Lexington Air Quality in 2022
In 2022, Lexington's air quality (Lexington-Fayette, KY area) had a median daily AQI of 44 (Good) across 365 monitored days. 1 day (0.3%) reached Unhealthy for Sensitive Groups or worse, 233 were Good, and the year's peak AQI was 106 (Unhealthy for Sensitive Groups). Fine particulate matter (PM2.5) set the daily AQI on 217 of those days. The cleanest month of 2022 was December (median AQI 37, 0 days above 100) and the worst was November (median 52, 1 day above 100, peak 106).
- Good: 63.8%
- Moderate: 35.9%
- Unhealthy for Sensitive Groups: 0.3%
- Unhealthy or worse: 0.0%
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How was Lexington's air quality in 2022?
Good on a typical day: median AQI 44, with 1 day above AQI 100 out of 365 monitored — the 5th cleanest of 7 years on record for the area.
- ✓Peak AQI in 2022: 106 (Unhealthy for Sensitive Groups).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 217 days.
- ✓Cleanest month: December; worst: November.
Frequently asked questions
What was the average AQI in Lexington in 2022?▾
EPA's Air Quality System puts Lexington's (Lexington-Fayette, KY) median daily AQI for 2022 at 44, which is Good. 1 day were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 106.
Which month had the worst air quality in Lexington in 2022?▾
The cleanest month of 2022 was December (median AQI 37, 0 days above 100) and the worst was November (median 52, 1 day above 100, peak 106).
Was 2022 a good or bad year for Lexington's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2022 ranks 5th cleanest by days above AQI 100. 2022's median of 44 is in line with the area's typical annual median of 44.
Lexington month by month in 2022
Lexington air quality month by month, 2022 (Lexington-Fayette, KY, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 43 | 0 | 75 | PM2.5 |
| February | 28 | 43 | 0 | 58 | PM2.5 |
| March | 31 | 44 | 0 | 61 | O3 |
| April | 30 | 43 | 0 | 55 | O3 |
| May | 31 | 44 | 0 | 67 | O3 |
| June | 30 | 54 | 0 | 90 | O3 |
| July | 31 | 48 | 0 | 93 | O3 |
| August | 31 | 44 | 0 | 67 | O3 |
| September | 30 | 39 | 0 | 67 | O3 |
| October | 31 | 44 | 0 | 61 | PM2.5 |
| Novemberworst | 30 | 52 | 1 | 106 | PM2.5 |
| Decembercleanest | 31 | 37 | 0 | 59 | PM2.5 |
How 2022 compares
Among the 7 years EPA has published for the area (2019–2025), 2022 ranks 5th cleanest by days above AQI 100.
2022's median of 44 is in line with the area's typical annual median of 44.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Lexington
The latest EPA AirNow observation puts Lexington's AQI at 38 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Lexington air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Lexington-Fayette, KY), 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.