National Park Service Arrowhead
Explore Air

Current Ozone and Weather Data in National Parks


Yosemite National Park - Turtleback Dome, CA
EPA AQS Site Number: 06-043-0003


Today's Data   Data Timelines   Ozone Health Advisory  
Ozone Friday September 4, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 48 48
1 AM 50 48
2 AM 49 47
3 AM 50 47
4 AM 51 47
5 AM 49 47
6 AM 47 47
7 AM 46 48
8 AM 44 48
9 AM 46 50
10 AM 49 51
11 AM 49 51
12 PM 49 52
1 PM 50 53
2 PM 51 54
3 PM 52 54
4 PM 54 55
5 PM 55 54
6 PM 55 54
7 PM 54 54
8 PM 56 54
9 PM 57 54
10 PM 56 --
11 PM 54 --
Weather and Ozone Data Friday September 4, 2015
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 48 2.7 NE 13.9 56 0 0.0
1 AM 50 1.4 NE 14.2 55 0 0.0
2 AM 49 1.3 NE 13.4 56 0 0.0
3 AM 50 2.6 NE 13.2 57 0 0.0
4 AM 51 2.3 E 13.3 58 0 0.0
5 AM 49 2.2 NE 12.9 59 0 0.0
6 AM 47 2.4 E 12.8 61 0 0.0
7 AM 46 2.8 NE 12.4 62 8 0.0
8 AM 44 2.8 NE 12.2 61 142 0.0
9 AM 46 1.7 NE 13.5 56 321 0.0
10 AM 49 1.9 W 14.3 55 363 0.0
11 AM 49 4.6 SW 15.1 52 668 0.0
12 PM 49 5.6 SW 16.1 48 785 0.0
1 PM 50 5.9 SW 16.9 46 707 0.0
2 PM 51 7.3 SW 17.7 41 812 0.0
3 PM 52 8.1 SW 17.9 37 795 0.0
4 PM 54 8.6 SW 18.0 36 715 0.0
5 PM 55 8.0 SW 18.1 36 554 0.0
6 PM 55 8.0 SW 17.3 39 348 0.0
7 PM 54 6.3 SW 16.3 38 146 0.0
8 PM 56 4.0 SW 14.8 39 7 0.0
9 PM 57 3.4 S 13.9 40 0 0.0
10 PM 56 0.8 W 13.4 42 0 0.0
11 PM 54 2.1 NE 13.0 44 0 0.0
U.S. Department of the Interior Accessibility Freedom of Information Act USA.gov Search
Privacy Policy Disclaimer NPS Home Contact Us
updated on 09/05/2015 3:40 AM  I   http://nature.nps.gov/air/data/current/data_YOSE-TD2.cfm   I  Email: Webmaster