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CDUS43 KLOT 162141
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CDT MON OCT 16 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR OCTOBER 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         63    242 PM  87    1963  62      1       72
  MINIMUM         43    312 AM  28    1991  43      0       65
  AVERAGE         53                        52      1       69

PRECIPITATION (IN)
  TODAY            0.00          1.41 1878   0.09  -0.09     0.29
  MONTH TO DATE    6.73                      1.59   5.14     1.65
  SINCE SEP 1      7.05                      4.80   2.25     3.41
  SINCE JAN 1     38.79                     29.93   8.86    30.39

SNOWFALL (IN)
  TODAY            0.0           T    2009   0.0    0.0      0.0
                                      1943
  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

DEGREE DAYS
 HEATING
  TODAY           12                        13     -1        0
  MONTH TO DATE   43                       167   -124       88
  SINCE SEP 1     80                       272   -192      111
  SINCE JUL 1     85                       285   -200      111

 COOLING
  TODAY            0                         0      0        4
  MONTH TO DATE   25                        10     15       13
  SINCE SEP 1    204                       102    102      178
  SINCE JAN 1    987                       842    145     1143
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     7.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83           200 AM
 LOWEST     34           300 PM
 AVERAGE    59

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   62        86      1950
 MINIMUM TEMPERATURE (F)   42        26      1948


SUNRISE AND SUNSET
OCTOBER 16 2017.......SUNRISE   706 AM CDT   SUNSET   608 PM CDT
OCTOBER 17 2017.......SUNRISE   707 AM CDT   SUNSET   606 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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