Climatological Report (Daily)
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CDUS43 KLOT 080638
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1237 AM CST SUN JAN 8 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 7 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         18    249 PM  65    2008  31    -13       41
  MINIMUM          0    614 AM -16    1912  17    -17       34
  AVERAGE          9                        24    -15       38

PRECIPITATION (IN)
  YESTERDAY        0.00          0.65 1907   0.06  -0.06     0.01
  MONTH TO DATE    0.11                      0.44  -0.33     0.01
  SINCE DEC 1      1.88                      2.69  -0.81     4.88
  SINCE JAN 1      0.11                      0.44  -0.33     0.01

SNOWFALL (IN)
  YESTERDAY        0.0           3.9  2010   0.4   -0.4      0.0
  MONTH TO DATE    T                         2.3   -2.3       T
  SINCE DEC 1     17.7                      10.5    7.2      4.5
  SINCE JUL 1     17.7                      11.9    5.8     15.7
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       56                        41     15       27
  MONTH TO DATE  329                       287     42      259
  SINCE DEC 1   1560                      1442    118     1059
  SINCE JUL 1   2389                      2698   -309     2032

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED    10.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    79           600 AM
 LOWEST     43           300 PM
 AVERAGE    61

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        63      1965
 MINIMUM TEMPERATURE (F)   17       -11      1942
                                             1875


SUNRISE AND SUNSET
JANUARY  8 2017.......SUNRISE   719 AM CST   SUNSET   438 PM CST
JANUARY  9 2017.......SUNRISE   719 AM CST   SUNSET   439 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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