Climatological Report (Daily)
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CDUS43 KLOT 212135
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CDT FRI AUG 21 2015


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR AUGUST 21 2015...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         82    205 PM  99    1955  82      0       79
  MINIMUM         55    512 AM  46    1950  63     -8       70
  AVERAGE         69                        72     -3       75

PRECIPITATION (IN)
  TODAY            0.00          2.00 1874   0.15  -0.15     0.98
  MONTH TO DATE    1.42                      3.45  -2.03     4.90
  SINCE JUN 1     11.39                     10.60   0.79    14.85
  SINCE JAN 1     22.88                     23.68  -0.80    29.68

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      0.0                       0.0    0.0      0.0

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1     52                        52      0       17
  SINCE JUL 1     13                         4      9        5

 COOLING
  TODAY            4                         7     -3       10
  MONTH TO DATE  198                       173     25      154
  SINCE JUN 1    562                       621    -59      531
  SINCE JAN 1    615                       675    -60      592
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     7.5


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    86           400 AM
 LOWEST     42          1100 AM
 AVERAGE    64

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82        99      1936
 MINIMUM TEMPERATURE (F)   63        49      2004


SUNRISE AND SUNSET
AUGUST 21 2015........SUNRISE   605 AM CDT   SUNSET   743 PM CDT
AUGUST 22 2015........SUNRISE   607 AM CDT   SUNSET   742 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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