Climatological Report (Daily)
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CDUS43 KLOT 280636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
135 AM CDT SUN APR 28 2013


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 27 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         68    341 PM  87    1986  64      4       54
  MINIMUM         43    507 AM  29    1945  43      0       35
  AVERAGE         56                        53      3       45

PRECIPITATION (IN)
  YESTERDAY        0.00          2.13 1959   0.12  -0.12     0.01
  MONTH TO DATE    8.65                      3.02   5.63     1.04
  SINCE MAR 1     10.65                      5.52   5.13     3.72
  SINCE JAN 1     17.24                      9.04   8.20     7.22

SNOWFALL (IN)
  YESTERDAY        0.0           0.2  1950   0.0    0.0      0.0
  MONTH TO DATE    0.1                       1.2   -1.1      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        9                        12     -3       20
  MONTH TO DATE  530                       458     72      386
  SINCE MAR 1   1524                      1299    225      776
  SINCE JUL 1   5926                      6033   -107     4749

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        4
  SINCE MAR 1      0                         1     -1       43
  SINCE JAN 1      0                         1     -1       43
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (110)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     E (80)
  AVERAGE WIND SPEED     6.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           600 AM
 LOWEST     34           400 PM
 AVERAGE    64

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   64        86      1915
 MINIMUM TEMPERATURE (F)   43        28      1992


SUNRISE AND SUNSET
APRIL 28 2013.........SUNRISE   551 AM CDT   SUNSET   747 PM CDT
APRIL 29 2013.........SUNRISE   550 AM CDT   SUNSET   748 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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