Burlington Air Quality in February
Across 2019–2025, Burlington's February air quality had a median AQI of 42 (Good) over 198 monitored days in the Burlington-South Burlington, VT area. 0.0% of February days (0 of 198) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 63.1% of days. The cleanest February on record here was 2025 (median AQI 40, 0 days above 100) and the worst was 2020 (median 47, 0 days above 100, peak AQI 98).
- Good: 78.3%
- Moderate: 21.7%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
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How is the air in Burlington in February?
Good on a typical day: median AQI 42 across 2019–2025, with 0.0% of February days above AQI 100. Ground-level ozone is the main driver.
- ✓78.3% of February days were Good (AQI 0–50), 21.7% Moderate (51–100).
- ✓0 days of 198 reached AQI 101+; the February peak was 98.
- ✓Best February: 2025; worst February: 2020.
Frequently asked questions
What is the air quality like in Burlington in February?▾
Across 2019–2025, the median daily AQI in Burlington in February was 42 (Good). 78.3% of days were Good, 21.7% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 198 monitored days in EPA's Air Quality System.
Is February a good time for outdoor exercise in Burlington?▾
A typical February day in Burlington sits in the Good range (median AQI 42), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of February days reached AQI 101+ in 2019–2025.
Which pollutant causes Burlington's February air quality problems?▾
Ground-level ozone set the daily AQI on 63.1% of February days in Burlington. The highest February AQI recorded in 2019–2025 was 98 (Moderate), in 2020.
Burlington February air quality, year by year
Burlington February air quality by year (Burlington-South Burlington, VT, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 28 | 41 | 0 | 82 | O3 |
| 2020worst | 29 | 47 | 0 | 98 | PM2.5 |
| 2021 | 28 | 43 | 0 | 68 | O3 |
| 2022 | 28 | 44 | 0 | 71 | O3 |
| 2023 | 28 | 43 | 0 | 57 | PM2.5 |
| 2024 | 29 | 42 | 0 | 58 | O3 |
| 2025cleanest | 28 | 40 | 0 | 49 | O3 |
What February air means in Burlington
A typical February day in Burlington sits in the Good range (median AQI 42), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of February days reached AQI 101+ in 2019–2025.
February's median AQI of 42 is in line with Burlington's whole-year median of 39, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median February AQI across every EPA metro area (87,428 metro-days, 2019–2025) is 41, so Burlington runs in line with the national February norm; 0.0% of its February days topped AQI 100 versus 0.4% nationally (about the same).
February is part of Burlington's winter season (December, January, February); the winter page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Burlington
The latest EPA AirNow observation puts Burlington's AQI at 27 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Burlington air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Burlington-South Burlington, VT), 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.