Vilas, Wisconsin Air Quality
Vilas County, Wisconsin (WI)
→ Stableover 10 years
10-Year AQI Trend
The solid line shows the median AQI each year. The dashed line shows the 90th percentile (worst 10% of days).
Air Quality Day Breakdown
Number of days per year in each EPA AQI category. Green = Good (AQI 0-50), Yellow = Moderate (51-100), Orange = Unhealthy for Sensitive Groups (101-150), Red = Unhealthy or worse (151+).
Year-by-Year Data
| Year | Median AQI | 90th Pct | Max AQI | Good Days | Moderate | Unhealthy+ | Pollutant |
|---|---|---|---|---|---|---|---|
| 2023 | 39 | 75 | 168 | 247 | 81 | 12 | PM2.5 |
| 2022 | 33 | 50 | 68 | 329 | 34 | 0 | PM2.5 |
| 2021 | 34 | 57 | 148 | 297 | 63 | 3 | PM2.5 |
| 2020 | 33 | 51 | 84 | 327 | 39 | 0 | PM2.5 |
| 2019 | 31 | 52 | 91 | 320 | 42 | 0 | PM2.5 |
| 2018 | 39 | 57 | 100 | 298 | 62 | 0 | Ozone |
| 2017 | 34 | 49 | 80 | 294 | 25 | 0 | Ozone |
| 2016 | 32 | 45 | 77 | 189 | 16 | 0 | Ozone |
| 2015 | 34 | 48 | 84 | 186 | 18 | 0 | Ozone |
| 2014 | 35 | 51 | 112 | 186 | 21 | 1 | Ozone |
What This Means for Vilas County Residents
Vilas, Wisconsin has received an Air Quality Grade of B (66/100) based on a decade of monitoring data from the EPA's air quality monitoring program. The current median AQI of 39 falls in the "Good" range.
The primary pollutant affecting this area is Ground-Level Ozone. Over the past 5 years, this area has averaged 3 unhealthy air quality days per year — days when sensitive groups (children, elderly, those with respiratory conditions) should limit outdoor activity. The American Lung Association's State of the Air report provides additional context on long-term health risks from air pollution exposure.
Related Cities in Wisconsin
Frequently Asked Questions
Vilas, Wisconsin has a current median AQI of 39, which falls in the "Good" range. The area has received an Air Quality Grade of B (66/100) based on 10 years of EPA monitoring data.
Air quality in Vilas, Wisconsin is stable over the past decade. The median AQI has changed by +4 points from 2014 to 2023.
Vilas, Wisconsin averages 3 unhealthy air quality days per year over the past 5 years. On these days, sensitive groups including children, the elderly, and those with respiratory conditions should limit outdoor activity.
The primary pollutant affecting Vilas, Wisconsin is Ground-Level Ozone. This is the dominant contributor to elevated AQI readings in the Vilas County area.
Vilas, Wisconsin averages 3 unhealthy air days per year. This is relatively low, making it a reasonable choice for asthma sufferers. The primary pollutant is Ground-Level Ozone, which is a known asthma trigger.
With a median AQI of 39 (Good), outdoor exercise in Vilas, Wisconsin is generally safe year-round. Vilas, Wisconsin averages 3 days per year when athletes should move workouts indoors.