Sioux Falls, SD Air Quality
Report & Trends
Analysis & History
The Verdict
This places Sioux Falls, SD in the top 29% of US cities for air quality.
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.
If you live in Sioux Falls, SD, particle pollution is specifically a concern during October. Since 2015, particle pollution 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
Don't guess. Enter your room size to see exactly which machine clears smoke in 15 minutes.
Coway AP-1512HH
The industry standard. Perfect for living rooms.
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 Sioux Falls, SD?
Based on 10 years of data, the worst months for air quality in Sioux Falls, SD are: October (AQI 55.5), May (AQI 47.2), September (AQI 46.4). 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 Sioux Falls, SD given the air quality?
Absolutely. Sioux Falls, 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 Sioux Falls, SD improving?
Yes. Our 10-year analysis shows a positive trend. Despite regional wildfire challenges, average particulate levels in Sioux Falls, SD have decreased, likely due to favorable weather patterns and reduced local emissions.
Do I really need an air purifier in Sioux Falls, SD?
For daily use, likely not. Sioux Falls, 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 Sioux Falls, 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
While we can't control the environment, we can control our indoor air. Sioux Falls, SD residents must adapt.