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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 Tuesday October 17, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 40 38
1 AM 39 38
2 AM 38 37
3 AM 39 37
4 AM 41 38
5 AM 38 38
6 AM 36 39
7 AM 37 40
8 AM 36 41
9 AM 37 43
10 AM 39 45
11 AM 41 46
12 PM 42 48
1 PM 45 49
2 PM 47 49
3 PM -- 49
4 PM 50 47
5 PM 51 47
6 PM 52 46
7 PM 53 --
8 PM 50 --
9 PM 46 --
10 PM 41 --
11 PM 36 --
Weather and Ozone Data Tuesday October 17, 2017
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 40 4.4 NE 15.4 23 0 0.0
1 AM 39 5.4 NE 15.0 22 0 0.0
2 AM 38 5.6 E 14.6 22 0 0.0
3 AM 39 5.8 NE 14.0 23 0 0.0
4 AM 41 5.5 NE 14.0 22 0 0.0
5 AM 38 5.5 NE 13.8 22 0 0.0
6 AM 36 5.3 NE 13.6 21 0 0.0
7 AM 37 5.8 E 14.0 20 0 0.0
8 AM 36 5.4 NE 14.1 19 18 0.0
9 AM 37 4.5 NE 14.1 20 136 0.0
10 AM 39 3.9 NE 15.8 19 346 0.0
11 AM 41 1.7 NE 18.7 15 402 0.0
12 PM 42 3.6 SW 19.9 15 594 0.0
1 PM 45 4.2 SW 19.4 16 517 0.0
2 PM 47 3.7 SW 20.5 17 675 0.0
3 PM -- 4.6 SW 20.1 18 350 0.0
4 PM 50 4.5 SW 20.0 19 364 0.0
5 PM 51 4.0 SW 19.5 20 237 0.0
6 PM 52 4.9 S 18.3 20 66 0.0
7 PM 53 2.7 SW 17.5 21 3 0.0
8 PM 50 3.2 NE 17.2 23 0 0.0
9 PM 46 3.2 E 17.0 26 0 0.0
10 PM 41 3.6 E 16.2 29 0 0.0
11 PM 36 4.7 E 16.0 33 0 0.0
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updated on 10/18/2017 12:42 AM  I   http://www.nature.nps.gov/air/data/current/data_YOSE-TD2.cfm   I  Email: Webmaster