Augusta Air Quality in December
Across 2019–2025, Augusta's December air quality had a median AQI of 54 (Moderate) over 217 monitored days in the Augusta-Richmond County, GA-SC area. 1.4% of December days (3 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 86.2% of days. The cleanest December on record here was 2019 (median AQI 39, 0 days above 100) and the worst was 2021 (median 58, 2 days above 100, peak AQI 121).
- Good: 39.6%
- Moderate: 59.0%
- Unhealthy for Sensitive Groups: 1.4%
- Unhealthy or worse: 0.0%
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How is the air in Augusta in December?
Moderate on a typical day: median AQI 54 across 2019–2025, with 1.4% of December days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓39.6% of December days were Good (AQI 0–50), 59.0% Moderate (51–100).
- ✓3 days of 217 reached AQI 101+; the December peak was 123.
- ✓Best December: 2019; worst December: 2021.
Frequently asked questions
What is the air quality like in Augusta in December?▾
Across 2019–2025, the median daily AQI in Augusta in December was 54 (Moderate). 39.6% of days were Good, 59.0% Moderate, and 1.4% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.
Is December a good time for outdoor exercise in Augusta?▾
A typical December day in Augusta is Moderate (median AQI 54): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 71 of December days (1.4%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Augusta's December air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 86.2% of December days in Augusta. The highest December AQI recorded in 2019–2025 was 123 (Unhealthy for Sensitive Groups), in 2021.
Augusta December air quality, year by year
Augusta December air quality by year (Augusta-Richmond County, GA-SC, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 31 | 39 | 0 | 82 | PM2.5 |
| 2020 | 31 | 61 | 0 | 93 | PM2.5 |
| 2021worst | 31 | 58 | 2 | 121 | PM2.5 |
| 2022 | 31 | 54 | 0 | 88 | PM2.5 |
| 2023 | 31 | 45 | 0 | 93 | PM2.5 |
| 2024 | 31 | 59 | 0 | 96 | PM2.5 |
| 2025 | 31 | 56 | 1 | 123 | PM2.5 |
What December air means in Augusta
A typical December day in Augusta is Moderate (median AQI 54): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 71 of December days (1.4%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
December's median AQI of 54 is in line with Augusta's whole-year median of 52, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median December AQI across every EPA metro area (95,590 metro-days, 2019–2025) is 39, so Augusta runs above the national December norm; 1.4% of its December days topped AQI 100 versus 0.7% nationally (about the same).
December is part of Augusta's winter season (December, January, February); the winter page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Augusta
The latest EPA AirNow observation puts Augusta's AQI at 49 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Augusta air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Augusta-Richmond County, GA-SC), 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.