Fort Worth Air Quality in March

Across 2019–2025, Fort Worth's March air quality had a median AQI of 54 (Moderate) over 217 monitored days in the Dallas-Fort Worth-Arlington, TX area. 2.8% of March days (6 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 64.1% of days. The cleanest March on record here was 2021 (median AQI 52, 0 days above 100) and the worst was 2025 (median 55, 3 days above 100, peak AQI 304).

54
Median AQI
Moderate
2.8%
Days above AQI 100
6 of 217 days
71
90th percentile AQI
worst 1 day in 10
304
Peak AQI
Hazardous
PM2.5
Main pollutant
64.1% of days
32.7%
Good days
71 of 217
  • Good: 32.7%
  • Moderate: 64.5%
  • Unhealthy for Sensitive Groups: 2.3%
  • Unhealthy or worse: 0.5%

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QUICK ANSWER

How is the air in Fort Worth in March?

Moderate on a typical day: median AQI 54 across 2019–2025, with 2.8% of March days above AQI 100. Fine particulate matter (PM2.5) is the main driver.

  • 32.7% of March days were Good (AQI 0–50), 64.5% Moderate (51–100).
  • 6 days of 217 reached AQI 101+; the March peak was 304.
  • Best March: 2021; worst March: 2025.

Frequently asked questions

What is the air quality like in Fort Worth in March?

Across 2019–2025, the median daily AQI in Fort Worth in March was 54 (Moderate). 32.7% of days were Good, 64.5% Moderate, and 2.8% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.

Is March a good time for outdoor exercise in Fort Worth?

A typical March day in Fort Worth is Moderate (median AQI 54): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 36 of March days (2.8%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.

Which pollutant causes Fort Worth's March air quality problems?

Fine particulate matter (PM2.5) set the daily AQI on 64.1% of March days in Fort Worth. The highest March AQI recorded in 2019–2025 was 304 (Hazardous), in 2025.

Fort Worth March air quality, year by year

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

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
20193155087PM2.5
20203153080PM2.5
2021cleanest3152074PM2.5
202231513122O3
20233155073PM2.5
20243154073PM2.5
2025worst31553304O3

What March air means in Fort Worth

A typical March day in Fort Worth is Moderate (median AQI 54): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 36 of March days (2.8%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.

March's median AQI of 54 is below Fort Worth's whole-year median of 58, making it one of the area's cleaner periods. Nationally, the median March AQI across every EPA metro area (102,455 metro-days, 2019–2025) is 42, so Fort Worth runs above the national March norm; 2.8% of its March days topped AQI 100 versus 0.4% nationally (above average).

March is part of Fort Worth's spring season (March, April, May); the spring page pools all three months.

Activity-specific thresholds: running, cycling, kids' sports.

Right now in Fort Worth

The latest EPA AirNow observation puts Fort Worth's AQI at 55 (PM2.5). The figures above are multi-year month statistics, not today's reading.

View current Fort Worth 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.