What is the air quality like in Visalia?
Visalia has an average AQI of 90, which falls in the "Moderate" category. About 20% of days have Good air quality, 38% are Moderate, and 26% are Unhealthy for Sensitive Groups. The primary pollutant is PM2.5.
What is the main pollutant in Visalia?
The primary pollutant in Visalia is PM2.5. The city's average PM2.5 level is 17.2 μg/m³ (above the EPA annual standard of 12 μg/m³). Average ozone levels are 60 ppb. Major pollution sources include agriculture, dairy farms, wildfires.
Is Visalia affected by wildfire smoke?
Visalia has a very high wildfire risk rating. Wildfire smoke frequently degrades air quality, sometimes pushing AQI into unhealthy ranges for extended periods.
How many good air quality days does Visalia have?
Approximately 20% of days in Visalia have Good air quality (AQI 0-50). This is below the national average, meaning residents frequently experience reduced air quality.
When is pollen season in Visalia's state (CA)?
Pollen seasons in CA include: Grass Pollen (April–July, High severity); Tree Pollen (February–May, High severity); Weed Pollen (July–November, Moderate severity); Mold Spores (Year-round–Year-round, Moderate severity). Allergy sufferers should monitor pollen counts during these periods and consider staying indoors on high-pollen days, especially during morning hours when counts peak.