High Smoke Risk

Vernal, UT Air Quality Report & Trends

Analysis & History

The Verdict

Stable

Vernal, UT is currently ranked #145 out of 224 cities tracked.

Plan your outdoor activities carefully in July, the statistical peak for AQI spikes in UT.

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.

Our 10-year analysis of Vernal, UT reveals a distinct pattern in wildfire smoke exposure. Despite seasonal fluctuations, year-over-year averages have shown little variance.

Seasonal Risk Calendar

The "Smoke Season" Calendar

Worst Month: July
Jan45.3
Feb43.2
Mar46.4
Apr56.2
May61.9
Jun57.1
Jul81.5
Aug59.8
Sep55.1
Oct50.8
Nov39.7
Dec43.3

Values represent historical Average Monthly AQI (PM2.5). Higher is worse.

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sq ft
Small Bedroom (100)Open Living (800+)
Required Smoke CADR: 192
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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 Vernal, UT?

Based on 10 years of data, the worst months for air quality in Vernal, UT are: July (AQI 81.5), May (AQI 61.9), August (AQI 59.8). 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 Vernal, UT given the air quality?

Yes, but with caveats. Vernal, UT offers an incredible quality of life, but new residents should be aware of the "smoke season." Most homes in the area need robust air filtration systems to maintain safe indoor levels during these few weeks a year.

How is the air quality changing in Vernal, UT?

It is holding steady. While some seasons see short-term spikes, the long-term annual average for Vernal, UT 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 Vernal, UT?

Based on the 10-year analysis, absolutely. The levels of PM2.5 recorded during peak events are unsafe for indoor occupation without filtration. A CADR-rated purifier is considered essential appliance for Vernal, UT households.

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 Vernal, UT 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

Knowledge is safety. Now that you see the seasonal patterns, you can prepare your home before the sky turns orange.

Data VerifiedUpdated 2025