Buffalo Air Quality in 2025
In 2025, Buffalo's air quality (Buffalo-Cheektowaga-Niagara Falls, NY area) had a median daily AQI of 44 (Good) across 365 monitored days. 11 days (3.0%) reached Unhealthy for Sensitive Groups or worse, 233 were Good, and the year's peak AQI was 140 (Unhealthy for Sensitive Groups). Fine particulate matter (PM2.5) set the daily AQI on 200 of those days. The cleanest month of 2025 was October (median AQI 31, 0 days above 100) and the worst was August (median 54, 5 days above 100, peak 140).
- Good: 63.8%
- Moderate: 33.2%
- Unhealthy for Sensitive Groups: 3.0%
- Unhealthy or worse: 0.0%
Extra Protection for Buffalo Homes
Air quality in Buffalo is moderate (AQI 54), 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 was Buffalo's air quality in 2025?
Good on a typical day: median AQI 44, with 11 days above AQI 100 out of 365 monitored — the 7th cleanest of 7 years on record for the area.
- ✓Peak AQI in 2025: 140 (Unhealthy for Sensitive Groups).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 200 days.
- ✓Cleanest month: October; worst: August.
Frequently asked questions
What was the average AQI in Buffalo in 2025?▾
EPA's Air Quality System puts Buffalo's (Buffalo-Cheektowaga-Niagara Falls, NY) median daily AQI for 2025 at 44, which is Good. 11 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 140.
Which month had the worst air quality in Buffalo in 2025?▾
The cleanest month of 2025 was October (median AQI 31, 0 days above 100) and the worst was August (median 54, 5 days above 100, peak 140).
Was 2025 a good or bad year for Buffalo's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2025 ranks 7th cleanest by days above AQI 100 — the worst year on record here. 2025's median of 44 is in line with the area's typical annual median of 44.
Buffalo month by month in 2025
Buffalo air quality month by month, 2025 (Buffalo-Cheektowaga-Niagara Falls, NY, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 43 | 0 | 78 | PM2.5 |
| February | 28 | 46 | 0 | 70 | PM2.5 |
| March | 31 | 40 | 0 | 61 | O3 |
| April | 30 | 43 | 0 | 84 | O3 |
| May | 31 | 39 | 0 | 74 | O3 |
| June | 30 | 58 | 3 | 104 | PM2.5 |
| July | 31 | 60 | 3 | 115 | PM2.5 |
| Augustworst | 31 | 54 | 5 | 140 | PM2.5 |
| September | 30 | 46 | 0 | 77 | O3 |
| Octobercleanest | 31 | 31 | 0 | 84 | O3 |
| November | 30 | 36 | 0 | 61 | PM2.5 |
| December | 31 | 47 | 0 | 62 | PM2.5 |
How 2025 compares
Among the 7 years EPA has published for the area (2019–2025), 2025 ranks 7th cleanest by days above AQI 100 — the worst year on record here.
2025's median of 44 is in line with the area's typical annual median of 44.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Buffalo
The latest EPA AirNow observation puts Buffalo's AQI at 54 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Buffalo air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Buffalo-Cheektowaga-Niagara Falls, NY), 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.