Climatological Report (Daily)
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CDUS43 KLOT 042243
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
442 PM CST SAT FEB 4 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR FEBRUARY 4 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         33    242 PM  59    1890  32      1       32
  MINIMUM         10    708 AM -14    1996  17     -7       19
  AVERAGE         22                        25     -3       26

PRECIPITATION (IN)
  TODAY            0.00          1.26 1924   0.05  -0.05     0.00
  MONTH TO DATE    T                         0.20  -0.20     0.81
  SINCE DEC 1      4.64                      4.18   0.46     6.52
  SINCE JAN 1      2.87                      1.93   0.94     1.65

SNOWFALL (IN)
  TODAY            0.0           4.3  1932   0.3   -0.3      0.0
  MONTH TO DATE    T                         1.4   -1.4       T
  SINCE DEC 1     18.3                      20.4   -2.1     10.8
  SINCE JUL 1     18.3                      21.8   -3.5     22.0

DEGREE DAYS
 HEATING
  TODAY           43                        40      3       39
  MONTH TO DATE  168                       161      7      128
  SINCE DEC 1   2516                      2595    -79     2167
  SINCE JUL 1   3345                      3851   -506     3140

 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    23   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED    10.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    80           800 AM
 LOWEST     33           300 PM
 AVERAGE    57

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   32        56      1946
 MINIMUM TEMPERATURE (F)   18       -17      1979


SUNRISE AND SUNSET
FEBRUARY  4 2017......SUNRISE   701 AM CST   SUNSET   511 PM CST
FEBRUARY  5 2017......SUNRISE   700 AM CST   SUNSET   512 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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