Climatological Report (Daily)
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CDUS43 KLOT 180635
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1234 AM CST WED FEB 18 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 17 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         19   1039 AM  60    1880  36    -17       28
  MINIMUM          8   1159 PM -11    1903  21    -13       23
  AVERAGE         14                        28    -14       26

PRECIPITATION (IN)
  YESTERDAY        T             1.10 2008   0.06  -0.06     0.35
  MONTH TO DATE    1.07                      0.97   0.10     1.32
  SINCE DEC 1      3.27                      4.95  -1.68     6.08
  SINCE JAN 1      2.48                      2.70  -0.22     4.14

SNOWFALL (IN)
  YESTERDAY        0.1           8.5  1893   0.4   -0.3      5.0
  MONTH TO DATE   20.4                       5.9   14.5     19.1
  SINCE DEC 1     34.3                      25.2    9.1     67.0
  SINCE JUL 1     37.2                      26.6   10.6     67.9
  SNOW DEPTH       5

DEGREE DAYS
 HEATING
  YESTERDAY       51                        37     14       39
  MONTH TO DATE  798                       662    136      876
  SINCE DEC 1   3130                      3096     34     3680
  SINCE JUL 1   4573                      4352    221     4963

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    12.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    80           600 AM
 LOWEST     54           200 PM
 AVERAGE    67

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   36        62      1981
                                             1961
 MINIMUM TEMPERATURE (F)   21       -14      1936


SUNRISE AND SUNSET
FEBRUARY 18 2015......SUNRISE   644 AM CST   SUNSET   528 PM CST
FEBRUARY 19 2015......SUNRISE   642 AM CST   SUNSET   529 PM CST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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