NPS: Nature & Science» Air Resources Division–Current Ozone and Weather Data in National Parks

Current Ozone and Weather Data in National Parks

Today's Data	Data Timelines	Ozone Health Advisory

Ozone Monday May 20, 2013
Hour Ending (Local Time)	1-Hour Average (parts per billion)	8-Hour Average (parts per billion)
12 AM	34	38
1 AM	38	39
2 AM	39	40
3 AM	40	40
4 AM	40	39
5 AM	40	39
6 AM	40	39
7 AM	40	39
8 AM	41	38
9 AM	40	38
10 AM	39	37
11 AM	39	37
12 PM	39	37
1 PM	38	36
2 PM	37	36
3 PM	37	36
4 PM	37	35
5 PM	37	35
6 PM	36	35
7 PM	36	35
8 PM	36	35
9 PM	36	34
10 PM	34	34
11 PM	35	33

Weather and Ozone Data Monday May 20, 2013
Hour Ending (Local Time)	Ozone (parts per billion)	Wind Speed (meters per second)	Wind Direction	Temperature (degrees C)	Relative Humidity (%)	Solar Radiation (watts per meter squared)	Rainfall (millimeters)
12 AM	34	4.6	E	11.3	99	2	0.8
1 AM	38	5.1	NE	11.6	99	2	3.4
2 AM	39	4.7	E	11.7	99	2	0.0
3 AM	40	5.8	E	11.9	99	2	0.0
4 AM	40	6.3	E	11.6	99	2	3.2
5 AM	40	5.3	E	11.2	99	2	1.0
6 AM	40	5.4	E	11.1	99	3	0.6
7 AM	40	5.1	NE	11.0	99	10	2.7
8 AM	41	5.6	NE	10.8	99	19	2.6
9 AM	40	6.0	NE	10.6	99	31	2.1
10 AM	39	6.0	E	10.4	99	52	2.5
11 AM	39	6.1	NE	10.2	99	60	3.7
12 PM	39	5.0	E	10.3	99	41	1.2
1 PM	38	5.9	E	10.5	99	59	1.8
2 PM	37	5.2	E	10.5	99	85	0.3
3 PM	37	4.9	E	10.3	99	78	3.0
4 PM	37	4.9	E	10.2	99	69	1.8
5 PM	37	4.8	E	10.0	99	58	0.7
6 PM	36	5.5	NE	9.9	99	44	0.1
7 PM	36	5.5	E	9.6	99	31	0.0
8 PM	36	5.3	NE	9.3	99	18	0.0
9 PM	36	4.9	NE	9.2	99	6	0.0
10 PM	34	4.7	NE	8.8	99	4	1.9
11 PM	35	4.5	NE	8.4	99	4	1.6

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