New Orleans Air Quality in 2025
In 2025, New Orleans's air quality (New Orleans-Metairie, LA area) had a median daily AQI of 49 (Good) across 365 monitored days. 2 days (0.5%) reached Unhealthy for Sensitive Groups or worse, 189 were Good, and the year's peak AQI was 105 (Unhealthy for Sensitive Groups). Fine particulate matter (PM2.5) set the daily AQI on 209 of those days. The cleanest month of 2025 was December (median AQI 38, 0 days above 100) and the worst was September (median 54, 1 day above 100, peak 101).
- Good: 51.8%
- Moderate: 47.7%
- Unhealthy for Sensitive Groups: 0.5%
- Unhealthy or worse: 0.0%
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How was New Orleans's air quality in 2025?
Good on a typical day: median AQI 49, with 2 days above AQI 100 out of 365 monitored — the 3rd cleanest of 7 years on record for the area.
- ✓Peak AQI in 2025: 105 (Unhealthy for Sensitive Groups).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 209 days.
- ✓Cleanest month: December; worst: September.
Frequently asked questions
What was the average AQI in New Orleans in 2025?▾
EPA's Air Quality System puts New Orleans's (New Orleans-Metairie, LA) median daily AQI for 2025 at 49, which is Good. 2 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 105.
Which month had the worst air quality in New Orleans in 2025?▾
The cleanest month of 2025 was December (median AQI 38, 0 days above 100) and the worst was September (median 54, 1 day above 100, peak 101).
Was 2025 a good or bad year for New Orleans's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2025 ranks 3rd cleanest by days above AQI 100. 2025's median of 49 is in line with the area's typical annual median of 49.
New Orleans month by month in 2025
New Orleans air quality month by month, 2025 (New Orleans-Metairie, LA, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 42 | 0 | 57 | O3 |
| February | 28 | 57 | 0 | 76 | PM2.5 |
| March | 31 | 52 | 1 | 105 | O3 |
| April | 30 | 54 | 0 | 100 | PM2.5 |
| May | 31 | 49 | 0 | 84 | O3 |
| June | 30 | 54 | 0 | 87 | PM2.5 |
| July | 31 | 49 | 0 | 90 | PM2.5 |
| August | 31 | 51 | 0 | 80 | PM2.5 |
| Septemberworst | 30 | 54 | 1 | 101 | O3 |
| October | 31 | 47 | 0 | 84 | O3 |
| November | 30 | 42 | 0 | 77 | PM2.5 |
| Decembercleanest | 31 | 38 | 0 | 81 | PM2.5 |
How 2025 compares
Among the 7 years EPA has published for the area (2019–2025), 2025 ranks 3rd cleanest by days above AQI 100.
2025's median of 49 is in line with the area's typical annual median of 49.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in New Orleans
The latest EPA AirNow observation puts New Orleans's AQI at 43 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current New Orleans air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (New Orleans-Metairie, LA), 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.