Climatological Report (Daily)
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000
CDUS43 KLOT 140642
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
141 AM CDT SAT OCT 14 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 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         73    339 PM  88    1975  64      9       57
  MINIMUM         55    653 AM  25    1988  44     11       38
  AVERAGE         64                        54     10       48

PRECIPITATION (IN)
  YESTERDAY        0.00          3.79 2001   0.10  -0.10     0.00
  MONTH TO DATE    2.34                      1.30   1.04     1.36
  SINCE SEP 1      2.66                      4.51  -1.85     3.12
  SINCE JAN 1     34.40                     29.64   4.76    30.10

SNOWFALL (IN)
  YESTERDAY        0.0           T    1986   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.1   -0.1      0.0
  SINCE SEP 1      0.0                       0.1   -0.1      0.0
  SINCE JUL 1      T                         0.1   -0.1      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        1                        12    -11       17
  MONTH TO DATE   23                       130   -107       72
  SINCE SEP 1     60                       235   -175       95
  SINCE JUL 1     65                       248   -183       95

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE   25                        10     15        9
  SINCE SEP 1    204                       102    102      174
  SINCE JAN 1    987                       842    145     1139
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED     8.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           100 AM
 LOWEST     57           200 PM
 AVERAGE    75

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   63        89      1975
 MINIMUM TEMPERATURE (F)   43        27      1872


SUNRISE AND SUNSET
OCTOBER 14 2017.......SUNRISE   703 AM CDT   SUNSET   611 PM CDT
OCTOBER 15 2017.......SUNRISE   704 AM CDT   SUNSET   610 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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