Mesa Air Quality in June
Across 2019–2025, Mesa's June air quality had a median AQI of 97 (Moderate) over 210 monitored days in the Phoenix-Mesa-Scottsdale, AZ area. 44.3% of June days (93 of 210) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 56.2% of days. The cleanest June on record here was 2025 (median AQI 87, 7 days above 100) and the worst was 2023 (median 112, 18 days above 100, peak AQI 156).
- Good: 0.0%
- Moderate: 55.7%
- Unhealthy for Sensitive Groups: 33.3%
- Unhealthy or worse: 11.0%
Reduce Indoor Ozone in Mesa
Today's main pollutant in Mesa 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.
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 Mesa in June?
Moderate on a typical day: median AQI 97 across 2019–2025, with 44.3% of June days above AQI 100. Ground-level ozone is the main driver.
- ✓0.0% of June days were Good (AQI 0–50), 55.7% Moderate (51–100).
- ✓93 days of 210 reached AQI 101+; the June peak was 929.
- ✓Best June: 2025; worst June: 2023.
Frequently asked questions
What is the air quality like in Mesa in June?▾
Across 2019–2025, the median daily AQI in Mesa in June was 97 (Moderate). 0.0% of days were Good, 55.7% Moderate, and 44.3% 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 Mesa?▾
A typical June day in Mesa is Moderate (median AQI 97): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 2 of June days (44.3%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Mesa's June air quality problems?▾
Ground-level ozone set the daily AQI on 56.2% of June days in Mesa. The highest June AQI recorded in 2019–2025 was 929 (Hazardous), in 2023.
Mesa June air quality, year by year
Mesa June air quality by year (Phoenix-Mesa-Scottsdale, AZ, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 99 | 15 | 929 | O3 |
| 2020 | 30 | 84 | 9 | 130 | O3 |
| 2021 | 30 | 95 | 13 | 203 | O3 |
| 2022 | 30 | 107 | 17 | 264 | O3 |
| 2023worst | 30 | 112 | 18 | 156 | O3 |
| 2024 | 30 | 98 | 14 | 289 | O3 |
| 2025cleanest | 30 | 87 | 7 | 119 | O3 |
What June air means in Mesa
A typical June day in Mesa is Moderate (median AQI 97): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 2 of June days (44.3%) 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 97 is above Mesa's whole-year median of 79, 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 Mesa runs above the national June norm; 44.3% of its June days topped AQI 100 versus 3.7% nationally (above average).
June is part of Mesa's summer season (June, July, August); the summer page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Mesa
The latest EPA AirNow observation puts Mesa's AQI at 37 (O3). The figures above are multi-year month statistics, not today's reading.
View current Mesa air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Phoenix-Mesa-Scottsdale, AZ), 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.