Climatological Report (Daily)
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000
CDUS43 KLOT 021114
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
131 AM CDT SAT SEP 2 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 1 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    205 PM 101    1953  80    -11       73
  MINIMUM         50   1144 PM  45    1949  60    -10       62
  AVERAGE         60                        70    -10       68

PRECIPITATION (IN)
  YESTERDAY        0.00          2.92 1977   0.12  -0.12      T
  MONTH TO DATE    0.00                      0.12  -0.12      T
  SINCE SEP 1      0.00                      0.12  -0.12      T
  SINCE JAN 1     31.74                     25.25   6.49    26.98

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        5                         1      4        0
  MONTH TO DATE    5                         1      4        0
  SINCE SEP 1      5                         1      4        0
  SINCE JUL 1     10                        14     -4        0

 COOLING
  YESTERDAY        0                         6     -6        3
  MONTH TO DATE    0                         6     -6        3
  SINCE SEP 1      0                         6     -6        3
  SINCE JAN 1    783                       746     37      968
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     E (80)
  AVERAGE WIND SPEED    11.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    69           400 AM
 LOWEST     42          1200 PM
 AVERAGE    56

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   80       101      1953
 MINIMUM TEMPERATURE (F)   60        44      1946


SUNRISE AND SUNSET
SEPTEMBER  2 2017.....SUNRISE   619 AM CDT   SUNSET   723 PM CDT
SEPTEMBER  3 2017.....SUNRISE   620 AM CDT   SUNSET   721 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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