Laredo Air Quality in January
Across 2019–2025, Laredo's January air quality had a median AQI of 39 (Good) over 217 monitored days in the Laredo, TX area. 0.0% of January days (0 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 January on record here was 2025 (median AQI 35, 0 days above 100) and the worst was 2022 (median 44, 0 days above 100, peak AQI 64).
- Good: 78.8%
- Moderate: 21.2%
- Unhealthy for Sensitive Groups: 0.0%
- 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.
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How is the air in Laredo in January?
Good on a typical day: median AQI 39 across 2019–2025, with 0.0% of January days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓78.8% of January days were Good (AQI 0–50), 21.2% Moderate (51–100).
- ✓0 days of 217 reached AQI 101+; the January peak was 86.
- ✓Best January: 2025; worst January: 2022.
Frequently asked questions
What is the air quality like in Laredo in January?▾
Across 2019–2025, the median daily AQI in Laredo in January was 39 (Good). 78.8% of days were Good, 21.2% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.
Is January a good time for outdoor exercise in Laredo?▾
A typical January day in Laredo sits in the Good range (median AQI 39), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of January days reached AQI 101+ in 2019–2025.
Which pollutant causes Laredo's January air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 61.3% of January days in Laredo. The highest January AQI recorded in 2019–2025 was 86 (Moderate), in 2022.
Laredo January air quality, year by year
Laredo January air quality by year (Laredo, TX, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 31 | 37 | 0 | 61 | PM2.5 |
| 2020 | 31 | 36 | 0 | 58 | PM2.5 |
| 2021 | 31 | 39 | 0 | 71 | PM2.5 |
| 2022worst | 31 | 44 | 0 | 64 | PM2.5 |
| 2023 | 31 | 41 | 0 | 86 | O3 |
| 2024 | 31 | 41 | 0 | 66 | PM2.5 |
| 2025cleanest | 31 | 35 | 0 | 51 | O3 |
What January air means in Laredo
A typical January day in Laredo sits in the Good range (median AQI 39), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of January days reached AQI 101+ in 2019–2025.
January's median AQI of 39 is below Laredo's whole-year median of 47, making it one of the area's cleaner periods. Nationally, the median January AQI across every EPA metro area (95,602 metro-days, 2019–2025) is 39, so Laredo runs in line with the national January norm; 0.0% of its January days topped AQI 100 versus 0.7% nationally (about the same).
January is part of Laredo's winter season (December, January, February); the winter 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.