Lincoln Air Quality in December
Across 2019–2025, Lincoln's December air quality had a median AQI of 38 (Good) over 67 monitored days in the Lincoln, NE area. 0.0% of December days (0 of 67) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 100.0% of days. The cleanest December on record here was 2021 (median AQI 36, 0 days above 100) and the worst was 2024 (median 43, 0 days above 100, peak AQI 54).
- Good: 71.6%
- Moderate: 28.4%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
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How is the air in Lincoln in December?
Good on a typical day: median AQI 38 across 2019–2025, with 0.0% of December days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓71.6% of December days were Good (AQI 0–50), 28.4% Moderate (51–100).
- ✓0 days of 67 reached AQI 101+; the December peak was 72.
- ✓Best December: 2021; worst December: 2024.
Frequently asked questions
What is the air quality like in Lincoln in December?▾
Across 2019–2025, the median daily AQI in Lincoln in December was 38 (Good). 71.6% of days were Good, 28.4% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 67 monitored days in EPA's Air Quality System.
Is December a good time for outdoor exercise in Lincoln?▾
A typical December day in Lincoln sits in the Good range (median AQI 38), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of December days reached AQI 101+ in 2019–2025.
Which pollutant causes Lincoln's December air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 100.0% of December days in Lincoln. The highest December AQI recorded in 2019–2025 was 72 (Moderate), in 2024.
Lincoln December air quality, year by year
Lincoln December air quality by year (Lincoln, NE, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 10 | 37 | 0 | 54 | PM2.5 |
| 2020 | 10 | 42 | 0 | 55 | PM2.5 |
| 2021cleanest | 10 | 36 | 0 | 72 | PM2.5 |
| 2022 | 7 | 28 | 0 | 47 | PM2.5 |
| 2023 | 10 | 36 | 0 | 62 | PM2.5 |
| 2024worst | 10 | 43 | 0 | 54 | PM2.5 |
| 2025 | 10 | 36 | 0 | 65 | PM2.5 |
What December air means in Lincoln
A typical December day in Lincoln sits in the Good range (median AQI 38), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of December days reached AQI 101+ in 2019–2025.
Nationally, the median December AQI across every EPA metro area (95,590 metro-days, 2019–2025) is 39, so Lincoln runs in line with the national December norm; 0.0% of its December days topped AQI 100 versus 0.7% nationally (about the same).
December is part of Lincoln's winter season (December, January, February); the winter page pools all three months.
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 month 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.