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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


Today's Data   Data Timelines   Ozone Health Advisory  
Ozone Sunday January 22, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 47 45
1 AM 46 45
2 AM 45 45
3 AM 45 45
4 AM 44 45
5 AM 45 46
6 AM 44 46
7 AM 45 47
8 AM 46 47
9 AM 46 48
10 AM 46 48
11 AM 48 49
12 PM 48 49
1 PM 49 49
2 PM 49 50
3 PM 50 50
4 PM 51 50
5 PM 50 49
6 PM 50 49
7 PM 50 49
8 PM 50 49
9 PM 50 49
10 PM 50 49
11 PM 49 48
Weather and Ozone Data Sunday January 22, 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 47 0.7 SW -7.7 81 -- 0.0
1 AM 46 0.6 S -8.4 83 0 0.0
2 AM 45 0.6 S -9.7 85 -- 0.0
3 AM 45 1.0 S -9.1 84 -- 0.0
4 AM 44 0.5 NE -9.7 86 -- 0.0
5 AM 45 0.5 S -10.1 87 -- 0.0
6 AM 44 0.7 N -11.4 87 -- 0.0
7 AM 45 0.6 NW -10.1 86 -- 0.0
8 AM 46 0.4 NW -9.4 87 -- 0.0
9 AM 46 0.3 SW -9.4 87 5 0.0
10 AM 46 0.7 S -8.2 87 14 0.0
11 AM 48 1.8 SE -6.8 81 59 0.0
12 PM 48 1.8 SE -6.8 81 54 0.0
1 PM 49 2.0 S -6.1 79 47 0.0
2 PM 49 2.3 S -5.0 71 62 0.0
3 PM 50 2.3 S -5.3 68 39 0.0
4 PM 51 2.3 S -5.6 68 21 0.0
5 PM 50 1.8 SW -6.2 75 9 0.0
6 PM 50 1.4 S -6.7 77 0 0.0
7 PM 50 1.8 SW -7.2 82 -- 0.1
8 PM 50 1.7 S -7.6 86 -- 0.1
9 PM 50 1.3 S -7.9 88 -- 0.2
10 PM 50 1.0 S -8.2 87 0 0.0
11 PM 49 1.1 S -8.4 87 -- 0.0
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updated on 01/23/2017 11:40 AM  I   http://nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster