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:


Today's Data   Data Timelines   Ozone Health Advisory  
Ozone Tuesday April 15, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 60 59
1 AM 60 58
2 AM 59 58
3 AM 60 59
4 AM 59 59
5 AM 60 59
6 AM 59 59
7 AM 58 60
8 AM 56 61
9 AM 59 63
10 AM 63 64
11 AM -- 65
12 PM 62 66
1 PM 61 67
2 PM 64 68
3 PM 65 69
4 PM 67 71
5 PM 70 71
6 PM 71 72
7 PM 71 72
8 PM 72 72
9 PM 70 72
10 PM 71 72
11 PM 76 73
Weather and Ozone Data Tuesday April 15, 2014
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 60 1.1 NW 18.6 10 0 0.0
1 AM 60 1.2 N 17.9 11 0 0.0
2 AM 59 1.6 NE 17.1 11 0 0.0
3 AM 60 1.5 NE 17.1 11 0 0.0
4 AM 59 1.6 N 16.7 11 0 0.0
5 AM 60 1.6 N 17.1 11 0 0.0
6 AM 59 1.2 N 16.5 11 0 0.0
7 AM 58 1.5 N 16.3 12 39 0.0
8 AM 56 1.4 NE 17.9 11 208 0.0
9 AM 59 1.2 NE 20.7 11 347 0.0
10 AM 63 1.3 N 23.0 11 671 0.0
11 AM -- 1.4 E 24.1 10 836 0.0
12 PM 62 2.7 S 24.2 9 943 0.0
1 PM 61 2.5 S 24.9 10 985 0.0
2 PM 64 2.7 S 25.3 10 970 0.0
3 PM 65 3.2 S 25.4 10 888 0.0
4 PM 67 3.0 S 26.1 10 744 0.0
5 PM 70 2.9 SW 26.1 10 490 0.0
6 PM 71 2.9 SW 25.5 11 165 0.0
7 PM 71 2.4 SW 24.4 11 25 0.0
8 PM 72 3.0 S 22.6 12 2 0.0
9 PM 70 2.7 S 21.8 12 0 0.0
10 PM 71 1.6 S 21.5 13 0 0.0
11 PM 76 1.1 SW 21.1 19 0 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 04/16/2014 9:44 PM  I   http://nature.nps.gov/air/data/current/data_JOTR-CC2.cfm   I  Email: Webmaster