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Climatological Report (Daily)
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CDUS43 KLOT 040636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT SAT MAY 4 2013


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...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 3 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         48   1159 PM  92    1955  66    -18       86
  MINIMUM         40    609 AM  30    2004  45     -5       66
  AVERAGE         44                        55    -11       76

PRECIPITATION (IN)
  YESTERDAY        0.05          1.59 1919   0.12  -0.07     1.34
  MONTH TO DATE    0.16                      0.35  -0.19     1.43
  SINCE MAR 1     10.84                      6.23   4.61     5.76
  SINCE JAN 1     17.43                      9.75   7.68     9.26

SNOWFALL (IN)
  YESTERDAY        0.0           1.3  1907   0.0    0.0       T
  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
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       21                        10     11        0
  MONTH TO DATE   37                        32      5        8
  SINCE MAR 1   1573                      1365    208      825
  SINCE JUL 1   5975                      6099   -124     4798

 COOLING
  YESTERDAY        0                         1     -1       11
  MONTH TO DATE    5                         1      4       15
  SINCE MAR 1     13                        11      2       58
  SINCE JAN 1     13                        11      2       58
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION    NE (30)
  AVERAGE WIND SPEED    11.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           700 AM
 LOWEST     82          1200 AM
 AVERAGE    88

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   66        92      1952
 MINIMUM TEMPERATURE (F)   45        32      1954


SUNRISE AND SUNSET
MAY  4 2013...........SUNRISE   543 AM CDT   SUNSET   754 PM CDT
MAY  5 2013...........SUNRISE   542 AM CDT   SUNSET   755 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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