Climatological Report (Daily)
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CDUS43 KLOT 040633
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT FRI SEP 4 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 3 2015...

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)
 YESTERDAY
  MAXIMUM         91    222 PM  97    1953  79     12       83
  MINIMUM         71   1159 PM  47    1974  60     11       61
  AVERAGE         81                        69     12       72

PRECIPITATION (IN)
  YESTERDAY        0.00          1.92 1961   0.11  -0.11     0.00
  MONTH TO DATE    T                         0.35  -0.35     0.37
  SINCE SEP 1      T                         0.35  -0.35     0.37
  SINCE JAN 1     23.62                     25.48  -1.86    32.45

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      T                         0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    0                         3     -3        0
  SINCE SEP 1      0                         3     -3        0
  SINCE JUL 1     18                        16      2        5

 COOLING
  YESTERDAY       16                         5     11        7
  MONTH TO DATE   45                        17     28       29
  SINCE SEP 1     45                        17     28       29
  SINCE JAN 1    686                       757    -71      744
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION    NE (50)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     8.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           300 AM
 LOWEST     50           100 PM
 AVERAGE    69

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   79        95      1983
                                             1960
                                             1954
 MINIMUM TEMPERATURE (F)   59        45      1997
                                             1982


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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