Trenton Air Quality in February
Across 2019–2025, Trenton's February air quality had a median AQI of 41 (Good) over 198 monitored days in the Trenton, NJ area. 0.0% of February days (0 of 198) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 62.1% of days. The cleanest February on record here was 2024 (median AQI 37, 0 days above 100) and the worst was 2023 (median 52, 0 days above 100, peak AQI 61).
- Good: 64.6%
- Moderate: 35.4%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
Extra Protection for Trenton Homes
Air quality in Trenton is moderate (AQI 52), 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.
Recommended: Coway AP-1512HH Mighty — True HEPA + carbon · CADR ~246 CFM · rooms up to 361 sq ft
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How is the air in Trenton in February?
Good on a typical day: median AQI 41 across 2019–2025, with 0.0% of February days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓64.6% of February days were Good (AQI 0–50), 35.4% Moderate (51–100).
- ✓0 days of 198 reached AQI 101+; the February peak was 94.
- ✓Best February: 2024; worst February: 2023.
Frequently asked questions
What is the air quality like in Trenton in February?▾
Across 2019–2025, the median daily AQI in Trenton in February was 41 (Good). 64.6% of days were Good, 35.4% 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 Trenton?▾
A typical February day in Trenton sits in the Good range (median AQI 41), 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 Trenton's February air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 62.1% of February days in Trenton. The highest February AQI recorded in 2019–2025 was 94 (Moderate), in 2023.
Trenton February air quality, year by year
Trenton February air quality by year (Trenton, NJ, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 28 | 40 | 0 | 94 | PM2.5 |
| 2020 | 29 | 44 | 0 | 63 | PM2.5 |
| 2021 | 28 | 43 | 0 | 61 | PM2.5 |
| 2022 | 28 | 43 | 0 | 68 | PM2.5 |
| 2023worst | 28 | 52 | 0 | 61 | PM2.5 |
| 2024cleanest | 29 | 37 | 0 | 77 | O3 |
| 2025 | 28 | 39 | 0 | 62 | O3 |
What February air means in Trenton
A typical February day in Trenton sits in the Good range (median AQI 41), 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 41 is below Trenton's whole-year median of 45, making it one of the area's cleaner periods. Nationally, the median February AQI across every EPA metro area (87,428 metro-days, 2019–2025) is 41, so Trenton 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 Trenton's winter season (December, January, February); the winter page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Trenton
The latest EPA AirNow observation puts Trenton's AQI at 52 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Trenton air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Trenton, NJ), 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.