Climatological Report (Daily)
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000
CDUS43 KLOT 162236
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CST TUE JAN 16 2018


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR JANUARY 16 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         26    249 PM  57    1990  31     -5       37
  MINIMUM          9    426 AM -25    1982  16     -7       30
  AVERAGE         18                        24     -6       34

PRECIPITATION (IN)
  TODAY            0.01          0.90 2017   0.05  -0.04     0.90
  MONTH TO DATE    0.63                      0.96  -0.33     1.61
  SINCE DEC 1      1.22                      3.21  -1.99     3.38
  SINCE JAN 1      0.63                      0.96  -0.33     1.61

SNOWFALL (IN)
  TODAY            0.6           6.4  1885   0.3    0.3       T
  MONTH TO DATE    3.8                       5.3   -1.5      0.4
  SINCE DEC 1      9.1                      13.5   -4.4     18.1
  SINCE JUL 1      9.2                      14.9   -5.7     18.1

DEGREE DAYS
 HEATING
  TODAY           47                        42      5       31
  MONTH TO DATE  765                       658    107      669
  SINCE DEC 1   1930                      1813    117     1900
  SINCE JUL 1   2973                      3069    -96     2729

 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    18   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    12.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT SNOW
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           600 AM
 LOWEST     55           400 PM
 AVERAGE    70

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        60      1894
 MINIMUM TEMPERATURE (F)   16       -23      1982


SUNRISE AND SUNSET
JANUARY 16 2018.......SUNRISE   717 AM CST   SUNSET   447 PM CST
JANUARY 17 2018.......SUNRISE   716 AM CST   SUNSET   448 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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