Climatological Report (Daily)
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CDUS43 KLOT 130634
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1233 AM CST FRI JAN 13 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 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         28   1212 AM  62    2005  31     -3       20
                                      1890
  MINIMUM         19   1159 PM -14    1918  16      3        3
  AVERAGE         24                        24      0       12

PRECIPITATION (IN)
  YESTERDAY        0.05          2.76 1960   0.06  -0.01     0.01
  MONTH TO DATE    0.71                      0.74  -0.03     0.59
  SINCE DEC 1      2.48                      2.99  -0.51     5.46
  SINCE JAN 1      0.71                      0.74  -0.03     0.59

SNOWFALL (IN)
  YESTERDAY        0.2           8.1  1908   0.4   -0.2      0.1
  MONTH TO DATE    0.4                       4.0   -3.6      4.9
  SINCE DEC 1     18.1                      12.2    5.9      9.4
  SINCE JUL 1     18.1                      13.6    4.5     20.6
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       41                        41      0       53
  MONTH TO DATE  521                       492     29      476
  SINCE DEC 1   1752                      1647    105     1276
  SINCE JUL 1   2581                      2903   -322     2249

 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    17   HIGHEST WIND DIRECTION     N (20)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     N (350)
  AVERAGE WIND SPEED    11.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  LT FREEZING RAIN
  SNOW
  LIGHT SNOW
  SLEET
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           500 AM
 LOWEST     57           900 PM
 AVERAGE    77

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        58      1932
 MINIMUM TEMPERATURE (F)   16        -9      1929
                                             1888


SUNRISE AND SUNSET
JANUARY 13 2017.......SUNRISE   718 AM CST   SUNSET   444 PM CST
JANUARY 14 2017.......SUNRISE   717 AM CST   SUNSET   445 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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