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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 May 22, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 45 45
1 AM 45 46
2 AM 45 46
3 AM 45 47
4 AM 46 48
5 AM 46 48
6 AM 46 49
7 AM 47 50
8 AM 48 51
9 AM 49 51
10 AM 51 51
11 AM 51 51
12 PM 53 50
1 PM 54 49
2 PM 54 47
3 PM 52 46
4 PM 51 45
5 PM 48 44
6 PM 48 43
7 PM 45 42
8 PM 43 42
9 PM 42 42
10 PM 43 42
11 PM 43 41
Weather and Ozone Data Friday May 22, 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 45 5.4 SW 9.3 69 0 0.0
1 AM 45 5.0 SW 8.8 69 0 0.0
2 AM 45 4.6 SW 8.5 69 0 0.0
3 AM 45 5.0 SW 8.4 67 0 0.0
4 AM 46 5.3 SW 8.4 66 0 0.0
5 AM 46 5.0 SW 8.2 65 0 0.0
6 AM 46 4.6 SW 7.4 71 4 0.0
7 AM 47 4.3 SW 7.6 70 80 0.0
8 AM 48 4.7 SW 9.0 62 209 0.0
9 AM 49 4.6 SW 10.5 52 299 --
10 AM 51 4.1 SW 12.3 45 589 0.0
11 AM 51 4.9 S 13.4 44 789 0.0
12 PM 53 5.2 S 14.7 39 976 0.0
1 PM 54 5.4 S 15.2 37 1021 0.0
2 PM 54 5.6 S 14.6 40 566 0.0
3 PM 52 5.5 S 15.3 39 882 0.0
4 PM 51 5.8 S 15.5 40 842 0.0
5 PM 48 6.0 SW 14.5 45 622 0.0
6 PM 48 6.0 SW 13.5 50 416 0.0
7 PM 45 5.5 SW 11.7 58 123 0.0
8 PM 43 4.8 SW 10.3 64 19 0.0
9 PM 42 5.1 SW 9.6 67 0 0.0
10 PM 43 5.0 SW 9.6 65 0 0.0
11 PM 43 4.8 SW 9.7 64 0 0.0
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updated on 05/23/2015 5:42 AM  I   http://www2.nature.nps.gov/air/data/current/data_JOTR-BR2.cfm   I  Email: Webmaster