Climatological Report (Daily)
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000
CDUS43 KLOT 170646
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1245 AM CST TUE FEB 17 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 16 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         18    602 PM  58    1921  36    -18       29
  MINIMUM          5    705 AM -10    1885  20    -15       17
  AVERAGE         12                        28    -16       23

PRECIPITATION (IN)
  YESTERDAY        0.00          1.94 1883   0.07  -0.07      T
  MONTH TO DATE    1.07                      0.91   0.16     0.97
  SINCE DEC 1      3.27                      4.89  -1.62     5.73
  SINCE JAN 1      2.48                      2.64  -0.16     3.79

SNOWFALL (IN)
  YESTERDAY        0.0           6.0  1997   0.3   -0.3       T
  MONTH TO DATE   20.3                       5.5   14.8     14.1
  SINCE DEC 1     34.2                      24.8    9.4     62.0
  SINCE JUL 1     37.1                      26.2   10.9     62.9
  SNOW DEPTH       5

DEGREE DAYS
 HEATING
  YESTERDAY       53                        37     16       42
  MONTH TO DATE  747                       625    122      837
  SINCE DEC 1   3079                      3059     20     3641
  SINCE JUL 1   4522                      4315    207     4924

 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    12   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     4.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    67           900 PM
 LOWEST     36           100 PM
 AVERAGE    52

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   36        60      1880
 MINIMUM TEMPERATURE (F)   21       -11      1903


SUNRISE AND SUNSET
FEBRUARY 17 2015......SUNRISE   645 AM CST   SUNSET   527 PM CST
FEBRUARY 18 2015......SUNRISE   644 AM CST   SUNSET   528 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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