Climatological Report (Daily)
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000
CDUS43 KLOT 012236
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CST WED FEB 1 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR FEBRUARY 1 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         38    310 PM  56    1968  32      6       45
  MINIMUM         30    659 AM -14    1985  17     13       30
  AVERAGE         34                        24     10       38

PRECIPITATION (IN)
  TODAY            T             0.87 2015   0.05  -0.05     0.00
  MONTH TO DATE    T                         0.05  -0.05     0.00
  SINCE DEC 1      4.64                      4.03   0.61     5.71
  SINCE JAN 1      2.87                      1.78   1.09     0.84

SNOWFALL (IN)
  TODAY            T            16.2  2015   0.4   -0.4      0.0
  MONTH TO DATE    T                         0.4   -0.4      0.0
  SINCE DEC 1     18.3                      19.4   -1.1     10.8
  SINCE JUL 1     18.3                      20.8   -2.5     22.0

DEGREE DAYS
 HEATING
  TODAY           31                        41    -10       27
  MONTH TO DATE   31                        41    -10       27
  SINCE DEC 1   2379                      2475    -96     2066
  SINCE JUL 1   3208                      3731   -523     3039

 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    22   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED    11.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           700 AM
 LOWEST     44           400 PM
 AVERAGE    68

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   32        51      1992
 MINIMUM TEMPERATURE (F)   17       -16      1996


SUNRISE AND SUNSET
FEBRUARY  1 2017......SUNRISE   704 AM CST   SUNSET   507 PM CST
FEBRUARY  2 2017......SUNRISE   703 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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