Climatological Report (Daily)
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000
CDUS43 KLOT 092137
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CDT MON OCT 9 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR OCTOBER 9 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         81    208 PM  86    2010  65     16       63
                                      1949
  MINIMUM         52    254 AM  30    2000  45      7       47
  AVERAGE         67                        55     12       55

PRECIPITATION (IN)
  TODAY            0.00          2.27 1954   0.11  -0.11     0.00
  MONTH TO DATE    0.77                      0.90  -0.13     1.22
  SINCE SEP 1      1.09                      4.11  -3.02     2.98
  SINCE JAN 1     32.83                     29.24   3.59    29.96

SNOWFALL (IN)
  TODAY            0.0           T    1925   0.0    0.0      0.0
                                      1906
  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                        11    -11       10
  MONTH TO DATE    5                        84    -79       39
  SINCE SEP 1     42                       189   -147       62
  SINCE JUL 1     47                       202   -155       62

 COOLING
  TODAY            2                         1      1        0
  MONTH TO DATE   25                         9     16        9
  SINCE SEP 1    204                       101    103      174
  SINCE JAN 1    987                       841    146     1139
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED     3.0


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     39          1200 PM
 AVERAGE    61

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   65        86      1962
 MINIMUM TEMPERATURE (F)   44        27      1964


SUNRISE AND SUNSET
OCTOBER  9 2017.......SUNRISE   658 AM CDT   SUNSET   619 PM CDT
OCTOBER 10 2017.......SUNRISE   659 AM CDT   SUNSET   618 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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