Climatological Report (Daily)
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000
CDUS43 KLOT 130632
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
131 AM CDT WED MAY 13 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 12 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         56    358 PM  92    1956  69    -13       84
  MINIMUM         44   1110 PM  31    1981  47     -3       64
  AVERAGE         50                        58     -8       74

PRECIPITATION (IN)
  YESTERDAY        T             2.67 1935   0.12  -0.12     2.09
  MONTH TO DATE    2.81                      1.39   1.42     3.48
  SINCE MAR 1      6.78                      7.27  -0.49     8.03
  SINCE JAN 1      9.64                     10.79  -1.15    13.33

SNOWFALL (IN)
  YESTERDAY        0.0           T    1923   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  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                         8      7        0
  MONTH TO DATE   76                       114    -38       91
  SINCE MAR 1   1446                      1447     -1     1604
  SINCE JUL 1   6626                      6181    445     7019

 COOLING
  YESTERDAY        0                         1     -1        9
  MONTH TO DATE   12                        10      2       16
  SINCE MAR 1     12                        20     -8       17
  SINCE JAN 1     12                        20     -8       17
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    38   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED    16.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    68          1200 PM
 LOWEST     51           400 PM
 AVERAGE    60

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        89      1991
                                             1956
 MINIMUM TEMPERATURE (F)   47        34      1996
                                             1888


SUNRISE AND SUNSET
MAY 13 2015...........SUNRISE   534 AM CDT   SUNSET   803 PM CDT
MAY 14 2015...........SUNRISE   533 AM CDT   SUNSET   804 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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