Climatological Report (Daily)
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CDUS43 KLOT 230638
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT THU MAY 23 2013


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 22 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         73   1039 AM  94    1925  72      1       71
  MINIMUM         52   1159 PM  36    2006  50      2       50
  AVERAGE         63                        61      2       61

PRECIPITATION (IN)
  YESTERDAY        1.35          1.62 1983   0.12   1.23     0.00
  MONTH TO DATE    3.63                      2.61   1.02     3.26
  SINCE MAR 1     14.31                      8.49   5.82     7.59
  SINCE JAN 1     20.90                     12.01   8.89    11.09

SNOWFALL (IN)
  YESTERDAY        0.0           T    2011   0.0    0.0      0.0
                                      1917
  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        2                         6     -4        4
  MONTH TO DATE  130                       182    -52       86
  SINCE MAR 1   1666                      1515    151      903
  SINCE JUL 1   6068                      6249   -181     4876

 COOLING
  YESTERDAY        0                         2     -2        0
  MONTH TO DATE   51                        24     27       51
  SINCE MAR 1     59                        34     25       94
  SINCE JAN 1     59                        34     25       94
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    NE (50)
  AVERAGE WIND SPEED     7.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           700 AM
 LOWEST     61           400 PM
 AVERAGE    81

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   72        92      1977
                                             1964
                                             1921
 MINIMUM TEMPERATURE (F)   50        37      1917


SUNRISE AND SUNSET
MAY 23 2013...........SUNRISE   524 AM CDT   SUNSET   813 PM CDT
MAY 24 2013...........SUNRISE   523 AM CDT   SUNSET   814 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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