Climatological Report (Daily)
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CDUS43 KLOT 190639
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1239 AM CST SUN FEB 19 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 18 2017...

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)
 YESTERDAY
  MAXIMUM         70R   345 PM  62    1981  36     34       42
                                      1961
  MINIMUM         40   1159 PM -14    1936  21     19       23
  AVERAGE         55                        28     27       33

PRECIPITATION (IN)
  YESTERDAY        0.00          1.15 1908   0.07  -0.07     0.00
  MONTH TO DATE    0.47                      1.04  -0.57     1.00
  SINCE DEC 1      5.11                      5.02   0.09     6.71
  SINCE JAN 1      3.34                      2.77   0.57     1.84

SNOWFALL (IN)
  YESTERDAY        0.0          11.5  1908   0.3   -0.3      0.0
  MONTH TO DATE    T                         6.2   -6.2      3.8
  SINCE DEC 1     18.3                      25.2   -6.9     14.6
  SINCE JUL 1     18.3                      26.6   -8.3     25.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       10                        36    -26       32
  MONTH TO DATE  567                       698   -131      714
  SINCE DEC 1   2915                      3132   -217     2753
  SINCE JUL 1   3744                      4388   -644     3726

 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    15   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     6.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    70          1100 PM
 LOWEST     26           200 PM
 AVERAGE    48

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   37        65      1930
 MINIMUM TEMPERATURE (F)   21        -8      2015


SUNRISE AND SUNSET
FEBRUARY 19 2017......SUNRISE   641 AM CST   SUNSET   530 PM CST
FEBRUARY 20 2017......SUNRISE   640 AM CST   SUNSET   531 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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