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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 Sunday September 24, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 27 27
1 AM 27 27
2 AM 27 27
3 AM 27 --
4 AM 25 --
5 AM 27 --
6 AM 29 --
7 AM 30 --
Weather and Ozone Data Sunday September 24, 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 27 1.1 NE -0.4 89 -- 0.0
1 AM 27 0.9 N -0.5 89 -- 0.0
2 AM 27 0.9 N -0.7 89 -- 0.0
3 AM 27 0.9 N -0.9 90 -- 0.0
4 AM 25 0.7 N -1.6 93 -- 0.0
5 AM 27 0.9 N -2.2 94 -- 0.0
6 AM 29 1.1 N -2.4 91 -- 0.0
7 AM 30 1.1 N -2.7 90 -- 0.0
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updated on 09/24/2017 8:45 AM  I   http://www.nature.nps.gov/air/data/current/Data_YELL-WT.cfm   I  Email: Webmaster