Climatological Report (Daily)
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000
CDUS43 KLOT 280638
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1237 AM CST WED JAN 28 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 27 2015...

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)
 YESTERDAY
  MAXIMUM         32   1258 PM  62    1916  31      1        6
  MINIMUM         20   1104 PM -10    1955  16      4       -7
  AVERAGE         26                        24      2        0

PRECIPITATION (IN)
  YESTERDAY        T             0.74 1967   0.05  -0.05     0.00
  MONTH TO DATE    1.27                      1.53  -0.26     2.81
  SINCE DEC 1      2.06                      3.78  -1.72     4.75
  SINCE JAN 1      1.27                      1.53  -0.26     2.81

SNOWFALL (IN)
  YESTERDAY        T             6.6  1967   0.3   -0.3      0.0
  MONTH TO DATE   12.5                       9.3    3.2     33.1
  SINCE DEC 1     12.5                      17.8   -5.3     47.3
  SINCE JUL 1     15.4                      19.2   -3.8     48.2
  SNOW DEPTH       1

DEGREE DAYS
 HEATING
  YESTERDAY       39                        41     -2       65
  MONTH TO DATE 1168                      1115     53     1319
  SINCE DEC 1   2183                      2270    -87     2602
  SINCE JUL 1   3626                      3526    100     3885

 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    13   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     6.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92          1200 AM
 LOWEST     53           400 PM
 AVERAGE    73

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        60      1914
                                             1876
 MINIMUM TEMPERATURE (F)   17       -13      1977
                                             1963


SUNRISE AND SUNSET
JANUARY 28 2015.......SUNRISE   708 AM CST   SUNSET   501 PM CST
JANUARY 29 2015.......SUNRISE   707 AM CST   SUNSET   502 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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