Climatological Report (Daily)
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988
CDUS43 KLOT 130636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1235 AM CST MON FEB 13 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 12 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         47    139 PM  62    1984  34     13       23
                                      1882
  MINIMUM         31   1159 PM -17    1899  19     12        7
  AVERAGE         39                        27     12       15

PRECIPITATION (IN)
  YESTERDAY        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)
  YESTERDAY        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
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       26                        38    -12       50
  MONTH TO DATE  422                       475    -53      461
  SINCE DEC 1   2770                      2909   -139     2500
  SINCE JUL 1   3599                      4165   -566     3473

 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    36   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    46   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED    15.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


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

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


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


SUNRISE AND SUNSET
FEBRUARY 13 2017......SUNRISE   650 AM CST   SUNSET   522 PM CST
FEBRUARY 14 2017......SUNRISE   648 AM CST   SUNSET   524 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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