Climatological Report (Daily)
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CDUS43 KLOT 170716
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
215 AM CDT MON AUG 17 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 16 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         89    215 PM  98    1988  82      7       82
                                      1983
  MINIMUM         71    542 AM  48    2004  63      8       62
  AVERAGE         80                        73      7       72

PRECIPITATION (IN)
  YESTERDAY        0.00          3.79 1968   0.17  -0.17     0.00
  MONTH TO DATE    0.90                      2.64  -1.74     3.83
  SINCE JUN 1     10.87                      9.79   1.08    13.78
  SINCE JAN 1     22.36                     22.87  -0.51    28.61

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       15                         8      7        7
  MONTH TO DATE  165                       135     30      108
  SINCE JUN 1    529                       583    -54      485
  SINCE JAN 1    582                       637    -55      546
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     6.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           200 AM
 LOWEST     46           400 PM
 AVERAGE    70

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82        98      1988
                                             1947
 MINIMUM TEMPERATURE (F)   63        48      1976


SUNRISE AND SUNSET
AUGUST 17 2015........SUNRISE   601 AM CDT   SUNSET   749 PM CDT
AUGUST 18 2015........SUNRISE   602 AM CDT   SUNSET   748 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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