Climatological Report (Daily)
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CDUS43 KLOT 302137
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
437 PM CDT THU APR 30 2015


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR APRIL 30 2015...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         51    100 PM  91    1942  65    -14       53
  MINIMUM         40    509 AM  30    1873  44     -4       43
  AVERAGE         46                        54     -8       48

PRECIPITATION (IN)
  TODAY            0.00          2.22 2003   0.12  -0.12     0.01
  MONTH TO DATE    2.87                      3.38  -0.51     2.84
  SINCE MAR 1      3.97                      5.88  -1.91     4.55
  SINCE JAN 1      6.83                      9.40  -2.57     9.85

SNOWFALL (IN)
  TODAY            0.0           0.1  1907   0.0    0.0      0.0
  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

DEGREE DAYS
 HEATING
  TODAY           19                        11      8       17
  MONTH TO DATE  459                       493    -34      488
  SINCE MAR 1   1369                      1333     36     1513
  SINCE JUL 1   6549                      6067    482     6928

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         9     -9        1
  SINCE MAR 1      0                        10    -10        1
  SINCE JAN 1      0                        10    -10        1
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     N (20)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    NE (30)
  AVERAGE WIND SPEED    13.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    76           500 AM
 LOWEST     56           900 AM
 AVERAGE    66

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   65        90      1951
 MINIMUM TEMPERATURE (F)   44        30      1943


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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