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CDUS43 KLOT 030640
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
138 AM CDT FRI MAY 3 2013


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...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 2 2013...

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)
 YESTERDAY
  MAXIMUM         55   1205 AM  91    1959  66    -11       80
  MINIMUM         42   1159 PM  27    1875  44     -2       58
  AVERAGE         49                        55     -6       69

PRECIPITATION (IN)
  YESTERDAY        0.11          1.28 2008   0.12  -0.01     0.00
  MONTH TO DATE    0.11                      0.23  -0.12     0.09
  SINCE MAR 1     10.79                      6.11   4.68     4.42
  SINCE JAN 1     17.38                      9.63   7.75     7.92

SNOWFALL (IN)
  YESTERDAY        0.0           0.6  1940   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE MAR 1     10.5                       6.8    3.7      0.3
  SINCE JUL 1     30.1                      36.3   -6.2     19.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       16                        11      5        0
  MONTH TO DATE   16                        22     -6        8
  SINCE MAR 1   1552                      1355    197      825
  SINCE JUL 1   5954                      6089   -135     4798

 COOLING
  YESTERDAY        0                         0      0        4
  MONTH TO DATE    5                         0      5        4
  SINCE MAR 1     13                        10      3       47
  SINCE JAN 1     13                        10      3       47
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    39   HIGHEST GUST DIRECTION    NE (50)
  AVERAGE WIND SPEED    15.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HEAVY RAIN
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83           400 AM
 LOWEST     66          1000 AM
 AVERAGE    75

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   66        92      1955
 MINIMUM TEMPERATURE (F)   45        30      2004


SUNRISE AND SUNSET
MAY  3 2013...........SUNRISE   545 AM CDT   SUNSET   753 PM CDT
MAY  4 2013...........SUNRISE   543 AM CDT   SUNSET   754 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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