Laredo Air Quality in October
Across 2019–2025, Laredo's October air quality had a median AQI of 42 (Good) over 217 monitored days in the Laredo, TX area. 0.9% of October days (2 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 61.3% of days. The cleanest October on record here was 2022 (median AQI 37, 0 days above 100) and the worst was 2024 (median 42, 1 day above 100, peak AQI 101).
- Good: 73.7%
- Moderate: 25.3%
- Unhealthy for Sensitive Groups: 0.9%
- Unhealthy or worse: 0.0%
Reduce Indoor Ozone in Laredo
Today's main pollutant in Laredo is ground-level ozone (AQI 13). Important: standard HEPA filters do NOT remove ozone — only a purifier with a substantial activated-carbon bed adsorbs it. The biggest wins are cutting indoor sources (gas appliances, certain "ionizer" purifiers) and ventilating when outdoor ozone is low (early morning). A high-carbon unit helps with the gases and VOCs that linger indoors.
Recommended: Levoit Core 300 — True HEPA + activated carbon · CADR ~141 CFM · rooms up to 219 sq ft
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How is the air in Laredo in October?
Good on a typical day: median AQI 42 across 2019–2025, with 0.9% of October days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓73.7% of October days were Good (AQI 0–50), 25.3% Moderate (51–100).
- ✓2 days of 217 reached AQI 101+; the October peak was 105.
- ✓Best October: 2022; worst October: 2024.
Frequently asked questions
What is the air quality like in Laredo in October?▾
Across 2019–2025, the median daily AQI in Laredo in October was 42 (Good). 73.7% of days were Good, 25.3% Moderate, and 0.9% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.
Is October a good time for outdoor exercise in Laredo?▾
A typical October day in Laredo sits in the Good range (median AQI 42), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of October days reached AQI 101+ in 2019–2025.
Which pollutant causes Laredo's October air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 61.3% of October days in Laredo. The highest October AQI recorded in 2019–2025 was 105 (Unhealthy for Sensitive Groups), in 2024.
Laredo October air quality, year by year
Laredo October air quality by year (Laredo, TX, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 31 | 41 | 0 | 56 | PM2.5 |
| 2020 | 31 | 44 | 0 | 74 | PM2.5 |
| 2021 | 31 | 44 | 0 | 69 | PM2.5 |
| 2022cleanest | 31 | 37 | 0 | 62 | PM2.5 |
| 2023 | 31 | 35 | 1 | 105 | O3 |
| 2024worst | 31 | 42 | 1 | 101 | O3 |
| 2025 | 31 | 53 | 0 | 82 | PM2.5 |
What October air means in Laredo
A typical October day in Laredo sits in the Good range (median AQI 42), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of October days reached AQI 101+ in 2019–2025.
October's median AQI of 42 is below Laredo's whole-year median of 47, making it one of the area's cleaner periods. Nationally, the median October AQI across every EPA metro area (102,872 metro-days, 2019–2025) is 38, so Laredo runs above the national October norm; 0.9% of its October days topped AQI 100 versus 1.3% nationally (about the same).
October is part of Laredo's fall season (September, October, November); the fall page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Laredo
The latest EPA AirNow observation puts Laredo's AQI at 13 (O3). The figures above are multi-year month statistics, not today's reading.
View current Laredo air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Laredo, 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.