Indianapolis Air Quality in November
Across 2019–2025, Indianapolis's November air quality had a median AQI of 58 (Moderate) over 210 monitored days in the Indianapolis-Carmel-Anderson, IN area. 6.7% of November days (14 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 96.2% of days. The cleanest November on record here was 2024 (median AQI 56, 0 days above 100) and the worst was 2022 (median 64, 5 days above 100, peak AQI 154).
- Good: 27.1%
- Moderate: 66.2%
- Unhealthy for Sensitive Groups: 6.2%
- Unhealthy or worse: 0.5%
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How is the air in Indianapolis in November?
Moderate on a typical day: median AQI 58 across 2019–2025, with 6.7% of November days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓27.1% of November days were Good (AQI 0–50), 66.2% Moderate (51–100).
- ✓14 days of 210 reached AQI 101+; the November peak was 154.
- ✓Best November: 2024; worst November: 2022.
Frequently asked questions
What is the air quality like in Indianapolis in November?▾
Across 2019–2025, the median daily AQI in Indianapolis in November was 58 (Moderate). 27.1% of days were Good, 66.2% Moderate, and 6.7% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is November a good time for outdoor exercise in Indianapolis?▾
A typical November day in Indianapolis is Moderate (median AQI 58): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 15 of November days (6.7%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Indianapolis's November air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 96.2% of November days in Indianapolis. The highest November AQI recorded in 2019–2025 was 154 (Unhealthy), in 2022.
Indianapolis November air quality, year by year
Indianapolis November air quality by year (Indianapolis-Carmel-Anderson, IN, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 59 | 0 | 79 | PM2.5 |
| 2020 | 30 | 56 | 2 | 144 | PM2.5 |
| 2021 | 30 | 54 | 3 | 111 | PM2.5 |
| 2022worst | 30 | 64 | 5 | 154 | PM2.5 |
| 2023 | 30 | 61 | 3 | 138 | PM2.5 |
| 2024cleanest | 30 | 56 | 0 | 69 | PM2.5 |
| 2025 | 30 | 58 | 1 | 117 | PM2.5 |
What November air means in Indianapolis
A typical November day in Indianapolis is Moderate (median AQI 58): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 15 of November days (6.7%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
November's median AQI of 58 is in line with Indianapolis's whole-year median of 56, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median November AQI across every EPA metro area (92,704 metro-days, 2019–2025) is 39, so Indianapolis runs above the national November norm; 6.7% of its November days topped AQI 100 versus 0.6% nationally (above average).
November is part of Indianapolis's fall season (September, October, November); the fall page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Indianapolis
The latest EPA AirNow observation puts Indianapolis's AQI at 47 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Indianapolis air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Indianapolis-Carmel-Anderson, IN), 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.