Oak Harbor, WA
Long-term air quality
What this page tells you
This page combines annual PM2.5, unhealthy days, 5-year trend, and data coverage so you can compare long-term air quality, not just today's reading.
Oak Harbor, WA air quality summary: Oak Harbor, WA, achieves an excellent CleanAirData score of 89.6 and a grade of A for long-term air quality. The annual mean PM2.5 concentration is 4.4 µg/m³. In Oak Harbor, the annual mean PM2.5 concentration is 4.4 µg/m³. Air quality in Oak Harbor has shown a trend of improvement over the long term.
Clean Air Score
The score of 89.6 and A grade reflect an environment with very low levels of fine particulate exposure. These conditions are ideal for long-term residential living.
🏡 What This Means for Buying
Oak Harbor is a premier choice for those seeking a high-quality environmental setting. The air quality data indicates exceptional long-term cleanliness.
Indoor Air Quality in Oak Harbor, WA
Outdoor pollution can still affect indoor air when windows are open, filtration is weak, or wildfire smoke moves in.
How to react when today's AQI changes
Use the AQI bands below to decide whether to open windows, run an air purifier, or stay indoors when pollution spikes in Oak Harbor.
AQI 0-50
GoodOpen windows: Open windows if you want fresh air.
Air purifier: No purifier needed for most homes.
Indoor activity: Normal indoor activity is fine.
AQI 51-100
ModerateOpen windows: Sensitive groups should limit open-window time.
Air purifier: Use fans or filtration if dust or pollen is bothering you.
Indoor activity: Most people can stay active indoors.
AQI 101-150
Unhealthy for Sensitive GroupsOpen windows: Keep windows closed.
Air purifier: Run a HEPA purifier in the main room and bedroom.
Indoor activity: Sensitive groups should reduce outdoor exposure.
AQI 151+
UnhealthyOpen windows: Keep windows and doors closed.
Air purifier: Run HEPA continuously and seal obvious drafts.
Indoor activity: Stay indoors as much as possible; use an N95 if you must go out.
Common indoor air concerns in Oak Harbor:
- Wildfire smoke infiltration (PM2.5)
- Seasonal pollen and dust mite allergens
- VOCs from household products
Recommended action: If today's AQI reaches 101 or higher, close windows and run HEPA filtration before indoor air starts to feel smoky or stale.
Top Products for Oak Harbor Homes:
🩺 My Health Risk Assessment
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Health Advice
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</> Create Free Widget🏡 Property Value Impact Analysis
Between 2019 and 2024, Oak Harbor's air quality improved by 1.1 μg/m³. Based on NBER studies, this change correlates with a estimated 4.4% increase in relative property value retention.
Cleaner Alternatives in WA
No cleaner cities found in this state. Oak Harbor is already a top performer!
Why Oak Harbor earned a 89.6
Raw inputs, scoring weights, and data coverage for this city.
Best Time to Run
Find the cleanest hours for your run today.
Cycling Forecast
Avoid pollution spikes on your next ride.
📅 Past 30 Days Trend
Real-time daily PM2.5 AQI
🌸 Pollen Outlook
Current Seasonal Forecast
How it worksBased on current seasonal forecast data. Not a long-term pollution rating or relocation score.
Score Breakdown
| Component | Weight | Score Contribution |
|---|---|---|
| Annual Air Quality | 40% | 100 |
| Unhealthy Days | 25% | 100 |
| 5-Year Trend | 20% | 55.5 |
| Seasonal Variability | 10% | 96.3 |
| Extreme Events | 5% | 100 |
Explore More Air Quality Data
Frequently Asked Questions
About This Data
Data Sources
Historical air quality mapping and scoring are based completely on official U.S. Environmental Protection Agency (EPA) AirNow API data. 5-day AQI forecasts are provided by WAQI.
Methodology
Our Clean Air Score (0-100) is a proprietary algorithm that weighs multiple factors:
- Annual PM2.5 averages (40%)
- Frequency of unhealthy days (25%)
- 5-year pollution trends (20%)
- Seasonal variability and extreme events (15%)
Updates & Accuracy
Real-time data is updated hourly. Historical aggregate scores are recalculated monthly to reflect the latest trends. While we strive for accuracy, sensor maintenance and local conditions can affect individual readings.
Practical Advice
When AQI > 100: Sensitive groups (children, elderly, asthmatics) should limit prolonged outdoor exertion.
When AQI > 150: Everyone should avoid outdoor exercise and keep windows closed.
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Oak Harbor Air Quality FAQs
Is Oak Harbor a good fit for people who care about long-term air quality?
Oak Harbor is an outstanding fit, holding an 89.6 score and an A grade. Its annual mean PM2.5 concentration of 4.4 µg/m³ represents very low particulate exposure.
What is the frequency of unhealthy air or long-term pollution exposure in Oak Harbor?
Oak Harbor experiences 0% unhealthy air days, a key factor in its A grade. This is supported by its exceptionally low PM2.5 annual mean of 4.4 µg/m³.
Is air quality in Oak Harbor improving or getting worse over time?
The long-term trend for air quality in Oak Harbor is improving. This indicates that particulate levels have been declining over the past several years.
Does air quality vary across different parts of Oak Harbor?
Air quality can fluctuate within Oak Harbor due to coastal weather patterns and local traffic. While the city-wide data is excellent, localized conditions near transit points may vary slightly.