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Current Ozone and Weather Data in National Parks


Yellowstone National Park - Water Tower, WY
EPA AQS Site Number: 56-039-1011


Today's Data   Data Timelines   Ozone Health Advisory  
Ozone Friday July 3, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 27 25
1 AM 30 24
2 AM 28 22
3 AM 29 22
4 AM 23 20
5 AM 26 20
6 AM 23 19
7 AM 21 20
8 AM 17 20
9 AM 16 22
10 AM 21 23
11 AM 20 23
12 PM 19 24
1 PM 22 25
2 PM 24 25
3 PM 25 25
4 PM 29 25
5 PM 27 24
6 PM 25 24
7 PM 25 24
8 PM 25 24
9 PM 24 --
10 PM 23 --
11 PM 24 --
Weather and Ozone Data Friday July 3, 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 27 1.1 NW 14.1 48 0 0.0
1 AM 30 1.1 NW 13.3 51 0 0.0
2 AM 28 1.1 NW 12.7 63 0 0.0
3 AM 29 1.1 NW 12.0 69 0 0.0
4 AM 23 1.1 NW 11.4 73 0 0.0
5 AM 26 1.2 NW 10.8 77 0 0.0
6 AM 23 1.0 NW 10.4 79 3 0.0
7 AM 21 0.6 W 10.4 80 31 0.0
8 AM 17 1.0 S 12.6 76 142 0.0
9 AM 16 1.3 S 15.0 70 337 0.0
10 AM 21 1.8 S 17.2 56 569 0.0
11 AM 20 2.2 SE 19.2 51 739 0.0
12 PM 19 2.1 SE 20.7 48 887 0.0
1 PM 22 3.0 SE 22.9 40 741 0.0
2 PM 24 2.5 SW 23.4 30 671 0.0
3 PM 25 2.8 SW 25.0 20 832 0.0
4 PM 29 3.0 SW 25.0 23 716 0.0
5 PM 27 3.9 SW 25.1 22 757 0.0
6 PM 25 3.1 SW 24.7 23 457 0.0
7 PM 25 2.2 W 23.8 26 284 0.0
8 PM 25 1.9 W 22.8 28 126 0.0
9 PM 24 1.1 NW 19.1 41 18 0.0
10 PM 23 1.4 NW 17.2 44 2 0.0
11 PM 24 1.5 NW 16.1 47 0 0.0
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updated on 07/04/2015 1:42 AM  I   http://nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster