Lincoln Air Quality in Fall
Across 2019–2025, Lincoln's fall (September–November) air quality had a median AQI of 33 (Good) over 503 monitored days in the Lincoln, NE area. 0.2% of fall days (1 of 503) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 70.2% of days. The cleanest fall on record here was 2019 (median AQI 29, 0 days above 100) and the worst was 2023 (median 33, 1 day above 100, peak AQI 160).
- Good: 89.7%
- Moderate: 10.1%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.2%
Improve Indoor Air Quality
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How is the air in Lincoln in fall?
Good on a typical day: median AQI 33 across 2019–2025, with 0.2% of fall days above AQI 100. Ground-level ozone is the main driver.
- ✓89.7% of fall days were Good (AQI 0–50), 10.1% Moderate (51–100).
- ✓1 day of 503 reached AQI 101+; the fall peak was 160.
- ✓Cleanest month: November; worst month: September.
Frequently asked questions
What is the air quality like in Lincoln in fall?▾
Across 2019–2025, the median daily AQI in Lincoln in fall was 33 (Good). 89.7% of days were Good, 10.1% Moderate, and 0.2% reached Unhealthy for Sensitive Groups or worse, based on 503 monitored days in EPA's Air Quality System.
Is fall a good time for outdoor exercise in Lincoln?▾
A typical fall day in Lincoln sits in the Good range (median AQI 33), 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 Lincoln's fall air quality problems?▾
Ground-level ozone set the daily AQI on 70.2% of fall days in Lincoln. The highest fall AQI recorded in 2019–2025 was 160 (Unhealthy), in 2023.
Lincoln fall air quality, year by year
Lincoln fall air quality by year (Lincoln, NE, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 76 | 29 | 0 | 51 | O3 |
| 2020 | 71 | 30 | 0 | 62 | O3 |
| 2021 | 67 | 32 | 0 | 81 | O3 |
| 2022 | 71 | 34 | 0 | 61 | O3 |
| 2023worst | 72 | 33 | 1 | 160 | O3 |
| 2024 | 71 | 37 | 0 | 82 | O3 |
| 2025 | 75 | 34 | 0 | 71 | O3 |
What fall air means in Lincoln
A typical fall day in Lincoln sits in the Good range (median AQI 33), 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.
Nationally, the median Fall AQI across every EPA metro area (296,275 metro-days, 2019–2025) is 40, so Lincoln runs below the national Fall norm; 0.2% of its Fall days topped AQI 100 versus 1.5% nationally (below average).
Within the season, November is the cleanest month (median AQI 28, 0.0% of days above 100) and September the worst (median 36, 0.5% above 100).
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Lincoln
The latest EPA AirNow observation puts Lincoln's AQI at 34 (PM2.5). The figures above are multi-year season statistics, not today's reading.
View current Lincoln air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Lincoln, NE), 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.