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Current Ozone and Weather Data in National Parks


Select a Monitoring Site from the Map or List Below

Acadia National Park - McFarland Hill Big Bend National Park - K-Bar Ranch Road Canyonlands National Park - Island in the Sky Carlsbad Caverns National Park Chiricahua National Monument - Entrance Station Craters of the Moon National Monument - Visitor Center Death Valley National Park - Park Village Denali National Park and Preserve - Headquarters Dinosaur National Monument - West Entrance Glacier National Park - West Glacier Horse Stables Grand Canyon National Park - The Abyss Grand Teton National Park - Science School Great Basin National Park - Maintenance Yard Great Smoky Mountains Nat'l Park - Cades Cove Great Smoky Mountains Nat'l Park - Clingmans Dome Great Smoky Mountains Nat'l Park - Cove Mountain Great Smoky Mountains Nat'l Park - Look Rock Joshua Tree National Park - Black Rock Joshua Tree National Park - Cottonwood Canyon Joshua Tree National Park - Pinto Wells Lassen Volcanic National Park - Manzanita Lake Fire Station Mammoth Cave NP - Houchin Meadows Meeker-Plant Science Mesa Verde National Park - Maintenance Yard Mojave National Preserve -  Kelso Mountain Petrified Forest National Park - South Entrance Pinnacles National Monument - East Entrance Rangely Golf Course Rocky Mountain National Park - Longs Peak Sequoia National Park - Ash Mountain Sequoia National Park - Lower Kaweah Shenandoah NP - Big Meadows Theodore Roosevelt National Park - Visitor Center Voyageurs National Park - Sullivan Bay Wind Cave NP - Visitor Center Yellowstone National Park - Water Tower Yosemite National Park - Turtleback Dome Zion National Park - Dalton Wash
National Park Service Air Quality Ozone and Weather Monitoring Stations
Web Cameras EPA AirNow Get Ozone Data Ozone Health Advisory Ozone Standard Exceedances
Last Updated: Thursday July 20, 2017 11:45 PM Mountain Time 
Monitoring Site Data
Timelines
Ending Hour
(Local Time)
Last Posted 1-Hour Average Ozone Concentration
(parts per billion)
 Acadia National Park - McFarland Hill, ME Click icon to display multi-day data tiemline chart 1 AM, Jul-21 45
 Big Bend National Park - K-Bar Ranch Road, TX Click icon to display multi-day data tiemline chart 12 AM, Jul-21 34
 Canyonlands National Park - Island in the Sky, UT Click icon to display multi-day data tiemline chart 11 PM, Jul-20 58
 Carlsbad Caverns National Park, NM Click icon to display multi-day data tiemline chart 11 PM, Jul-20 23
 Chiricahua National Monument - Entrance Station, AZ Click icon to display multi-day data tiemline chart 10 PM, Jul-20 28
 Craters of the Moon National Monument - Visitor Center, ID Click icon to display multi-day data tiemline chart 11 PM, Jul-20 59
 Death Valley National Park - Park Village, CA Click icon to display multi-day data tiemline chart 10 PM, Jul-20 65
 Denali National Park and Preserve - Headquarters, AK Click icon to display multi-day data tiemline chart 9 PM, Jul-20 18
 Dinosaur National Monument - West Entrance, UT Click icon to display multi-day data tiemline chart 11 PM, Jul-20 54
 Glacier National Park - West Glacier Horse Stables, MT Click icon to display multi-day data tiemline chart 11 PM, Jul-20 43
 Grand Canyon National Park - The Abyss, AZ Click icon to display multi-day data tiemline chart 10 PM, Jul-20 39
 Grand Teton National Park - Science School, WY Click icon to display multi-day data tiemline chart 11 PM, Jul-20 12
 Great Basin National Park - Maintenance Yard, NV Click icon to display multi-day data tiemline chart 10 PM, Jul-20 37
 Great Smoky Mountains Nat'l Park - Clingmans Dome, TN Click icon to display multi-day data tiemline chart 1 AM, Jul-21 55
 Great Smoky Mountains Nat'l Park - Cove Mountain, TN Click icon to display multi-day data tiemline chart 1 AM, Jul-21 53
 Great Smoky Mountains Nat'l Park - Look Rock, TN Click icon to display multi-day data tiemline chart 1 AM, Jul-21 53
 Joshua Tree National Park - Black Rock, CA Click icon to display multi-day data tiemline chart 10 PM, Jul-20 63
 Joshua Tree National Park - Cottonwood Canyon, CA Click icon to display multi-day data tiemline chart 10 PM, Jul-20 --
 Joshua Tree National Park - Pinto Wells, CA Click icon to display multi-day data tiemline chart 10 PM, Jul-20 43
 Lassen Volcanic National Park - Manzanita Lake Fire Station, CA Click icon to display multi-day data tiemline chart 10 PM, Jul-20 45
 Mammoth Cave NP - Houchin Meadows, KY Click icon to display multi-day data tiemline chart 12 AM, Jul-21 31
 Meeker-Plant Science, CO Click icon to display multi-day data tiemline chart 11 PM, Jul-20 40
 Mesa Verde National Park - Maintenance Yard, CO Click icon to display multi-day data tiemline chart 11 PM, Jul-20 55
 Mojave National Preserve - Kelso Mountain, CA Click icon to display multi-day data tiemline chart 10 PM, Jul-20 71
 Petrified Forest National Park - South Entrance, AZ Click icon to display multi-day data tiemline chart 10 PM, Jul-20 48
 Pinnacles National Monument - East Entrance, CA Click icon to display multi-day data tiemline chart 10 PM, Jul-20 38
 Rangely Golf Course, CO Click icon to display multi-day data tiemline chart 11 PM, Jul-20 52
 Rocky Mountain National Park - Longs Peak, CO Click icon to display multi-day data tiemline chart 11 PM, Jul-20 20
 Sequoia National Park - Ash Mountain, CA Click icon to display multi-day data tiemline chart 10 PM, Jul-20 70
 Sequoia National Park - Lower Kaweah, CA Click icon to display multi-day data tiemline chart 10 PM, Jul-20 74
 Shenandoah NP - Big Meadows, VA Click icon to display multi-day data tiemline chart 1 AM, Jul-21 50
 Theodore Roosevelt National Park - Visitor Center, ND Click icon to display multi-day data tiemline chart 11 PM, Jul-20 38
 Voyageurs National Park - Sullivan Bay, MN Click icon to display multi-day data tiemline chart 12 AM, Jul-21 25
 Wind Cave NP - Visitor Center, SD Click icon to display multi-day data tiemline chart 11 PM, Jul-20 55
 Yellowstone National Park - Water Tower, WY Click icon to display multi-day data tiemline chart 11 PM, Jul-20 39
 Yosemite National Park - Turtleback Dome, CA Click icon to display multi-day data tiemline chart 10 PM, Jul-20 56
 Zion National Park - Dalton Wash, UT Click icon to display multi-day data tiemline chart 11 PM, Jul-20 48
updated on 07/20/2017 11:45 PM  I   http://www.nature.nps.gov/air/data/current/index.cfm   I  Email: Webmaster