Climatological Report (Daily)
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CDUS43 KLOT 222136
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CDT FRI SEP 22 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR SEPTEMBER 22 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         94R   259 PM  92    1956  72     22       81
  MINIMUM         71    522 AM  32    1995  51     20       64
  AVERAGE         83                        62     21       73

PRECIPITATION (IN)
  TODAY            0.00          1.73 2006   0.11  -0.11      T
  MONTH TO DATE    0.32                      2.40  -2.08     1.14
  SINCE SEP 1      0.32                      2.40  -2.08     1.14
  SINCE JAN 1     32.06                     27.53   4.53    28.12

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 SEP 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      T                         0.0    0.0      0.0

DEGREE DAYS
 HEATING
  TODAY            0                         5     -5        0
  MONTH TO DATE   29                        54    -25        1
  SINCE SEP 1     29                        54    -25        1
  SINCE JUL 1     34                        67    -33        1

 COOLING
  TODAY           18                         2     16        8
  MONTH TO DATE  112                        82     30      146
  SINCE SEP 1    112                        82     30      146
  SINCE JAN 1    895                       822     73     1111
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     6.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    79           300 AM
 LOWEST     36          1200 PM
 AVERAGE    58

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   72        91      1937
 MINIMUM TEMPERATURE (F)   51        29      1995


SUNRISE AND SUNSET
SEPTEMBER 22 2017.....SUNRISE   639 AM CDT   SUNSET   648 PM CDT
SEPTEMBER 23 2017.....SUNRISE   640 AM CDT   SUNSET   647 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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