Low Smoke Risk

Shelton, WA Air Quality Report & Trends

Analysis & History

The Verdict

Improving

This places Shelton, WA in the top 3% of US cities for air quality.

Plan your outdoor activities carefully in December, 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.

Residents of Shelton, WA enjoy better air than 96% of the country, yet vigilance is still needed in December. Since 2015, particle pollution days have dropped, signaling a positive shift in local air hygiene.

Seasonal Risk Calendar

The "Smoke Season" Calendar

Worst Month: December
Jan26.4
Feb21.3
Mar24.6
Apr12.7
May11.2
Jun11.1
Jul22.8
Aug24.9
Sep23.7
Oct27.4
Nov33.6
Dec34.7

Values represent historical Average Monthly AQI (PM2.5). Higher is worse.

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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 Shelton, WA?

Based on 10 years of data, the worst months for air quality in Shelton, WA are: December (AQI 34.7), November (AQI 33.6), October (AQI 27.4). These months typically see the highest concentrations of PM2.5 due to fine particulate matter trapped by local geography.

Is it safe to move to Shelton, WA given the air quality?

Absolutely. Shelton, 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 Shelton, WA improving?

Yes. Our 10-year analysis shows a positive trend. Despite regional wildfire challenges, average particulate levels in Shelton, WA have decreased, likely due to favorable weather patterns and reduced local emissions.

Do I really need an air purifier in Shelton, WA?

For daily use, likely not. Shelton, 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.

Broader Risk Analysis

Is Shelton, 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 pollution season.

Data VerifiedUpdated 2025