Climatological Report (Daily)
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CDUS43 KLOT 040643
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1242 AM CST SUN DEC 4 2016


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 3 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         34    331 PM  71    1970  39     -5       35
  MINIMUM         29    605 PM  -5    1940  25      4       30
  AVERAGE         32                        32      0       33

PRECIPITATION (IN)
  YESTERDAY        0.00          1.12 1873   0.09  -0.09     0.00
  MONTH TO DATE    T                         0.28  -0.28     0.39
  SINCE DEC 1      T                         0.28  -0.28     0.39
  SINCE JAN 1     34.20                     34.92  -0.72    35.37

SNOWFALL (IN)
  YESTERDAY        0.0           4.0  1893   0.2   -0.2      0.0
  MONTH TO DATE    T                         0.6   -0.6      1.3
  SINCE DEC 1      T                         0.6   -0.6      1.3
  SINCE JUL 1      T                         2.0   -2.0     12.5
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       33                        33      0       32
  MONTH TO DATE   88                        98    -10       87
  SINCE DEC 1     88                        98    -10       87
  SINCE JUL 1    917                      1354   -437     1060

 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    14   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     5.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85          1000 PM
 LOWEST     63           600 AM
 AVERAGE    74

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   39        66      1998
 MINIMUM TEMPERATURE (F)   24         0      1893


SUNRISE AND SUNSET
DECEMBER  4 2016......SUNRISE   704 AM CST   SUNSET   420 PM CST
DECEMBER  5 2016......SUNRISE   704 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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