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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 Monday July 24, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 52 44
1 AM 50 42
2 AM 49 41
3 AM 46 40
4 AM 45 40
5 AM 40 40
6 AM 40 41
7 AM 37 43
8 AM 36 45
9 AM 38 47
10 AM 43 48
11 AM 45 49
12 PM 45 49
1 PM 50 49
2 PM 54 49
3 PM 55 --
4 PM 50 --
5 PM 48 --
6 PM 46 --
7 PM 46 --
Weather and Ozone Data Monday July 24, 2017
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 52 0.9 NW 13.7 43 -- 0.0
1 AM 50 0.8 NW 13.0 50 -- 0.0
2 AM 49 0.7 NW 12.3 51 -- 0.0
3 AM 46 0.7 NW 11.6 56 -- 0.0
4 AM 45 0.7 NW 10.8 63 -- 0.0
5 AM 40 0.7 W 10.5 74 -- 0.0
6 AM 40 0.7 NW 9.9 74 0 0.0
7 AM 37 0.6 W 9.6 81 16 0.0
8 AM 36 0.5 SW 12.2 74 83 0.0
9 AM 38 1.0 SE 15.0 58 289 0.0
10 AM 43 1.5 SE 17.6 44 542 0.0
11 AM 45 1.8 SE 19.4 38 691 0.0
12 PM 45 2.5 SE 21.8 35 837 0.0
1 PM 50 3.1 S 24.0 24 906 0.0
2 PM 54 2.8 SW 25.3 17 912 0.0
3 PM 55 2.1 W 25.3 15 846 0.0
4 PM 50 2.3 SW 24.7 19 540 0.0
5 PM 48 1.8 SW 23.7 21 277 0.0
6 PM 46 3.3 W 16.7 49 26 0.4
7 PM 46 2.4 N 14.9 60 161 0.1
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updated on 07/24/2017 7:44 PM  I   http://nature.nps.gov/air/data/current/data_YELL-WT.cfm   I  Email: Webmaster