Indianapolis Air Quality in June
Across 2019–2025, Indianapolis's June air quality had a median AQI of 64 (Moderate) over 210 monitored days in the Indianapolis-Carmel-Anderson, IN area. 10.4% of June days (22 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 54.3% of days. The cleanest June on record here was 2021 (median AQI 60, 0 days above 100) and the worst was 2023 (median 90, 10 days above 100, peak AQI 259).
- Good: 16.7%
- Moderate: 72.9%
- Unhealthy for Sensitive Groups: 9.0%
- Unhealthy or worse: 1.4%
Extra Protection for Indianapolis Homes
Air quality in Indianapolis is moderate (AQI 55), 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
As an Amazon Associate, we earn from qualifying purchases.
How is the air in Indianapolis in June?
Moderate on a typical day: median AQI 64 across 2019–2025, with 10.4% of June days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓16.7% of June days were Good (AQI 0–50), 72.9% Moderate (51–100).
- ✓22 days of 210 reached AQI 101+; the June peak was 259.
- ✓Best June: 2021; worst June: 2023.
Frequently asked questions
What is the air quality like in Indianapolis in June?▾
Across 2019–2025, the median daily AQI in Indianapolis in June was 64 (Moderate). 16.7% of days were Good, 72.9% Moderate, and 10.4% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is June a good time for outdoor exercise in Indianapolis?▾
A typical June day in Indianapolis is Moderate (median AQI 64): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 10 of June days (10.4%) 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 June air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 54.3% of June days in Indianapolis. The highest June AQI recorded in 2019–2025 was 259 (Very Unhealthy), in 2023.
Indianapolis June air quality, year by year
Indianapolis June 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 | 1 | 105 | PM2.5 |
| 2020 | 30 | 61 | 2 | 115 | O3 |
| 2021cleanest | 30 | 60 | 0 | 100 | PM2.5 |
| 2022 | 30 | 73 | 7 | 133 | O3 |
| 2023worst | 30 | 90 | 10 | 259 | PM2.5 |
| 2024 | 30 | 57 | 1 | 108 | O3 |
| 2025 | 30 | 59 | 1 | 108 | PM2.5 |
What June air means in Indianapolis
A typical June day in Indianapolis is Moderate (median AQI 64): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 10 of June days (10.4%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
June's median AQI of 64 is above Indianapolis's whole-year median of 56, making it one of the area's dirtier periods. Nationally, the median June AQI across every EPA metro area (100,635 metro-days, 2019–2025) is 46, so Indianapolis runs above the national June norm; 10.4% of its June days topped AQI 100 versus 3.7% nationally (above average).
June is part of Indianapolis's summer season (June, July, August); the summer 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 55 (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.