Climatological Report (Daily)
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CDUS43 KLOT 010635
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT FRI MAY 1 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 30 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         51    100 PM  91    1942  65    -14       53
  MINIMUM         38   1051 PM  30    1873  44     -6       43
  AVERAGE         45                        54     -9       48

PRECIPITATION (IN)
  YESTERDAY        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)
  YESTERDAY        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
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       20                        11      9       17
  MONTH TO DATE  460                       493    -33      488
  SINCE MAR 1   1370                      1333     37     1513
  SINCE JUL 1   6550                      6067    483     6928

 COOLING
  YESTERDAY        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    11.5


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    85          1100 PM
 LOWEST     56           900 AM
 AVERAGE    71

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


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


SUNRISE AND SUNSET
MAY  1 2015...........SUNRISE   548 AM CDT   SUNSET   750 PM CDT
MAY  2 2015...........SUNRISE   547 AM CDT   SUNSET   751 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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