El Paso Air Quality in September
Across 2019–2025, El Paso's September air quality had a median AQI of 61 (Moderate) over 210 monitored days in the El Paso, TX area. 2.9% of September days (6 of 210) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 48.1% of days. The cleanest September on record here was 2019 (median AQI 46, 0 days above 100) and the worst was 2021 (median 61, 3 days above 100, peak AQI 104).
- Good: 27.6%
- Moderate: 69.5%
- Unhealthy for Sensitive Groups: 2.9%
- Unhealthy or worse: 0.0%
Extra Protection for El Paso Homes
Air quality in El Paso is moderate (AQI 54), 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 is the air in El Paso in September?
Moderate on a typical day: median AQI 61 across 2019–2025, with 2.9% of September days above AQI 100. Ground-level ozone is the main driver.
- ✓27.6% of September days were Good (AQI 0–50), 69.5% Moderate (51–100).
- ✓6 days of 210 reached AQI 101+; the September peak was 126.
- ✓Best September: 2019; worst September: 2021.
Frequently asked questions
What is the air quality like in El Paso in September?▾
Across 2019–2025, the median daily AQI in El Paso in September was 61 (Moderate). 27.6% of days were Good, 69.5% Moderate, and 2.9% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is September a good time for outdoor exercise in El Paso?▾
A typical September day in El Paso is Moderate (median AQI 61): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 34 of September days (2.9%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes El Paso's September air quality problems?▾
Ground-level ozone set the daily AQI on 48.1% of September days in El Paso. The highest September AQI recorded in 2019–2025 was 126 (Unhealthy for Sensitive Groups), in 2021.
El Paso September air quality, year by year
El Paso September air quality by year (El Paso, TX, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 30 | 46 | 0 | 64 | O3 |
| 2020 | 30 | 61 | 0 | 100 | PM2.5 |
| 2021worst | 30 | 61 | 3 | 104 | O3 |
| 2022 | 30 | 61 | 1 | 126 | PM2.5 |
| 2023 | 30 | 71 | 0 | 93 | PM2.5 |
| 2024 | 30 | 62 | 2 | 112 | O3 |
| 2025 | 30 | 53 | 0 | 96 | O3 |
What September air means in El Paso
A typical September day in El Paso is Moderate (median AQI 61): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 34 of September days (2.9%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
September's median AQI of 61 is in line with El Paso's whole-year median of 59, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median September AQI across every EPA metro area (100,699 metro-days, 2019–2025) is 43, so El Paso runs above the national September norm; 2.9% of its September days topped AQI 100 versus 2.7% nationally (about the same).
September is part of El Paso's fall season (September, October, November); the fall page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in El Paso
The latest EPA AirNow observation puts El Paso's AQI at 54 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current El Paso air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (El Paso, 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.