    1950  18      6       35
                                      1886
  AVERAGE         26                        25      1       38

PRECIPITATION (IN)
  TODAY            0.00          1.74 2008   0.06  -0.06     0.14
  MONTH TO DATE    1.77                      2.01  -0.24     3.31
  SINCE DEC 1      1.77                      2.01  -0.24     3.31
  SINCE JAN 1     35.97                     36.65  -0.68    38.29

SNOWFALL (IN)
  TODAY            0.0          10.1  1894   0.3   -0.3       T
  MONTH TO DATE   17.7                       6.9   10.8      1.5
  SINCE DEC 1     17.7                       6.9   10.8      1.5
  SINCE JUL 1     17.7                       8.3    9.4     12.7

DEGREE DAYS
 HEATING
  TODAY           39                        40     -1       27
  MONTH TO DATE 1097                       993    104      662
  SINCE DEC 1   1097                       993    104      662
  SINCE JUL 1   1926                      2249   -323     1635

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1157                       843    314      806
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED    14.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    75          1000 AM
 LOWEST     63          1200 AM
 AVERAGE    69

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   32        69      1984
 MINIMUM TEMPERATURE (F)   18       -13      1924


SUNRISE AND SUNSET
DECEMBER 27 2016......SUNRISE   719 AM CST   SUNSET   427 PM CST
DECEMBER 28 2016......SUNRISE   719 AM CST   SUNSET   428 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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