Pierre, SD Air Quality
Report & Trends
Analysis & History
The Verdict
Compared to other metro areas, Pierre, SD scores exceptionally well.
Plan your outdoor activities carefully in October, the statistical peak for AQI spikes in SD.
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 Pierre, SD enjoy better air than 99% of the country, yet vigilance is still needed in October. Since 2015, particle pollution days have improved, 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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Coway AP-1512HH
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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 Pierre, SD?
Based on 10 years of data, the worst months for air quality in Pierre, SD are: October (AQI 24.6), July (AQI 24.5), September (AQI 20.8). 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 Pierre, SD given the air quality?
Absolutely. Pierre, SD 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 Pierre, SD improving?
Yes. Our 10-year analysis shows a positive trend. Despite regional wildfire challenges, average particulate levels in Pierre, SD have decreased, likely due to favorable weather patterns and reduced local emissions.
Do I really need an air purifier in Pierre, SD?
For daily use, likely not. Pierre, SD'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 Pierre, SD 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
This report isn't meant to scare, but to prepare. Pierre, SD has a bright future, provided its residents take air quality seriously.