Lincoln Air Quality in 2023

In 2023, Lincoln's air quality (Lincoln, NE area) had a median daily AQI of 42 (Good) across 283 monitored days. 3 days (1.1%) reached Unhealthy for Sensitive Groups or worse, 197 were Good, and the year's peak AQI was 160 (Unhealthy). Ground-level ozone set the daily AQI on 212 of those days. The cleanest month of 2023 was October (median AQI 29, 0 days above 100) and the worst was June (median 58, 2 days above 100, peak 108).

42
Median AQI
Good
3
Days above AQI 100
1.1% of 283 days
64
90th percentile AQI
worst 1 day in 10
160
Peak AQI
Unhealthy
O3
Main pollutant
212 of 283 days
197
Good days
69.6% of days
  • Good: 69.6%
  • Moderate: 29.3%
  • Unhealthy for Sensitive Groups: 0.7%
  • Unhealthy or worse: 0.4%

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QUICK ANSWER

How was Lincoln's air quality in 2023?

Good on a typical day: median AQI 42, with 3 days above AQI 100 out of 283 monitored.

  • Peak AQI in 2023: 160 (Unhealthy).
  • Ground-level ozone was the main pollutant on 212 days.
  • Cleanest month: October; worst: June.

Frequently asked questions

What was the average AQI in Lincoln in 2023?

EPA's Air Quality System puts Lincoln's (Lincoln, NE) median daily AQI for 2023 at 42, which is Good. 3 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 160.

Which month had the worst air quality in Lincoln in 2023?

The cleanest month of 2023 was October (median AQI 29, 0 days above 100) and the worst was June (median 58, 2 days above 100, peak 108).

Lincoln month by month in 2023

Lincoln air quality month by month, 2023 (Lincoln, NE, EPA AQS daily AQI)

MonthDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
January1047089PM2.5
February829058PM2.5
March3139057O3
April3043067O3
May3151093O3
Juneworst30582108O3
July3042070O3
August3140064O3
September30461160O3
Octobercleanest3129051O3
November1129051PM2.5
December1036062PM2.5

How 2023 compares

Activity-specific thresholds: running, cycling, kids' sports.

Right now in Lincoln

The latest EPA AirNow observation puts Lincoln's AQI at 25 (PM2.5). The figures above are multi-year annual 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.