Climatological Report (Daily)
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000
CDUS43 KLOT 310636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1235 AM CST SAT JAN 31 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 30 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         30    246 PM  55    1988  32     -2       33
  MINIMUM         18   1100 PM -15    1966  17      1       20
                                      1951
  AVERAGE         24                        24      0       27

PRECIPITATION (IN)
  YESTERDAY        T             0.97 1939   0.05  -0.05      T
  MONTH TO DATE    1.29                      1.68  -0.39     2.81
  SINCE DEC 1      2.08                      3.93  -1.85     4.75
  SINCE JAN 1      1.29                      1.68  -0.39     2.81

SNOWFALL (IN)
  YESTERDAY        T            14.9  1939   0.4   -0.4      0.4
  MONTH TO DATE   12.6                      10.4    2.2     33.5
  SINCE DEC 1     12.6                      18.9   -6.3     47.7
  SINCE JUL 1     15.5                      20.3   -4.8     48.6
  SNOW DEPTH       1

DEGREE DAYS
 HEATING
  YESTERDAY       41                        41      0       38
  MONTH TO DATE 1280                      1238     42     1479
  SINCE DEC 1   2295                      2393    -98     2762
  SINCE JUL 1   3738                      3649     89     4045

 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     N (350)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     N (10)
  AVERAGE WIND SPEED     7.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    73          1100 PM
 LOWEST     42          1100 AM
 AVERAGE    58

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   32        65      1989
 MINIMUM TEMPERATURE (F)   17       -12      1985
                                             1899


SUNRISE AND SUNSET
JANUARY 31 2015.......SUNRISE   706 AM CST   SUNSET   505 PM CST
FEBRUARY  1 2015......SUNRISE   705 AM CST   SUNSET   506 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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