Climatological Report (Daily)
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000
CDUS43 KLOT 150637
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1237 AM CST MON JAN 15 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 14 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         21    415 PM  60    1928  31    -10       35
  MINIMUM          5    740 AM -14    1979  16    -11       21
  AVERAGE         13                        24    -11       28

PRECIPITATION (IN)
  YESTERDAY        0.08          1.10 1871   0.06   0.02     0.00
  MONTH TO DATE    0.48                      0.85  -0.37     0.71
  SINCE DEC 1      1.07                      3.10  -2.03     2.48
  SINCE JAN 1      0.48                      0.85  -0.37     0.71

SNOWFALL (IN)
  YESTERDAY        0.8           6.3  1929   0.3    0.5      0.0
  MONTH TO DATE    0.9                       4.6   -3.7      0.4
  SINCE DEC 1      6.2                      12.8   -6.6     18.1
  SINCE JUL 1      6.3                      14.2   -7.9     18.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       52                        41     11       37
  MONTH TO DATE  670                       574     96      601
  SINCE DEC 1   1835                      1729    106     1832
  SINCE JUL 1   2878                      2985   -107     2661

 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     S (160)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED     9.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84          1000 PM
 LOWEST     41           300 PM
 AVERAGE    63

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        60      1949
 MINIMUM TEMPERATURE (F)   16       -19      1979


SUNRISE AND SUNSET
JANUARY 15 2018.......SUNRISE   717 AM CST   SUNSET   446 PM CST
JANUARY 16 2018.......SUNRISE   717 AM CST   SUNSET   447 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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