Ann Arbor Air Quality in 2022
In 2022, Ann Arbor's air quality (Ann Arbor, MI area) had a median daily AQI of 46 (Good) across 365 monitored days. 1 day (0.3%) reached Unhealthy for Sensitive Groups or worse, 222 were Good, and the year's peak AQI was 101 (Unhealthy for Sensitive Groups). Fine particulate matter (PM2.5) set the daily AQI on 213 of those days. The cleanest month of 2022 was April (median AQI 39, 0 days above 100) and the worst was June (median 49, 1 day above 100, peak 101).
- Good: 60.8%
- Moderate: 38.9%
- Unhealthy for Sensitive Groups: 0.3%
- Unhealthy or worse: 0.0%
Extra Protection for Ann Arbor Homes
Air quality in Ann Arbor is moderate (AQI 56), with fine particles (PM2.5) the main concern. A True-HEPA purifier gives sensitive groups — kids, seniors and anyone with asthma or allergies — cleaner air indoors on days like today.
Recommended: Coway AP-1512HH Mighty — True HEPA + carbon · CADR ~246 CFM · rooms up to 361 sq ft
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How was Ann Arbor's air quality in 2022?
Good on a typical day: median AQI 46, with 1 day above AQI 100 out of 365 monitored — the 4th cleanest of 7 years on record for the area.
- ✓Peak AQI in 2022: 101 (Unhealthy for Sensitive Groups).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 213 days.
- ✓Cleanest month: April; worst: June.
Frequently asked questions
What was the average AQI in Ann Arbor in 2022?▾
EPA's Air Quality System puts Ann Arbor's (Ann Arbor, MI) median daily AQI for 2022 at 46, which is Good. 1 day were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 101.
Which month had the worst air quality in Ann Arbor in 2022?▾
The cleanest month of 2022 was April (median AQI 39, 0 days above 100) and the worst was June (median 49, 1 day above 100, peak 101).
Was 2022 a good or bad year for Ann Arbor's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2022 ranks 4th cleanest by days above AQI 100. 2022's median of 46 is in line with the area's typical annual median of 44.
Ann Arbor month by month in 2022
Ann Arbor air quality month by month, 2022 (Ann Arbor, MI, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 52 | 0 | 81 | PM2.5 |
| February | 28 | 47 | 0 | 78 | PM2.5 |
| March | 31 | 41 | 0 | 84 | PM2.5 |
| Aprilcleanest | 30 | 39 | 0 | 65 | O3 |
| May | 31 | 46 | 0 | 97 | O3 |
| Juneworst | 30 | 49 | 1 | 101 | O3 |
| July | 31 | 47 | 0 | 74 | O3 |
| August | 31 | 41 | 0 | 55 | O3 |
| September | 30 | 44 | 0 | 59 | PM2.5 |
| October | 31 | 58 | 0 | 98 | PM2.5 |
| November | 30 | 53 | 0 | 90 | PM2.5 |
| December | 31 | 52 | 0 | 90 | PM2.5 |
How 2022 compares
Among the 7 years EPA has published for the area (2019–2025), 2022 ranks 4th cleanest by days above AQI 100.
2022's median of 46 is in line with the area's typical annual median of 44.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Ann Arbor
The latest EPA AirNow observation puts Ann Arbor's AQI at 56 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Ann Arbor air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Ann Arbor, MI), 2019–2025. Daily AQI per CBSA is the highest AQI reported by any monitor in the area that day; the defining parameter is the pollutant that set it. Month and season statistics pool every such day in the period across all years listed. Retrieved 2026-09-09.