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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 July 27, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 51 46
1 AM 50 44
2 AM 46 42
3 AM 46 41
4 AM 46 41
5 AM 44 42
6 AM 45 42
7 AM 40 43
8 AM 37 44
9 AM 33 46
10 AM 40 48
11 AM 47 50
12 PM 50 50
1 PM 49 50
2 PM 52 50
3 PM 51 49
4 PM 50 47
5 PM 51 46
6 PM 52 45
7 PM 51 44
8 PM 49 43
9 PM 48 43
10 PM 42 42
11 PM 40 42
Weather and Ozone Data Sunday July 27, 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 51 1.2 N 10.8 34 1 0.0
1 AM 50 1.0 NW 10.4 39 1 0.0
2 AM 46 1.1 NW 9.3 49 1 0.0
3 AM 46 1.2 NW 8.6 52 1 0.0
4 AM 46 1.1 NW 7.8 56 1 0.0
5 AM 44 1.0 NW 7.2 58 1 0.0
6 AM 45 0.9 NW 6.8 61 1 0.0
7 AM 40 0.8 W 7.0 69 14 0.0
8 AM 37 0.8 SE 8.6 65 50 0.0
9 AM 33 1.5 SE 11.4 62 317 0.0
10 AM 40 1.6 SE 14.5 46 579 0.0
11 AM 47 1.7 SE 17.5 30 735 0.0
12 PM 50 1.9 SE 19.7 25 853 0.0
1 PM 49 2.3 SE 21.2 25 922 0.0
2 PM 52 2.2 SE 22.6 21 939 0.0
3 PM 51 2.7 SE 23.4 23 928 0.0
4 PM 50 2.4 SE 24.3 22 851 0.0
5 PM 51 2.0 SE 24.5 17 653 0.0
6 PM 52 1.7 SE 24.6 17 572 0.0
7 PM 51 1.3 SE 24.1 18 347 0.0
8 PM 49 0.9 W 19.8 26 80 0.0
9 PM 48 1.4 NW 16.8 30 10 0.0
10 PM 42 1.4 NW 15.2 35 1 0.0
11 PM 40 1.0 N 14.9 38 1 0.0
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updated on 07/28/2014 9:40 AM  I   http://www2.nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster