Chicago Weather O'Hare Data February 18 2015

D a t e	Time (cst)	Wind (mph)	Vis. (mi.)	Weather	Sky Cond.	Temperature (ºF)				Relative Humidity	Wind Chill (°F)	Heat Index (°F)	Pressure		Precipitation (in.)
						Air	Dwpt	6 hour					altimeter (in)	sea level (mb)	1 hr	3 hr	6 hr
								Max.

18	23:51	NW 14	10.00	Fair	CLR	-3	-16	2	-3	53%	-23	NA	30.23	1025.6
18	22:51	NW 13	10.00	Fair	CLR	-2	-16			50%	-21	NA	30.23	1025.4
18	21:51	NW 17 G 23	10.00	A Few Clouds	FEW032	-1	-15			51%	-22	NA	30.22	1025.2
18	20:51	NW 14	10.00	A Few Clouds	FEW033	-0	-13			54%	-19	NA	30.21	1024.6
18	19:51	NW 12	10.00	Partly Cloudy	SCT038	1	-9			62%	-16	NA	30.20	1024.3
18	18:51	NW 13	10.00	A Few Clouds	FEW018	1	-11			56%	-17	NA	30.18	1023.6
18	17:51	NW 15	5.00	Light Snow	BKN018 BKN028	2	-7	8	2	65%	-17	NA	30.15	1022.6
18	16:51	NW 17	7.00	Light Snow	BKN038 BKN046	3	-8			60%	-17	NA	30.12	1021.6
18	15:51	NW 18 G 24	10.00	Mostly Cloudy	BKN040	5	-11			47%	-15	NA	30.09	1020.6
18	14:51	W 22 G 31	10.00	Mostly Cloudy and Breezy	BKN042	5	-10			49%	-16	NA	30.07	1019.9
18	13:51	W 21 G 28	9.00	Overcast and Breezy	OVC038	7	-8			50%	-13	NA	30.04	1018.8
18	12:51	NW 16 G 26	10.00	Mostly Cloudy	BKN032 BKN041 BKN200	7	-7			52%	-11	NA	30.02	1018.0
18	11:51	NW 21	10.00	Mostly Cloudy and Breezy	BKN031 BKN038 BKN200	7	-6	8	3	55%	-13	NA	30.00	1017.4
18	10:51	NW 20	10.00	Mostly Cloudy	BKN029 BKN035	7	-4			60%	-13	NA	29.98	1016.7
18	09:51	NW 20 G 29	10.00	Mostly Cloudy	BKN027 BKN045 BKN200	6	-4			63%	-14	NA	29.95	1015.7
18	08:51	NW 16	10.00	Partly Cloudy	SCT023 SCT065 SCT200	5	-4			66%	-14	NA	29.94	1015.1
18	07:51	NW 17	10.00	Partly Cloudy	FEW030 SCT060 SCT200	4	-4			69%	-15	NA	29.91	1014.3
18	06:51	NW 16	10.00	Partly Cloudy	FEW028 SCT050 SCT200	3	-3			76%	-16	NA	29.88	1013.3
18	05:51	NW 13	8.00	Light Snow	SCT021 OVC250	4	-2	8	4	76%	-13	NA	29.86	1012.6
18	04:51	W 9	10.00	Partly Cloudy	FEW030 SCT120	4	-2			76%	-10	NA	29.84	1011.9
18	03:51	W 9	10.00	A Few Clouds	FEW040 FEW120	5	-3			69%	-9	NA	29.84	1011.7
18	02:51	W 10	10.00	A Few Clouds	FEW095 FEW250	6	-3			66%	-8	NA	29.84	1011.7
18	01:51	W 14	10.00	A Few Clouds	FEW085 FEW250	6	-3			66%	-11	NA	29.85	1012.1
18	00:51	NW 10	10.00	A Few Clouds	FEW085 FEW250	7	-3			63%	-7	NA	29.85	1012.2

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

Chicago Weather O'Hare Data February 14 2015

D a t e	Time (cst)	Wind (mph)	Vis. (mi.)	Weather	Sky Cond.	Temperature (ºF)				Relative Humidity	Wind Chill (°F)	Heat Index (°F)	Pressure		Precipitation (in.)
						Air	Dwpt	6 hour					altimeter (in)	sea level (mb)	1 hr	3 hr	6 hr
								Max.

14	23:51	N 14	10.00	Fair	CLR	1	-13	5	1	51%	-18	NA	30.46	1033.2
14	22:51	N 14	10.00	Fair	CLR	2	-12			52%	-16	NA	30.45	1032.6
14	21:51	N 17	10.00	Fair	CLR	2	-11			54%	-18	NA	30.45	1032.9
14	20:51	NW 16	10.00	A Few Clouds	FEW030	3	-10			54%	-16	NA	30.45	1032.6
14	19:51	NW 17	10.00	A Few Clouds	FEW030	4	-10			52%	-15	NA	30.43	1032.1
14	18:51	NW 16	10.00	A Few Clouds	FEW030	4	-10			52%	-15	NA	30.40	1031.0
14	17:51	NW 18	10.00	A Few Clouds	FEW035	5	-9	11	5	52%	-15	NA	30.37	1029.7
14	16:51	N 21 G 28	10.00	A Few Clouds and Breezy	FEW040	6	-11			45%	-15	NA	30.31	1027.7
14	15:51	N 25 G 31	10.00	Partly Cloudy and Breezy	SCT040	7	-10			45%	-15	NA	30.27	1026.4
14	14:51	NW 25 G 32	10.00	Partly Cloudy and Breezy	SCT040	8	-7			50%	-13	NA	30.22	1024.7
14	13:51	N 23 G 36	10.00	Mostly Cloudy and Breezy	FEW035 BKN049 BKN055	8	-10			43%	-13	NA	30.18	1023.3
14	12:51	NW 29 G 39	10.00	Mostly Cloudy and Windy	BKN035 BKN047	10	-6			48%	-12	NA	30.15	1022.0
14	11:51	NW 29 G 39	7.00	Overcast and Windy	SCT029 BKN036 OVC047	10	-3	23	10	55%	-12	NA	30.11	1020.7
14	10:51	NW 26 G 37	7.00	Light Snow and Windy	FEW024 BKN036 BKN043	11	1			64%	-10	NA	30.06	1019.1
14	09:51	N 29 G 37	5.00	Light Snow Blowing Snow and Windy	SCT025 BKN034 OVC039	11	2			67%	-11	NA	30.01	1017.5
14	08:51	N 23 G 36	3.00	Light Snow Blowing Snow and Breezy	SCT025 BKN035 BKN050	12	5			73%	-7	NA	29.95	1015.4
14	07:51	NW 29 G 38	5.00	Light Snow and Windy	BKN028 OVC034	15	6			67%	-5	NA	29.89	1013.2
14	06:51	NW 21	1.25	Light Snow and Breezy	FEW017 BKN023 OVC028	20	14			78%	4	NA	29.82	1010.9
14	05:51	NW 17	9.00	Light Snow	OVC027	23	14	27	23	68%	9	NA	29.78	1009.3
14	04:51	N 15	10.00	Light Snow	OVC024	25	17			72%	13	NA	29.77	1009.0
14	03:51	W 10	10.00	Overcast	OVC031	27	18			69%	18	NA	29.79	1009.6
14	02:51	W 13 G 21	10.00	Overcast	OVC030	27	19			72%	16	NA	29.80	1010.0
14	01:51	W 9	10.00	Overcast	BKN030 OVC035	27	20			75%	18	NA	29.81	1010.3
14	00:51	W 8	10.00	Overcast	OVC028	26	19			75%	18	NA	29.84	1011.4

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

Chicago Weather O'Hare Data January 17 2015

D a t e	Time (cst)	Wind (mph)	Vis. (mi.)	Weather	Sky Cond.	Temperature (ºF)				Relative Humidity	Wind Chill (°F)	Heat Index (°F)	Pressure		Precipitation (in.)
						Air	Dwpt	6 hour					altimeter (in)	sea level (mb)	1 hr	3 hr	6 hr

17	23:51	W 12 G 22	10.00	Overcast	OVC034	37	31	40	37	79%	29	NA	29.64	1004.1
17	22:51	W 14	10.00	Overcast	FEW025 OVC037	37	31			79%	28	NA	29.64	1004.1
17	21:51	W 15	10.00	Overcast	OVC035	38	31			76%	29	NA	29.64	1004.1
17	20:51	W 16 G 24	10.00	Overcast	OVC036	38	32			79%	29	NA	29.63	1004.0
17	19:51	W 15	10.00	Overcast	SCT029 BKN110 OVC150	38	31			76%	29	NA	29.63	1003.8
17	18:51	W 17 G 24	10.00	Overcast	BKN070 BKN090 OVC150	39	31			73%	30	NA	29.63	1003.8
17	17:51	SW 18 G 24	10.00	Overcast	SCT150 BKN200 OVC250	40	31	42	39	70%	31	NA	29.62	1003.6
17	16:51	SW 13	10.00	Overcast	FEW150 BKN200 OVC250	40	32			73%	32	NA	29.60	1002.9
17	15:51	SW 13 G 22	10.00	Overcast	BKN200 OVC250	41	32			70%	34	NA	29.60	1002.8
17	14:51	SW 13 G 22	10.00	Overcast	BKN200 OVC250	41	31			67%	34	NA	29.59	1002.6
17	13:51	SW 17 G 28	10.00	Mostly Cloudy	BKN200 BKN250	42	31			65%	34	NA	29.59	1002.5
17	12:51	SW 17 G 31	10.00	Mostly Cloudy	BKN190 BKN250	42	31			65%	34	NA	29.61	1003.2
17	11:51	SW 16 G 30	10.00	Mostly Cloudy	BKN190 BKN250	41	30	42	36	65%	33	NA	29.64	1004.4
17	10:51	SW 24 G 37	10.00	Mostly Cloudy and Breezy	FEW100 BKN180 BKN230	41	29			62%	31	NA	29.68	1005.7
17	09:51	SW 18 G 26	10.00	Mostly Cloudy	FEW100 SCT200 BKN230	41	29			62%	32	NA	29.71	1006.7
17	08:51	S 20 G 28	10.00	Mostly Cloudy	SCT200 BKN230	39	29			67%	29	NA	29.71	1006.7
17	07:51	S 17 G 29	10.00	Mostly Cloudy	BKN210 BKN230	38	28			68%	29	NA	29.71	1006.8
17	06:51	S 15	10.00	Mostly Cloudy	BKN200	36	28			73%	27	NA	29.74	1007.7
17	05:51	S 15	10.00	Mostly Cloudy	BKN200	36	28	36	26	73%	27	NA	29.75	1008.1
17	04:51	S 16	10.00	Overcast	OVC220	35	28			76%	25	NA	29.77	1008.8
17	03:51	S 18	8.00	Overcast	OVC200	33	28			82%	22	NA	29.81	1010.1
17	02:51	S 12	8.00	Mostly Cloudy	BKN200	30	26			85%	20	NA	29.86	1011.9
17	01:51	S 9	7.00	A Few Clouds	FEW250	27	23			85%	18	NA	29.90	1013.2
17	00:51	S 10	7.00	Fair	CLR	26	22			84%	16	NA	29.94	1014.5

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