Climatological Report (Daily)
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000
CDUS43 KLOT 191216
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1237 AM CST FRI JAN 19 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 18 2018...

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)
 YESTERDAY
  MAXIMUM         32    402 PM  61    1996  31      1       36
  MINIMUM         16    712 AM -21    1994  16      0       30
  AVERAGE         24                        23      1       33

PRECIPITATION (IN)
  YESTERDAY        0.00          1.51 1876   0.05  -0.05      T
  MONTH TO DATE    0.63                      1.07  -0.44     2.09
  SINCE DEC 1      1.22                      3.32  -2.10     3.86
  SINCE JAN 1      0.63                      1.07  -0.44     2.09

SNOWFALL (IN)
  YESTERDAY        0.0           5.3  1943   0.4   -0.4      0.0
  MONTH TO DATE    3.8                       6.1   -2.3      0.4
  SINCE DEC 1      9.1                      14.3   -5.2     18.1
  SINCE JUL 1      9.2                      15.7   -6.5     18.1
  SNOW DEPTH       2

DEGREE DAYS
 HEATING
  YESTERDAY       41                        42     -1       32
  MONTH TO DATE  859                       742    117      729
  SINCE DEC 1   2024                      1897    127     1960
  SINCE JUL 1   3067                      3153    -86     2789

 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    22   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED    15.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    74           800 AM
 LOWEST     54           200 PM
 AVERAGE    64

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        57      1933
 MINIMUM TEMPERATURE (F)   16       -23      1985


SUNRISE AND SUNSET
JANUARY 19 2018.......SUNRISE   715 AM CST   SUNSET   450 PM CST
JANUARY 20 2018.......SUNRISE   714 AM CST   SUNSET   452 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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