Climatological Report (Daily)
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CDUS43 KLOT 042133
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
432 PM CDT FRI SEP 4 2015


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR SEPTEMBER 4 2015...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         85   1257 PM  95    1983  79      6       85
                                      1960
                                      1954
  MINIMUM         68    503 AM  45    1997  59      9       71
                                      1982
  AVERAGE         77                        69      8       78

PRECIPITATION (IN)
  TODAY            0.00          2.95 1894   0.12  -0.12     0.26
  MONTH TO DATE    T                         0.47  -0.47     0.63
  SINCE SEP 1      T                         0.47  -0.47     0.63
  SINCE JAN 1     23.62                     25.60  -1.98    32.71

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                         1     -1        0
  MONTH TO DATE    0                         4     -4        0
  SINCE SEP 1      0                         4     -4        0
  SINCE JUL 1     18                        17      1        5

 COOLING
  TODAY           12                         5      7       13
  MONTH TO DATE   57                        22     35       42
  SINCE SEP 1     57                        22     35       42
  SINCE JAN 1    698                       762    -64      757
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     E (70)
  AVERAGE WIND SPEED     4.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           100 AM
 LOWEST     61           100 PM
 AVERAGE    76

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   79        98      1899
 MINIMUM TEMPERATURE (F)   59        44      1988
                                             1984


SUNRISE AND SUNSET
SEPTEMBER  4 2015.....SUNRISE   620 AM CDT   SUNSET   720 PM CDT
SEPTEMBER  5 2015.....SUNRISE   621 AM CDT   SUNSET   719 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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