What is the air quality trend in Oak Harbor?

Over the past 19 days, Oak Harbor had an average AQI of 17 based on station measurements. The worst day was with AQI .

How is Oak Harbor air quality measured?

Air quality in Oak Harbor is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Oak Harbor, United States

Name: Oak Harbor Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Oak Harbor, United States.

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

Air Quality Index Trend

337h

PM2.5 Trend

337h · 4 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-04-13	20	8–28	4.7 µg/m³	6h	4
2026-04-12	28	18–37	6.7 µg/m³	24h	5
2026-04-11	30	4–48	7.3 µg/m³	24h	5
2026-04-10	25	10–37	5.9 µg/m³	23h	5
2026-04-09	20	3–32	4.7 µg/m³	15h	4
2026-04-08	16	8–30	3.9 µg/m³	10h	4
2026-04-07	18	11–28	4.2 µg/m³	24h	4
2026-04-06	22	13–43	5.3 µg/m³	16h	4
2026-04-04	20	9–33	4.8 µg/m³	16h	4
2026-04-03	8	4–14	1.8 µg/m³	10h	3
2026-04-02	11	6–20	2.6 µg/m³	21h	4
2026-04-01	12	7–24	3.0 µg/m³	21h	4
2026-03-31	15	6–27	3.7 µg/m³	21h	4
2026-03-30	14	4–33	3.3 µg/m³	10h	4
2026-03-29	11	6–22	2.7 µg/m³	21h	4
2026-03-28	18	10–32	4.4 µg/m³	22h	4
2026-03-27	14	6–31	3.4 µg/m³	24h	4
2026-03-26	14	6–25	3.5 µg/m³	24h	4
2026-03-25	9	8–12	2.3 µg/m³	5h	4

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