Mount Vernon, WA Air Quality
Report & Trends
Analysis & History
The Verdict
This places Mount Vernon, WA in the top 9% of US cities for air quality.
Plan your outdoor activities carefully in July, the statistical peak for AQI spikes in WA.
Health Recommendation
Sensitive groups should consider monitoring daily forecast apps significantly closer.
10-Year Annual PM2.5 Average
Analysis: Annual average Median AQI from 2015 to 2025.
Mount Vernon, WA ranks as one of the cleanest cities in our database, but it isn't immune to seasonal spikes. Since 2015, wildfire smoke days have dropped, signaling a positive shift in local air hygiene.
Seasonal Risk Calendar
The "Smoke Season" Calendar
Values represent historical Average Monthly AQI (PM2.5). Higher is worse.
Calculate Your Wildfire Defense
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Wildfire smoke is 2.5 microns wide—too small for normal filters. Using an undersized purifier is dangerous false security.
Common Questions
When is the worst time for air quality in Mount Vernon, WA?
Based on 10 years of data, the worst months for air quality in Mount Vernon, WA are: July (AQI 34.3), May (AQI 33.5), August (AQI 31.9). These months typically see the highest concentrations of PM2.5 due to smoke from fires hundreds of miles away.
Is it safe to move to Mount Vernon, WA given the air quality?
Absolutely. Mount Vernon, WA has some of the cleanest air in the country. While no place is immune to occasional regional smoke, the long-term data shows it is a safe and healthy environment for residents.
Is the air quality in Mount Vernon, WA improving?
Yes. Our 10-year analysis shows a positive trend. Despite regional wildfire challenges, average particulate levels in Mount Vernon, WA have decreased, likely due to favorable weather patterns and reduced local emissions.
Do I really need an air purifier in Mount Vernon, WA?
For daily use, likely not. Mount Vernon, WA's air quality consistently rates as "Good." However, owning one as a precaution for wildfire season or allergy relief is still a smart decision for sensitive groups.
How accurate is this data?
This report is built on official EPA Air Quality System (AQS) data. We aggregated daily summary files from 2014 to present to build these charts. Unlike real-time apps that estimate, this is the verified historical record.
Is Mount Vernon, WA safe from other disasters?
Air quality is just one factor. Check our sister site for a complete analysis of tornado, hurricane, and flood risks.
Full Safety Report →Summary
The area is worth it, but it come with a new cost: vigilance during smoke season.