Climatological Report (Daily)
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CDUS43 KLOT 022234
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CST SAT DEC 2 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR DECEMBER 2 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         54    316 PM  71    1982  40     14       40
  MINIMUM         33    701 AM  -1    1942  25      8       34
                                      1893
  AVERAGE         44                        32     12       37

PRECIPITATION (IN)
  TODAY            0.00          4.47 1982   0.10  -0.10      T
  MONTH TO DATE    0.00                      0.19  -0.19      T
  SINCE DEC 1      0.00                      0.19  -0.19      T
  SINCE JAN 1     42.51                     34.83   7.68    34.20

SNOWFALL (IN)
  TODAY            0.0           5.6  1991   0.2   -0.2      0.0
  MONTH TO DATE    0.0                       0.4   -0.4       T
  SINCE DEC 1      0.0                       0.4   -0.4       T
  SINCE JUL 1      0.1                       1.8   -1.7       T

DEGREE DAYS
 HEATING
  TODAY           21                        33    -12       28
  MONTH TO DATE   45                        65    -20       55
  SINCE DEC 1     45                        65    -20       55
  SINCE JUL 1   1088                      1321   -233      884

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    991                       843    148     1157
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    SW (230)
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED     5.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    76           500 AM
 LOWEST     41           200 PM
 AVERAGE    59

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   39        71      1970
 MINIMUM TEMPERATURE (F)   25        -5      1940


SUNRISE AND SUNSET
DECEMBER  2 2017......SUNRISE   701 AM CST   SUNSET   421 PM CST
DECEMBER  3 2017......SUNRISE   702 AM CST   SUNSET   421 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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