Visalia Air Quality in February
Across 2019–2025, Visalia's February air quality had a median AQI of 57 (Moderate) over 198 monitored days in the Visalia-Porterville, CA area. 1.0% of February days (2 of 198) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 79.3% of days. The cleanest February on record here was 2019 (median AQI 38, 0 days above 100) and the worst was 2021 (median 61, 2 days above 100, peak AQI 104).
- Good: 29.8%
- Moderate: 69.2%
- Unhealthy for Sensitive Groups: 1.0%
- Unhealthy or worse: 0.0%
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
As an Amazon Associate, we earn from qualifying purchases.
How is the air in Visalia in February?
Moderate on a typical day: median AQI 57 across 2019–2025, with 1.0% of February days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓29.8% of February days were Good (AQI 0–50), 69.2% Moderate (51–100).
- ✓2 days of 198 reached AQI 101+; the February peak was 104.
- ✓Best February: 2019; worst February: 2021.
Frequently asked questions
What is the air quality like in Visalia in February?▾
Across 2019–2025, the median daily AQI in Visalia in February was 57 (Moderate). 29.8% of days were Good, 69.2% Moderate, and 1.0% reached Unhealthy for Sensitive Groups or worse, based on 198 monitored days in EPA's Air Quality System.
Is February a good time for outdoor exercise in Visalia?▾
A typical February day in Visalia is Moderate (median AQI 57): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 100 of February days (1.0%) 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 February air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 79.3% of February days in Visalia. The highest February AQI recorded in 2019–2025 was 104 (Unhealthy for Sensitive Groups), in 2021.
Visalia February air quality, year by year
Visalia February air quality by year (Visalia-Porterville, CA, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 28 | 38 | 0 | 75 | O3 |
| 2020 | 29 | 64 | 0 | 91 | PM2.5 |
| 2021worst | 28 | 61 | 2 | 104 | PM2.5 |
| 2022 | 28 | 75 | 0 | 92 | PM2.5 |
| 2023 | 28 | 52 | 0 | 78 | PM2.5 |
| 2024 | 29 | 42 | 0 | 81 | PM2.5 |
| 2025 | 28 | 55 | 0 | 85 | PM2.5 |
What February air means in Visalia
A typical February day in Visalia is Moderate (median AQI 57): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 100 of February days (1.0%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
February's median AQI of 57 is below Visalia's whole-year median of 71, making it one of the area's cleaner periods. Nationally, the median February AQI across every EPA metro area (87,428 metro-days, 2019–2025) is 41, so Visalia runs above the national February norm; 1.0% of its February days topped AQI 100 versus 0.4% nationally (about the same).
February is part of Visalia's winter season (December, January, February); the winter 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.