Baton Rouge Air Quality in January
Across 2019–2025, Baton Rouge's January air quality had a median AQI of 46 (Good) over 217 monitored days in the Baton Rouge, LA area. 0.9% of January days (2 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 77.0% of days. The cleanest January on record here was 2024 (median AQI 44, 0 days above 100) and the worst was 2023 (median 46, 1 day above 100, peak AQI 125).
- Good: 59.9%
- Moderate: 39.2%
- Unhealthy for Sensitive Groups: 0.9%
- Unhealthy or worse: 0.0%
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How is the air in Baton Rouge in January?
Good on a typical day: median AQI 46 across 2019–2025, with 0.9% of January days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓59.9% of January days were Good (AQI 0–50), 39.2% Moderate (51–100).
- ✓2 days of 217 reached AQI 101+; the January peak was 125.
- ✓Best January: 2024; worst January: 2023.
Frequently asked questions
What is the air quality like in Baton Rouge in January?▾
Across 2019–2025, the median daily AQI in Baton Rouge in January was 46 (Good). 59.9% of days were Good, 39.2% Moderate, and 0.9% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.
Is January a good time for outdoor exercise in Baton Rouge?▾
A typical January day in Baton Rouge sits in the Good range (median AQI 46), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of January days reached AQI 101+ in 2019–2025.
Which pollutant causes Baton Rouge's January air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 77.0% of January days in Baton Rouge. The highest January AQI recorded in 2019–2025 was 125 (Unhealthy for Sensitive Groups), in 2023.
Baton Rouge January air quality, year by year
Baton Rouge January air quality by year (Baton Rouge, LA, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 31 | 46 | 0 | 64 | PM2.5 |
| 2020 | 31 | 43 | 1 | 105 | PM2.5 |
| 2021 | 31 | 51 | 0 | 68 | PM2.5 |
| 2022 | 31 | 52 | 0 | 69 | PM2.5 |
| 2023worst | 31 | 46 | 1 | 125 | PM2.5 |
| 2024cleanest | 31 | 44 | 0 | 71 | PM2.5 |
| 2025 | 31 | 51 | 0 | 62 | PM2.5 |
What January air means in Baton Rouge
A typical January day in Baton Rouge sits in the Good range (median AQI 46), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of January days reached AQI 101+ in 2019–2025.
January's median AQI of 46 is below Baton Rouge's whole-year median of 53, making it one of the area's cleaner periods. Nationally, the median January AQI across every EPA metro area (95,602 metro-days, 2019–2025) is 39, so Baton Rouge runs above the national January norm; 0.9% of its January days topped AQI 100 versus 0.7% nationally (about the same).
January is part of Baton Rouge's winter season (December, January, February); the winter page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Baton Rouge
The latest EPA AirNow observation puts Baton Rouge's AQI at 46 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Baton Rouge air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Baton Rouge, LA), 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.