Dallas Air Quality in 2020
In 2020, Dallas's air quality (Dallas-Fort Worth-Arlington, TX area) had a median daily AQI of 54 (Moderate) across 366 monitored days. 24 days (6.6%) reached Unhealthy for Sensitive Groups or worse, 135 were Good, and the year's peak AQI was 159 (Unhealthy). Fine particulate matter (PM2.5) set the daily AQI on 219 of those days. The cleanest month of 2020 was February (median AQI 46, 0 days above 100) and the worst was August (median 71, 10 days above 100, peak 159).
- Good: 36.9%
- Moderate: 56.6%
- Unhealthy for Sensitive Groups: 5.7%
- Unhealthy or worse: 0.8%
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How was Dallas's air quality in 2020?
Moderate on a typical day: median AQI 54, with 24 days above AQI 100 out of 366 monitored — the 1st cleanest of 7 years on record for the area.
- ✓Peak AQI in 2020: 159 (Unhealthy).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 219 days.
- ✓Cleanest month: February; worst: August.
Frequently asked questions
What was the average AQI in Dallas in 2020?▾
EPA's Air Quality System puts Dallas's (Dallas-Fort Worth-Arlington, TX) median daily AQI for 2020 at 54, which is Moderate. 24 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 159.
Which month had the worst air quality in Dallas in 2020?▾
The cleanest month of 2020 was February (median AQI 46, 0 days above 100) and the worst was August (median 71, 10 days above 100, peak 159).
Was 2020 a good or bad year for Dallas's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2020 ranks 1st cleanest by days above AQI 100 — the best year on record here. 2020's median of 54 is below the area's typical annual median of 58.
Dallas month by month in 2020
Dallas air quality month by month, 2020 (Dallas-Fort Worth-Arlington, TX, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 54 | 0 | 65 | PM2.5 |
| Februarycleanest | 29 | 46 | 0 | 62 | PM2.5 |
| March | 31 | 53 | 0 | 80 | PM2.5 |
| April | 30 | 57 | 0 | 97 | PM2.5 |
| May | 31 | 61 | 4 | 151 | O3 |
| June | 30 | 78 | 6 | 145 | O3 |
| July | 31 | 60 | 1 | 110 | PM2.5 |
| Augustworst | 31 | 71 | 10 | 159 | O3 |
| September | 30 | 54 | 0 | 97 | PM2.5 |
| October | 31 | 52 | 3 | 134 | PM2.5 |
| November | 30 | 54 | 0 | 65 | PM2.5 |
| December | 31 | 46 | 0 | 71 | PM2.5 |
How 2020 compares
Among the 7 years EPA has published for the area (2019–2025), 2020 ranks 1st cleanest by days above AQI 100 — the best year on record here.
2020's median of 54 is below the area's typical annual median of 58.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Dallas
The latest EPA AirNow observation puts Dallas's AQI at 42 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Dallas air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Dallas-Fort Worth-Arlington, 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.