Austin Air Quality in 2024
In 2024, Austin's air quality (Austin-Round Rock, TX area) had a median daily AQI of 52 (Moderate) across 366 monitored days. 7 days (1.9%) reached Unhealthy for Sensitive Groups or worse, 156 were Good, and the year's peak AQI was 141 (Unhealthy for Sensitive Groups). Fine particulate matter (PM2.5) set the daily AQI on 235 of those days. The cleanest month of 2024 was November (median AQI 42, 0 days above 100) and the worst was May (median 71, 4 days above 100, peak 141).
- Good: 42.6%
- Moderate: 55.5%
- Unhealthy for Sensitive Groups: 1.9%
- Unhealthy or worse: 0.0%
Extra Protection for Austin Homes
Air quality in Austin is moderate (AQI 53), 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
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How was Austin's air quality in 2024?
Moderate on a typical day: median AQI 52, with 7 days above AQI 100 out of 366 monitored — the 6th cleanest of 7 years on record for the area.
- ✓Peak AQI in 2024: 141 (Unhealthy for Sensitive Groups).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 235 days.
- ✓Cleanest month: November; worst: May.
Frequently asked questions
What was the average AQI in Austin in 2024?▾
EPA's Air Quality System puts Austin's (Austin-Round Rock, TX) median daily AQI for 2024 at 52, which is Moderate. 7 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 141.
Which month had the worst air quality in Austin in 2024?▾
The cleanest month of 2024 was November (median AQI 42, 0 days above 100) and the worst was May (median 71, 4 days above 100, peak 141).
Was 2024 a good or bad year for Austin's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2024 ranks 6th cleanest by days above AQI 100. 2024's median of 52 is in line with the area's typical annual median of 52.
Austin month by month in 2024
Austin air quality month by month, 2024 (Austin-Round Rock, TX, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 53 | 0 | 95 | PM2.5 |
| February | 29 | 52 | 0 | 82 | PM2.5 |
| March | 31 | 54 | 0 | 74 | PM2.5 |
| April | 30 | 62 | 0 | 98 | PM2.5 |
| Mayworst | 31 | 71 | 4 | 141 | PM2.5 |
| June | 30 | 55 | 0 | 97 | PM2.5 |
| July | 31 | 56 | 1 | 106 | PM2.5 |
| August | 31 | 52 | 1 | 122 | O3 |
| September | 30 | 48 | 0 | 84 | O3 |
| October | 31 | 50 | 1 | 136 | O3 |
| Novembercleanest | 30 | 42 | 0 | 64 | PM2.5 |
| December | 31 | 45 | 0 | 58 | PM2.5 |
How 2024 compares
Among the 7 years EPA has published for the area (2019–2025), 2024 ranks 6th cleanest by days above AQI 100.
2024's median of 52 is in line with the area's typical annual median of 52.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Austin
The latest EPA AirNow observation puts Austin's AQI at 53 (PM2.5). The figures above are multi-year annual 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.