Climatological Report (Daily)
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000
CDUS43 KLOT 190634
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT WED AUG 19 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 18 2015...

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)
 YESTERDAY
  MAXIMUM         83    251 PM  98    1947  82      1       83
  MINIMUM         67    627 AM  49    1963  63      4       65
  AVERAGE         75                        72      3       74

PRECIPITATION (IN)
  YESTERDAY        0.40          2.85 1990   0.17   0.23     0.00
  MONTH TO DATE    1.42                      2.98  -1.56     3.83
  SINCE JUN 1     11.39                     10.13   1.26    13.78
  SINCE JAN 1     22.88                     23.21  -0.33    28.61

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 JUN 1      T                         0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        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
  YESTERDAY       10                         8      2        9
  MONTH TO DATE  188                       151     37      120
  SINCE JUN 1    552                       599    -47      497
  SINCE JAN 1    605                       653    -48      558
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED     8.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           100 AM
 LOWEST     58           300 PM
 AVERAGE    78

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82        99      1983
                                             1947
 MINIMUM TEMPERATURE (F)   63        51      1992


SUNRISE AND SUNSET
AUGUST 19 2015........SUNRISE   603 AM CDT   SUNSET   746 PM CDT
AUGUST 20 2015........SUNRISE   605 AM CDT   SUNSET   745 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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