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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 25, 2016 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 48 41
1 AM 47 39
2 AM 45 37
3 AM 45 36
4 AM 41 35
5 AM 38 36
6 AM 36 37
7 AM 35 38
8 AM 31 40
9 AM 31 42
10 AM 35 44
11 AM 40 45
12 PM 44 46
1 PM 45 --
2 PM 47 --
3 PM 47 --
4 PM 48 --
5 PM 49 --
Weather and Ozone Data Monday July 25, 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 48 1.2 N 12.1 35 0 0.0
1 AM 47 1.2 N 11.2 44 0 0.0
2 AM 45 1.1 N 10.3 51 0 0.0
3 AM 45 1.2 N 9.3 48 0 0.0
4 AM 41 0.7 N 8.4 55 0 0.0
5 AM 38 0.6 N 7.6 63 0 0.0
6 AM 36 0.6 NW 7.0 68 0 0.0
7 AM 35 0.8 NW 6.9 70 11 0.0
8 AM 31 0.9 SE 9.0 64 55 0.0
9 AM 31 1.5 S 12.1 60 298 0.0
10 AM 35 1.8 S 14.9 49 557 0.0
11 AM 40 1.6 S 17.4 36 714 0.0
12 PM 44 1.9 S 20.0 26 840 0.0
1 PM 45 1.9 S 22.4 23 926 0.0
2 PM 47 2.4 S 24.8 18 958 0.0
3 PM 47 3.8 SW 25.9 12 886 0.0
4 PM 48 3.7 SW 26.4 13 867 0.0
5 PM 49 3.8 SW 25.7 13 696 0.0
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updated on 07/25/2016 5:41 PM  I   http://nature.nps.gov/air/data/current/data_YELL-WT.cfm   I  Email: Webmaster