Las Vegas Air Quality in June
Across 2019–2025, Las Vegas's June air quality had a median AQI of 84 (Moderate) over 210 monitored days in the Las Vegas-Henderson-Paradise, NV area. 15.7% of June days (33 of 210) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 95.7% of days. The cleanest June on record here was 2019 (median AQI 87, 2 days above 100) and the worst was 2021 (median 82, 9 days above 100, peak AQI 115).
- Good: 4.8%
- Moderate: 79.5%
- Unhealthy for Sensitive Groups: 15.7%
- 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.
Recommended: Levoit Core 300 — True HEPA + activated carbon · CADR ~141 CFM · rooms up to 219 sq ft
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How is the air in Las Vegas in June?
Moderate on a typical day: median AQI 84 across 2019–2025, with 15.7% of June days above AQI 100. Ground-level ozone is the main driver.
- ✓4.8% of June days were Good (AQI 0–50), 79.5% Moderate (51–100).
- ✓33 days of 210 reached AQI 101+; the June peak was 126.
- ✓Best June: 2019; worst June: 2021.
Frequently asked questions
What is the air quality like in Las Vegas in June?▾
Across 2019–2025, the median daily AQI in Las Vegas in June was 84 (Moderate). 4.8% of days were Good, 79.5% Moderate, and 15.7% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is June a good time for outdoor exercise in Las Vegas?▾
A typical June day in Las Vegas is Moderate (median AQI 84): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 6 of June days (15.7%) 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 June air quality problems?▾
Ground-level ozone set the daily AQI on 95.7% of June days in Las Vegas. The highest June AQI recorded in 2019–2025 was 126 (Unhealthy for Sensitive Groups), in 2021.
Las Vegas June air quality, year by year
Las Vegas June 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 |
|---|---|---|---|---|---|
| 2019cleanest | 30 | 87 | 2 | 105 | O3 |
| 2020 | 30 | 67 | 3 | 126 | O3 |
| 2021worst | 30 | 82 | 9 | 115 | O3 |
| 2022 | 30 | 76 | 3 | 105 | O3 |
| 2023 | 30 | 90 | 5 | 112 | O3 |
| 2024 | 30 | 82 | 5 | 126 | O3 |
| 2025 | 30 | 87 | 6 | 126 | O3 |
What June air means in Las Vegas
A typical June day in Las Vegas is Moderate (median AQI 84): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 6 of June days (15.7%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
June's median AQI of 84 is above Las Vegas's whole-year median of 62, making it one of the area's dirtier periods. Nationally, the median June AQI across every EPA metro area (100,635 metro-days, 2019–2025) is 46, so Las Vegas runs above the national June norm; 15.7% of its June days topped AQI 100 versus 3.7% nationally (above average).
June is part of Las Vegas's summer season (June, July, August); the summer 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.