Toledo Air Quality in August
Across 2019–2025, Toledo's August air quality had a median AQI of 52 (Moderate) over 217 monitored days in the Toledo, OH area. 2.8% of August days (6 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 63.1% of days. The cleanest August on record here was 2019 (median AQI 47, 0 days above 100) and the worst was 2025 (median 54, 3 days above 100, peak AQI 116).
- Good: 43.3%
- Moderate: 53.9%
- Unhealthy for Sensitive Groups: 2.8%
- Unhealthy or worse: 0.0%
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How is the air in Toledo in August?
Moderate on a typical day: median AQI 52 across 2019–2025, with 2.8% of August days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓43.3% of August days were Good (AQI 0–50), 53.9% Moderate (51–100).
- ✓6 days of 217 reached AQI 101+; the August peak was 116.
- ✓Best August: 2019; worst August: 2025.
Frequently asked questions
What is the air quality like in Toledo in August?▾
Across 2019–2025, the median daily AQI in Toledo in August was 52 (Moderate). 43.3% of days were Good, 53.9% Moderate, and 2.8% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.
Is August a good time for outdoor exercise in Toledo?▾
A typical August day in Toledo 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 36 of August days (2.8%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Toledo's August air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 63.1% of August days in Toledo. The highest August AQI recorded in 2019–2025 was 116 (Unhealthy for Sensitive Groups), in 2025.
Toledo August air quality, year by year
Toledo August air quality by year (Toledo, OH, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 31 | 47 | 0 | 71 | PM2.5 |
| 2020 | 31 | 52 | 0 | 84 | PM2.5 |
| 2021 | 31 | 56 | 0 | 100 | PM2.5 |
| 2022 | 31 | 49 | 0 | 67 | PM2.5 |
| 2023 | 31 | 54 | 2 | 108 | PM2.5 |
| 2024 | 31 | 53 | 1 | 101 | PM2.5 |
| 2025worst | 31 | 54 | 3 | 116 | PM2.5 |
What August air means in Toledo
A typical August day in Toledo 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 36 of August days (2.8%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
August's median AQI of 52 is above Toledo's whole-year median of 45, making it one of the area's dirtier periods. Nationally, the median August AQI across every EPA metro area (104,152 metro-days, 2019–2025) is 45, so Toledo runs above the national August norm; 2.8% of its August days topped AQI 100 versus 3.5% nationally (about the same).
August is part of Toledo's summer season (June, July, August); the summer page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Toledo
The latest EPA AirNow observation puts Toledo's AQI at 33 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Toledo air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Toledo, OH), 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.