Climatological Report (Daily)
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000
CDUS43 KLOT 180643
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
141 AM CDT SAT JUL 18 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 17 2015...

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)
 YESTERDAY
  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)
  YESTERDAY        0.06          3.04 1969   0.11  -0.05     0.00
  MONTH TO DATE    2.31                      1.88   0.43     2.10
  SINCE JUN 1      9.43                      5.33   4.10     9.91
  SINCE JAN 1     20.92                     18.41   2.51    24.74

SNOWFALL (IN)
  YESTERDAY        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
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        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
  YESTERDAY       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    23   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED     8.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  RAIN
  LIGHT RAIN
  FOG


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

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


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


SUNRISE AND SUNSET
JULY 18 2015..........SUNRISE   532 AM CDT   SUNSET   823 PM CDT
JULY 19 2015..........SUNRISE   533 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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