Climatological Report (Daily)
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CDUS43 KLOT 172134
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT FRI JUL 17 2015


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR JULY 17 2015...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         92    243 PM 100    1942  84      8       78
                                      1887
  MINIMUM         71    500 AM  51    1985  64      7       54
  AVERAGE         82                        74      8       66

PRECIPITATION (IN)
  TODAY            0.00          3.04 1969   0.11  -0.11     0.00
  MONTH TO DATE    2.25                      1.88   0.37     2.10
  SINCE JUN 1      9.37                      5.33   4.04     9.91
  SINCE JAN 1     20.86                     18.41   2.45    24.74

SNOWFALL (IN)
  TODAY            0.0           T    2003   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE JUN 1      T                         0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE   13                         0     13        5
  SINCE JUN 1     52                        48      4       17
  SINCE JUL 1     13                         0     13        5

 COOLING
  TODAY           17                         9      8        1
  MONTH TO DATE   88                       152    -64       98
  SINCE JUN 1    206                       317   -111      296
  SINCE JAN 1    259                       371   -112      357
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     8.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           400 AM
 LOWEST     52           200 PM
 AVERAGE    76

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84       100      1946
 MINIMUM TEMPERATURE (F)   64        53      1979


SUNRISE AND SUNSET
JULY 17 2015..........SUNRISE   531 AM CDT   SUNSET   824 PM CDT
JULY 18 2015..........SUNRISE   532 AM CDT   SUNSET   823 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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