Brownsville Air Quality in June
Across 2019–2025, Brownsville's June air quality had a median AQI of 58 (Moderate) over 210 monitored days in the Brownsville-Harlingen, TX area. 7.1% of June days (15 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 92.4% of days. The cleanest June on record here was 2021 (median AQI 53, 0 days above 100) and the worst was 2024 (median 65, 8 days above 100, peak AQI 157).
- Good: 30.0%
- Moderate: 62.9%
- Unhealthy for Sensitive Groups: 5.2%
- Unhealthy or worse: 1.9%
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How is the air in Brownsville in June?
Moderate on a typical day: median AQI 58 across 2019–2025, with 7.1% of June days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓30.0% of June days were Good (AQI 0–50), 62.9% Moderate (51–100).
- ✓15 days of 210 reached AQI 101+; the June peak was 184.
- ✓Best June: 2021; worst June: 2024.
Frequently asked questions
What is the air quality like in Brownsville in June?▾
Across 2019–2025, the median daily AQI in Brownsville in June was 58 (Moderate). 30.0% of days were Good, 62.9% Moderate, and 7.1% 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 Brownsville?▾
A typical June day in Brownsville is Moderate (median AQI 58): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 14 of June days (7.1%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Brownsville's June air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 92.4% of June days in Brownsville. The highest June AQI recorded in 2019–2025 was 184 (Unhealthy), in 2024.
Brownsville June air quality, year by year
Brownsville June air quality by year (Brownsville-Harlingen, TX, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 63 | 0 | 87 | PM2.5 |
| 2020 | 30 | 53 | 3 | 184 | PM2.5 |
| 2021cleanest | 30 | 53 | 0 | 84 | PM2.5 |
| 2022 | 30 | 56 | 3 | 120 | PM2.5 |
| 2023 | 30 | 58 | 1 | 104 | PM2.5 |
| 2024worst | 30 | 65 | 8 | 157 | PM2.5 |
| 2025 | 30 | 61 | 0 | 77 | PM2.5 |
What June air means in Brownsville
A typical June day in Brownsville is Moderate (median AQI 58): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 14 of June days (7.1%) 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 58 is above Brownsville's whole-year median of 52, making it one of the area's dirtier periods. Nationally, the median June AQI across every EPA metro area (100,635 metro-days, 2019–2025) is 46, so Brownsville runs above the national June norm; 7.1% of its June days topped AQI 100 versus 3.7% nationally (above average).
June is part of Brownsville's summer season (June, July, August); the summer page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Brownsville
The latest EPA AirNow observation puts Brownsville's AQI at 43 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Brownsville air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Brownsville-Harlingen, 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.