Climatological Report (Daily)
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000
CDUS43 KLOT 182247
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CST SUN JAN 18 2015

...................................
...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR JANUARY 18 2015...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         40   314 PM     61  1996    31      9       21
  MINIMUM         34   929 AM    -21  1994    16     18        7
  AVERAGE         37                          23     14       14

PRECIPITATION (IN)
  TODAY           T             1.51  1876  0.05  -0.05     0.12
  MONTH TO DATE   1.11                      1.07   0.04     2.37
  SINCE DEC 1     1.90                      3.32  -1.42     4.31
  SINCE JAN 1     1.11                      1.07   0.04     2.37

SNOWFALL (IN)
  TODAY            T             5.3  1943   0.4   -0.4      2.4
  MONTH TO DATE   10.8                       6.1    4.7     23.8
  SINCE DEC 1     10.8                      14.6   -3.8     38.0
  SINCE JUL 1     13.7                      16.0   -2.3     38.9

DEGREE DAYS
 HEATING
  TODAY             28                        42    -14       51
  MONTH TO DATE    849                       742    107      850
  SINCE DEC 1     1864                      1897    -33     2133
  SINCE JUL 1     3307                      3153    154     3416

 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    20   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED    12.3

SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8

WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT SNOW

RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           800 AM
 LOWEST     64           100 PM
 AVERAGE    77
..........................................................

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

SUNRISE AND SUNSET
JANUARY 18 2015.......SUNRISE   716 AM CST   SUNSET   449 PM CST
JANUARY 19 2015.......SUNRISE   715 AM CST   SUNSET   450 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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