Climatological Report (Daily)
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CDUS43 KLOT 180641
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
141 AM CDT SUN SEP 18 2016


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 17 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         82    348 PM  93    1955  75      7       85
  MINIMUM         62   1145 PM  37    1984  54      8       61
  AVERAGE         72                        64      8       73

PRECIPITATION (IN)
  YESTERDAY        0.04          2.42 1927   0.10  -0.06     0.36
  MONTH TO DATE    0.59                      1.86  -1.27     1.78
  SINCE SEP 1      0.59                      1.86  -1.27     1.78
  SINCE JAN 1     27.57                     26.99   0.58    25.40

SNOWFALL (IN)
  YESTERDAY        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      0.0                       0.0    0.0       T
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         3     -3        0
  MONTH TO DATE    1                        32    -31       18
  SINCE SEP 1      1                        32    -31       18
  SINCE JUL 1      1                        45    -44       36

 COOLING
  YESTERDAY        7                         3      4        8
  MONTH TO DATE  112                        72     40      138
  SINCE SEP 1    112                        72     40      138
  SINCE JAN 1   1077                       812    265      779
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED     8.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           400 AM
 LOWEST     35           400 PM
 AVERAGE    64

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        94      1955
 MINIMUM TEMPERATURE (F)   53        40      1903
                                             1901
                                             1889


SUNRISE AND SUNSET
SEPTEMBER 18 2016.....SUNRISE   635 AM CDT   SUNSET   655 PM CDT
SEPTEMBER 19 2016.....SUNRISE   636 AM CDT   SUNSET   653 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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