Low Smoke Risk

Moses Lake, WA Air Quality Report & Trends

Analysis & History

The Verdict

Stable

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

Worst Month: August
Jan32.1
Feb27.0
Mar22.5
Apr18.3
May18.2
Jun18.8
Jul44.3
Aug44.6
Sep31.6
Oct31.4
Nov32.4
Dec31.6

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 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.

Broader Risk Analysis

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.

Data VerifiedUpdated 2025