Climatological Report (Daily)
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000
CDUS43 KLOT 010634
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT SAT AUG 1 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 31 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         87    138 PM  99    2006  83      4       84
                                      1945
  MINIMUM         67    513 AM  51    1984  64      3       59
  AVERAGE         77                        74      3       72

PRECIPITATION (IN)
  YESTERDAY        0.00          1.29 1888   0.15  -0.15     0.00
  MONTH TO DATE    2.85                      3.70  -0.85     2.14
  SINCE JUN 1      9.97                      7.15   2.82     9.95
  SINCE JAN 1     21.46                     20.23   1.23    24.78

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   13                         0     13        5
  SINCE JUN 1     52                        52      0       17
  SINCE JUL 1     13                         4      9        5

 COOLING
  YESTERDAY       12                         9      3        7
  MONTH TO DATE  246                       283    -37      179
  SINCE JUN 1    364                       448    -84      377
  SINCE JAN 1    417                       502    -85      438
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    34   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    12.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    78           500 AM
 LOWEST     27           400 PM
 AVERAGE    53

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83       100      1988
 MINIMUM TEMPERATURE (F)   64        51      1990


SUNRISE AND SUNSET
AUGUST  1 2015........SUNRISE   545 AM CDT   SUNSET   810 PM CDT
AUGUST  2 2015........SUNRISE   546 AM CDT   SUNSET   809 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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