Climatological Report (Daily)
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CDUS43 KLOT 210633
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT FRI AUG 21 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 20 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         74    450 PM  98    1947  82     -8       86
  MINIMUM         59    712 AM  47    1950  63     -4       66
  AVERAGE         67                        72     -5       76

PRECIPITATION (IN)
  YESTERDAY        0.00          1.47 1951   0.16  -0.16     0.00
  MONTH TO DATE    1.42                      3.30  -1.88     3.92
  SINCE JUN 1     11.39                     10.45   0.94    13.87
  SINCE JAN 1     22.88                     23.53  -0.65    28.70

SNOWFALL (IN)
  YESTERDAY        0.0           0.0    MM   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    0                         0      0        0
  SINCE JUN 1     52                        52      0       17
  SINCE JUL 1     13                         4      9        5

 COOLING
  YESTERDAY        2                         7     -5       11
  MONTH TO DATE  194                       166     28      144
  SINCE JUN 1    558                       614    -56      521
  SINCE JAN 1    611                       668    -57      582
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    13.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           400 AM
 LOWEST     41           300 PM
 AVERAGE    63

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82        99      1955
 MINIMUM TEMPERATURE (F)   63        46      1950


SUNRISE AND SUNSET
AUGUST 21 2015........SUNRISE   606 AM CDT   SUNSET   743 PM CDT
AUGUST 22 2015........SUNRISE   607 AM CDT   SUNSET   742 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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