Climatological Report (Daily)
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000
CDUS43 KLOT 210647
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1246 AM CST SAT FEB 21 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 20 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    810 PM  64    1930  37    -19       49
  MINIMUM         -7    514 AM  -9    1896  22    -29       34
  AVERAGE          6                        29    -23       42

PRECIPITATION (IN)
  YESTERDAY        0.01          1.16 2014   0.07  -0.06     1.16
  MONTH TO DATE    1.08                      1.18  -0.10     2.48
  SINCE DEC 1      3.28                      5.16  -1.88     7.24
  SINCE JAN 1      2.49                      2.91  -0.42     5.30

SNOWFALL (IN)
  YESTERDAY        0.2           2.8  1989   0.3   -0.1      0.1
  MONTH TO DATE   20.6                       6.8   13.8     19.2
  SINCE DEC 1     34.5                      26.1    8.4     67.1
  SINCE JUL 1     37.4                      27.5    9.9     68.0
  SNOW DEPTH       5

DEGREE DAYS
 HEATING
  YESTERDAY       59                        36     23       23
  MONTH TO DATE  986                       770    216      961
  SINCE DEC 1   3318                      3204    114     3765
  SINCE JUL 1   4761                      4460    301     5048

 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    24   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED    13.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    76           100 PM
 LOWEST     49           700 PM
 AVERAGE    63

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   37        67      1930
 MINIMUM TEMPERATURE (F)   22       -11      1873


SUNRISE AND SUNSET
FEBRUARY 21 2015......SUNRISE   639 AM CST   SUNSET   532 PM CST
FEBRUARY 22 2015......SUNRISE   638 AM CST   SUNSET   533 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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