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 March 1, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 41 38
1 AM 40 37
2 AM 38 37
3 AM 39 36
4 AM 39 36
5 AM 38 36
6 AM 38 37
7 AM 37 37
8 AM 34 38
9 AM 33 39
10 AM -- --
11 AM 38 --
12 PM 40 --
1 PM 41 --
2 PM 41 --
3 PM 41 --
Weather and Ozone Data Sunday March 1, 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 41 2.0 SW 9.0 54 0 0.0
1 AM 40 2.1 S 8.6 57 0 0.0
2 AM 38 0.6 SW 8.3 58 0 0.0
3 AM 39 1.1 S 8.3 58 0 0.0
4 AM 39 1.0 S 8.2 59 0 0.0
5 AM 38 0.7 N 8.0 62 0 0.0
6 AM 38 0.8 NE 7.8 64 0 0.0
7 AM 37 0.5 NW 7.9 64 8 0.0
8 AM 34 2.1 N 7.6 69 34 0.2
9 AM 33 2.8 NE 6.9 79 55 0.7
10 AM -- 3.7 NE 6.5 85 95 1.3
11 AM 38 3.5 NE 6.4 87 151 1.5
12 PM 40 4.1 NE 5.9 87 130 1.8
1 PM 41 4.7 N 5.4 90 175 1.0
2 PM 41 4.3 N 5.1 92 128 1.5
3 PM 41 5.3 N 5.2 93 121 1.0
U.S. Department of the Interior Accessibility Freedom of Information Act USA.gov Search
Privacy Policy Disclaimer NPS Home Contact Us
updated on 03/01/2015 4:41 PM  I   http://www2.nature.nps.gov/air/data/current/data_JOTR-CC.cfm   I  Email: Webmaster