Climatological Report (Daily)
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CDUS43 KLOT 122243
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
442 PM CST SUN FEB 12 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR FEBRUARY 12 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         47    139 PM  62    1984  34     13       23
                                      1882
  MINIMUM         35    801 AM -17    1899  19     16        7
  AVERAGE         41                        27     14       15

PRECIPITATION (IN)
  TODAY            T             1.13 1884   0.06  -0.06      T
  MONTH TO DATE    0.47                      0.65  -0.18     0.85
  SINCE DEC 1      5.11                      4.63   0.48     6.56
  SINCE JAN 1      3.34                      2.38   0.96     1.69

SNOWFALL (IN)
  TODAY            0.0           7.9  1894   0.3   -0.3       T
  MONTH TO DATE    T                         4.2   -4.2      1.0
  SINCE DEC 1     18.3                      23.2   -4.9     11.8
  SINCE JUL 1     18.3                      24.6   -6.3     23.0

DEGREE DAYS
 HEATING
  TODAY           24                        38    -14       50
  MONTH TO DATE  420                       475    -55      461
  SINCE DEC 1   2768                      2909   -141     2500
  SINCE JUL 1   3597                      4165   -568     3473

 COOLING
  TODAY            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    36   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    46   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED    17.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           300 AM
 LOWEST     27           400 PM
 AVERAGE    58

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        63      1938
 MINIMUM TEMPERATURE (F)   19       -18      1905


SUNRISE AND SUNSET
FEBRUARY 12 2017......SUNRISE   651 AM CST   SUNSET   521 PM CST
FEBRUARY 13 2017......SUNRISE   650 AM CST   SUNSET   522 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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