Climatological Report (Daily)
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CDUS43 KLOT 280641
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1240 AM CST TUE FEB 28 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 27 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         54    414 PM  75    1976  40     14       54
  MINIMUM         27    434 AM  -6    1897  24      3       28
                                      1879
  AVERAGE         41                        32      9       41

PRECIPITATION (IN)
  YESTERDAY        0.00          1.08 1876   0.08  -0.08     0.00
  MONTH TO DATE    0.87                      1.71  -0.84     1.15
  SINCE DEC 1      5.51                      5.69  -0.18     6.86
  SINCE JAN 1      3.74                      3.44   0.30     1.99

SNOWFALL (IN)
  YESTERDAY        0.0           2.9  1954   0.2   -0.2      0.0
  MONTH TO DATE    T                         8.8   -8.8      5.5
  SINCE DEC 1     18.3                      27.8   -9.5     16.3
  SINCE JUL 1     18.3                      29.2  -10.9     27.5
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       24                        33     -9       24
  MONTH TO DATE  737                      1010   -273      955
  SINCE DEC 1   3085                      3444   -359     2994
  SINCE JUL 1   3914                      4700   -786     3967

 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    16   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED     7.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    81           400 AM
 LOWEST     45           400 PM
 AVERAGE    63

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   40        62      2016
 MINIMUM TEMPERATURE (F)   24       -10      2015


SUNRISE AND SUNSET
FEBRUARY 28 2017......SUNRISE   628 AM CST   SUNSET   541 PM CST
MARCH  1 2017.........SUNRISE   626 AM CST   SUNSET   542 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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