Chicago Weather O'Hare Data October 31 2014 -- First Time for Measurable Snow (.01") on Halloween

31	23:51	N 16 G 24	10.00	Light Snow	OVC039	35	21			57%	25	NA	30.34	1028.0
31	22:51	N 16	9.00	Light Snow	BKN038 OVC048	34	24			67%	24	NA	30.34	1028.0	0.01
31	21:51	N 18	9.00	Light Snow	BKN038 OVC050	36	21			55%	26	NA	30.34	1028.1
31	20:51	N 24 G 33	9.00	Light Snow and Breezy	OVC045	36	19			50%	24	NA	30.32	1027.3
31	19:51	N 22 G 32	10.00	Overcast and Breezy	FEW038 BKN049 OVC060	37	20			50%	26	NA	30.32	1027.3
31	18:51	N 25 G 35	10.00	Overcast and Breezy	BKN043 OVC050	37	19	41	37	48%	25	NA	30.30	1026.7
31	17:51	N 25 G 37	10.00	Overcast and Breezy	OVC045	38	19			46%	27	NA	30.28	1026.1
31	16:51	N 29 G 38	10.00	Overcast and Windy	BKN045 OVC050	38	20			48%	26	NA	30.25	1024.8
31	15:51	N 29 G 37	10.00	Overcast and Windy	OVC043	39	21			48%	27	NA	30.22	1023.7
31	14:51	N 26 G 37	10.00	Overcast and Windy	OVC041	39	23			53%	28	NA	30.19	1022.8
31	13:51	N 33 G 47	10.00	Mostly Cloudy and Windy	BKN041	40	23			51%	28	NA	30.17	1022.0
31	12:51	N 32 G 43	10.00	Mostly Cloudy and Windy	BKN039 BKN060	41	24	41	33	51%	29	NA	30.15	1021.3			0.02
31	11:51	NW 29 G 41	10.00	Overcast and Windy	BKN037 OVC044	37	24			59%	25	NA	30.15	1021.5
31	10:51	N 30 G 43	10.00	Overcast and Windy	FEW024 BKN043 OVC100	37	25			62%	24	NA	30.15	1021.3
31	09:51	N 26 G 35	10.00	Mostly Cloudy and Windy	FEW028 BKN034 BKN046 BKN140	39	28			65%	28	NA	30.12	1020.4		0.02
31	08:51	N 20 G 30	10.00	Mostly Cloudy	FEW020 BKN030 BKN130	37	31			79%	27	NA	30.11	1020.1
31	07:51	NW 17	7.00	Light Snow	BKN016 OVC021	34	31			89%	23	NA	30.10	1019.8	0.02
31	06:51	NW 23 G 29	10.00	Mostly Cloudy and Breezy	BKN030 BKN090	36	26	47	36	67%	24	NA	30.08	1019.0
31	05:51	NW 25 G 31	10.00	Overcast and Breezy	SCT028 BKN035 OVC080	39	28			65%	28	NA	30.06	1018.2
31	04:51	N 15 G 22	10.00	Overcast	FEW025 OVC060	42	31			65%	34	NA	30.04	1017.4
31	03:51	NW 17	10.00	Light Rain	OVC048	43	36			76%	35	NA	30.03	1017.1
31	02:51	N 22 G 28	10.00	Light Rain and Breezy	BKN025 OVC030	44	33			65%	35	NA	30.03	1017.0
31	01:51	NW 10	10.00	Overcast	OVC041	47	36			66%	42	NA	30.01	1016.6
31	00:51	W 9	10.00	Overcast	BKN044 OVC060	47	36	48	45	66%	43	NA	30.02	1016.7

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

Chicago’s O’Hare International Airport canceled more than 700 incoming and outgoing flights by Friday night because of heavy winds, rain and snow, according to FlightAware.com.

HOMETOWN WEATHER: Arlington Heights Weather Forecast -- Arlingtoncardinal.com/weather

LIVE RADAR | STORM TRACKS | CLOUDS INFRARED SAT | CLOUDS VISIBLE SAT (during daylight)

WunderMap® with Temperature/Wind Data || Google: O'Hare  Temps | NE Illinois Temps
Full Screen Motion Weather Radar (Wunderground.com) Midwest Cloud Cover and Arlington Heights Weather Forecast

SUNLIGHT DATA FOR SECURITY, TRAFFIC SAFETY, AND SPORTS
SunCalc.net data with azimuth & trajectory, times for dawn, sunrise, solar noon, sunset, dusk ...