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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 Friday September 23, 2016 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 26 20
1 AM 23 19
2 AM 20 18
3 AM 20 18
4 AM 19 18
5 AM 17 18
6 AM 17 19
7 AM 18 20
8 AM 19 20
9 AM 17 21
10 AM 18 21
11 AM 21 --
12 PM 21 --
1 PM 22 --
2 PM 25 --
3 PM 24 --
Weather and Ozone Data Friday September 23, 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 26 1.0 NE 6.5 92 0 0.4
1 AM 23 1.3 N 6.3 92 0 0.0
2 AM 20 1.0 N 6.1 92 0 2.4
3 AM 20 0.9 N 5.9 92 0 0.6
4 AM 19 0.6 N 5.9 92 0 0.0
5 AM 17 0.7 N 6.0 93 0 0.2
6 AM 17 0.8 N 5.5 93 0 0.1
7 AM 18 0.8 N 4.9 92 0 0.0
8 AM 19 0.8 N 4.8 92 7 0.0
9 AM 17 0.6 N 5.6 93 78 0.0
10 AM 18 0.7 N 6.8 92 127 0.0
11 AM 21 1.2 N 9.0 86 475 0.0
12 PM 21 0.9 NW 10.1 80 335 0.0
1 PM 22 1.1 N 11.2 75 389 0.0
2 PM 25 1.1 N 11.8 70 380 0.0
3 PM 24 1.3 N 11.4 72 228 0.0
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updated on 09/24/2016 12:42 AM  I   http://www.nature.nps.gov/air/data/current/data_YELL-WT.cfm   I  Email: Webmaster