Anchorage, AK Air Quality
Report & Trends
Analysis & History
The Verdict
This places Anchorage, AK in the top 10% of US cities for air quality.
Historically, January brings the highest volume of particulate matter.
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.
Compared to national averages, Anchorage, AK has a unique air quality profile driven by seasonal changes. Since 2015, particle pollution days have trended downward, 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.
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Common Questions
When is the worst time for air quality in Anchorage, AK?
Based on 10 years of data, the worst months for air quality in Anchorage, AK are: January (AQI 51.2), November (AQI 45.2), April (AQI 43.1). 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 Anchorage, AK given the air quality?
Absolutely. Anchorage, AK 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 Anchorage, AK improving?
Yes. Our 10-year analysis shows a positive trend. Despite regional wildfire challenges, average particulate levels in Anchorage, AK have decreased, likely due to favorable weather patterns and reduced local emissions.
Do I really need an air purifier in Anchorage, AK?
For daily use, likely not. Anchorage, AK'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 Anchorage, AK 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
Looking at the 10-year chart, the trend is undeniable. Cleaner air is possible, but it requires active management.