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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 October 23, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 34 43
1 AM 42 45
2 AM 48 45
3 AM -- 45
4 AM -- 45
5 AM 46 45
6 AM 46 --
7 AM 44 --
8 AM 45 --
9 AM 44 --
10 AM 45 --
Weather and Ozone Data Monday October 23, 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 34 1.3 SW 0.5 80 -- 0.0
1 AM 42 1.3 NW -0.3 69 -- 0.0
2 AM 48 1.5 W -0.7 57 -- 0.0
3 AM -- 2.0 SW -1.3 60 -- 0.0
4 AM -- 2.2 SW -1.8 63 -- 0.0
5 AM 46 2.2 SW -2.1 63 -- 0.0
6 AM 46 1.6 SW -2.4 64 -- 0.0
7 AM 44 1.2 SW -2.9 68 -- 0.0
8 AM 45 2.0 W -3.0 66 -- 0.0
9 AM 44 2.9 SW -2.2 66 44 0.0
10 AM 45 2.5 SW -0.4 57 229 0.0
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updated on 10/23/2017 10:44 AM  I   http://nature.nps.gov/air/data/current/data_YELL-WT.cfm   I  Email: Webmaster