Laredo Air Quality in July
Across 2019–2025, Laredo's July air quality had a median AQI of 53 (Moderate) over 213 monitored days in the Laredo, TX area. 0.5% of July days (1 of 213) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 77.9% of days. The cleanest July on record here was 2023 (median AQI 41, 0 days above 100) and the worst was 2024 (median 56, 1 day above 100, peak AQI 103).
- Good: 44.1%
- Moderate: 55.4%
- Unhealthy for Sensitive Groups: 0.5%
- 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 July?
Moderate on a typical day: median AQI 53 across 2019–2025, with 0.5% of July days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓44.1% of July days were Good (AQI 0–50), 55.4% Moderate (51–100).
- ✓1 day of 213 reached AQI 101+; the July peak was 103.
- ✓Best July: 2023; worst July: 2024.
Frequently asked questions
What is the air quality like in Laredo in July?▾
Across 2019–2025, the median daily AQI in Laredo in July was 53 (Moderate). 44.1% of days were Good, 55.4% Moderate, and 0.5% reached Unhealthy for Sensitive Groups or worse, based on 213 monitored days in EPA's Air Quality System.
Is July a good time for outdoor exercise in Laredo?▾
A typical July day in Laredo is Moderate (median AQI 53): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of July days reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Laredo's July air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 77.9% of July days in Laredo. The highest July AQI recorded in 2019–2025 was 103 (Unhealthy for Sensitive Groups), in 2024.
Laredo July air quality, year by year
Laredo July air quality by year (Laredo, TX, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 31 | 56 | 0 | 80 | PM2.5 |
| 2020 | 31 | 60 | 0 | 95 | PM2.5 |
| 2021 | 31 | 55 | 0 | 87 | PM2.5 |
| 2022 | 27 | 54 | 0 | 92 | PM2.5 |
| 2023cleanest | 31 | 41 | 0 | 82 | PM2.5 |
| 2024worst | 31 | 56 | 1 | 103 | PM2.5 |
| 2025 | 31 | 44 | 0 | 73 | PM2.5 |
What July air means in Laredo
A typical July day in Laredo is Moderate (median AQI 53): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of July days reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
July's median AQI of 53 is above Laredo's whole-year median of 47, making it one of the area's dirtier periods. Nationally, the median July AQI across every EPA metro area (103,858 metro-days, 2019–2025) is 47, so Laredo runs above the national July norm; 0.5% of its July days topped AQI 100 versus 3.6% nationally (below average).
July is part of Laredo's summer season (June, July, August); the summer 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.