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MOBILE DEVICE? Turn sideways. Weather conditions directly above are near Lakefront. Top tabs refer to O'Hare (official).

Archives for the SPC Convective Outlook are updated daily (approximately) with a live map at the beginning of each article. Follow the link at the end of the article to check for current updates on the NOAA/NWS Storm Prediction Center website. Also, see Archives for Chicago's hourly weather data on CARDINAL NEWS Magazine.

ARLINGTON HEIGHTS WEATHER

Friday, December 18, 2015

Chicago High Temperature; Chicago Low Temperature December 18, 2015 (Official)

D
a
t
e		Time
(cst)		Wind
(mph)		Vis.
(mi.)		WeatherSky Cond.Temperature (ºF)Relative
Humidity		Wind
Chill
(°F)		Heat
Index
(°F)		PressurePrecipitation (in.)
AirDwpt6 houraltimeter
(in)		sea level
(mb)		1 hr3 hr6 hr
Max.

1823:51W 18 G 2510.00A Few CloudsFEW019 FEW0442417312475%10NA30.111020.4
1822:51W 1310.00Light SnowFEW020 BKN044272075%16NA30.081019.3
1821:51W 1010.00OvercastFEW043 OVC055262284%16NA30.061018.8
1820:51NW 710.00Partly CloudySCT070252185%17NA30.041018.2
1819:51W 1010.00Mostly CloudySCT040 BKN050292275%20NA30.011016.9
1818:51W 710.00Mostly CloudySCT043 BKN055312064%24NA29.991016.3
1817:51SW 510.00Mostly CloudyBKN060 BKN070 BKN0903118322759%26NA29.981015.9
1816:51W 1010.00OvercastOVC060321754%24NA29.971015.8
1815:51W 1010.00Mostly CloudyFEW042 BKN050 BKN080311756%22NA29.971015.6
1814:51SW 17 G 2510.00Partly CloudySCT037 SCT065311654%20NA29.951015.1
1813:51W 1410.00Partly CloudyFEW029 SCT038281866%17NA29.951015.2
1812:51W 17 G 2910.00Mostly CloudySCT040 BKN060281456%16NA29.971015.5
1811:51W 22 G 3110.00Partly Cloudy and BreezySCT0382812282551%14NA29.971015.6
1810:51W 24 G 3110.00Partly Cloudy and BreezySCT039271253%12NA29.971015.8
1809:51W 21 G 2910.00Partly Cloudy and BreezySCT029 SCT035251360%10NA29.961015.5
1808:51W 15 G 2410.00Partly CloudySCT032251463%13NA29.941014.7
1807:51W 20 G 2610.00Mostly CloudyBKN038261460%12NA29.931014.3
1806:51W 810.00OvercastOVC034261769%18NA29.921013.9
1805:51W 1010.00OvercastOVC0362615282563%16NA29.921014.0
1804:51W 810.00OvercastOVC035251463%16NA29.921014.0
1803:51W 12 G 2310.00Partly CloudyFEW035 SCT100251566%14NA29.921014.1
1802:51W 1010.00A Few CloudsFEW250261666%16NA29.931014.4
1801:51W 14 G 2110.00A Few CloudsFEW150 FEW250271663%16NA29.931014.1

Complete data after midnight (may be delayed 24-48 hours).

CHICAGO O'HARE CURRENT AND HISTORY (3-DAY) ... | NWS Chicago Office OBSERVED WEATHER REPORTS

SUMMARY:

Weather Underground Historical 24-Hour Weather Radar for Friday, December 18, 2015 …

Twitter group from National Weather Service Chicago, Local Chicago Media, and The Weather Channel.



CLIMATE DATA FROM THE NATIONAL WEATHER SERVICE CHICAGO OFFICE ...

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000
CDUS43 KLOT 190647
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1247 AM CST SAT DEC 19 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 18 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         32    540 PM  62    1877  34     -2       28
  MINIMUM         24   1159 PM -11    1983  20      4       19
  AVERAGE         28                        27      1       24

PRECIPITATION (IN)
  YESTERDAY        T             1.41 2002   0.06  -0.06     0.00
  MONTH TO DATE    1.75                      1.45   0.30     0.28
  SINCE DEC 1      1.75                      1.45   0.30     0.28
  SINCE JAN 1     36.73                     36.09   0.64    38.96

SNOWFALL (IN)
  YESTERDAY        0.2           6.7  1929   0.2    0.0      0.0
  MONTH TO DATE    1.5                       4.3   -2.8       T
  SINCE DEC 1      1.5                       4.3   -2.8       T
  SINCE JUL 1     12.7                       5.7    7.0      2.9
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       37                        38     -1       41
  MONTH TO DATE  426                       640   -214      582
  SINCE DEC 1    426                       640   -214      582
  SINCE JUL 1   1399                      1896   -497     2025

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    806                       843    -37      799
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    13.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    88           900 PM
 LOWEST     50          1200 PM
 AVERAGE    69

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   34        64      1877
 MINIMUM TEMPERATURE (F)   20       -14      1983


SUNRISE AND SUNSET
DECEMBER 19 2015......SUNRISE   715 AM CST   SUNSET   422 PM CST
DECEMBER 20 2015......SUNRISE   716 AM CST   SUNSET   423 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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