Visalia Air Quality in June
Across 2019–2025, Visalia's June air quality had a median AQI of 93 (Moderate) over 210 monitored days in the Visalia-Porterville, CA area. 42.4% of June days (89 of 210) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 93.8% of days. The cleanest June on record here was 2023 (median AQI 80, 6 days above 100) and the worst was 2024 (median 114, 20 days above 100, peak AQI 166).
- Good: 7.6%
- Moderate: 50.0%
- Unhealthy for Sensitive Groups: 36.7%
- Unhealthy or worse: 5.7%
Extra Protection for Visalia Homes
Air quality in Visalia is moderate (AQI 83), with particle pollution the main concern. A True-HEPA purifier gives sensitive groups — kids, seniors and anyone with asthma or allergies — cleaner air indoors on days like today.
Recommended: Coway AP-1512HH Mighty — True HEPA + carbon · CADR ~246 CFM · rooms up to 361 sq ft
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How is the air in Visalia in June?
Moderate on a typical day: median AQI 93 across 2019–2025, with 42.4% of June days above AQI 100. Ground-level ozone is the main driver.
- ✓7.6% of June days were Good (AQI 0–50), 50.0% Moderate (51–100).
- ✓89 days of 210 reached AQI 101+; the June peak was 187.
- ✓Best June: 2023; worst June: 2024.
Frequently asked questions
What is the air quality like in Visalia in June?▾
Across 2019–2025, the median daily AQI in Visalia in June was 93 (Moderate). 7.6% of days were Good, 50.0% Moderate, and 42.4% 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 Visalia?▾
A typical June day in Visalia is Moderate (median AQI 93): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 2 of June days (42.4%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Visalia's June air quality problems?▾
Ground-level ozone set the daily AQI on 93.8% of June days in Visalia. The highest June AQI recorded in 2019–2025 was 187 (Unhealthy), in 2024.
Visalia June air quality, year by year
Visalia June air quality by year (Visalia-Porterville, CA, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 93 | 11 | 143 | O3 |
| 2020 | 30 | 89 | 13 | 159 | O3 |
| 2021 | 30 | 101 | 16 | 187 | O3 |
| 2022 | 30 | 90 | 12 | 133 | O3 |
| 2023cleanest | 30 | 80 | 6 | 154 | O3 |
| 2024worst | 30 | 114 | 20 | 166 | O3 |
| 2025 | 30 | 97 | 11 | 147 | O3 |
What June air means in Visalia
A typical June day in Visalia is Moderate (median AQI 93): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 2 of June days (42.4%) 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 93 is above Visalia's whole-year median of 71, 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 Visalia runs above the national June norm; 42.4% of its June days topped AQI 100 versus 3.7% nationally (above average).
June is part of Visalia's summer season (June, July, August); the summer page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Visalia
The latest EPA AirNow observation puts Visalia's AQI at 83 (PM10). The figures above are multi-year month statistics, not today's reading.
View current Visalia air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Visalia-Porterville, CA), 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.