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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 February 25, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 41 38
1 AM 40 39
2 AM 40 39
3 AM 39 40
4 AM 39 40
5 AM 38 41
6 AM 37 41
7 AM 37 42
8 AM 43 43
9 AM 44 43
10 AM 45 43
11 AM 44 42
12 PM 43 42
1 PM 42 42
2 PM 43 42
3 PM 42 42
4 PM 43 42
5 PM 43 41
6 PM 43 40
7 PM 43 39
8 PM 41 39
9 PM 41 39
10 PM 41 39
11 PM 41 39
Weather and Ozone Data Wednesday February 25, 2015
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 1.0 S -5.3 71 0 0.0
1 AM 40 0.7 N -6.9 82 0 0.0
2 AM 40 0.6 N -6.2 79 0 0.0
3 AM 39 0.5 NW -5.5 75 0 0.0
4 AM 39 0.5 SW -5.4 72 0 0.0
5 AM 38 0.8 W -5.8 76 0 0.0
6 AM 37 0.6 N -5.6 87 0 0.0
7 AM 37 0.8 SW -6.3 90 0 0.0
8 AM 43 1.3 NW -6.6 87 10 0.2
9 AM 44 2.2 N -4.8 72 155 0.0
10 AM 45 2.9 N -2.7 57 368 0.0
11 AM 44 2.9 N -2.1 59 467 0.0
12 PM 43 2.9 NW 0.0 43 663 0.0
1 PM 42 3.0 NW 0.3 38 675 0.0
2 PM 43 3.2 N 0.1 34 642 0.0
3 PM 42 2.6 N -0.6 42 534 0.0
4 PM 43 2.6 N -1.2 45 254 0.0
5 PM 43 1.9 NW -1.0 44 225 0.0
6 PM 43 1.5 NW -6.8 50 23 0.0
7 PM 43 1.6 NW -10.1 60 1 0.0
8 PM 41 0.9 N -12.6 72 0 0.0
9 PM 41 0.7 NW -14.4 76 0 0.0
10 PM 41 1.0 NW -15.0 82 0 0.0
11 PM 41 0.9 NW -14.6 82 0 0.0
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updated on 02/26/2015 3:44 PM  I   http://nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster