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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 1, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 21 19
1 AM 22 18
2 AM 25 17
3 AM 25 15
4 AM 22 14
5 AM 15 13
6 AM 16 14
7 AM 11 14
8 AM 11 15
9 AM 11 16
10 AM 13 17
11 AM 15 17
12 PM 17 18
1 PM 18 --
2 PM 20 --
3 PM 18 --
4 PM 19 --
5 PM 18 --
Weather and Ozone Data Wednesday July 1, 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 21 1.0 N 14.8 68 0 0.0
1 AM 22 1.2 N 13.9 70 0 0.0
2 AM 25 0.9 NW 13.7 72 0 0.0
3 AM 25 0.9 NW 13.3 76 0 0.0
4 AM 22 0.9 N 12.0 81 0 0.0
5 AM 15 0.9 NW 11.5 84 0 0.0
6 AM 16 0.8 W 11.7 84 5 0.0
7 AM 11 0.9 SW 11.9 85 39 0.0
8 AM 11 0.9 SE 13.0 83 149 0.0
9 AM 11 1.3 S 15.1 74 354 0.0
10 AM 13 1.5 SE 17.2 64 589 0.0
11 AM 15 1.7 S 18.8 58 753 0.0
12 PM 17 1.7 SE 20.6 51 788 0.0
1 PM 18 2.0 S 21.7 47 717 0.0
2 PM 20 2.1 SE 23.2 42 760 0.0
3 PM 18 3.0 W 25.6 20 963 0.0
4 PM 19 3.3 SW 25.8 21 913 0.0
5 PM 18 2.3 W 25.9 22 744 0.0
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updated on 07/01/2015 5:44 PM  I   http://www2.nature.nps.gov/air/data/current/data_YELL-WT.cfm   I  Email: Webmaster