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Current Ozone and Weather Data in National Parks


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


Yesterday's Data   Data Timelines   Ozone Health Advisory  


Ozone Monday October 20, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 55 48
1 AM 51 47
2 AM 47 47
3 AM 46 47
4 AM 48 47
5 AM 48 47
6 AM 46 47
7 AM 47 47
8 AM 47 48
9 AM 48 49
10 AM 48 50
11 AM 47 50
12 PM 46 51
1 PM 47 51
2 PM 49 52
3 PM 53 52
4 PM 57 52
5 PM 53 --
6 PM 52 --
7 PM 52 --
8 PM 51 --
9 PM 51 --
Weather and Ozone Data Monday October 20, 2014
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 55 3.1 S 18.1 46 0 0.0
1 AM 51 3.3 S 17.9 47 0 0.0
2 AM 47 3.0 S 18.2 45 0 0.0
3 AM 46 2.7 S 18.5 44 0 0.0
4 AM 48 3.2 S 17.9 46 0 0.0
5 AM 48 2.5 S 17.9 46 0 0.0
6 AM 46 2.9 S 17.4 46 0 0.0
7 AM 47 2.5 S 18.1 44 1 0.0
8 AM 47 2.6 S 18.2 43 67 0.0
9 AM 48 2.0 S 21.4 35 277 0.0
10 AM 48 2.6 S 22.3 31 469 0.0
11 AM 47 2.9 SW 23.1 29 622 0.0
12 PM 46 3.5 S 23.5 29 719 0.0
1 PM 47 3.6 S 23.9 28 757 0.0
2 PM 49 3.7 S 23.8 32 722 0.0
3 PM 53 4.1 S 23.7 35 561 0.0
4 PM 57 4.1 SW 23.3 35 463 0.0
5 PM 53 4.7 SW 23.0 30 259 0.0
6 PM 52 4.8 SW 21.9 31 20 0.0
7 PM 52 4.7 SW 21.2 32 1 0.0
8 PM 51 5.1 SW 20.7 33 0 0.0
9 PM 51 4.9 SW 20.5 33 0 0.0
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updated on 10/20/2014 10:40 PM  I   http://www.nature.nps.gov/air/data/current/data_JOTR-BR.cfm   I  Email: Webmaster