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

Current Ozone and Weather Data in National Parks

Yesterday's Data	Data Timelines	Ozone Health Advisory

Ozone Friday November 20, 2009
Hour Ending (Local Time)	1-Hour Average (parts per billion)	8-Hour Average (parts per billion)
12 AM	31	28
1 AM	30	27
2 AM	29	--
3 AM	26	--
4 AM	27	--
5 AM	28	--
6 AM	27	--

Weather and Ozone Data Friday November 20, 2009
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	31	7.6	S	0.9	49	0	0.0
1 AM	30	8.0	S	0.9	51	0	0.0
2 AM	29	8.1	S	0.2	57	0	0.0
3 AM	26	7.7	S	0.4	58	0	0.0
4 AM	27	7.5	S	0.2	60	0	0.0
5 AM	28	7.2	S	-0.2	61	0	0.0
6 AM	27	7.8	S	-0.1	61	0	0.0