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 Sunday April 30, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 46 48
1 AM 47 48
2 AM 48 49
3 AM 49 49
4 AM 49 49
5 AM 48 49
6 AM 50 50
7 AM 50 50
8 AM 48 51
9 AM 50 51
10 AM 50 52
11 AM -- 52
12 PM 52 52
1 PM 52 53
2 PM 52 --
3 PM 53 --
4 PM 53 --
5 PM 54 --
6 PM 54 --
Weather and Ozone Data Sunday April 30, 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 46 1.3 N 14.9 15 0 0.0
1 AM 47 1.1 N 15.2 14 0 0.0
2 AM 48 1.0 NE 15.5 14 0 0.0
3 AM 49 1.3 NE 15.8 13 0 0.0
4 AM 49 1.5 NE 15.7 13 0 0.0
5 AM 48 1.2 NE 14.6 15 0 0.0
6 AM 50 1.4 N 15.6 13 1 0.0
7 AM 50 1.7 N 16.7 13 87 0.0
8 AM 48 2.7 N 17.5 15 298 0.0
9 AM 50 4.7 N 19.7 11 511 0.0
10 AM 50 5.2 NE 20.1 11 702 0.0
11 AM -- 5.7 NE 20.6 11 853 0.0
12 PM 52 4.4 NE 21.7 10 952 0.0
1 PM 52 3.3 NE 23.2 10 996 0.0
2 PM 52 2.4 S 24.8 9 976 0.0
3 PM 53 2.6 S 25.1 9 896 0.0
4 PM 53 2.2 S 25.7 9 757 0.0
5 PM 54 2.3 S 26.1 9 526 0.0
6 PM 54 2.8 SW 25.6 10 274 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 04/30/2017 7:43 PM  I   http://nature.nps.gov/air/data/current/data_JOTR-CC.cfm   I  Email: Webmaster