Climatological Report (Daily)
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CDUS43 KLOT 290636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1236 AM CST THU JAN 29 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 28 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         34   1111 PM  60    1914  31      3        3
                                      1876
  MINIMUM         19    732 AM -13    1977  17      2      -11
                                      1963
  AVERAGE         27                        24      3       -4

PRECIPITATION (IN)
  YESTERDAY        0.01          0.71 1909   0.05  -0.04     0.00
  MONTH TO DATE    1.28                      1.58  -0.30     2.81
  SINCE DEC 1      2.07                      3.83  -1.76     4.75
  SINCE JAN 1      1.28                      1.58  -0.30     2.81

SNOWFALL (IN)
  YESTERDAY        0.0           2.4  2003   0.4   -0.4      0.0
  MONTH TO DATE   12.5                       9.7    2.8     33.1
  SINCE DEC 1     12.5                      18.2   -5.7     47.3
  SINCE JUL 1     15.4                      19.6   -4.2     48.2
  SNOW DEPTH       1

DEGREE DAYS
 HEATING
  YESTERDAY       38                        41     -3       69
  MONTH TO DATE 1206                      1156     50     1388
  SINCE DEC 1   2221                      2311    -90     2671
  SINCE JUL 1   3664                      3567     97     3954

 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    20   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     S (160)
  AVERAGE WIND SPEED    10.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    88           300 AM
 LOWEST     49          1100 AM
 AVERAGE    69

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        63      2013
 MINIMUM TEMPERATURE (F)   17       -16      1966
                                             1873


SUNRISE AND SUNSET
JANUARY 29 2015.......SUNRISE   707 AM CST   SUNSET   502 PM CST
JANUARY 30 2015.......SUNRISE   707 AM CST   SUNSET   504 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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