Manchester Air Quality in November
Across 2019–2025, Manchester's November air quality had a median AQI of 31 (Good) over 210 monitored days in the Manchester-Nashua, NH area. 0.0% of November days (0 of 210) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 84.3% of days. The cleanest November on record here was 2021 (median AQI 26, 0 days above 100) and the worst was 2022 (median 34, 0 days above 100, peak AQI 51).
- Good: 97.6%
- Moderate: 2.4%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
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How is the air in Manchester in November?
Good on a typical day: median AQI 31 across 2019–2025, with 0.0% of November days above AQI 100. Ground-level ozone is the main driver.
- ✓97.6% of November days were Good (AQI 0–50), 2.4% Moderate (51–100).
- ✓0 days of 210 reached AQI 101+; the November peak was 53.
- ✓Best November: 2021; worst November: 2022.
Frequently asked questions
What is the air quality like in Manchester in November?▾
Across 2019–2025, the median daily AQI in Manchester in November was 31 (Good). 97.6% of days were Good, 2.4% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is November a good time for outdoor exercise in Manchester?▾
A typical November day in Manchester sits in the Good range (median AQI 31), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of November days reached AQI 101+ in 2019–2025.
Which pollutant causes Manchester's November air quality problems?▾
Ground-level ozone set the daily AQI on 84.3% of November days in Manchester. The highest November AQI recorded in 2019–2025 was 53 (Moderate), in 2022.
Manchester November air quality, year by year
Manchester November air quality by year (Manchester-Nashua, NH, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 32 | 0 | 45 | O3 |
| 2020 | 30 | 29 | 0 | 53 | O3 |
| 2021cleanest | 30 | 26 | 0 | 53 | O3 |
| 2022worst | 30 | 34 | 0 | 51 | O3 |
| 2023 | 30 | 32 | 0 | 52 | O3 |
| 2024 | 30 | 31 | 0 | 38 | O3 |
| 2025 | 30 | 31 | 0 | 37 | O3 |
What November air means in Manchester
A typical November day in Manchester sits in the Good range (median AQI 31), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of November days reached AQI 101+ in 2019–2025.
November's median AQI of 31 is below Manchester's whole-year median of 37, making it one of the area's cleaner periods. Nationally, the median November AQI across every EPA metro area (92,704 metro-days, 2019–2025) is 39, so Manchester runs below the national November norm; 0.0% of its November days topped AQI 100 versus 0.6% nationally (about the same).
November is part of Manchester's fall season (September, October, November); the fall page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Manchester
The latest EPA AirNow observation puts Manchester's AQI at 24 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Manchester air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Manchester-Nashua, NH), 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.