Bakersfield Air Quality in November
Across 2019–2025, Bakersfield's November air quality had a median AQI of 81 (Moderate) over 210 monitored days in the Bakersfield, CA area. 25.8% of November days (54 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 81.0% of days. The cleanest November on record here was 2024 (median AQI 66, 1 day above 100) and the worst was 2021 (median 101, 15 days above 100, peak AQI 154).
- Good: 11.0%
- Moderate: 63.3%
- Unhealthy for Sensitive Groups: 22.9%
- Unhealthy or worse: 2.9%
Reduce Indoor Ozone in Bakersfield
Today's main pollutant in Bakersfield is ground-level ozone (AQI 74). Important: standard HEPA filters do NOT remove ozone — only a purifier with a substantial activated-carbon bed adsorbs it. The biggest wins are cutting indoor sources (gas appliances, certain "ionizer" purifiers) and ventilating when outdoor ozone is low (early morning). A high-carbon unit helps with the gases and VOCs that linger indoors.
Recommended: Levoit Core 300 — True HEPA + activated carbon · CADR ~141 CFM · rooms up to 219 sq ft
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How is the air in Bakersfield in November?
Moderate on a typical day: median AQI 81 across 2019–2025, with 25.8% of November days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓11.0% of November days were Good (AQI 0–50), 63.3% Moderate (51–100).
- ✓54 days of 210 reached AQI 101+; the November peak was 200.
- ✓Best November: 2024; worst November: 2021.
Frequently asked questions
What is the air quality like in Bakersfield in November?▾
Across 2019–2025, the median daily AQI in Bakersfield in November was 81 (Moderate). 11.0% of days were Good, 63.3% Moderate, and 25.8% 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 Bakersfield?▾
A typical November day in Bakersfield is Moderate (median AQI 81): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 4 of November days (25.8%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Bakersfield's November air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 81.0% of November days in Bakersfield. The highest November AQI recorded in 2019–2025 was 200 (Unhealthy), in 2021.
Bakersfield November air quality, year by year
Bakersfield November air quality by year (Bakersfield, CA, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 95 | 10 | 193 | O3 |
| 2020 | 30 | 94 | 12 | 162 | PM2.5 |
| 2021worst | 30 | 101 | 15 | 154 | PM2.5 |
| 2022 | 30 | 96 | 13 | 130 | PM2.5 |
| 2023 | 30 | 68 | 1 | 158 | PM2.5 |
| 2024cleanest | 30 | 66 | 1 | 117 | PM2.5 |
| 2025 | 30 | 69 | 2 | 200 | PM2.5 |
What November air means in Bakersfield
A typical November day in Bakersfield is Moderate (median AQI 81): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 4 of November days (25.8%) 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 81 is above Bakersfield's whole-year median of 72, 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 Bakersfield runs above the national November norm; 25.8% of its November days topped AQI 100 versus 0.6% nationally (above average).
November is part of Bakersfield's fall season (September, October, November); the fall page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Bakersfield
The latest EPA AirNow observation puts Bakersfield's AQI at 74 (O3). The figures above are multi-year month statistics, not today's reading.
View current Bakersfield air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Bakersfield, 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.