Climatological Report (Daily)
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514
CDUS43 KLOT 122248
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
448 PM CST FRI JAN 12 2018


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR JANUARY 12 2018...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         23    650 AM  62    2005  31     -8       28
                                      1890
  MINIMUM         20    359 PM -14    1918  16      4       19
  AVERAGE         22                        24     -2       24

PRECIPITATION (IN)
  TODAY            T             2.76 1960   0.06  -0.06     0.05
  MONTH TO DATE    0.40                      0.74  -0.34     0.71
  SINCE DEC 1      0.99                      2.99  -2.00     2.48
  SINCE JAN 1      0.40                      0.74  -0.34     0.71

SNOWFALL (IN)
  TODAY            T             8.1  1908   0.4   -0.4      0.2
  MONTH TO DATE    0.1                       4.0   -3.9      0.4
  SINCE DEC 1      5.4                      12.2   -6.8     18.1
  SINCE JUL 1      5.5                      13.6   -8.1     18.1

DEGREE DAYS
 HEATING
  TODAY           43                        41      2       41
  MONTH TO DATE  561                       492     69      521
  SINCE DEC 1   1726                      1647     79     1752
  SINCE JUL 1   2769                      2903   -134     2581

 COOLING
  TODAY            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    29   HIGHEST WIND DIRECTION     N (360)
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION     N (10)
  AVERAGE WIND SPEED    19.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT SNOW


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    77           200 AM
 LOWEST     62           900 AM
 AVERAGE    70

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


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


SUNRISE AND SUNSET
JANUARY 12 2018.......SUNRISE   718 AM CST   SUNSET   442 PM CST
JANUARY 13 2018.......SUNRISE   718 AM CST   SUNSET   443 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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