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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 Thursday July 20, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 70 61
1 AM 67 58
2 AM 65 56
3 AM 62 55
4 AM 60 54
5 AM 60 53
6 AM 56 54
7 AM 52 55
8 AM 49 61
9 AM 48 69
10 AM 54 76
11 AM 54 80
12 PM 56 82
1 PM 63 82
2 PM 71 81
3 PM 94 79
4 PM 112 74
5 PM 109 68
6 PM 86 62
7 PM 65 59
8 PM 58 59
9 PM 56 60
10 PM 56 61
11 PM 57 63
Weather and Ozone Data Thursday July 20, 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 70 4.0 NE 19.0 40 0 0.0
1 AM 67 3.8 NE 18.7 40 0 0.0
2 AM 65 4.3 NE 18.7 39 0 0.0
3 AM 62 4.6 NE 17.9 41 0 0.0
4 AM 60 4.8 NE 17.4 42 0 0.0
5 AM 60 4.2 NE 17.2 42 0 0.0
6 AM 56 4.5 NE 16.9 41 0 0.0
7 AM 52 4.8 NE 16.6 41 44 0.0
8 AM 49 4.4 NE 17.0 43 235 0.0
9 AM 48 2.8 NE 18.8 40 435 0.0
10 AM 54 2.4 SW 21.1 30 634 0.0
11 AM 54 4.4 SW 21.5 29 812 0.0
12 PM 56 5.2 SW 22.1 29 930 0.0
1 PM 63 5.6 SW 23.1 27 976 0.0
2 PM 71 6.2 SW 24.1 24 954 0.0
3 PM 94 6.8 SW 24.3 24 835 0.0
4 PM 112 6.6 SW 24.1 26 660 0.0
5 PM 109 6.8 SW 23.5 27 497 0.0
6 PM 86 6.1 SW 22.3 28 335 0.0
7 PM 65 5.1 SW 21.4 30 194 0.0
8 PM 58 5.0 SW 20.6 33 67 0.0
9 PM 56 4.0 SW 19.8 35 2 0.0
10 PM 56 1.2 E 19.4 36 0 0.0
11 PM 57 3.2 NE 18.9 38 0 0.0
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updated on 07/21/2017 8:41 AM  I   http://nature.nps.gov/air/data/current/data_YOSE-TD2.cfm   I  Email: Webmaster