Toledo Air Quality in Fall
Across 2019–2025, Toledo's fall (September–November) air quality had a median AQI of 42 (Good) over 637 monitored days in the Toledo, OH area. 0.0% of fall days (0 of 637) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 72.2% of days. The cleanest fall on record here was 2023 (median AQI 36, 0 days above 100) and the worst was 2024 (median 51, 0 days above 100, peak AQI 100).
- Good: 65.9%
- Moderate: 34.1%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
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How is the air in Toledo in fall?
Good on a typical day: median AQI 42 across 2019–2025, with 0.0% of fall days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓65.9% of fall days were Good (AQI 0–50), 34.1% Moderate (51–100).
- ✓0 days of 637 reached AQI 101+; the fall peak was 100.
- ✓Cleanest month: October; worst month: September.
Frequently asked questions
What is the air quality like in Toledo in fall?▾
Across 2019–2025, the median daily AQI in Toledo in fall was 42 (Good). 65.9% of days were Good, 34.1% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 637 monitored days in EPA's Air Quality System.
Is fall a good time for outdoor exercise in Toledo?▾
A typical fall day in Toledo sits in the Good range (median AQI 42), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of fall days reached AQI 101+ in 2019–2025.
Which pollutant causes Toledo's fall air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 72.2% of fall days in Toledo. The highest fall AQI recorded in 2019–2025 was 100 (Moderate), in 2024.
Toledo fall air quality, year by year
Toledo fall air quality by year (Toledo, OH, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 91 | 41 | 0 | 80 | PM2.5 |
| 2020 | 91 | 40 | 0 | 90 | PM2.5 |
| 2021 | 91 | 43 | 0 | 69 | PM2.5 |
| 2022 | 91 | 40 | 0 | 76 | PM2.5 |
| 2023cleanest | 91 | 36 | 0 | 81 | PM2.5 |
| 2024worst | 91 | 51 | 0 | 100 | PM2.5 |
| 2025 | 91 | 44 | 0 | 100 | PM2.5 |
What fall air means in Toledo
A typical fall day in Toledo sits in the Good range (median AQI 42), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of fall days reached AQI 101+ in 2019–2025.
Fall's median AQI of 42 is in line with Toledo's whole-year median of 45, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median Fall AQI across every EPA metro area (296,275 metro-days, 2019–2025) is 40, so Toledo runs in line with the national Fall norm; 0.0% of its Fall days topped AQI 100 versus 1.5% nationally (below average).
Within the season, October is the cleanest month (median AQI 38, 0.0% of days above 100) and September the worst (median 48, 0.0% above 100).
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 season 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.