National Park Service Arrowhead
Explore Air

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 Tuesday July 7, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 44 45
1 AM 50 45
2 AM 52 45
3 AM 51 --
4 AM 46 --
5 AM 43 --
6 AM 40 --
7 AM 39 --
Weather and Ozone Data Tuesday July 7, 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 44 4.3 SW 25.6 37 0 0.0
1 AM 50 4.4 SW 25.1 39 0 0.0
2 AM 52 2.8 SW 24.6 40 0 0.0
3 AM 51 2.0 S 22.8 44 0 0.0
4 AM 46 3.7 S 21.0 49 0 0.0
5 AM 43 2.6 S 20.4 50 0 0.0
6 AM 40 3.3 S 20.4 50 4 0.0
7 AM 39 1.7 S 22.4 44 102 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 07/07/2015 8:42 AM  I   http://www.nature.nps.gov/air/data/current/data_JOTR-BR.cfm   I  Email: Webmaster