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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 Thursday July 20, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 68 60
1 AM 65 59
2 AM 65 59
3 AM 59 58
4 AM 56 57
5 AM 55 57
6 AM 58 56
7 AM 60 56
8 AM 61 55
9 AM 61 54
10 AM 56 54
11 AM 55 57
12 PM 52 61
1 PM 50 64
2 PM 53 66
3 PM 57 67
4 PM 55 69
5 PM 61 71
6 PM 79 --
7 PM 87 --
8 PM 75 --
9 PM 65 --
10 PM 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 68 5.4 SW 25.1 42 0 0.0
1 AM 65 5.2 SW 24.8 39 0 0.0
2 AM 65 5.2 SW 24.6 41 0 0.0
3 AM 59 5.1 SW 24.3 42 0 0.0
4 AM 56 3.9 SW 23.9 41 0 0.0
5 AM 55 4.2 SW 23.8 42 0 0.0
6 AM 58 2.0 SW 22.8 41 1 0.0
7 AM 60 3.4 S 23.0 46 51 0.0
8 AM 61 4.0 S 25.0 42 257 0.0
9 AM 61 3.6 SW 26.4 40 429 0.0
10 AM 56 4.4 S 27.8 33 605 0.0
11 AM 55 5.5 S 29.2 28 755 0.0
12 PM 52 6.1 S 30.0 27 812 0.0
1 PM 50 6.0 S 31.0 25 854 0.0
2 PM 53 6.4 S 31.6 25 902 0.0
3 PM 57 6.6 SW 32.0 23 828 0.0
4 PM 55 6.6 SW 32.3 18 731 0.0
5 PM 61 7.1 SW 31.8 18 582 0.0
6 PM 79 7.0 SW 30.9 21 399 0.0
7 PM 87 6.1 SW 29.3 28 208 0.0
8 PM 75 5.5 SW 27.6 27 31 0.0
9 PM 65 5.8 SW 26.8 24 0 0.0
10 PM 63 5.4 SW 26.5 22 0 0.0
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updated on 07/20/2017 11:45 PM  I   http://www.nature.nps.gov/air/data/current/data_JOTR-BR.cfm   I  Email: Webmaster