Climatological Report (Daily)
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CDUS43 KLOT 030631
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
131 AM CDT SUN SEP 3 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 2 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         75    400 PM 101    1953  80     -5       74
  MINIMUM         50    546 AM  44    1946  60    -10       62
  AVERAGE         63                        70     -7       68

PRECIPITATION (IN)
  YESTERDAY        0.25          1.55 2010   0.12   0.13     0.00
  MONTH TO DATE    0.25                      0.24   0.01      T
  SINCE SEP 1      0.25                      0.24   0.01      T
  SINCE JAN 1     31.99                     25.37   6.62    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        2                         1      1        0
  MONTH TO DATE    7                         2      5        0
  SINCE SEP 1      7                         2      5        0
  SINCE JUL 1     12                        15     -3        0

 COOLING
  YESTERDAY        0                         6     -6        3
  MONTH TO DATE    0                        12    -12        6
  SINCE SEP 1      0                        12    -12        6
  SINCE JAN 1    783                       752     31      971
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED     4.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90          1100 PM
 LOWEST     35           300 PM
 AVERAGE    63

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   79        97      1953
 MINIMUM TEMPERATURE (F)   60        47      1974


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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