Orlando Air Quality in December
Across 2019–2025, Orlando's December air quality had a median AQI of 40 (Good) over 217 monitored days in the Orlando-Kissimmee-Sanford, FL area. 0.0% of December days (0 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 64.1% of days. The cleanest December on record here was 2023 (median AQI 38, 0 days above 100) and the worst was 2020 (median 48, 0 days above 100, peak AQI 65).
- Good: 75.6%
- Moderate: 24.4%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
Reduce Indoor Ozone in Orlando
Today's main pollutant in Orlando is ground-level ozone (AQI 37). 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.
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How is the air in Orlando in December?
Good on a typical day: median AQI 40 across 2019–2025, with 0.0% of December days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓75.6% of December days were Good (AQI 0–50), 24.4% Moderate (51–100).
- ✓0 days of 217 reached AQI 101+; the December peak was 81.
- ✓Best December: 2023; worst December: 2020.
Frequently asked questions
What is the air quality like in Orlando in December?▾
Across 2019–2025, the median daily AQI in Orlando in December was 40 (Good). 75.6% of days were Good, 24.4% Moderate, and 0.0% 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 Orlando?▾
A typical December day in Orlando sits in the Good range (median AQI 40), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of December days reached AQI 101+ in 2019–2025.
Which pollutant causes Orlando's December air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 64.1% of December days in Orlando. The highest December AQI recorded in 2019–2025 was 81 (Moderate), in 2020.
Orlando December air quality, year by year
Orlando December air quality by year (Orlando-Kissimmee-Sanford, FL, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 31 | 40 | 0 | 60 | PM2.5 |
| 2020worst | 31 | 48 | 0 | 65 | PM2.5 |
| 2021 | 31 | 44 | 0 | 68 | PM2.5 |
| 2022 | 31 | 39 | 0 | 57 | PM2.5 |
| 2023cleanest | 31 | 38 | 0 | 75 | PM2.5 |
| 2024 | 31 | 39 | 0 | 81 | PM2.5 |
| 2025 | 31 | 41 | 0 | 74 | PM2.5 |
What December air means in Orlando
A typical December day in Orlando sits in the Good range (median AQI 40), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of December days reached AQI 101+ in 2019–2025.
December's median AQI of 40 is below Orlando's whole-year median of 44, making it one of the area's cleaner periods. Nationally, the median December AQI across every EPA metro area (95,590 metro-days, 2019–2025) is 39, so Orlando runs in line with the national December norm; 0.0% of its December days topped AQI 100 versus 0.7% nationally (about the same).
December is part of Orlando's winter season (December, January, February); the winter page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Orlando
The latest EPA AirNow observation puts Orlando's AQI at 37 (O3). The figures above are multi-year month statistics, not today's reading.
View current Orlando air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Orlando-Kissimmee-Sanford, 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.