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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 Thursday July 27, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 45 35
1 AM 39 34
2 AM 32 33
3 AM 34 --
4 AM 37 --
5 AM 32 --
6 AM 36 --
7 AM 30 --
Weather and Ozone Data Thursday July 27, 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 45 0.8 S 12.0 73 0 0.0
1 AM 39 0.7 E 11.6 79 0 0.0
2 AM 32 0.5 NW 11.1 88 -- 0.0
3 AM 34 0.7 SW 11.3 88 -- 0.0
4 AM 37 0.9 W 11.1 88 0 0.0
5 AM 32 0.7 NW 9.5 93 -- 0.0
6 AM 36 0.8 W 8.7 94 0 0.0
7 AM 30 0.6 NW 8.2 94 11 0.0
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updated on 07/27/2017 7:42 AM  I   http://www.nature.nps.gov/air/data/current/Data_YELL-WT.cfm   I  Email: Webmaster