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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 July 25, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 51 54
1 AM 51 54
2 AM 52 53
3 AM 52 52
4 AM 59 53
5 AM 59 53
6 AM 58 53
7 AM 56 53
8 AM 51 53
9 AM 43 55
10 AM 44 57
11 AM 58 59
12 PM 57 59
1 PM 57 59
2 PM 58 58
3 PM 62 57
4 PM 61 57
5 PM 63 56
6 PM 62 --
7 PM 57 --
8 PM 53 --
9 PM 51 --
10 PM 52 --
Weather and Ozone Data Friday July 25, 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 51 1.1 W 8.7 35 1 0.0
1 AM 51 1.2 NW 7.8 39 1 0.0
2 AM 52 1.1 NW 7.2 42 1 0.0
3 AM 52 1.3 NW 6.2 42 1 0.0
4 AM 59 1.1 NW 5.7 40 1 0.0
5 AM 59 1.0 N 4.6 44 1 0.0
6 AM 58 1.3 NW 3.9 45 1 0.0
7 AM 56 0.9 NW 3.5 47 13 0.0
8 AM 51 0.8 SE 6.4 52 71 0.0
9 AM 43 1.5 SE 8.8 62 322 0.0
10 AM 44 1.6 SE 11.2 54 565 0.0
11 AM 58 2.5 SE 14.6 30 741 0.0
12 PM 57 3.5 S 17.4 20 860 0.0
1 PM 57 3.8 S 18.8 14 935 0.0
2 PM 58 4.4 S 19.4 12 960 0.0
3 PM 62 4.2 S 20.1 10 939 0.0
4 PM 61 4.5 SW 20.4 8 865 0.0
5 PM 63 4.6 SW 20.3 8 748 0.0
6 PM 62 3.8 SW 20.1 9 594 0.0
7 PM 57 2.9 SW 19.4 11 378 0.0
8 PM 53 1.9 SW 17.4 19 93 0.0
9 PM 51 0.9 W 13.9 31 10 0.0
10 PM 52 1.2 NW 11.6 37 1 0.0
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updated on 07/25/2014 10:41 PM  I   http://www.nature.nps.gov/air/data/current/data_YELL-WT.cfm   I  Email: Webmaster