Climatological Report (Daily)
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CDUS43 KLOT 162239
CLIMDW


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
437 PM CST SAT DEC 16 2017


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

...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR DECEMBER 16 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1928 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE
                VALUE   (LST)  VALUE       VALUE  FROM
                                                  NORMAL
...............................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         48    300 PM  63    1984  35     13
  MINIMUM         34    757 AM -12    1951  22     12
                                      1932
  AVERAGE         41                        29     12

PRECIPITATION (IN)
  TODAY            0.00          0.47 1928   0.08  -0.08
  MONTH TO DATE    0.05                      1.44  -1.39
  SINCE DEC 1      0.05                      1.44  -1.39
  SINCE JAN 1     41.33                     37.96   3.37

DEGREE DAYS
 HEATING
  TODAY           24                        36    -12
  MONTH TO DATE  495                       543    -48
  SINCE DEC 1    495                       543    -48
  SINCE JUL 1   1478                      1678   -200

 COOLING
  TODAY            0                         0      0
  MONTH TO DATE    0                         0      0
  SINCE DEC 1      0                         0      0
  SINCE JAN 1   1151                      1045    106
...............................................................


WIND (MPH)
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION  SW (220)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     9.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


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


THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        60      1977
 MINIMUM TEMPERATURE (F)   22        -7      1951


SUNRISE AND SUNSET
DECEMBER 16 2017......SUNRISE   712 AM CST   SUNSET   421 PM CST
DECEMBER 17 2017......SUNRISE   713 AM CST   SUNSET   422 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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