Climatological Report (Daily)
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445
CDUS43 KLOT 152254
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
454 PM CST MON JAN 15 2018


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR JANUARY 15 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         24   1225 PM  60    1949  31     -7       36
  MINIMUM         16    359 PM -19    1979  16      0       20
  AVERAGE         20                        24     -4       28

PRECIPITATION (IN)
  TODAY            0.12          0.81 1877   0.06   0.06     0.00
  MONTH TO DATE    0.60                      0.91  -0.31     0.71
  SINCE DEC 1      1.19                      3.16  -1.97     2.48
  SINCE JAN 1      0.60                      0.91  -0.31     0.71

SNOWFALL (IN)
  TODAY            1.7           4.2  1997   0.4    1.3      0.0
  MONTH TO DATE    2.6                       5.0   -2.4      0.4
  SINCE DEC 1      7.9                      13.2   -5.3     18.1
  SINCE JUL 1      8.0                      14.6   -6.6     18.1

DEGREE DAYS
 HEATING
  TODAY           45                        42      3       37
  MONTH TO DATE  715                       616     99      638
  SINCE DEC 1   1880                      1771    109     1869
  SINCE JUL 1   2923                      3027   -104     2698

 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    17   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED    10.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    88          1200 PM
 LOWEST     73           200 PM
 AVERAGE    81

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        57      1990
 MINIMUM TEMPERATURE (F)   16       -25      1982


SUNRISE AND SUNSET
JANUARY 15 2018.......SUNRISE   717 AM CST   SUNSET   445 PM CST
JANUARY 16 2018.......SUNRISE   717 AM CST   SUNSET   447 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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