Las Vegas Air Quality in November
Across 2019–2025, Las Vegas's November air quality had a median AQI of 61 (Moderate) over 210 monitored days in the Las Vegas-Henderson-Paradise, NV area. 0.0% of November days (0 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 73.8% of days. The cleanest November on record here was 2024 (median AQI 49, 0 days above 100) and the worst was 2020 (median 70, 0 days above 100, peak AQI 90).
- Good: 33.3%
- Moderate: 66.7%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
Reduce Indoor Ozone in Las Vegas
Today's main pollutant in Las Vegas is ground-level ozone (AQI 31). 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 Las Vegas in November?
Moderate on a typical day: median AQI 61 across 2019–2025, with 0.0% of November days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓33.3% of November days were Good (AQI 0–50), 66.7% Moderate (51–100).
- ✓0 days of 210 reached AQI 101+; the November peak was 92.
- ✓Best November: 2024; worst November: 2020.
Frequently asked questions
What is the air quality like in Las Vegas in November?▾
Across 2019–2025, the median daily AQI in Las Vegas in November was 61 (Moderate). 33.3% of days were Good, 66.7% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is November a good time for outdoor exercise in Las Vegas?▾
A typical November day in Las Vegas is Moderate (median AQI 61): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of November 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 Las Vegas's November air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 73.8% of November days in Las Vegas. The highest November AQI recorded in 2019–2025 was 92 (Moderate), in 2020.
Las Vegas November air quality, year by year
Las Vegas November air quality by year (Las Vegas-Henderson-Paradise, NV, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 64 | 0 | 90 | PM2.5 |
| 2020worst | 30 | 70 | 0 | 90 | PM2.5 |
| 2021 | 30 | 59 | 0 | 92 | PM2.5 |
| 2022 | 30 | 54 | 0 | 88 | PM2.5 |
| 2023 | 30 | 61 | 0 | 90 | PM2.5 |
| 2024cleanest | 30 | 49 | 0 | 81 | PM2.5 |
| 2025 | 30 | 55 | 0 | 92 | PM2.5 |
What November air means in Las Vegas
A typical November day in Las Vegas is Moderate (median AQI 61): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of November days reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
November's median AQI of 61 is in line with Las Vegas's whole-year median of 62, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median November AQI across every EPA metro area (92,704 metro-days, 2019–2025) is 39, so Las Vegas runs above the national November norm; 0.0% of its November days topped AQI 100 versus 0.6% nationally (about the same).
November is part of Las Vegas's fall season (September, October, November); the fall page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Las Vegas
The latest EPA AirNow observation puts Las Vegas's AQI at 31 (O3). The figures above are multi-year month statistics, not today's reading.
View current Las Vegas air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Las Vegas-Henderson-Paradise, NV), 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.