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Current Ozone and Weather Data in National Parks


Joshua Tree National Park - Cottonwood Canyon, CA
EPA AQS Site Number:


Today's Data   Data Timelines   Ozone Health Advisory  
Ozone Sunday April 23, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 61 67
1 AM 65 68
2 AM 68 70
3 AM 64 70
4 AM 64 71
5 AM 69 70
6 AM 71 69
7 AM 74 67
8 AM 75 64
9 AM 75 63
10 AM 70 62
11 AM -- 63
12 PM 61 65
1 PM 58 67
2 PM 56 69
3 PM 59 71
4 PM 63 72
5 PM 70 72
6 PM 76 71
7 PM 80 70
8 PM 79 68
9 PM 75 65
10 PM 70 63
11 PM 65 62
Weather and Ozone Data Sunday April 23, 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 61 0.9 W 22.9 14 0 0.0
1 AM 65 0.6 NW 22.4 16 0 0.0
2 AM 68 0.9 S 22.5 17 0 0.0
3 AM 64 1.6 SW 22.4 16 0 0.0
4 AM 64 1.4 SW 21.8 17 0 0.0
5 AM 69 0.8 SW 20.9 19 0 0.0
6 AM 71 0.9 SW 20.7 18 1 0.0
7 AM 74 1.4 SW 20.3 18 59 0.0
8 AM 75 0.9 SW 22.2 17 210 0.0
9 AM 75 2.2 W 23.6 15 399 0.0
10 AM 70 3.1 SW 24.0 12 339 0.0
11 AM -- 3.0 SW 24.8 12 606 0.0
12 PM 61 3.8 SW 25.9 12 851 0.0
1 PM 58 4.3 SW 26.7 14 962 0.0
2 PM 56 4.0 SW 27.3 16 950 0.0
3 PM 59 2.9 SW 28.2 14 866 0.0
4 PM 63 3.1 SW 28.6 11 734 0.0
5 PM 70 2.5 SW 28.5 10 485 0.0
6 PM 76 2.7 SW 27.8 10 228 0.0
7 PM 80 2.0 SW 26.2 13 37 0.0
8 PM 79 2.3 SW 23.9 17 4 0.0
9 PM 75 2.7 SW 22.3 20 0 0.0
10 PM 70 1.8 W 21.4 18 0 0.0
11 PM 65 1.5 W 20.9 14 0 0.0
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updated on 04/24/2017 12:44 PM  I   http://nature.nps.gov/air/data/current/data_JOTR-CC2.cfm   I  Email: Webmaster