McAllen Air Quality in April
Across 2019–2025, McAllen's April air quality had a median AQI of 59 (Moderate) over 210 monitored days in the McAllen-Edinburg-Mission, TX area. 3.3% of April days (7 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 81.0% of days. The cleanest April on record here was 2023 (median AQI 51, 0 days above 100) and the worst was 2020 (median 65, 3 days above 100, peak AQI 126).
- Good: 30.5%
- Moderate: 66.2%
- Unhealthy for Sensitive Groups: 3.3%
- Unhealthy or worse: 0.0%
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How is the air in McAllen in April?
Moderate on a typical day: median AQI 59 across 2019–2025, with 3.3% of April days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓30.5% of April days were Good (AQI 0–50), 66.2% Moderate (51–100).
- ✓7 days of 210 reached AQI 101+; the April peak was 136.
- ✓Best April: 2023; worst April: 2020.
Frequently asked questions
What is the air quality like in McAllen in April?▾
Across 2019–2025, the median daily AQI in McAllen in April was 59 (Moderate). 30.5% of days were Good, 66.2% Moderate, and 3.3% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is April a good time for outdoor exercise in McAllen?▾
A typical April day in McAllen is Moderate (median AQI 59): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 30 of April days (3.3%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes McAllen's April air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 81.0% of April days in McAllen. The highest April AQI recorded in 2019–2025 was 136 (Unhealthy for Sensitive Groups), in 2020.
McAllen April air quality, year by year
McAllen April air quality by year (McAllen-Edinburg-Mission, TX, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 52 | 0 | 92 | PM2.5 |
| 2020worst | 30 | 65 | 3 | 126 | PM2.5 |
| 2021 | 30 | 72 | 0 | 96 | PM2.5 |
| 2022 | 30 | 57 | 1 | 136 | PM2.5 |
| 2023cleanest | 30 | 51 | 0 | 78 | PM2.5 |
| 2024 | 30 | 71 | 2 | 105 | PM2.5 |
| 2025 | 30 | 59 | 1 | 101 | PM2.5 |
What April air means in McAllen
A typical April day in McAllen is Moderate (median AQI 59): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 30 of April days (3.3%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
April's median AQI of 59 is above McAllen's whole-year median of 50, making it one of the area's dirtier periods. Nationally, the median April AQI across every EPA metro area (100,677 metro-days, 2019–2025) is 44, so McAllen runs above the national April norm; 3.3% of its April days topped AQI 100 versus 0.7% nationally (above average).
April is part of McAllen's spring season (March, April, May); the spring page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in McAllen
The latest EPA AirNow observation puts McAllen's AQI at 47 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current McAllen air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (McAllen-Edinburg-Mission, 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.