Flint Air Quality in Spring
Across 2019–2025, Flint's spring (March–May) air quality had a median AQI of 41 (Good) over 644 monitored days in the Flint, MI area. 0.8% of spring days (5 of 644) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 73.4% of days. The cleanest spring on record here was 2020 (median AQI 40, 0 days above 100) and the worst was 2023 (median 45, 2 days above 100, peak AQI 105).
- Good: 75.0%
- Moderate: 24.2%
- Unhealthy for Sensitive Groups: 0.8%
- Unhealthy or worse: 0.0%
Improve Indoor Air Quality
Even with good outdoor air in Flint, indoor PM2.5, dust and allergens build up. A True-HEPA purifier keeps a bedroom or office consistently clean.
Recommended: Levoit Core 400S — True HEPA · CADR ~141 CFM · rooms up to 219 sq ft
As an Amazon Associate, we earn from qualifying purchases.
How is the air in Flint in spring?
Good on a typical day: median AQI 41 across 2019–2025, with 0.8% of spring days above AQI 100. Ground-level ozone is the main driver.
- ✓75.0% of spring days were Good (AQI 0–50), 24.2% Moderate (51–100).
- ✓5 days of 644 reached AQI 101+; the spring peak was 119.
- ✓Cleanest month: March; worst month: May.
Frequently asked questions
What is the air quality like in Flint in spring?▾
Across 2019–2025, the median daily AQI in Flint in spring was 41 (Good). 75.0% of days were Good, 24.2% Moderate, and 0.8% reached Unhealthy for Sensitive Groups or worse, based on 644 monitored days in EPA's Air Quality System.
Is spring a good time for outdoor exercise in Flint?▾
A typical spring day in Flint sits in the Good range (median AQI 41), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of spring days reached AQI 101+ in 2019–2025.
Which pollutant causes Flint's spring air quality problems?▾
Ground-level ozone set the daily AQI on 73.4% of spring days in Flint. The highest spring AQI recorded in 2019–2025 was 119 (Unhealthy for Sensitive Groups), in 2023.
Flint spring air quality, year by year
Flint spring air quality by year (Flint, MI, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 92 | 43 | 0 | 72 | O3 |
| 2020cleanest | 92 | 40 | 0 | 61 | O3 |
| 2021 | 92 | 42 | 1 | 119 | O3 |
| 2022 | 92 | 41 | 1 | 108 | O3 |
| 2023worst | 92 | 45 | 2 | 105 | O3 |
| 2024 | 92 | 41 | 0 | 87 | O3 |
| 2025 | 92 | 39 | 1 | 105 | O3 |
What spring air means in Flint
A typical spring day in Flint sits in the Good range (median AQI 41), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of spring days reached AQI 101+ in 2019–2025.
Spring's median AQI of 41 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 Spring AQI across every EPA metro area (307,196 metro-days, 2019–2025) is 43, so Flint runs in line with the national Spring norm; 0.8% of its Spring days topped AQI 100 versus 0.8% nationally (about the same).
Within the season, March is the cleanest month (median AQI 41, 0.0% of days above 100) and May the worst (median 43, 1.8% above 100).
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 season 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.