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CDUS43 KLOT 182146
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CDT SAT MAY 18 2013

...................................
...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR MAY 18 2013...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2013

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         79   220 PM     93  1962    71      8       85
  MINIMUM         56   457 AM     34  2002    49      7       53
  AVERAGE         68                          60      8       69

PRECIPITATION (IN)
  TODAY           0.00          1.36  1926  0.13  -0.13     0.00
  MONTH TO DATE   0.63                      2.12  -1.49     3.12
  SINCE MAR 1    11.31                      8.00   3.31     7.45
  SINCE JAN 1    17.90                     11.52   6.38    10.95

SNOWFALL (IN)
  TODAY            0.0           T    1894   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0       T
  SINCE MAR 1     10.5                       6.8    3.7      0.3
  SINCE JUL 1     30.1                      36.3   -6.2     19.8

DEGREE DAYS
 HEATING
  TODAY              0                         7     -7        0
  MONTH TO DATE    128                       158    -30       78
  SINCE MAR 1     1664                      1491    173      895
  SINCE JUL 1     6066                      6225   -159     4868

 COOLING
  TODAY              3                         1      2        4
  MONTH TO DATE     24                        16      8       26
  SINCE MAR 1       32                        26      6       69
  SINCE JAN 1       32                        26      6       69
..................................................................
WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    SE (140)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    SE (140)
  AVERAGE WIND SPEED     5.6

SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6

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

RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           300 AM
 LOWEST     54          1200 PM
 AVERAGE    70
..........................................................

THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   71        94      1977
                                             1975
 MINIMUM TEMPERATURE (F)   49        36      1993
                                             1894

SUNRISE AND SUNSET
MAY 18 2013...........SUNRISE   528 AM CDT   SUNSET   809 PM CDT
MAY 19 2013...........SUNRISE   527 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.

$$