West Palm Beach Air Quality in January
Across 2019–2025, West Palm Beach's January air quality had a median AQI of 52 (Moderate) over 217 monitored days in the Miami-Fort Lauderdale-West Palm Beach, FL area. 1.8% of January days (4 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 85.3% of days. The cleanest January on record here was 2025 (median AQI 49, 0 days above 100) and the worst was 2023 (median 58, 1 day above 100, peak AQI 170).
- Good: 36.4%
- Moderate: 61.8%
- Unhealthy for Sensitive Groups: 0.9%
- Unhealthy or worse: 0.9%
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How is the air in West Palm Beach in January?
Moderate on a typical day: median AQI 52 across 2019–2025, with 1.8% of January days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓36.4% of January days were Good (AQI 0–50), 61.8% Moderate (51–100).
- ✓4 days of 217 reached AQI 101+; the January peak was 197.
- ✓Best January: 2025; worst January: 2023.
Frequently asked questions
What is the air quality like in West Palm Beach in January?▾
Across 2019–2025, the median daily AQI in West Palm Beach in January was 52 (Moderate). 36.4% of days were Good, 61.8% Moderate, and 1.8% 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 West Palm Beach?▾
A typical January day in West Palm Beach is Moderate (median AQI 52): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 56 of January days (1.8%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes West Palm Beach's January air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 85.3% of January days in West Palm Beach. The highest January AQI recorded in 2019–2025 was 197 (Unhealthy), in 2023.
West Palm Beach January air quality, year by year
West Palm Beach January air quality by year (Miami-Fort Lauderdale-West Palm Beach, FL, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 31 | 49 | 1 | 146 | PM2.5 |
| 2020 | 31 | 54 | 0 | 84 | PM2.5 |
| 2021 | 31 | 56 | 0 | 69 | PM2.5 |
| 2022 | 31 | 51 | 1 | 136 | PM2.5 |
| 2023worst | 31 | 58 | 1 | 170 | PM2.5 |
| 2024 | 31 | 52 | 1 | 197 | PM2.5 |
| 2025cleanest | 31 | 49 | 0 | 80 | PM2.5 |
What January air means in West Palm Beach
A typical January day in West Palm Beach is Moderate (median AQI 52): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 56 of January days (1.8%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
January's median AQI of 52 is in line with West Palm Beach's whole-year median of 51, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median January AQI across every EPA metro area (95,602 metro-days, 2019–2025) is 39, so West Palm Beach runs above the national January norm; 1.8% of its January days topped AQI 100 versus 0.7% nationally (above average).
January is part of West Palm Beach's winter season (December, January, February); the winter page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in West Palm Beach
The latest EPA AirNow observation puts West Palm Beach's AQI at 28 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current West Palm Beach air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Miami-Fort Lauderdale-West Palm Beach, FL), 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.