Climatological Report (Daily)
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889
CDUS43 KLOT 200644
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1243 AM CST FRI JAN 20 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 19 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         42    250 PM  57    1933  31     11       17
  MINIMUM         30   1237 AM -23    1985  16     14        0
  AVERAGE         36                        23     13        9

PRECIPITATION (IN)
  YESTERDAY        0.46          1.72 1907   0.05   0.41     0.00
  MONTH TO DATE    2.55                      1.12   1.43     0.60
  SINCE DEC 1      4.32                      3.37   0.95     5.47
  SINCE JAN 1      2.55                      1.12   1.43     0.60

SNOWFALL (IN)
  YESTERDAY        0.0           8.8  1963   0.3   -0.3      0.0
  MONTH TO DATE    0.4                       6.4   -6.0      5.0
  SINCE DEC 1     18.1                      14.6    3.5      9.5
  SINCE JUL 1     18.1                      16.0    2.1     20.7
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       29                        42    -13       56
  MONTH TO DATE  758                       784    -26      813
  SINCE DEC 1   1989                      1939     50     1613
  SINCE JUL 1   2818                      3195   -377     2586

 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    12   HIGHEST WIND DIRECTION     E (80)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION     E (80)
  AVERAGE WIND SPEED     6.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  RAIN
  LIGHT RAIN
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           200 AM
 LOWEST     79           300 PM
 AVERAGE    90

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        63      1906
 MINIMUM TEMPERATURE (F)   16       -27      1985


SUNRISE AND SUNSET
JANUARY 20 2017.......SUNRISE   714 AM CST   SUNSET   452 PM CST
JANUARY 21 2017.......SUNRISE   713 AM CST   SUNSET   453 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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