Visalia Air Quality in 2022
In 2022, Visalia's air quality (Visalia-Porterville, CA area) had a median daily AQI of 77 (Moderate) across 365 monitored days. 114 days (31.2%) reached Unhealthy for Sensitive Groups or worse, 58 were Good, and the year's peak AQI was 182 (Unhealthy). Ground-level ozone set the daily AQI on 192 of those days. The cleanest month of 2022 was March (median AQI 55, 0 days above 100) and the worst was August (median 122, 25 days above 100, peak 172).
- Good: 15.9%
- Moderate: 52.9%
- Unhealthy for Sensitive Groups: 29.0%
- Unhealthy or worse: 2.2%
Extra Protection for Visalia Homes
Air quality in Visalia is moderate (AQI 57), 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.
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How was Visalia's air quality in 2022?
Moderate on a typical day: median AQI 77, with 114 days above AQI 100 out of 365 monitored — the 5th cleanest of 7 years on record for the area.
- ✓Peak AQI in 2022: 182 (Unhealthy).
- ✓Ground-level ozone was the main pollutant on 192 days.
- ✓Cleanest month: March; worst: August.
Frequently asked questions
What was the average AQI in Visalia in 2022?▾
EPA's Air Quality System puts Visalia's (Visalia-Porterville, CA) median daily AQI for 2022 at 77, which is Moderate. 114 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 182.
Which month had the worst air quality in Visalia in 2022?▾
The cleanest month of 2022 was March (median AQI 55, 0 days above 100) and the worst was August (median 122, 25 days above 100, peak 172).
Was 2022 a good or bad year for Visalia's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2022 ranks 5th cleanest by days above AQI 100. 2022's median of 77 is above the area's typical annual median of 71.
Visalia month by month in 2022
Visalia air quality month by month, 2022 (Visalia-Porterville, CA, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 82 | 10 | 158 | PM2.5 |
| February | 28 | 75 | 0 | 92 | PM2.5 |
| Marchcleanest | 31 | 55 | 0 | 71 | PM2.5 |
| April | 30 | 55 | 1 | 101 | O3 |
| May | 31 | 71 | 5 | 143 | O3 |
| June | 30 | 90 | 12 | 133 | O3 |
| July | 31 | 115 | 21 | 154 | O3 |
| Augustworst | 31 | 122 | 25 | 172 | O3 |
| September | 30 | 105 | 17 | 182 | O3 |
| October | 31 | 100 | 15 | 147 | O3 |
| November | 30 | 80 | 6 | 133 | PM2.5 |
| December | 31 | 67 | 2 | 108 | PM2.5 |
How 2022 compares
Among the 7 years EPA has published for the area (2019–2025), 2022 ranks 5th cleanest by days above AQI 100.
2022's median of 77 is above the area's typical annual median of 71.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Visalia
The latest EPA AirNow observation puts Visalia's AQI at 57 (PM10). The figures above are multi-year annual 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.