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Current Ozone and Weather Data in National Parks


Joshua Tree National Park - Black Rock, CA
Portable Ozone Monitor


Today's Data   Data Timelines   Ozone Health Advisory  
Ozone Friday October 20, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 63 49
1 AM 59 45
2 AM 53 42
3 AM 53 39
4 AM 45 37
5 AM 45 36
6 AM 40 35
7 AM 37 35
8 AM 33 36
9 AM 32 37
10 AM 34 39
11 AM 35 40
12 PM 37 40
1 PM 38 40
2 PM 40 40
3 PM 43 40
4 PM 43 39
5 PM 43 37
6 PM 41 36
7 PM 39 37
8 PM 39 38
9 PM 38 39
10 PM 36 40
11 PM 34 42
Weather and Ozone Data Friday October 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 63 4.4 SW 16.3 41 0 0.0
1 AM 59 4.6 SW 16.7 37 0 0.0
2 AM 53 6.0 SW 16.7 39 0 0.0
3 AM 53 5.0 SW 14.8 53 0 0.0
4 AM 45 4.9 SW 14.5 55 0 0.0
5 AM 45 4.3 S 13.0 63 0 0.0
6 AM 40 3.7 SW 13.8 56 0 0.0
7 AM 37 6.3 SW 12.0 76 2 0.0
8 AM 33 6.9 SW 11.5 84 74 0.0
9 AM 32 4.7 SW 13.0 74 299 0.0
10 AM 34 2.6 SW 16.1 57 478 0.0
11 AM 35 2.5 SW 17.5 50 617 0.0
12 PM 37 4.1 S 17.3 48 694 0.0
1 PM 38 5.1 S 17.0 51 711 0.0
2 PM 40 5.3 S 17.6 49 654 0.0
3 PM 43 6.1 SW 17.8 48 502 0.0
4 PM 43 5.7 SW 17.3 50 400 0.0
5 PM 43 5.4 SW 16.1 54 211 0.0
6 PM 41 5.6 SW 14.1 64 15 0.0
7 PM 39 5.5 SW 12.6 70 1 0.0
8 PM 39 6.0 SW 12.3 70 0 0.0
9 PM 38 4.1 SW 11.6 73 0 0.0
10 PM 36 3.8 SW 11.1 74 0 0.0
11 PM 34 1.8 SW 9.6 77 0 0.0
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updated on 10/21/2017 12:42 PM  I   http://nature.nps.gov/air/data/current/data_JOTR-BR2.cfm   I  Email: Webmaster