Climatological Report (Daily)
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153
CDUS43 KLOT 200634
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1232 AM CST MON FEB 20 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 19 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         69R   156 PM  65    1930  37     32       62
  MINIMUM         35    442 AM  -8    2015  21     14       41
  AVERAGE         52                        29     23       52

PRECIPITATION (IN)
  YESTERDAY        0.00          0.95 1994   0.07  -0.07     0.00
  MONTH TO DATE    0.47                      1.11  -0.64     1.00
  SINCE DEC 1      5.11                      5.09   0.02     6.71
  SINCE JAN 1      3.34                      2.84   0.50     1.84

SNOWFALL (IN)
  YESTERDAY        0.0           4.0  1898   0.3   -0.3      0.0
  MONTH TO DATE    T                         6.5   -6.5      3.8
  SINCE DEC 1     18.3                      25.5   -7.2     14.6
  SINCE JUL 1     18.3                      26.9   -8.6     25.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       13                        36    -23       13
  MONTH TO DATE  580                       734   -154      727
  SINCE DEC 1   2928                      3168   -240     2766
  SINCE JUL 1   3757                      4424   -667     3739

 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    13   HIGHEST WIND DIRECTION     E (100)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     E (100)
  AVERAGE WIND SPEED     3.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85           400 AM
 LOWEST     24           200 PM
 AVERAGE    55

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   37        64      1930
 MINIMUM TEMPERATURE (F)   22        -9      1896


SUNRISE AND SUNSET
FEBRUARY 20 2017......SUNRISE   640 AM CST   SUNSET   531 PM CST
FEBRUARY 21 2017......SUNRISE   638 AM CST   SUNSET   532 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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