Flint Air Quality in 2024
In 2024, Flint's air quality (Flint, MI area) had a median daily AQI of 42 (Good) across 347 monitored days. 1 day (0.3%) reached Unhealthy for Sensitive Groups or worse, 252 were Good, and the year's peak AQI was 119 (Unhealthy for Sensitive Groups). Fine particulate matter (PM2.5) set the daily AQI on 182 of those days. The cleanest month of 2024 was December (median AQI 33, 0 days above 100) and the worst was July (median 48, 1 day above 100, peak 119).
- Good: 72.6%
- Moderate: 27.1%
- Unhealthy for Sensitive Groups: 0.3%
- Unhealthy or worse: 0.0%
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How was Flint's air quality in 2024?
Good on a typical day: median AQI 42, with 1 day above AQI 100 out of 347 monitored — the 3rd cleanest of 7 years on record for the area.
- ✓Peak AQI in 2024: 119 (Unhealthy for Sensitive Groups).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 182 days.
- ✓Cleanest month: December; worst: July.
Frequently asked questions
What was the average AQI in Flint in 2024?▾
EPA's Air Quality System puts Flint's (Flint, MI) median daily AQI for 2024 at 42, which is Good. 1 day were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 119.
Which month had the worst air quality in Flint in 2024?▾
The cleanest month of 2024 was December (median AQI 33, 0 days above 100) and the worst was July (median 48, 1 day above 100, peak 119).
Was 2024 a good or bad year for Flint's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2024 ranks 3rd cleanest by days above AQI 100. 2024's median of 42 is in line with the area's typical annual median of 42.
Flint month by month in 2024
Flint air quality month by month, 2024 (Flint, MI, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 42 | 0 | 70 | PM2.5 |
| February | 29 | 37 | 0 | 67 | PM2.5 |
| March | 31 | 36 | 0 | 53 | O3 |
| April | 30 | 42 | 0 | 51 | O3 |
| May | 31 | 47 | 0 | 87 | O3 |
| June | 30 | 46 | 0 | 84 | O3 |
| Julyworst | 31 | 48 | 1 | 119 | PM2.5 |
| August | 31 | 41 | 0 | 67 | PM2.5 |
| September | 30 | 42 | 0 | 64 | O3 |
| October | 31 | 47 | 0 | 66 | O3 |
| November | 20 | 40 | 0 | 55 | PM2.5 |
| Decembercleanest | 22 | 33 | 0 | 61 | PM2.5 |
How 2024 compares
Among the 7 years EPA has published for the area (2019–2025), 2024 ranks 3rd cleanest by days above AQI 100.
2024's median of 42 is in line with the area's typical annual median of 42.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Flint
The latest EPA AirNow observation puts Flint's AQI at 20 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Flint air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Flint, 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.