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CDUS43 KLOT 152142
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
439 PM CDT WED MAY 15 2013


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR MAY 15 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         84    115 PM  91    1962  70     14       86
  MINIMUM         70    620 AM  35    1895  48     22       57
  AVERAGE         77                        59     18       72

PRECIPITATION (IN)
  TODAY            0.00          2.31 1915   0.12  -0.12     0.05
  MONTH TO DATE    0.63                      1.75  -1.12     3.12
  SINCE MAR 1     11.31                      7.63   3.68     7.45
  SINCE JAN 1     17.90                     11.15   6.75    10.95

SNOWFALL (IN)
  TODAY            0.0           0.0    MM   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  126                       137    -11       66
  SINCE MAR 1   1662                      1470    192      883
  SINCE JUL 1   6064                      6204   -140     4856

 COOLING
  TODAY           12                         1     11        7
  MONTH TO DATE   23                        13     10       22
  SINCE MAR 1     31                        23      8       65
  SINCE JAN 1     31                        23      8       65
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED    11.0


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    53           600 AM
 LOWEST     28          1100 AM
 AVERAGE    41

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        94      1962
 MINIMUM TEMPERATURE (F)   48        33      1997


SUNRISE AND SUNSET
MAY 15 2013...........SUNRISE   531 AM CDT   SUNSET   805 PM CDT
MAY 16 2013...........SUNRISE   530 AM CDT   SUNSET   806 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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