Birmingham Air Quality in April
Across 2019–2025, Birmingham's April air quality had a median AQI of 57 (Moderate) over 210 monitored days in the Birmingham-Hoover, AL area. 0.5% of April days (1 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 67.1% of days. The cleanest April on record here was 2022 (median AQI 55, 0 days above 100) and the worst was 2023 (median 57, 1 day above 100, peak AQI 101).
- Good: 25.2%
- Moderate: 74.3%
- Unhealthy for Sensitive Groups: 0.5%
- Unhealthy or worse: 0.0%
Extra Protection for Birmingham Homes
Air quality in Birmingham is moderate (AQI 53), 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.
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How is the air in Birmingham in April?
Moderate on a typical day: median AQI 57 across 2019–2025, with 0.5% of April days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓25.2% of April days were Good (AQI 0–50), 74.3% Moderate (51–100).
- ✓1 day of 210 reached AQI 101+; the April peak was 101.
- ✓Best April: 2022; worst April: 2023.
Frequently asked questions
What is the air quality like in Birmingham in April?▾
Across 2019–2025, the median daily AQI in Birmingham in April was 57 (Moderate). 25.2% of days were Good, 74.3% Moderate, and 0.5% 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 Birmingham?▾
A typical April day in Birmingham is Moderate (median AQI 57): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of April 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 Birmingham's April air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 67.1% of April days in Birmingham. The highest April AQI recorded in 2019–2025 was 101 (Unhealthy for Sensitive Groups), in 2023.
Birmingham April air quality, year by year
Birmingham April air quality by year (Birmingham-Hoover, AL, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 58 | 0 | 94 | PM2.5 |
| 2020 | 30 | 56 | 0 | 78 | PM2.5 |
| 2021 | 30 | 58 | 0 | 80 | PM2.5 |
| 2022cleanest | 30 | 55 | 0 | 93 | PM2.5 |
| 2023worst | 30 | 57 | 1 | 101 | PM2.5 |
| 2024 | 30 | 60 | 0 | 93 | PM2.5 |
| 2025 | 30 | 55 | 0 | 87 | PM2.5 |
What April air means in Birmingham
A typical April day in Birmingham is Moderate (median AQI 57): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of April days 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 57 is in line with Birmingham's whole-year median of 56, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median April AQI across every EPA metro area (100,677 metro-days, 2019–2025) is 44, so Birmingham runs above the national April norm; 0.5% of its April days topped AQI 100 versus 0.7% nationally (about the same).
April is part of Birmingham's spring season (March, April, May); the spring page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Birmingham
The latest EPA AirNow observation puts Birmingham's AQI at 53 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Birmingham air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Birmingham-Hoover, AL), 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.