Climatological Report (Daily)
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CDUS43 KLOT 010636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1236 AM CST SUN FEB 1 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 31 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         36    358 PM  65    1989  32      4       28
  MINIMUM         19   1211 AM -12    1985  17      2       17
                                      1899
  AVERAGE         28                        24      4       23

PRECIPITATION (IN)
  YESTERDAY        0.12          1.52 1914   0.05   0.07     0.01
  MONTH TO DATE    1.41                      1.73  -0.32     2.82
  SINCE DEC 1      2.20                      3.98  -1.78     4.76
  SINCE JAN 1      1.41                      1.73  -0.32     2.82

SNOWFALL (IN)
  YESTERDAY        1.3           9.5  1914   0.4    0.9      0.2
  MONTH TO DATE   13.9                      10.8    3.1     33.7
  SINCE DEC 1     13.9                      19.3   -5.4     47.9
  SINCE JUL 1     16.8                      20.7   -3.9     48.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       37                        41     -4       42
  MONTH TO DATE 1317                      1279     38     1521
  SINCE DEC 1   2332                      2434   -102     2804
  SINCE JUL 1   3775                      3690     85     4087

 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    16   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     7.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           900 PM
 LOWEST     59          1200 PM
 AVERAGE    76

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   32        56      1968
 MINIMUM TEMPERATURE (F)   17       -14      1985


SUNRISE AND SUNSET
FEBRUARY  1 2015......SUNRISE   705 AM CST   SUNSET   506 PM CST
FEBRUARY  2 2015......SUNRISE   704 AM CST   SUNSET   508 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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