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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


Yesterday's Data   Data Timelines   Ozone Health Advisory  


Ozone Wednesday July 29, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 30 26
1 AM 31 25
2 AM 29 23
3 AM 31 23
4 AM 28 23
5 AM 24 24
6 AM 20 26
7 AM 19 26
8 AM 18 28
9 AM 22 --
10 AM 27 --
11 AM 33 --
12 PM 34 --
1 PM 35 --
Weather and Ozone Data Wednesday July 29, 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 30 1.1 NW 3.4 77 0 0.0
1 AM 31 1.0 NW 3.0 79 0 0.0
2 AM 29 1.1 NW 2.6 83 0 0.0
3 AM 31 1.2 NW 2.5 84 0 0.0
4 AM 28 0.9 NW 2.3 85 0 0.0
5 AM 24 0.7 NW 1.7 91 0 0.0
6 AM 20 0.7 NW 1.7 95 0 0.0
7 AM 19 0.9 W 2.5 96 11 0.0
8 AM 18 1.0 S 4.3 91 41 0.0
9 AM 22 1.5 SE 6.6 80 298 0.0
10 AM 27 1.8 SE 9.1 66 560 0.0
11 AM 33 2.3 SE 11.0 55 713 0.0
12 PM 34 2.4 SE 13.1 49 827 0.0
1 PM 35 2.1 SE 14.5 45 902 0.0
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updated on 07/29/2015 1:56 PM  I   http://www2.nature.nps.gov/air/data/current/data_YELL-WT.cfm   I  Email: Webmaster