Raleigh Air Quality in 2025
In 2025, Raleigh's air quality (Raleigh, NC area) had a median daily AQI of 44 (Good) across 365 monitored days. 0 days (0.0%) reached Unhealthy for Sensitive Groups or worse, 242 were Good, and the year's peak AQI was 84 (Moderate). Fine particulate matter (PM2.5) set the daily AQI on 218 of those days. The cleanest month of 2025 was October (median AQI 34, 0 days above 100) and the worst was June (median 53, 0 days above 100, peak 69).
- Good: 66.3%
- Moderate: 33.7%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
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How was Raleigh's air quality in 2025?
Good on a typical day: median AQI 44, with 0 days above AQI 100 out of 365 monitored — the 1st cleanest of 7 years on record for the area.
- ✓Peak AQI in 2025: 84 (Moderate).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 218 days.
- ✓Cleanest month: October; worst: June.
Frequently asked questions
What was the average AQI in Raleigh in 2025?▾
EPA's Air Quality System puts Raleigh's (Raleigh, NC) median daily AQI for 2025 at 44, which is Good. 0 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 84.
Which month had the worst air quality in Raleigh in 2025?▾
The cleanest month of 2025 was October (median AQI 34, 0 days above 100) and the worst was June (median 53, 0 days above 100, peak 69).
Was 2025 a good or bad year for Raleigh's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2025 ranks 1st cleanest by days above AQI 100 — the best year on record here. 2025's median of 44 is below the area's typical annual median of 48.
Raleigh month by month in 2025
Raleigh air quality month by month, 2025 (Raleigh, NC, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 42 | 0 | 58 | PM2.5 |
| February | 28 | 38 | 0 | 68 | PM2.5 |
| March | 31 | 48 | 0 | 84 | O3 |
| April | 30 | 50 | 0 | 61 | O3 |
| May | 31 | 44 | 0 | 61 | O3 |
| Juneworst | 30 | 53 | 0 | 69 | PM2.5 |
| July | 31 | 50 | 0 | 64 | PM2.5 |
| August | 31 | 40 | 0 | 73 | PM2.5 |
| September | 30 | 44 | 0 | 67 | PM2.5 |
| Octobercleanest | 31 | 34 | 0 | 55 | O3 |
| November | 30 | 49 | 0 | 76 | PM2.5 |
| December | 31 | 41 | 0 | 67 | PM2.5 |
How 2025 compares
Among the 7 years EPA has published for the area (2019–2025), 2025 ranks 1st cleanest by days above AQI 100 — the best year on record here.
2025's median of 44 is below the area's typical annual median of 48.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Raleigh
The latest EPA AirNow observation puts Raleigh's AQI at 47 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Raleigh air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Raleigh, NC), 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.