Montgomery Air Quality in Summer
Across 2019–2025, Montgomery's summer (June–August) air quality had a median AQI of 51 (Moderate) over 643 monitored days in the Montgomery, AL area. 0.6% of summer days (4 of 643) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 70.6% of days. The cleanest summer on record here was 2021 (median AQI 37, 0 days above 100) and the worst was 2020 (median 65, 2 days above 100, peak AQI 116).
- Good: 48.7%
- Moderate: 50.7%
- Unhealthy for Sensitive Groups: 0.6%
- Unhealthy or worse: 0.0%
Reduce Indoor Ozone in Montgomery
Today's main pollutant in Montgomery is ground-level ozone (AQI 30). Important: standard HEPA filters do NOT remove ozone — only a purifier with a substantial activated-carbon bed adsorbs it. The biggest wins are cutting indoor sources (gas appliances, certain "ionizer" purifiers) and ventilating when outdoor ozone is low (early morning). A high-carbon unit helps with the gases and VOCs that linger indoors.
Recommended: Levoit Core 300 — True HEPA + activated carbon · CADR ~141 CFM · rooms up to 219 sq ft
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How is the air in Montgomery in summer?
Moderate on a typical day: median AQI 51 across 2019–2025, with 0.6% of summer days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓48.7% of summer days were Good (AQI 0–50), 50.7% Moderate (51–100).
- ✓4 days of 643 reached AQI 101+; the summer peak was 122.
- ✓Cleanest month: July; worst month: June.
Frequently asked questions
What is the air quality like in Montgomery in summer?▾
Across 2019–2025, the median daily AQI in Montgomery in summer was 51 (Moderate). 48.7% of days were Good, 50.7% Moderate, and 0.6% reached Unhealthy for Sensitive Groups or worse, based on 643 monitored days in EPA's Air Quality System.
Is summer a good time for outdoor exercise in Montgomery?▾
A typical summer day in Montgomery is Moderate (median AQI 51): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of summer days reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Montgomery's summer air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 70.6% of summer days in Montgomery. The highest summer AQI recorded in 2019–2025 was 122 (Unhealthy for Sensitive Groups), in 2020.
Montgomery summer air quality, year by year
Montgomery summer air quality by year (Montgomery, AL, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 92 | 57 | 1 | 122 | PM2.5 |
| 2020worst | 91 | 65 | 2 | 116 | PM2.5 |
| 2021cleanest | 92 | 37 | 0 | 90 | PM2.5 |
| 2022 | 92 | 37 | 0 | 84 | O3 |
| 2023 | 92 | 56 | 0 | 93 | PM2.5 |
| 2024 | 92 | 43 | 1 | 102 | PM2.5 |
| 2025 | 92 | 44 | 0 | 64 | PM2.5 |
What summer air means in Montgomery
A typical summer day in Montgomery is Moderate (median AQI 51): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of summer days reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Summer's median AQI of 51 is above Montgomery's whole-year median of 44, making it one of the area's dirtier periods. Nationally, the median Summer AQI across every EPA metro area (308,645 metro-days, 2019–2025) is 46, so Montgomery runs above the national Summer norm; 0.6% of its Summer days topped AQI 100 versus 3.6% nationally (below average).
Within the season, July is the cleanest month (median AQI 50, 0.0% of days above 100) and June the worst (median 52, 1.4% above 100).
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Montgomery
The latest EPA AirNow observation puts Montgomery's AQI at 30 (O3). The figures above are multi-year season statistics, not today's reading.
View current Montgomery air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Montgomery, AL), 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.