Moses Lake, WA Air Quality
Report & Trends
Analysis & History
The Verdict
This places Moses Lake, WA in the top 4% of US cities for air quality.
Plan your outdoor activities carefully in August, 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.
If you live in Moses Lake, WA, wildfire smoke is specifically a concern during August. Despite seasonal fluctuations, year-over-year averages have held steady.
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 Moses Lake, WA?
Based on 10 years of data, the worst months for air quality in Moses Lake, WA are: August (AQI 44.6), July (AQI 44.3), November (AQI 32.4). 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 Moses Lake, WA given the air quality?
Absolutely. Moses Lake, 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.
How is the air quality changing in Moses Lake, WA?
It is holding steady. While some seasons see short-term spikes, the long-term annual average for Moses Lake, WA has remained consistent over the last decade, avoiding the sharp declines seen in other parts of the region.
Do I really need an air purifier in Moses Lake, WA?
For daily use, likely not. Moses Lake, 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 Moses Lake, 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
This report isn't meant to scare, but to prepare. Moses Lake, WA has a bright future, provided its citizens take air quality seriously.