Dallas Air Quality in 2024

In 2024, Dallas's air quality (Dallas-Fort Worth-Arlington, TX area) had a median daily AQI of 59 (Moderate) across 366 monitored days. 54 days (14.8%) reached Unhealthy for Sensitive Groups or worse, 86 were Good, and the year's peak AQI was 203 (Very Unhealthy). Fine particulate matter (PM2.5) set the daily AQI on 207 of those days. The cleanest month of 2024 was February (median AQI 48, 0 days above 100) and the worst was August (median 101, 16 days above 100, peak 203).

59
Median AQI
Moderate
54
Days above AQI 100
14.8% of 366 days
115
90th percentile AQI
worst 1 day in 10
203
Peak AQI
Very Unhealthy
PM2.5
Main pollutant
207 of 366 days
86
Good days
23.5% of days
  • Good: 23.5%
  • Moderate: 61.7%
  • Unhealthy for Sensitive Groups: 12.0%
  • Unhealthy or worse: 2.7%

Extra Protection for Dallas Homes

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QUICK ANSWER

How was Dallas's air quality in 2024?

Moderate on a typical day: median AQI 59, with 54 days above AQI 100 out of 366 monitored — the 7th cleanest of 7 years on record for the area.

  • Peak AQI in 2024: 203 (Very Unhealthy).
  • Fine particulate matter (PM2.5) was the main pollutant on 207 days.
  • Cleanest month: February; worst: August.

Frequently asked questions

What was the average AQI in Dallas in 2024?

EPA's Air Quality System puts Dallas's (Dallas-Fort Worth-Arlington, TX) median daily AQI for 2024 at 59, which is Moderate. 54 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 203.

Which month had the worst air quality in Dallas in 2024?

The cleanest month of 2024 was February (median AQI 48, 0 days above 100) and the worst was August (median 101, 16 days above 100, peak 203).

Was 2024 a good or bad year for Dallas's air?

Among the 7 years EPA has published for the area (2019–2025), 2024 ranks 7th cleanest by days above AQI 100 — the worst year on record here. 2024's median of 59 is in line with the area's typical annual median of 58.

Dallas month by month in 2024

Dallas air quality month by month, 2024 (Dallas-Fort Worth-Arlington, TX, EPA AQS daily AQI)

MonthDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
January3155078PM2.5
Februarycleanest2948075PM2.5
March3154073PM2.5
April3060097PM2.5
May31806126PM2.5
June30698174O3
July31719156PM2.5
Augustworst3110116203O3
September30663156O3
October317712154O3
November3054069PM2.5
December3153075PM2.5

How 2024 compares

Among the 7 years EPA has published for the area (2019–2025), 2024 ranks 7th cleanest by days above AQI 100 — the worst year on record here.

2024's median of 59 is in line with 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 55 (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.