Cincinnati Air Quality in June
Across 2019–2025, Cincinnati's June air quality had a median AQI of 61 (Moderate) over 210 monitored days in the Cincinnati, OH-KY-IN area. 16.7% of June days (35 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 54.8% of days. The cleanest June on record here was 2019 (median AQI 57, 1 day above 100) and the worst was 2023 (median 95, 14 days above 100, peak AQI 197).
- Good: 11.9%
- Moderate: 71.4%
- Unhealthy for Sensitive Groups: 14.3%
- Unhealthy or worse: 2.4%
Extra Protection for Cincinnati Homes
Air quality in Cincinnati is moderate (AQI 65), 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 Cincinnati in June?
Moderate on a typical day: median AQI 61 across 2019–2025, with 16.7% of June days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓11.9% of June days were Good (AQI 0–50), 71.4% Moderate (51–100).
- ✓35 days of 210 reached AQI 101+; the June peak was 197.
- ✓Best June: 2019; worst June: 2023.
Frequently asked questions
What is the air quality like in Cincinnati in June?▾
Across 2019–2025, the median daily AQI in Cincinnati in June was 61 (Moderate). 11.9% of days were Good, 71.4% Moderate, and 16.7% 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 Cincinnati?▾
A typical June day in Cincinnati is Moderate (median AQI 61): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 6 of June days (16.7%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Cincinnati's June air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 54.8% of June days in Cincinnati. The highest June AQI recorded in 2019–2025 was 197 (Unhealthy), in 2023.
Cincinnati June air quality, year by year
Cincinnati June air quality by year (Cincinnati, OH-KY-IN, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 30 | 57 | 1 | 101 | O3 |
| 2020 | 30 | 61 | 1 | 115 | O3 |
| 2021 | 30 | 60 | 2 | 101 | PM2.5 |
| 2022 | 30 | 71 | 6 | 151 | O3 |
| 2023worst | 30 | 95 | 14 | 197 | PM2.5 |
| 2024 | 30 | 56 | 7 | 129 | O3 |
| 2025 | 30 | 61 | 4 | 126 | PM2.5 |
What June air means in Cincinnati
A typical June day in Cincinnati is Moderate (median AQI 61): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 6 of June days (16.7%) 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 61 is above Cincinnati's whole-year median of 56, 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 Cincinnati runs above the national June norm; 16.7% of its June days topped AQI 100 versus 3.7% nationally (above average).
June is part of Cincinnati's summer season (June, July, August); the summer page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Cincinnati
The latest EPA AirNow observation puts Cincinnati's AQI at 65 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Cincinnati air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Cincinnati, OH-KY-IN), 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.