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CDUS43 KLOT 111118 CCA
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT SAT MAY 11 2013


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 10 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         47   1151 PM  90    2011  68    -21       67
  MINIMUM         44    822 PM  28    1983  47     -3       46
  AVERAGE         46                        57    -11       57

PRECIPITATION (IN)
  YESTERDAY        0.13          2.84 1951   0.12   0.01     0.00
  MONTH TO DATE    0.63                      1.16  -0.53     3.04
  SINCE MAR 1     11.31                      7.04   4.27     7.37
  SINCE JAN 1     17.90                     10.56   7.34    10.87

SNOWFALL (IN)
  YESTERDAY        0.0           T    1945   0.0    0.0      0.0
                                      1907
                                      1902
  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       19                         9     10        8
  MONTH TO DATE   79                        98    -19       52
  SINCE MAR 1   1615                      1431    184      869
  SINCE JUL 1   6017                      6165   -148     4842

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    5                         8     -3       15
  SINCE MAR 1     13                        18     -5       58
  SINCE JAN 1     13                        18     -5       58
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     N (20)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     N (10)
  AVERAGE WIND SPEED    10.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.

  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           200 AM
 LOWEST     76           400 PM
 AVERAGE    88

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        89      1982
 MINIMUM TEMPERATURE (F)   47        33      1981


SUNRISE AND SUNSET
MAY 11 2013...........SUNRISE   535 AM CDT   SUNSET   802 PM CDT
MAY 12 2013...........SUNRISE   534 AM CDT   SUNSET   803 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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