Buffalo Air Quality in June

Across 2019–2025, Buffalo's June air quality had a median AQI of 51 (Moderate) over 210 monitored days in the Buffalo-Cheektowaga-Niagara Falls, NY area. 5.7% of June days (12 of 210) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 53.8% of days. The cleanest June on record here was 2019 (median AQI 46, 0 days above 100) and the worst was 2023 (median 73, 7 days above 100, peak AQI 176).

51
Median AQI
Moderate
5.7%
Days above AQI 100
12 of 210 days
88
90th percentile AQI
worst 1 day in 10
176
Peak AQI
Unhealthy
O3
Main pollutant
53.8% of days
47.6%
Good days
100 of 210
  • Good: 47.6%
  • Moderate: 46.7%
  • Unhealthy for Sensitive Groups: 4.3%
  • Unhealthy or worse: 1.4%

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QUICK ANSWER

How is the air in Buffalo in June?

Moderate on a typical day: median AQI 51 across 2019–2025, with 5.7% of June days above AQI 100. Ground-level ozone is the main driver.

  • 47.6% of June days were Good (AQI 0–50), 46.7% Moderate (51–100).
  • 12 days of 210 reached AQI 101+; the June peak was 176.
  • Best June: 2019; worst June: 2023.

Frequently asked questions

What is the air quality like in Buffalo in June?

Across 2019–2025, the median daily AQI in Buffalo in June was 51 (Moderate). 47.6% of days were Good, 46.7% Moderate, and 5.7% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.

Is June a good time for outdoor exercise in Buffalo?

A typical June day in Buffalo is Moderate (median AQI 51): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 18 of June days (5.7%) 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 June air quality problems?

Ground-level ozone set the daily AQI on 53.8% of June days in Buffalo. The highest June AQI recorded in 2019–2025 was 176 (Unhealthy), in 2023.

Buffalo June air quality, year by year

Buffalo June air quality by year (Buffalo-Cheektowaga-Niagara Falls, NY, EPA AQS daily AQI)

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
2019cleanest3046077O3
20203049090O3
202130530100O3
202230481150O3
2023worst30737176PM2.5
202430491105O3
202530583104PM2.5

What June air means in Buffalo

A typical June day in Buffalo is Moderate (median AQI 51): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 18 of June days (5.7%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.

June's median AQI of 51 is above Buffalo's whole-year median of 44, making it one of the area's dirtier periods. Nationally, the median June AQI across every EPA metro area (100,635 metro-days, 2019–2025) is 46, so Buffalo runs above the national June norm; 5.7% of its June days topped AQI 100 versus 3.7% nationally (above average).

June 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 54 (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.