Wilmore, Pennsylvania Air Quality
Wilmore has a median AQI of 37, earning an air quality grade of A — excellent air quality that ranks better than 74% of US cities. Air quality has been improving steadily over the past decade, a positive sign for residents. Particulate matter (PM2.5) is the primary concern, often linked to vehicle traffic, industrial activity, and wildfire smoke. In 2025, Wilmore recorded 209 good air quality days (78% of monitored days) and 1 unhealthy days.
Population: 394 • County: Cambria
Current AQI
Quick Facts
| Current AQI | 21 — Good |
| Air Quality Grade | A |
| Median AQI (2025) | 37 |
| vs. U.S. Cities | Better than 74% |
| Primary Pollutant | PM2.5 |
| Unhealthy Days/Year | 1 |
| 10-Year Trend | ↑ Improving |
| Data Source | EPA AQS (historical) · AirNow (live) |
Health Recommendation
Air quality is satisfactory, and air pollution poses little or no risk.
It's a great day to be active outside!
5-Day AQI Forecast
Last 90 Days
Current Pollutant Levels
Real-time data from EPA AirNow
Local Air Quality Context
Air quality data for Wilmore is sourced from the Johnstown monitoring area, located approximately 12 miles from city center. This EPA-certified station continuously tracks particulate matter (PM2.5), the primary driver of air quality alerts in this area.
Wilmore tends to see elevated PM2.5 readings during fall and winter months when temperature inversions trap pollutants near the surface. Wood burning, vehicle exhaust, and reduced wind speeds compound the effect. Residents with respiratory conditions should monitor forecasts closely between November and February.
AQI Trend (10 Years)
Air Quality Days by Year
Wilmore Median AQI by Year
Annual EPA air quality data for Wilmore — median AQI, day-category breakdown, and primary pollutant per year.
| Year | Median AQI | Good Days | Unhealthy Days | Max AQI | Primary Pollutant |
|---|---|---|---|---|---|
| 2025 | 37 | 209 | 1 | 115 | PM2.5 |
| 2024 | 42 | 269 | — | 87 | PM2.5 |
| 2023 | 46 | 213 | 3 | 201 | PM2.5 |
| 2022 | 52 | 171 | 1 | 119 | PM2.5 |
| 2021 | 51 | 169 | 1 | 130 | PM2.5 |
| 2020 | 44 | 228 | — | 90 | PM2.5 |
| 2019 | 45 | 229 | — | 89 | PM2.5 |
| 2018 | 44 | 230 | — | 93 | PM2.5 |
| 2017 | 55 | 121 | — | 92 | PM2.5 |
| 2016 | 46 | 211 | — | 97 | PM2.5 |
Source: EPA Air Quality System (AQS) annual summaries. "Unhealthy Days" includes Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, and Hazardous categories.
2025 Air Quality Summary
Primary Pollutant Days (2025)
Days when each pollutant was the primary driver of AQI. Learn about pollutants →
Frequently Asked Questions About Wilmore Air Quality
What is the air quality in Wilmore today?
The current AQI in Wilmore is 21, rated "Good". Air quality is good — outdoor activity is safe for everyone today. Air quality is satisfactory, and air pollution poses little or no risk.
Is air quality in Wilmore getting better or worse?
Air quality in Wilmore has been improving. The median AQI has dropped 9 points (from 46 in 2016 to 37 in 2025), a positive trend for residents.
What is the most common air pollutant in Wilmore?
PM2.5 is the primary air pollutant in Wilmore, responsible for 107 days (40% of monitored days) in 2025. Particulate matter originates from vehicle exhaust, wildfires, construction, and industrial activity.
How many unhealthy air days does Wilmore have per year?
In 2025, Wilmore recorded 78% good air quality days (209 days) out of 269 monitored days. There were 1 Unhealthy for Sensitive Groups days and 0 Unhealthy days (AQI above 100). The highest single-day AQI recorded was 115.
What air quality grade does Wilmore receive?
Wilmore receives an air quality grade of A, placing it better than 74% of US cities. This is based on a median AQI of 37 in 2025, with 209 good air quality days. The EPA monitors air quality in this area continuously using certified monitoring stations.
Air Quality Grade
Better than 74% of US cities
Nearby Cities
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National Rankings
See how Wilmore compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Wilmore
Wilmore sees its worst PM2.5 during winter temperature inversions when particulates get trapped near ground level. A unit with True HEPA and an auto-mode sensor is most effective for responding to these spikes.
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