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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 July 23, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 41 35
1 AM 39 34
2 AM 34 34
3 AM 34 34
4 AM 36 34
5 AM 36 35
6 AM 34 37
7 AM 33 38
8 AM 32 40
9 AM 34 43
10 AM 36 45
11 AM 37 47
12 PM 44 48
1 PM 47 49
2 PM 46 49
3 PM 49 49
4 PM 51 48
5 PM 51 48
6 PM 51 47
7 PM 50 46
8 PM 50 45
9 PM 49 43
10 PM 45 42
11 PM 44 41
Weather and Ozone Data Wednesday July 23, 2014
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 41 1.2 NW 14.0 58 1 0.0
1 AM 39 1.2 NW 13.0 61 1 0.0
2 AM 34 1.3 N 12.3 65 1 0.0
3 AM 34 1.1 NW 12.0 63 1 0.0
4 AM 36 1.3 NW 11.8 62 1 0.0
5 AM 36 1.0 NW 12.2 56 1 0.0
6 AM 34 1.3 N 13.4 53 1 0.0
7 AM 33 1.9 SW 14.5 50 11 0.0
8 AM 32 1.2 SW 15.3 54 117 0.0
9 AM 34 1.7 SW 17.8 43 317 0.0
10 AM 36 2.1 S 19.7 34 564 0.0
11 AM 37 2.6 S 21.8 31 714 0.0
12 PM 44 3.5 S 23.8 22 837 0.0
1 PM 47 3.3 S 25.2 19 915 0.0
2 PM 46 3.7 S 25.8 18 935 0.0
3 PM 49 4.6 S 25.6 17 922 0.0
4 PM 51 4.3 S 26.2 16 869 0.0
5 PM 51 4.2 SW 25.0 18 578 0.0
6 PM 51 3.1 SW 25.0 21 425 0.0
7 PM 50 2.2 SW 25.3 22 406 0.0
8 PM 50 1.4 SW 23.0 26 106 0.0
9 PM 49 1.1 NW 19.3 35 11 0.0
10 PM 45 1.1 NW 17.4 37 1 0.0
11 PM 44 1.1 NW 15.5 41 1 0.0
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updated on 07/24/2014 8:40 AM  I   http://nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster