Climatological Report (Daily)
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153
CDUS43 KLOT 182138
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CDT TUE JUL 18 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR JULY 18 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         89    247 PM 100    1946  84      5       88
  MINIMUM         60    420 AM  53    1979  64     -4       71
  AVERAGE         75                        74      1       80

PRECIPITATION (IN)
  TODAY            0.00          2.90 1993   0.12  -0.12     0.00
  MONTH TO DATE    3.10                      2.00   1.10     2.37
  SINCE JUN 1      6.54                      5.45   1.09     5.22
  SINCE JAN 1     24.65                     18.53   6.12    18.86

SNOWFALL (IN)
  TODAY            0.0           0.0    MM   0.0    0.0      0.0
  MONTH TO DATE    T                         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    0                         0      0        0
  SINCE JUN 1      3                        48    -45       13
  SINCE JUL 1      0                         0      0        0

 COOLING
  TODAY           10                         9      1       15
  MONTH TO DATE  165                       161      4      154
  SINCE JUN 1    395                       326     69      370
  SINCE JAN 1    428                       380     48      444
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED     3.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           100 AM
 LOWEST     34          1100 AM
 AVERAGE    62

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84       101      1930
 MINIMUM TEMPERATURE (F)   64        50      1873


SUNRISE AND SUNSET
JULY 18 2017..........SUNRISE   532 AM CDT   SUNSET   823 PM CDT
JULY 19 2017..........SUNRISE   533 AM CDT   SUNSET   822 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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