National Park Service Arrowhead
Explore Air

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 Saturday June 25, 2016 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 48 42
1 AM 46 41
2 AM 44 41
3 AM 39 42
4 AM 40 43
5 AM 42 44
6 AM 40 45
7 AM 41 46
8 AM 40 47
9 AM 46 48
10 AM 49 --
11 AM 49 --
12 PM 48 --
1 PM 48 --
2 PM 49 --
Weather and Ozone Data Saturday June 25, 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 48 3.4 SW 8.6 29 0 0.0
1 AM 46 3.2 SW 8.0 28 0 0.0
2 AM 44 2.3 SW 6.5 36 0 0.0
3 AM 39 0.8 NW 3.8 51 0 0.0
4 AM 40 1.2 W 2.9 58 0 0.0
5 AM 42 1.3 SW 2.8 53 0 0.0
6 AM 40 0.9 W 0.5 63 3 0.0
7 AM 41 1.3 SW 1.7 59 17 0.0
8 AM 40 1.4 S 3.3 55 159 0.0
9 AM 46 2.5 SW 5.9 39 373 0.0
10 AM 49 3.2 SW 8.0 30 626 0.0
11 AM 49 3.4 SW 9.9 27 778 0.0
12 PM 48 3.1 SW 11.6 25 894 0.0
1 PM 48 3.4 SW 13.3 25 968 0.0
2 PM 49 3.0 SW 14.3 23 993 0.0
U.S. Department of the Interior Accessibility Freedom of Information Act USA.gov Search
Privacy Policy Disclaimer NPS Home Contact Us
updated on 06/25/2016 2:44 PM  I   http://nature.nps.gov/air/data/current/data_YELL-WT.cfm   I  Email: Webmaster