Climatological Report (Daily)
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CDUS43 KLOT 040655
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
155 AM CDT FRI AUG 4 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 3 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         84   1104 AM  98    1964  83      1       90
                                      1944
                                      1930
  MINIMUM         61   1159 PM  48    1894  64     -3       69
  AVERAGE         73                        74     -1       80

PRECIPITATION (IN)
  YESTERDAY        0.88          2.10 1915   0.16   0.72     0.00
  MONTH TO DATE    1.80                      0.49   1.31     0.00
  SINCE JUN 1     12.92                      7.64   5.28     9.08
  SINCE JAN 1     31.03                     20.72  10.31    22.72

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      T                         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      3                        52    -49       13
  SINCE JUL 1      0                         4     -4        0

 COOLING
  YESTERDAY        8                         9     -1       15
  MONTH TO DATE   32                        27      5       37
  SINCE JUN 1    568                       475     93      585
  SINCE JAN 1    601                       529     72      659
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    32   HIGHEST WIND DIRECTION    SW (230)
  HIGHEST GUST SPEED    45   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     9.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           500 AM
 LOWEST     54          1200 PM
 AVERAGE    72

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83       100      1947
 MINIMUM TEMPERATURE (F)   64        53      1992
                                             1894
                                             1880


SUNRISE AND SUNSET
AUGUST  4 2017........SUNRISE   548 AM CDT   SUNSET   806 PM CDT
AUGUST  5 2017........SUNRISE   549 AM CDT   SUNSET   805 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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