National Park Service Arrowhead
Explore Air

Current Ozone and Weather Data in National Parks


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


Yesterday's Data   Data Timelines   Ozone Health Advisory  


Ozone Saturday July 23, 2016 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 42 44
1 AM 47 43
2 AM 47 41
3 AM 47 40
4 AM 44 39
5 AM 45 39
6 AM 44 39
7 AM 41 39
8 AM 31 40
9 AM 35 42
10 AM 39 43
11 AM -- 44
12 PM 42 44
1 PM 44 --
2 PM 45 --
3 PM 45 --
4 PM 45 --
5 PM 46 --
Weather and Ozone Data Saturday July 23, 2016
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 42 2.5 S 32.2 27 0 0.0
1 AM 47 2.2 S 32.0 24 0 0.0
2 AM 47 1.8 S 31.8 24 0 0.0
3 AM 47 1.4 SW 31.5 24 0 0.0
4 AM 44 1.0 N 30.0 26 0 0.0
5 AM 45 1.4 N 29.7 24 0 0.0
6 AM 44 2.3 N 28.7 25 1 0.0
7 AM 41 3.6 S 28.4 27 87 0.0
8 AM 31 6.7 S 27.3 38 270 0.0
9 AM 35 5.2 S 28.2 41 466 0.0
10 AM 39 4.7 S 29.4 41 647 0.0
11 AM -- 4.0 S 30.3 39 797 0.0
12 PM 42 3.6 S 31.8 36 895 0.0
1 PM 44 3.8 S 32.9 34 933 0.0
2 PM 45 4.4 S 34.5 29 925 0.0
3 PM 45 4.6 S 35.9 25 861 0.0
4 PM 45 3.9 S 36.1 27 692 0.0
5 PM 46 3.0 SW 36.0 27 579 0.0
U.S. Department of the Interior Accessibility Freedom of Information Act USA.gov Search
Privacy Policy Disclaimer NPS Home Contact Us
updated on 07/23/2016 6:41 PM  I   http://www.nature.nps.gov/air/data/current/data_JOTR-CC.cfm   I  Email: Webmaster