Climatological Report (Daily)
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CDUS43 KLOT 172147
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
444 PM CDT WED SEP 17 2014


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR SEPTEMBER 17 2014...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         70    148 PM  93    1955  75     -5       71
  MINIMUM         48    556 AM  37    1984  54     -6       49
  AVERAGE         59                        64     -5       60

PRECIPITATION (IN)
  TODAY            0.00          2.42 1927   0.10  -0.10     0.00
  MONTH TO DATE    2.58                      1.86   0.72     0.80
  SINCE SEP 1      2.58                      1.86   0.72     0.80
  SINCE JAN 1     34.66                     26.99   7.67    33.17

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      0.0                       0.0    0.0      0.0

DEGREE DAYS
 HEATING
  TODAY            6                         3      3        5
  MONTH TO DATE   76                        32     44       28
  SINCE SEP 1     76                        32     44       28
  SINCE JUL 1     81                        45     36       39

 COOLING
  TODAY            0                         3     -3        0
  MONTH TO DATE   68                        72     -4      116
  SINCE SEP 1     68                        72     -4      116
  SINCE JAN 1    783                       812    -29      881
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED     2.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           600 AM
 LOWEST     40           100 PM
 AVERAGE    63

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        94      1955
 MINIMUM TEMPERATURE (F)   53        40      1903
                                             1901
                                             1889


SUNRISE AND SUNSET
SEPTEMBER 17 2014.....SUNRISE   634 AM CDT   SUNSET   658 PM CDT
SEPTEMBER 18 2014.....SUNRISE   635 AM CDT   SUNSET   656 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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