Climatological Report (Daily)
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CDUS43 KLOT 200635
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT THU AUG 20 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 19 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         75    221 PM  99    1983  82     -7       86
                                      1947
  MINIMUM         62   1159 PM  51    1992  63     -1       69
  AVERAGE         69                        72     -3       78

PRECIPITATION (IN)
  YESTERDAY        T             2.07 1921   0.16  -0.16     0.09
  MONTH TO DATE    1.42                      3.14  -1.72     3.92
  SINCE JUN 1     11.39                     10.29   1.10    13.87
  SINCE JAN 1     22.88                     23.37  -0.49    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        4                         8     -4       13
  MONTH TO DATE  192                       159     33      133
  SINCE JUN 1    556                       607    -51      510
  SINCE JAN 1    609                       661    -52      571
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED    13.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           200 AM
 LOWEST     46           100 PM
 AVERAGE    72

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82        98      1947
 MINIMUM TEMPERATURE (F)   63        47      1950


SUNRISE AND SUNSET
AUGUST 20 2015........SUNRISE   605 AM CDT   SUNSET   745 PM CDT
AUGUST 21 2015........SUNRISE   606 AM CDT   SUNSET   743 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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