National Park Service
Explore Nature
National Park Service
U.S. Department of the Interior
 National Park Service Arrowhead
Explore Air

Current Ozone and Weather Data in National Parks


Joshua Tree National Park - Black Rock, CA
Portable Ozone Monitor


Today's Data   Data Timelines   Ozone Health Advisory  
Ozone Friday May 17, 2013 
Hour Ending
(Local Time)		 1-Hour Average
(parts per billion)		 8-Hour Average
(parts per billion)
12 AM 61 55
1 AM 58 53
2 AM 55 52
3 AM 55 50
4 AM 56 49
5 AM 56 47
6 AM 52 46
7 AM 49 46
8 AM 47 47
9 AM 46 48
10 AM 46 50
11 AM 45 52
12 PM 41 54
1 PM 43 56
2 PM 51 58
3 PM 57 58
4 PM 59 57
5 PM 61 57
6 PM 61 55
7 PM 61 53
8 PM 60 52
9 PM 56 51
10 PM 53 50
11 PM 52 50
TOP OF PAGE
Weather and Ozone Data Friday May 17, 2013
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 61 4.3 SW 18.0 35 0 0.0
1 AM 58 4.6 SW 18.7 31 0 0.0
2 AM 55 4.5 SW 19.3 26 0 0.0
3 AM 55 4.4 SW 18.9 27 0 0.0
4 AM 56 4.3 SW 17.2 34 0 0.0
5 AM 56 5.0 S 16.3 36 0 0.0
6 AM 52 5.1 S 15.6 41 1 0.0
7 AM 49 4.0 SW 15.3 43 14 0.0
8 AM 47 4.1 SW 15.0 47 42 0.0
9 AM 46 4.9 SW 15.2 47 126 0.0
10 AM 46 5.4 S 16.5 42 549 0.0
11 AM 45 5.5 S 17.8 38 899 0.0
12 PM 41 6.9 SW 19.3 31 991 0.0
1 PM 43 7.4 SW 19.5 27 1038 0.0
2 PM 51 5.5 SW 20.1 29 1024 0.0
3 PM 57 5.7 SW 20.4 32 933 0.0
4 PM 59 5.4 S 20.1 34 786 0.0
5 PM 61 5.6 S 19.7 37 586 0.0
6 PM 61 5.3 SW 18.9 39 371 0.0
7 PM 61 4.6 SW 17.6 44 158 0.0
8 PM 60 4.4 SW 15.7 54 14 0.0
9 PM 56 3.3 S 14.1 64 0 0.0
10 PM 53 3.8 S 13.1 70 0 0.0
11 PM 52 4.0 SW 13.1 69 0 0.0
TOP OF PAGE
U.S. Department of the Interior Accessibility Freedom of Information Act USA.gov Search
Privacy Policy Disclaimer NPS Home Contact Us
updated on 05/18/2013 9:41 PM  I   http://www2.nature.nps.gov/air/data/current/data_JOTR-BR2.cfm   I  Email: Webmaster