Climatological Report (Daily)
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000
CDUS43 KLOT 162136
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CDT WED AUG 16 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR AUGUST 16 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         88    237 PM  98    1988  82      6       88
                                      1983
  MINIMUM         67    518 AM  48    2004  63      4       71
  AVERAGE         78                        73      5       80

PRECIPITATION (IN)
  TODAY            0.00          3.79 1968   0.17  -0.17     0.02
  MONTH TO DATE    1.83                      2.64  -0.81     1.00
  SINCE JUN 1     12.95                      9.79   3.16    10.08
  SINCE JAN 1     31.06                     22.87   8.19    23.72

SNOWFALL (IN)
  TODAY            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

DEGREE DAYS
 HEATING
  TODAY            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
  TODAY           13                         8      5       15
  MONTH TO DATE  114                       135    -21      204
  SINCE JUN 1    650                       583     67      752
  SINCE JAN 1    683                       637     46      826
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     E (100)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    SE (120)
  AVERAGE WIND SPEED     7.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           500 AM
 LOWEST     51          1200 PM
 AVERAGE    69

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


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


SUNRISE AND SUNSET
AUGUST 16 2017........SUNRISE   601 AM CDT   SUNSET   750 PM CDT
AUGUST 17 2017........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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