Flint Air Quality in August
Across 2019–2025, Flint's August air quality had a median AQI of 39 (Good) over 216 monitored days in the Flint, MI area. 0.0% of August days (0 of 216) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 64.4% of days. The cleanest August on record here was 2025 (median AQI 32, 0 days above 100) and the worst was 2021 (median 47, 0 days above 100, peak AQI 70).
- Good: 76.9%
- Moderate: 23.1%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
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How is the air in Flint in August?
Good on a typical day: median AQI 39 across 2019–2025, with 0.0% of August days above AQI 100. Ground-level ozone is the main driver.
- ✓76.9% of August days were Good (AQI 0–50), 23.1% Moderate (51–100).
- ✓0 days of 216 reached AQI 101+; the August peak was 97.
- ✓Best August: 2025; worst August: 2021.
Frequently asked questions
What is the air quality like in Flint in August?▾
Across 2019–2025, the median daily AQI in Flint in August was 39 (Good). 76.9% of days were Good, 23.1% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 216 monitored days in EPA's Air Quality System.
Is August a good time for outdoor exercise in Flint?▾
A typical August day in Flint sits in the Good range (median AQI 39), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of August days reached AQI 101+ in 2019–2025.
Which pollutant causes Flint's August air quality problems?▾
Ground-level ozone set the daily AQI on 64.4% of August days in Flint. The highest August AQI recorded in 2019–2025 was 97 (Moderate), in 2021.
Flint August air quality, year by year
Flint August air quality by year (Flint, MI, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 31 | 37 | 0 | 60 | O3 |
| 2020 | 31 | 42 | 0 | 97 | O3 |
| 2021worst | 31 | 47 | 0 | 70 | PM2.5 |
| 2022 | 31 | 38 | 0 | 53 | O3 |
| 2023 | 31 | 38 | 0 | 71 | O3 |
| 2024 | 31 | 41 | 0 | 67 | PM2.5 |
| 2025cleanest | 30 | 32 | 0 | 61 | O3 |
What August air means in Flint
A typical August day in Flint sits in the Good range (median AQI 39), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of August days reached AQI 101+ in 2019–2025.
August's median AQI of 39 is in line with Flint's whole-year median of 42, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median August AQI across every EPA metro area (104,152 metro-days, 2019–2025) is 45, so Flint runs below the national August norm; 0.0% of its August days topped AQI 100 versus 3.5% nationally (below average).
August is part of Flint's summer season (June, July, August); the summer page pools all three months.
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 month 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.