Climatological Report (Daily)
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000
CDUS43 KLOT 012241
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
438 PM CST MON JAN 1 2018


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR JANUARY 1 2018...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM          1    333 PM  65    1876  32    -31       40
  MINIMUM         -9    759 AM -10    1969  17    -26       17
  AVERAGE         -4                        24    -28       29

PRECIPITATION (IN)
  TODAY            0.00          1.33 1948   0.06  -0.06     0.00
  MONTH TO DATE    0.00                      0.06  -0.06     0.00
  SINCE DEC 1      0.59                      2.31  -1.72     1.77
  SINCE JAN 1      0.00                      0.06  -0.06     0.00

SNOWFALL (IN)
  TODAY            0.0           5.0  1918   0.3   -0.3      0.0
  MONTH TO DATE    0.0                       0.3   -0.3      0.0
  SINCE DEC 1      5.3                       8.5   -3.2     17.7
  SINCE JUL 1      5.4                       9.9   -4.5     17.7

DEGREE DAYS
 HEATING
  TODAY           69                        41     28       36
  MONTH TO DATE   69                        41     28       36
  SINCE DEC 1   1234                      1196     38     1267
  SINCE JUL 1   2277                      2452   -175     2096

 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    NW (310)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED    12.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    72           800 AM
 LOWEST     51          1200 AM
 AVERAGE    62

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        61      2004
 MINIMUM TEMPERATURE (F)   17       -16      1879


SUNRISE AND SUNSET
JANUARY  1 2018.......SUNRISE   720 AM CST   SUNSET   431 PM CST
JANUARY  2 2018.......SUNRISE   720 AM CST   SUNSET   432 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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