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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 Thursday December 18, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 24 22
1 AM 21 22
2 AM 20 24
3 AM 19 25
4 AM 23 28
5 AM 24 31
6 AM 25 33
7 AM 25 36
8 AM 26 38
9 AM 30 41
10 AM 34 42
11 AM 43 43
12 PM 43 42
1 PM 44 41
2 PM 45 39
3 PM 46 38
4 PM 45 36
5 PM 42 34
6 PM 36 33
7 PM 37 32
8 PM 35 31
9 PM 33 31
10 PM 31 31
11 PM 31 31
Weather and Ozone Data Thursday December 18, 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 24 1.2 S 3.8 90 0 0.0
1 AM 21 1.8 S 3.0 91 0 0.0
2 AM 20 2.4 S 2.4 92 0 0.0
3 AM 19 2.8 S 2.2 91 0 0.0
4 AM 23 3.1 S 1.2 91 0 0.0
5 AM 24 3.8 S 0.9 91 0 0.0
6 AM 25 3.3 S 0.7 91 0 0.0
7 AM 25 3.5 S 0.8 90 3 0.0
8 AM 26 2.8 S 1.4 86 85 0.0
9 AM 30 0.8 SE 4.9 72 277 0.0
10 AM 34 1.8 N 6.1 68 425 0.0
11 AM 43 2.2 N 7.3 52 532 0.0
12 PM 43 2.2 N 7.6 57 576 0.0
1 PM 44 2.2 NE 8.1 53 559 0.0
2 PM 45 2.3 N 8.2 50 434 0.0
3 PM 46 2.6 NE 8.7 50 337 0.0
4 PM 45 2.8 NE 8.3 53 158 0.0
5 PM 42 1.0 NE 5.6 63 8 0.0
6 PM 36 1.8 S 3.0 75 0 0.0
7 PM 37 1.8 S 2.1 79 0 0.0
8 PM 35 3.0 S 2.3 77 0 0.0
9 PM 33 3.5 S 1.4 80 0 0.0
10 PM 31 3.9 S 1.4 80 0 0.0
11 PM 31 4.0 S 1.5 80 0 0.0
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updated on 12/19/2014 10:39 PM  I   http://www2.nature.nps.gov/air/data/current/data_JOTR-BR2.cfm   I  Email: Webmaster