Climatological Report (Daily)
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000
CDUS43 KLOT 300633
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT THU APR 30 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 29 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         61    242 PM  88    1970  64     -3       59
                                      1899
  MINIMUM         38    503 AM  31    2008  43     -5       47
                                      1958
  AVERAGE         50                        54     -4       53

PRECIPITATION (IN)
  YESTERDAY        T             2.75 1909   0.12  -0.12     0.61
  MONTH TO DATE    2.87                      3.26  -0.39     2.83
  SINCE MAR 1      3.97                      5.76  -1.79     4.54
  SINCE JAN 1      6.83                      9.28  -2.45     9.84

SNOWFALL (IN)
  YESTERDAY        0.0           T    1909   0.0    0.0      0.0
                                      1950
  MONTH TO DATE    T                         1.2   -1.2      1.4
  SINCE MAR 1      7.1                       6.8    0.3     13.7
  SINCE JUL 1     50.7                      36.6   14.1     82.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       15                        12      3       12
  MONTH TO DATE  440                       482    -42      471
  SINCE MAR 1   1350                      1323     27     1496
  SINCE JUL 1   6530                      6057    473     6911

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


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    NE (60)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NE (60)
  AVERAGE WIND SPEED     7.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    79           200 AM
 LOWEST     39          1100 AM
 AVERAGE    59

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   65        91      1942
 MINIMUM TEMPERATURE (F)   44        30      1873


SUNRISE AND SUNSET
APRIL 30 2015.........SUNRISE   549 AM CDT   SUNSET   749 PM CDT
MAY  1 2015...........SUNRISE   548 AM CDT   SUNSET   750 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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