Grand Rapids Air Quality in 2020
In 2020, Grand Rapids's air quality (Grand Rapids-Wyoming, MI area) had a median daily AQI of 39 (Good) across 366 monitored days. 8 days (2.2%) reached Unhealthy for Sensitive Groups or worse, 265 were Good, and the year's peak AQI was 154 (Unhealthy). Ground-level ozone set the daily AQI on 216 of those days. The cleanest month of 2020 was December (median AQI 27, 0 days above 100) and the worst was June (median 54, 5 days above 100, peak 150).
- Good: 72.4%
- Moderate: 25.4%
- Unhealthy for Sensitive Groups: 1.9%
- Unhealthy or worse: 0.3%
Extra Protection for Grand Rapids Homes
Air quality in Grand Rapids is moderate (AQI 58), 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 Grand Rapids's air quality in 2020?
Good on a typical day: median AQI 39, with 8 days above AQI 100 out of 366 monitored — the 5th cleanest of 7 years on record for the area.
- ✓Peak AQI in 2020: 154 (Unhealthy).
- ✓Ground-level ozone was the main pollutant on 216 days.
- ✓Cleanest month: December; worst: June.
Frequently asked questions
What was the average AQI in Grand Rapids in 2020?▾
EPA's Air Quality System puts Grand Rapids's (Grand Rapids-Wyoming, MI) median daily AQI for 2020 at 39, which is Good. 8 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 154.
Which month had the worst air quality in Grand Rapids in 2020?▾
The cleanest month of 2020 was December (median AQI 27, 0 days above 100) and the worst was June (median 54, 5 days above 100, peak 150).
Was 2020 a good or bad year for Grand Rapids's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2020 ranks 5th cleanest by days above AQI 100. 2020's median of 39 is below the area's typical annual median of 51.
Grand Rapids month by month in 2020
Grand Rapids air quality month by month, 2020 (Grand Rapids-Wyoming, MI, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 36 | 0 | 65 | PM2.5 |
| February | 29 | 39 | 0 | 63 | PM2.5 |
| March | 31 | 41 | 0 | 67 | PM2.5 |
| April | 30 | 41 | 0 | 67 | O3 |
| May | 31 | 43 | 0 | 64 | O3 |
| Juneworst | 30 | 54 | 5 | 150 | O3 |
| July | 31 | 50 | 2 | 154 | O3 |
| August | 31 | 48 | 1 | 108 | O3 |
| September | 30 | 41 | 0 | 62 | PM2.5 |
| October | 31 | 29 | 0 | 64 | O3 |
| November | 30 | 29 | 0 | 70 | O3 |
| Decembercleanest | 31 | 27 | 0 | 65 | O3 |
How 2020 compares
Among the 7 years EPA has published for the area (2019–2025), 2020 ranks 5th cleanest by days above AQI 100.
2020's median of 39 is below the area's typical annual median of 51.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Grand Rapids
The latest EPA AirNow observation puts Grand Rapids's AQI at 58 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Grand Rapids air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Grand Rapids-Wyoming, 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.