Fresno Air Quality in November
Across 2019–2025, Fresno's November air quality had a median AQI of 76 (Moderate) over 210 monitored days in the Fresno, CA area. 16.2% of November days (34 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 89.0% of days. The cleanest November on record here was 2025 (median AQI 62, 0 days above 100) and the worst was 2021 (median 88, 10 days above 100, peak AQI 145).
- Good: 14.3%
- Moderate: 69.5%
- Unhealthy for Sensitive Groups: 15.2%
- Unhealthy or worse: 1.0%
Extra Protection for Fresno Homes
Air quality in Fresno is moderate (AQI 69), 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 is the air in Fresno in November?
Moderate on a typical day: median AQI 76 across 2019–2025, with 16.2% of November days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓14.3% of November days were Good (AQI 0–50), 69.5% Moderate (51–100).
- ✓34 days of 210 reached AQI 101+; the November peak was 155.
- ✓Best November: 2025; worst November: 2021.
Frequently asked questions
What is the air quality like in Fresno in November?▾
Across 2019–2025, the median daily AQI in Fresno in November was 76 (Moderate). 14.3% of days were Good, 69.5% Moderate, and 16.2% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is November a good time for outdoor exercise in Fresno?▾
A typical November day in Fresno is Moderate (median AQI 76): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 6 of November days (16.2%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Fresno's November air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 89.0% of November days in Fresno. The highest November AQI recorded in 2019–2025 was 155 (Unhealthy), in 2021.
Fresno November air quality, year by year
Fresno November air quality by year (Fresno, CA, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 88 | 4 | 140 | PM2.5 |
| 2020 | 30 | 89 | 9 | 155 | PM2.5 |
| 2021worst | 30 | 88 | 10 | 145 | PM2.5 |
| 2022 | 30 | 84 | 8 | 151 | PM2.5 |
| 2023 | 30 | 73 | 3 | 122 | PM2.5 |
| 2024 | 30 | 64 | 0 | 90 | PM2.5 |
| 2025cleanest | 30 | 62 | 0 | 94 | PM2.5 |
What November air means in Fresno
A typical November day in Fresno is Moderate (median AQI 76): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 6 of November days (16.2%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
November's median AQI of 76 is above Fresno's whole-year median of 67, making it one of the area's dirtier periods. Nationally, the median November AQI across every EPA metro area (92,704 metro-days, 2019–2025) is 39, so Fresno runs above the national November norm; 16.2% of its November days topped AQI 100 versus 0.6% nationally (above average).
November is part of Fresno's fall season (September, October, November); the fall page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Fresno
The latest EPA AirNow observation puts Fresno's AQI at 69 (PM10). The figures above are multi-year month statistics, not today's reading.
View current Fresno air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Fresno, 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.