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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 Wednesday June 28, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 28 31
1 AM 28 31
2 AM 39 31
3 AM 31 30
4 AM 37 31
5 AM 34 31
6 AM 28 32
7 AM 30 34
8 AM 28 35
9 AM 26 37
10 AM 32 40
11 AM 35 43
12 PM 41 44
1 PM 41 44
2 PM 40 43
3 PM 42 43
4 PM 44 42
5 PM 48 41
6 PM 53 40
7 PM 49 37
8 PM 39 --
9 PM 36 --
10 PM 34 --
11 PM 36 --
Weather and Ozone Data Wednesday June 28, 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 28 0.6 N 6.5 95 -- 0.0
1 AM 28 0.7 W 6.1 95 -- 0.0
2 AM 39 1.0 W 6.0 94 0 0.0
3 AM 31 0.8 NW 4.9 95 -- 0.0
4 AM 37 1.0 W 5.2 95 -- 0.0
5 AM 34 0.7 W 4.7 95 -- 0.0
6 AM 28 0.4 NW 4.6 95 1 0.0
7 AM 30 0.7 SW 5.1 95 22 0.0
8 AM 28 0.8 SW 6.1 94 62 0.1
9 AM 26 1.0 S 7.0 92 193 0.0
10 AM 32 1.8 S 9.5 82 594 0.0
11 AM 35 2.2 S 11.6 74 591 0.0
12 PM 41 2.8 SW 12.9 60 645 0.0
1 PM 41 3.6 SW 13.0 55 455 0.0
2 PM 40 2.7 SW 13.2 55 645 0.0
3 PM 42 3.5 S 14.8 49 949 0.0
4 PM 44 3.0 SW 14.6 45 483 0.0
5 PM 48 2.8 NW 10.5 59 81 1.0
6 PM 53 2.7 W 5.6 86 13 4.2
7 PM 49 1.8 SW 5.0 91 27 5.6
8 PM 39 0.6 NE 4.9 95 54 0.0
9 PM 36 0.5 SW 4.7 95 27 0.0
10 PM 34 0.5 NW 4.0 95 1 0.0
11 PM 36 0.8 W 4.4 95 0 0.0
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updated on 06/29/2017 12:42 AM  I   http://www.nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster