Climatological Report (Daily)
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CDUS43 KLOT 070636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
135 AM CDT SAT OCT 7 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 6 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         69    429 PM  94    1963  66      3       74
  MINIMUM         60    656 AM  28    1952  46     14       58
  AVERAGE         65                        56      9       66

PRECIPITATION (IN)
  YESTERDAY        0.30          1.57 1955   0.10   0.20     0.25
  MONTH TO DATE    0.34                      0.60  -0.26     1.22
  SINCE SEP 1      0.66                      3.81  -3.15     2.98
  SINCE JAN 1     32.40                     28.94   3.46    29.96

SNOWFALL (IN)
  YESTERDAY        0.0           T    1935   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
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                        10    -10        0
  MONTH TO DATE    5                        53    -48       11
  SINCE SEP 1     42                       158   -116       34
  SINCE JUL 1     47                       171   -124       34

 COOLING
  YESTERDAY        0                         1     -1        1
  MONTH TO DATE   17                         6     11        9
  SINCE SEP 1    196                        98     98      174
  SINCE JAN 1    979                       838    141     1139
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     8.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          1000 AM
 LOWEST     78           100 AM
 AVERAGE    86

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   66        87      2007
 MINIMUM TEMPERATURE (F)   45        29      2001


SUNRISE AND SUNSET
OCTOBER  7 2017.......SUNRISE   655 AM CDT   SUNSET   623 PM CDT
OCTOBER  8 2017.......SUNRISE   656 AM CDT   SUNSET   621 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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