Climatological Report (Daily)
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871
CDUS43 KLOT 082136
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CDT TUE AUG 8 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR AUGUST 8 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    259 PM 100    1934  83      1       84
  MINIMUM         58    230 AM  52    1976  64     -6       72
  AVERAGE         71                        73     -2       78

PRECIPITATION (IN)
  TODAY            0.00          2.35 1977   0.16  -0.16     0.00
  MONTH TO DATE    1.80                      1.28   0.52     0.02
  SINCE JUN 1     12.92                      8.43   4.49     9.10
  SINCE JAN 1     31.03                     21.51   9.52    22.74

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 JUN 1      T                         0.0    0.0      0.0
  SINCE JUL 1      T                         0.0    0.0      0.0

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE    3                         0      3        0
  SINCE JUN 1      6                        52    -46       13
  SINCE JUL 1      3                         4     -1        0

 COOLING
  TODAY            6                         8     -2       13
  MONTH TO DATE   52                        71    -19       98
  SINCE JUN 1    588                       519     69      646
  SINCE JAN 1    621                       573     48      720
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED     5.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    69           100 AM
 LOWEST     36          1200 PM
 AVERAGE    53

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83        97      1913
 MINIMUM TEMPERATURE (F)   64        51      1972


SUNRISE AND SUNSET
AUGUST  8 2017........SUNRISE   553 AM CDT   SUNSET   801 PM CDT
AUGUST  9 2017........SUNRISE   554 AM CDT   SUNSET   800 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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