Lexington Air Quality in July
Across 2019–2025, Lexington's July air quality had a median AQI of 49 (Good) over 217 monitored days in the Lexington-Fayette, KY area. 0.5% of July days (1 of 217) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 58.1% of days. The cleanest July on record here was 2020 (median AQI 48, 0 days above 100) and the worst was 2021 (median 60, 1 day above 100, peak AQI 101).
- Good: 53.0%
- Moderate: 46.5%
- Unhealthy for Sensitive Groups: 0.5%
- Unhealthy or worse: 0.0%
Extra Protection for Lexington Homes
Air quality in Lexington is moderate (AQI 53), with fine particles (PM2.5) the main concern. A True-HEPA purifier gives sensitive groups — kids, seniors and anyone with asthma or allergies — cleaner air indoors on days like today.
Recommended: Coway AP-1512HH Mighty — True HEPA + carbon · CADR ~246 CFM · rooms up to 361 sq ft
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How is the air in Lexington in July?
Good on a typical day: median AQI 49 across 2019–2025, with 0.5% of July days above AQI 100. Ground-level ozone is the main driver.
- ✓53.0% of July days were Good (AQI 0–50), 46.5% Moderate (51–100).
- ✓1 day of 217 reached AQI 101+; the July peak was 101.
- ✓Best July: 2020; worst July: 2021.
Frequently asked questions
What is the air quality like in Lexington in July?▾
Across 2019–2025, the median daily AQI in Lexington in July was 49 (Good). 53.0% of days were Good, 46.5% Moderate, and 0.5% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.
Is July a good time for outdoor exercise in Lexington?▾
A typical July day in Lexington sits in the Good range (median AQI 49), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of July days reached AQI 101+ in 2019–2025.
Which pollutant causes Lexington's July air quality problems?▾
Ground-level ozone set the daily AQI on 58.1% of July days in Lexington. The highest July AQI recorded in 2019–2025 was 101 (Unhealthy for Sensitive Groups), in 2021.
Lexington July air quality, year by year
Lexington July air quality by year (Lexington-Fayette, KY, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 31 | 52 | 0 | 71 | PM2.5 |
| 2020cleanest | 31 | 48 | 0 | 86 | O3 |
| 2021worst | 31 | 60 | 1 | 101 | PM2.5 |
| 2022 | 31 | 48 | 0 | 93 | O3 |
| 2023 | 31 | 51 | 0 | 93 | O3 |
| 2024 | 31 | 49 | 0 | 77 | O3 |
| 2025 | 31 | 49 | 0 | 75 | O3 |
What July air means in Lexington
A typical July day in Lexington sits in the Good range (median AQI 49), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of July days reached AQI 101+ in 2019–2025.
July's median AQI of 49 is above Lexington's whole-year median of 44, making it one of the area's dirtier periods. Nationally, the median July AQI across every EPA metro area (103,858 metro-days, 2019–2025) is 47, so Lexington runs in line with the national July norm; 0.5% of its July days topped AQI 100 versus 3.6% nationally (below average).
July is part of Lexington's summer season (June, July, August); the summer page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Lexington
The latest EPA AirNow observation puts Lexington's AQI at 53 (PM2.5). The figures above are multi-year month 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.