000
CDUS43 KLOT 212143
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
440 PM CDT TUE MAY 21 2013


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR MAY 21 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         81    257 PM  92    1977  72      9       67
                                      1934
  MINIMUM         64    552 AM  31    2002  50     14       54
  AVERAGE         73                        61     12       61

PRECIPITATION (IN)
  TODAY            0.09          1.16 1974   0.13  -0.04     0.00
  MONTH TO DATE    1.81                      2.49  -0.68     3.26
  SINCE MAR 1     12.49                      8.37   4.12     7.59
  SINCE JAN 1     19.08                     11.89   7.19    11.09

SNOWFALL (IN)
  TODAY            0.0           T    2004   0.0    0.0      0.0
                                      1969
  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                         6     -6        4
  MONTH TO DATE  128                       176    -48       82
  SINCE MAR 1   1664                      1509    155      899
  SINCE JUL 1   6066                      6243   -177     4872

 COOLING
  TODAY            8                         2      6        0
  MONTH TO DATE   51                        22     29       51
  SINCE MAR 1     59                        32     27       94
  SINCE JAN 1     59                        32     27       94
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED    14.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           200 AM
 LOWEST     54           200 PM
 AVERAGE    74

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   72        94      1925
 MINIMUM TEMPERATURE (F)   50        36      2006


SUNRISE AND SUNSET
MAY 21 2013...........SUNRISE   526 AM CDT   SUNSET   811 PM CDT
MAY 22 2013...........SUNRISE   525 AM CDT   SUNSET   812 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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