Climatological Report (Daily)
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000
CDUS43 KLOT 202235
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CST FRI JAN 20 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR JANUARY 20 2017...
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         42    335 PM  63    1906  31     11       23
  MINIMUM         38    806 AM -27    1985  16     22       12
  AVERAGE         40                        23     17       18

PRECIPITATION (IN)
  TODAY            0.16          1.13 1898   0.06   0.10     0.05
  MONTH TO DATE    2.71                      1.18   1.53     0.65
  SINCE DEC 1      4.48                      3.43   1.05     5.52
  SINCE JAN 1      2.71                      1.18   1.53     0.65

SNOWFALL (IN)
  TODAY            0.0           8.0  1886   0.4   -0.4      0.9
  MONTH TO DATE    0.4                       6.8   -6.4      5.9
  SINCE DEC 1     18.1                      15.0    3.1     10.4
  SINCE JUL 1     18.1                      16.4    1.7     21.6

DEGREE DAYS
 HEATING
  TODAY           25                        42    -17       47
  MONTH TO DATE  783                       826    -43      860
  SINCE DEC 1   2014                      1981     33     1660
  SINCE JUL 1   2843                      3237   -394     2633

 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    13   HIGHEST WIND DIRECTION    NE (60)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    NE (50)
  AVERAGE WIND SPEED     5.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     92           300 AM
 AVERAGE    96

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        62      1906
 MINIMUM TEMPERATURE (F)   16       -22      1984


SUNRISE AND SUNSET
JANUARY 20 2017.......SUNRISE   714 AM CST   SUNSET   452 PM CST
JANUARY 21 2017.......SUNRISE   713 AM CST   SUNSET   453 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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