Climatological Report (Daily)
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000
CDUS43 KLOT 090635
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1234 AM CST FRI DEC 9 2016


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 8 2016...

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)
 YESTERDAY
  MAXIMUM         24    838 PM  64    1946  37    -13       47
  MINIMUM         17    934 AM  -7    1882  23     -6       38
  AVERAGE         21                        30     -9       43

PRECIPITATION (IN)
  YESTERDAY        0.01          1.21 1885   0.09  -0.08     0.00
  MONTH TO DATE    0.51                      0.72  -0.21     0.39
  SINCE DEC 1      0.51                      0.72  -0.21     0.39
  SINCE JAN 1     34.71                     35.36  -0.65    35.37

SNOWFALL (IN)
  YESTERDAY        T             6.9  1977   0.2   -0.2      0.0
  MONTH TO DATE    6.4                       1.7    4.7      1.3
  SINCE DEC 1      6.4                       1.7    4.7      1.3
  SINCE JUL 1      6.4                       3.1    3.3     12.5
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       44                        35      9       22
  MONTH TO DATE  271                       270      1      221
  SINCE DEC 1    271                       270      1      221
  SINCE JUL 1   1100                      1526   -426     1194

 COOLING
  YESTERDAY        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    26   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    34   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED    16.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    77          1100 PM
 LOWEST     62           100 AM
 AVERAGE    70

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   37        62      1879
 MINIMUM TEMPERATURE (F)   22       -14      1876


SUNRISE AND SUNSET
DECEMBER  9 2016......SUNRISE   708 AM CST   SUNSET   420 PM CST
DECEMBER 10 2016......SUNRISE   709 AM CST   SUNSET   420 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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