Climatological Report (Daily)
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CDUS43 KLOT 062140
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
438 PM CDT WED SEP 6 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR SEPTEMBER 6 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         67    239 PM  97    1960  78    -11       91
                                      1954
  MINIMUM         49    528 AM  42    1984  59    -10       75
  AVERAGE         58                        68    -10       83

PRECIPITATION (IN)
  TODAY            0.00          1.53 1894   0.12  -0.12      T
  MONTH TO DATE    0.25                      0.70  -0.45      T
  SINCE SEP 1      0.25                      0.70  -0.45      T
  SINCE JAN 1     31.99                     25.83   6.16    26.98

SNOWFALL (IN)
  TODAY            0.0           0.0    MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE SEP 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      T                         0.0    0.0      0.0

DEGREE DAYS
 HEATING
  TODAY            7                         1      6        0
  MONTH TO DATE   17                         6     11        0
  SINCE SEP 1     17                         6     11        0
  SINCE JUL 1     22                        19      3        0

 COOLING
  TODAY            0                         5     -5       18
  MONTH TO DATE   13                        32    -19       40
  SINCE SEP 1     13                        32    -19       40
  SINCE JAN 1    796                       772     24     1005
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    11.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           400 AM
 LOWEST     40           200 PM
 AVERAGE    63

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78       100      1960
                                             1939
 MINIMUM TEMPERATURE (F)   58        42      1986


SUNRISE AND SUNSET
SEPTEMBER  6 2017.....SUNRISE   623 AM CDT   SUNSET   716 PM CDT
SEPTEMBER  7 2017.....SUNRISE   624 AM CDT   SUNSET   714 PM CDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$





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