Climatological Report (Daily)
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000
CDUS43 KLOT 112237
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CST THU JAN 11 2018


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR JANUARY 11 2018...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         59    342 PM  61    1880  31     28       43
  MINIMUM         53    359 PM -11    1977  16     37       25
                                      1888
                                      1887
  AVERAGE         56                        24     32       34

PRECIPITATION (IN)
  TODAY            0.30          0.64 1918   0.06   0.24     0.33
  MONTH TO DATE    0.34                      0.68  -0.34     0.66
  SINCE DEC 1      0.93                      2.93  -2.00     2.43
  SINCE JAN 1      0.34                      0.68  -0.34     0.66

SNOWFALL (IN)
  TODAY            0.0           5.9  2011   0.3   -0.3      0.0
                                      1918
  MONTH TO DATE    0.1                       3.6   -3.5      0.2
  SINCE DEC 1      5.4                      11.8   -6.4     17.9
  SINCE JUL 1      5.5                      13.2   -7.7     17.9

DEGREE DAYS
 HEATING
  TODAY            9                        41    -32       31
  MONTH TO DATE  503                       451     52      480
  SINCE DEC 1   1668                      1606     62     1711
  SINCE JUL 1   2711                      2862   -151     2540

 COOLING
  TODAY            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    28   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED    17.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           900 AM
 LOWEST     80           600 AM
 AVERAGE    87

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        62      2005
                                             1890
 MINIMUM TEMPERATURE (F)   16       -14      1918


SUNRISE AND SUNSET
JANUARY 11 2018.......SUNRISE   719 AM CST   SUNSET   441 PM CST
JANUARY 12 2018.......SUNRISE   718 AM CST   SUNSET   442 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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