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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 Saturday February 25, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 43 41
1 AM 42 --
2 AM 42 --
3 AM 41 --
4 AM 41 --
5 AM 42 --
Weather and Ozone Data Saturday February 25, 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 43 0.2 SW -15.5 83 30 0.0
1 AM 42 0.2 W -15.9 82 34 0.0
2 AM 42 0.2 W -16.2 82 34 0.0
3 AM 41 0.2 W -15.9 82 32 0.1
4 AM 41 0.2 NW -15.9 82 31 0.1
5 AM 42 0.3 S -15.9 83 38 0.0
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updated on 02/25/2017 5:40 AM  I   http://www.nature.nps.gov/air/data/current/Data_YELL-WT.cfm   I  Email: Webmaster