Climatological Report (Daily)
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000
CDUS43 KLOT 022141
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
438 PM CDT MON OCT 2 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR OCTOBER 2 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         83    102 PM  91    1971  68     15       65
  MINIMUM         58    116 AM  28    1974  47     11       56
  AVERAGE         71                        58     13       61

PRECIPITATION (IN)
  TODAY            0.00          1.39 2006   0.09  -0.09     0.03
  MONTH TO DATE    0.00                      0.19  -0.19     0.97
  SINCE SEP 1      0.32                      3.40  -3.08     2.73
  SINCE JAN 1     32.06                     28.53   3.53    29.71

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                         8     -8        4
  MONTH TO DATE    5                        16    -11        8
  SINCE SEP 1     42                       121    -79       31
  SINCE JUL 1     47                       134    -87       31

 COOLING
  TODAY            6                         1      5        0
  MONTH TO DATE    6                         2      4        0
  SINCE SEP 1    185                        94     91      165
  SINCE JAN 1    968                       834    134     1130
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED    10.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    65           600 AM
 LOWEST     34           100 PM
 AVERAGE    50

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   68        91      1954
 MINIMUM TEMPERATURE (F)   47        29      1981
                                             1974


SUNRISE AND SUNSET
OCTOBER  2 2017.......SUNRISE   650 AM CDT   SUNSET   631 PM CDT
OCTOBER  3 2017.......SUNRISE   651 AM CDT   SUNSET   629 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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