Austin Air Quality in June
Across 2019–2025, Austin's June air quality had a median AQI of 55 (Moderate) over 210 monitored days in the Austin-Round Rock, TX area. 1.9% of June days (4 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 72.4% of days. The cleanest June on record here was 2021 (median AQI 51, 0 days above 100) and the worst was 2022 (median 58, 2 days above 100, peak AQI 115).
- Good: 31.4%
- Moderate: 66.7%
- Unhealthy for Sensitive Groups: 1.4%
- Unhealthy or worse: 0.5%
Reduce Indoor Ozone in Austin
Today's main pollutant in Austin is ground-level ozone (AQI 33). Important: standard HEPA filters do NOT remove ozone — only a purifier with a substantial activated-carbon bed adsorbs it. The biggest wins are cutting indoor sources (gas appliances, certain "ionizer" purifiers) and ventilating when outdoor ozone is low (early morning). A high-carbon unit helps with the gases and VOCs that linger indoors.
Recommended: Levoit Core 300 — True HEPA + activated carbon · CADR ~141 CFM · rooms up to 219 sq ft
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How is the air in Austin in June?
Moderate on a typical day: median AQI 55 across 2019–2025, with 1.9% of June days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓31.4% of June days were Good (AQI 0–50), 66.7% Moderate (51–100).
- ✓4 days of 210 reached AQI 101+; the June peak was 154.
- ✓Best June: 2021; worst June: 2022.
Frequently asked questions
What is the air quality like in Austin in June?▾
Across 2019–2025, the median daily AQI in Austin in June was 55 (Moderate). 31.4% of days were Good, 66.7% Moderate, and 1.9% 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 Austin?▾
A typical June day in Austin is Moderate (median AQI 55): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 53 of June days (1.9%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Austin's June air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 72.4% of June days in Austin. The highest June AQI recorded in 2019–2025 was 154 (Unhealthy), in 2022.
Austin June air quality, year by year
Austin June air quality by year (Austin-Round Rock, TX, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 52 | 0 | 84 | PM2.5 |
| 2020 | 30 | 53 | 1 | 154 | PM2.5 |
| 2021cleanest | 30 | 51 | 0 | 84 | PM2.5 |
| 2022worst | 30 | 58 | 2 | 115 | PM2.5 |
| 2023 | 30 | 67 | 1 | 112 | PM2.5 |
| 2024 | 30 | 55 | 0 | 97 | PM2.5 |
| 2025 | 30 | 57 | 0 | 75 | PM2.5 |
What June air means in Austin
A typical June day in Austin is Moderate (median AQI 55): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 53 of June days (1.9%) 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 55 is in line with Austin's whole-year median of 52, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median June AQI across every EPA metro area (100,635 metro-days, 2019–2025) is 46, so Austin runs above the national June norm; 1.9% of its June days topped AQI 100 versus 3.7% nationally (below average).
June is part of Austin's summer season (June, July, August); the summer page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Austin
The latest EPA AirNow observation puts Austin's AQI at 33 (O3). The figures above are multi-year month statistics, not today's reading.
View current Austin air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Austin-Round Rock, TX), 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.