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 Saturday April 25, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 47 40
1 AM 44 38
2 AM 42 36
3 AM 42 35
4 AM 43 34
5 AM 39 34
6 AM 34 35
7 AM 31 36
8 AM 31 38
9 AM 30 40
10 AM 33 43
11 AM 38 44
12 PM 43 45
1 PM 44 46
2 PM 45 46
3 PM 47 46
4 PM 46 45
5 PM 48 45
6 PM 46 43
7 PM 45 42
8 PM 48 40
9 PM 46 39
10 PM 44 38
11 PM 41 37
Weather and Ozone Data Saturday April 25, 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 47 2.2 E 6.1 50 0 0.0
1 AM 44 0.7 E 6.0 52 0 0.0
2 AM 42 2.0 SW 5.5 55 0 0.0
3 AM 42 3.2 SW 2.6 79 0 0.0
4 AM 43 1.2 NE 0.2 94 0 0.0
5 AM 39 1.6 N 0.0 94 0 0.0
6 AM 34 1.8 N 0.0 94 0 0.0
7 AM 31 1.8 N 0.1 94 1 0.0
8 AM 31 1.6 NW 0.4 94 5 0.0
9 AM 30 1.6 W 0.9 94 12 0.0
10 AM 33 2.1 SW 2.1 94 34 0.0
11 AM 38 4.5 SW 2.6 94 188 0.0
12 PM 43 5.5 SW 2.7 94 236 0.0
1 PM 44 5.3 SW 2.7 94 182 0.0
2 PM 45 5.0 SW 2.9 92 466 0.0
3 PM 47 5.9 SW 3.8 88 524 0.0
4 PM 46 5.8 SW 3.7 93 189 0.0
5 PM 48 2.6 SW 3.9 84 225 0.0
6 PM 46 3.3 SW 4.1 88 76 0.0
7 PM 45 2.8 SW 4.4 85 102 0.0
8 PM 48 3.2 SW 4.5 78 7 0.0
9 PM 46 3.1 NW 4.2 80 0 0.0
10 PM 44 2.4 E 4.1 79 0 0.0
11 PM 41 3.3 NE 3.6 86 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 04/26/2015 2:42 PM  I   http://www2.nature.nps.gov/air/data/current/data_YOSE-TD2.cfm   I  Email: Webmaster