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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 Sunday August 2, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 40 33
1 AM 36 31
2 AM 34 29
3 AM 35 28
4 AM 34 28
5 AM 31 29
6 AM 29 30
7 AM 28 32
8 AM 26 34
9 AM 21 37
10 AM 25 40
11 AM 36 42
12 PM 38 43
1 PM 43 44
2 PM 46 43
3 PM 44 42
4 PM 45 42
5 PM 45 41
6 PM 45 40
7 PM 44 39
8 PM 41 39
9 PM 41 39
10 PM 37 39
11 PM 38 40
Weather and Ozone Data Sunday August 2, 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 40 0.9 NW 13.6 39 0 0.0
1 AM 36 1.1 NW 12.7 49 0 0.0
2 AM 34 1.3 NW 11.8 57 0 0.0
3 AM 35 1.0 NW 11.5 51 0 0.0
4 AM 34 0.9 NW 10.5 54 0 0.0
5 AM 31 1.0 W 10.7 65 0 0.0
6 AM 29 1.0 NW 9.4 70 0 0.0
7 AM 28 0.8 NW 9.2 76 16 0.0
8 AM 26 0.5 SE 9.9 76 73 0.0
9 AM 21 1.2 SE 12.8 70 278 0.0
10 AM 25 1.5 SE 15.4 60 526 0.0
11 AM 36 1.7 S 19.0 36 672 0.0
12 PM 38 1.7 SE 21.1 30 801 0.0
1 PM 43 2.1 SE 23.0 25 843 0.0
2 PM 46 2.2 SE 24.7 20 927 0.0
3 PM 44 2.3 SE 26.3 18 901 0.0
4 PM 45 2.2 SE 26.9 16 828 0.0
5 PM 45 2.2 SE 26.7 15 696 0.0
6 PM 45 1.9 SE 26.1 15 522 0.0
7 PM 44 1.4 S 25.0 18 327 0.0
8 PM 41 1.0 NW 20.9 27 60 0.0
9 PM 41 1.4 NW 18.3 31 12 0.0
10 PM 37 1.2 NW 16.8 33 0 0.0
11 PM 38 1.3 N 15.8 36 0 0.0
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updated on 08/03/2015 2:45 PM  I   http://nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster