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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 Wednesday September 28, 2016 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 25 22
1 AM 24 21
2 AM 25 20
3 AM 25 19
4 AM 24 18
5 AM 22 19
6 AM 18 20
7 AM 17 23
8 AM 18 25
9 AM 15 28
10 AM 16 31
11 AM 20 33
12 PM 29 36
1 PM 33 36
2 PM 37 37
3 PM 38 36
4 PM 38 36
5 PM 38 35
6 PM 38 34
7 PM 37 33
8 PM 36 33
9 PM 36 32
10 PM 34 31
11 PM 34 30
Weather and Ozone Data Wednesday September 28, 2016
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 25 1.0 NW 7.4 65 -- 0.0
1 AM 24 1.0 NW 6.8 70 -- 0.0
2 AM 25 1.0 N 6.5 70 -- 0.0
3 AM 25 0.7 NW 6.0 70 -- 0.0
4 AM 24 0.8 NW 5.8 70 -- 0.0
5 AM 22 0.3 NW 5.2 73 -- 0.0
6 AM 18 0.5 W 4.8 78 -- 0.0
7 AM 17 0.6 NW 4.4 79 -- 0.0
8 AM 18 0.4 NW 4.4 77 8 0.0
9 AM 15 0.4 S 7.6 74 160 0.0
10 AM 16 1.0 SE 10.9 64 363 0.0
11 AM 20 1.3 SE 13.1 55 519 0.0
12 PM 29 1.8 S 15.7 37 632 0.0
1 PM 33 2.2 S 17.8 35 698 0.0
2 PM 37 2.5 S 19.3 32 713 0.0
3 PM 38 2.8 S 20.0 28 674 0.0
4 PM 38 2.3 S 20.2 28 572 0.0
5 PM 38 2.4 S 19.9 27 436 0.0
6 PM 38 2.0 S 18.9 28 182 0.0
7 PM 37 1.0 SW 15.1 37 30 0.0
8 PM 36 0.9 NW 11.9 44 1 0.0
9 PM 36 0.7 NW 11.5 42 0 0.0
10 PM 34 1.0 NW 9.8 50 0 0.0
11 PM 34 0.8 NW 9.4 54 0 0.0
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updated on 09/29/2016 6:41 PM  I   http://nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster