Climatological Report (Daily)
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863
CDUS43 KLOT 070639
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1238 AM CST WED DEC 7 2016


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 6 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         41   1138 AM  65    1980  38      3       47
                                      1951
  MINIMUM         25    414 AM   0    2007  24      1       27
                                      1972
                                      1885
  AVERAGE         33                        31      2       37

PRECIPITATION (IN)
  YESTERDAY        0.00          1.12 1998   0.08  -0.08     0.00
  MONTH TO DATE    0.50                      0.54  -0.04     0.39
  SINCE DEC 1      0.50                      0.54  -0.04     0.39
  SINCE JAN 1     34.70                     35.18  -0.48    35.37

SNOWFALL (IN)
  YESTERDAY        0.0           5.6  1950   0.3   -0.3      0.0
  MONTH TO DATE    6.4                       1.3    5.1      1.3
  SINCE DEC 1      6.4                       1.3    5.1      1.3
  SINCE JUL 1      6.4                       2.7    3.7     12.5
  SNOW DEPTH       2

DEGREE DAYS
 HEATING
  YESTERDAY       32                        34     -2       28
  MONTH TO DATE  187                       200    -13      167
  SINCE DEC 1    187                       200    -13      167
  SINCE JUL 1   1016                      1456   -440     1140

 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    22   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED     9.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  FOG W/VISIBILITY <= 1/4 MILE
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           400 AM
 LOWEST     69           500 PM
 AVERAGE    85

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   37        64      1916
 MINIMUM TEMPERATURE (F)   23        -6      1882


SUNRISE AND SUNSET
DECEMBER  7 2016......SUNRISE   706 AM CST   SUNSET   420 PM CST
DECEMBER  8 2016......SUNRISE   707 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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