Climatological Report (Daily)
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CDUS43 KLOT 032135
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT SUN SEP 3 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR SEPTEMBER 3 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         84    230 PM  97    1953  79      5       76
  MINIMUM         57    536 AM  47    1974  60     -3       56
  AVERAGE         71                        69      2       66

PRECIPITATION (IN)
  TODAY            0.00          1.92 1961   0.11  -0.11     0.00
  MONTH TO DATE    0.25                      0.35  -0.10      T
  SINCE SEP 1      0.25                      0.35  -0.10      T
  SINCE JAN 1     31.99                     25.48   6.51    26.98

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    7                         3      4        0
  SINCE SEP 1      7                         3      4        0
  SINCE JUL 1     12                        16     -4        0

 COOLING
  TODAY            6                         5      1        1
  MONTH TO DATE    6                        17    -11        7
  SINCE SEP 1      6                        17    -11        7
  SINCE JAN 1    789                       757     32      972
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED     6.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           100 AM
 LOWEST     31           200 PM
 AVERAGE    62

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


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


SUNRISE AND SUNSET
SEPTEMBER  3 2017.....SUNRISE   620 AM CDT   SUNSET   721 PM CDT
SEPTEMBER  4 2017.....SUNRISE   621 AM CDT   SUNSET   720 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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