Atlanta Air Quality in July
Across 2019–2025, Atlanta's July air quality had a median AQI of 56 (Moderate) over 217 monitored days in the Atlanta-Sandy Springs-Roswell, GA area. 6.0% of July days (13 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 64.5% of days. The cleanest July on record here was 2025 (median AQI 52, 0 days above 100) and the worst was 2023 (median 62, 5 days above 100, peak AQI 153).
- Good: 28.6%
- Moderate: 65.4%
- Unhealthy for Sensitive Groups: 5.5%
- Unhealthy or worse: 0.5%
Extra Protection for Atlanta Homes
Air quality in Atlanta is moderate (AQI 56), 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 Atlanta in July?
Moderate on a typical day: median AQI 56 across 2019–2025, with 6.0% of July days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓28.6% of July days were Good (AQI 0–50), 65.4% Moderate (51–100).
- ✓13 days of 217 reached AQI 101+; the July peak was 153.
- ✓Best July: 2025; worst July: 2023.
Frequently asked questions
What is the air quality like in Atlanta in July?▾
Across 2019–2025, the median daily AQI in Atlanta in July was 56 (Moderate). 28.6% of days were Good, 65.4% Moderate, and 6.0% 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 Atlanta?▾
A typical July day in Atlanta is Moderate (median AQI 56): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 17 of July days (6.0%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Atlanta's July air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 64.5% of July days in Atlanta. The highest July AQI recorded in 2019–2025 was 153 (Unhealthy), in 2023.
Atlanta July air quality, year by year
Atlanta July air quality by year (Atlanta-Sandy Springs-Roswell, GA, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 31 | 63 | 1 | 115 | PM2.5 |
| 2020 | 31 | 56 | 1 | 125 | PM2.5 |
| 2021 | 31 | 55 | 2 | 150 | PM2.5 |
| 2022 | 31 | 53 | 0 | 80 | PM2.5 |
| 2023worst | 31 | 62 | 5 | 153 | PM2.5 |
| 2024 | 31 | 54 | 4 | 133 | PM2.5 |
| 2025cleanest | 31 | 52 | 0 | 93 | O3 |
What July air means in Atlanta
A typical July day in Atlanta is Moderate (median AQI 56): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 17 of July days (6.0%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
July's median AQI of 56 is in line with Atlanta's whole-year median of 54, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median July AQI across every EPA metro area (103,858 metro-days, 2019–2025) is 47, so Atlanta runs above the national July norm; 6.0% of its July days topped AQI 100 versus 3.6% nationally (above average).
July is part of Atlanta's summer season (June, July, August); the summer page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Atlanta
The latest EPA AirNow observation puts Atlanta's AQI at 56 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Atlanta air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Atlanta-Sandy Springs-Roswell, GA), 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.