What is the air quality trend in Ypsilanti?

Over the past 8 days, Ypsilanti had an average AQI of 39 based on station measurements. The worst day was 2026-06-05 with AQI 50.

How is Ypsilanti air quality measured?

Air quality in Ypsilanti 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 Ypsilanti, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-06-09	38	29–55	9.3 µg/m³	9.6	11h	17
2026-06-08	48	23–152	13.5 µg/m³	7.5	24h	20
2026-06-07	35	25–49	8.4 µg/m³	5.9	24h	20
2026-06-06	43	23–74	11.0 µg/m³	22.2	24h	19
2026-06-05	50	39–57	12.3 µg/m³	13.7	24h	21
2026-06-04	37	30–51	8.8 µg/m³	4.2	24h	20
2026-06-03	34	25–49	8.2 µg/m³	3.1	24h	21
2026-06-02	30	23–50	7.2 µg/m³	1.0	13h	20

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