Climatological Report (Daily)
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000
CDUS43 KLOT 190639
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1237 AM CST THU JAN 19 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 18 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         36    819 PM  61    1996  31      5        7
  MINIMUM         30   1155 PM -21    1994  16     14       -4
  AVERAGE         33                        23     10        2

PRECIPITATION (IN)
  YESTERDAY        T             1.51 1876   0.05  -0.05     0.00
  MONTH TO DATE    2.09                      1.07   1.02     0.60
  SINCE DEC 1      3.86                      3.32   0.54     5.47
  SINCE JAN 1      2.09                      1.07   1.02     0.60

SNOWFALL (IN)
  YESTERDAY        0.0           5.3  1943   0.4   -0.4      0.0
  MONTH TO DATE    0.4                       6.1   -5.7      5.0
  SINCE DEC 1     18.1                      14.3    3.8      9.5
  SINCE JUL 1     18.1                      15.7    2.4     20.7
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       32                        42    -10       63
  MONTH TO DATE  729                       742    -13      757
  SINCE DEC 1   1960                      1897     63     1557
  SINCE JUL 1   2789                      3153   -364     2530

 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    16   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     9.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           400 AM
 LOWEST     82           500 PM
 AVERAGE    91

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        57      1933
 MINIMUM TEMPERATURE (F)   16       -23      1985


SUNRISE AND SUNSET
JANUARY 19 2017.......SUNRISE   715 AM CST   SUNSET   451 PM CST
JANUARY 20 2017.......SUNRISE   714 AM CST   SUNSET   452 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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