Nashville Air Quality in April
Across 2019–2025, Nashville's April air quality had a median AQI of 52 (Moderate) over 210 monitored days in the Nashville-Davidson--Murfreesboro--Franklin, TN 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 51.9% of days. The cleanest April on record here was 2022 (median AQI 49, 0 days above 100) and the worst was 2023 (median 53, 1 day above 100, peak AQI 101).
- Good: 41.0%
- Moderate: 58.6%
- Unhealthy for Sensitive Groups: 0.5%
- Unhealthy or worse: 0.0%
Reduce Indoor Ozone in Nashville
Today's main pollutant in Nashville is ground-level ozone (AQI 64). 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 Nashville in April?
Moderate on a typical day: median AQI 52 across 2019–2025, with 0.5% of April days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓41.0% of April days were Good (AQI 0–50), 58.6% 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 Nashville in April?▾
Across 2019–2025, the median daily AQI in Nashville in April was 52 (Moderate). 41.0% of days were Good, 58.6% 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 Nashville?▾
A typical April day in Nashville is Moderate (median AQI 52): 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 Nashville's April air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 51.9% of April days in Nashville. The highest April AQI recorded in 2019–2025 was 101 (Unhealthy for Sensitive Groups), in 2023.
Nashville April air quality, year by year
Nashville April air quality by year (Nashville-Davidson--Murfreesboro--Franklin, TN, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 52 | 0 | 64 | O3 |
| 2020 | 30 | 50 | 0 | 62 | O3 |
| 2021 | 30 | 57 | 0 | 83 | PM2.5 |
| 2022cleanest | 30 | 49 | 0 | 74 | O3 |
| 2023worst | 30 | 53 | 1 | 101 | O3 |
| 2024 | 30 | 53 | 0 | 62 | PM2.5 |
| 2025 | 30 | 52 | 0 | 74 | PM2.5 |
What April air means in Nashville
A typical April day in Nashville is Moderate (median AQI 52): 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 52 is in line with Nashville's whole-year median of 52, 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 Nashville 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 Nashville's spring season (March, April, May); the spring page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Nashville
The latest EPA AirNow observation puts Nashville's AQI at 64 (O3). The figures above are multi-year month statistics, not today's reading.
View current Nashville air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Nashville-Davidson--Murfreesboro--Franklin, TN), 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.