Buffalo Air Quality in July
Across 2019–2025, Buffalo's July air quality had a median AQI of 52 (Moderate) over 217 monitored days in the Buffalo-Cheektowaga-Niagara Falls, NY area. 3.2% of July days (7 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 53.9% of days. The cleanest July on record here was 2019 (median AQI 52, 0 days above 100) and the worst was 2025 (median 60, 3 days above 100, peak AQI 115).
- Good: 45.2%
- Moderate: 51.6%
- Unhealthy for Sensitive Groups: 2.3%
- Unhealthy or worse: 0.9%
Extra Protection for Buffalo Homes
Air quality in Buffalo is moderate (AQI 53), 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 Buffalo in July?
Moderate on a typical day: median AQI 52 across 2019–2025, with 3.2% of July days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓45.2% of July days were Good (AQI 0–50), 51.6% Moderate (51–100).
- ✓7 days of 217 reached AQI 101+; the July peak was 157.
- ✓Best July: 2019; worst July: 2025.
Frequently asked questions
What is the air quality like in Buffalo in July?▾
Across 2019–2025, the median daily AQI in Buffalo in July was 52 (Moderate). 45.2% of days were Good, 51.6% Moderate, and 3.2% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.
Is July a good time for outdoor exercise in Buffalo?▾
A typical July day in Buffalo is Moderate (median AQI 52): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 31 of July days (3.2%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Buffalo's July air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 53.9% of July days in Buffalo. The highest July AQI recorded in 2019–2025 was 157 (Unhealthy), in 2025.
Buffalo July air quality, year by year
Buffalo July air quality by year (Buffalo-Cheektowaga-Niagara Falls, NY, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 31 | 52 | 0 | 93 | PM2.5 |
| 2020 | 31 | 46 | 2 | 157 | O3 |
| 2021 | 31 | 53 | 0 | 99 | PM2.5 |
| 2022 | 31 | 46 | 1 | 127 | O3 |
| 2023 | 31 | 55 | 1 | 129 | PM2.5 |
| 2024 | 31 | 54 | 0 | 84 | O3 |
| 2025worst | 31 | 60 | 3 | 115 | PM2.5 |
What July air means in Buffalo
A typical July day in Buffalo is Moderate (median AQI 52): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 31 of July days (3.2%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
July's median AQI of 52 is above Buffalo's whole-year median of 44, making it one of the area's dirtier periods. Nationally, the median July AQI across every EPA metro area (103,858 metro-days, 2019–2025) is 47, so Buffalo runs above the national July norm; 3.2% of its July days topped AQI 100 versus 3.6% nationally (about the same).
July is part of Buffalo's summer season (June, July, August); the summer page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Buffalo
The latest EPA AirNow observation puts Buffalo's AQI at 53 (PM2.5). The figures above are multi-year month 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.