Climatological Report (Daily)
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511
CDUS43 KLOT 140632
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT MON AUG 14 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 13 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         80   1257 PM  98    1944  82     -2       84
  MINIMUM         57    456 AM  51    2004  64     -7       72
                                      1982
  AVERAGE         69                        73     -4       78

PRECIPITATION (IN)
  YESTERDAY        T             2.86 1987   0.17  -0.17      T
  MONTH TO DATE    1.83                      2.12  -0.29     0.98
  SINCE JUN 1     12.95                      9.27   3.68    10.06
  SINCE JAN 1     31.06                     22.35   8.71    23.70

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      T                         0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    3                         0      3        0
  SINCE JUN 1      6                        52    -46       13
  SINCE JUL 1      3                         4     -1        0

 COOLING
  YESTERDAY        4                         8     -4       13
  MONTH TO DATE   82                       111    -29      170
  SINCE JUN 1    618                       559     59      718
  SINCE JAN 1    651                       613     38      792
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     E (90)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION    NE (60)
  AVERAGE WIND SPEED     4.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           500 AM
 LOWEST     36          1000 AM
 AVERAGE    61

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82        99      1944
 MINIMUM TEMPERATURE (F)   63        48      1964


SUNRISE AND SUNSET
AUGUST 14 2017........SUNRISE   559 AM CDT   SUNSET   753 PM CDT
AUGUST 15 2017........SUNRISE   600 AM CDT   SUNSET   751 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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