Norfolk Air Quality in Fall
Across 2019–2025, Norfolk's fall (September–November) air quality had a median AQI of 37 (Good) over 637 monitored days in the Virginia Beach-Norfolk-Newport News, VA-NC area. 0.0% of fall days (0 of 637) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 56.8% of days. The cleanest fall on record here was 2020 (median AQI 32, 0 days above 100) and the worst was 2022 (median 40, 0 days above 100, peak AQI 67).
- Good: 81.6%
- Moderate: 18.4%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
Extra Protection for Norfolk Homes
Air quality in Norfolk is moderate (AQI 61), with fine particles (PM2.5) 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 Norfolk in fall?
Good on a typical day: median AQI 37 across 2019–2025, with 0.0% of fall days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓81.6% of fall days were Good (AQI 0–50), 18.4% Moderate (51–100).
- ✓0 days of 637 reached AQI 101+; the fall peak was 80.
- ✓Cleanest month: October; worst month: September.
Frequently asked questions
What is the air quality like in Norfolk in fall?▾
Across 2019–2025, the median daily AQI in Norfolk in fall was 37 (Good). 81.6% of days were Good, 18.4% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 637 monitored days in EPA's Air Quality System.
Is fall a good time for outdoor exercise in Norfolk?▾
A typical fall day in Norfolk sits in the Good range (median AQI 37), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of fall days reached AQI 101+ in 2019–2025.
Which pollutant causes Norfolk's fall air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 56.8% of fall days in Norfolk. The highest fall AQI recorded in 2019–2025 was 80 (Moderate), in 2022.
Norfolk fall air quality, year by year
Norfolk fall air quality by year (Virginia Beach-Norfolk-Newport News, VA-NC, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 91 | 40 | 0 | 69 | O3 |
| 2020cleanest | 91 | 32 | 0 | 74 | PM2.5 |
| 2021 | 91 | 39 | 0 | 64 | PM2.5 |
| 2022worst | 91 | 40 | 0 | 67 | PM2.5 |
| 2023 | 91 | 38 | 0 | 74 | PM2.5 |
| 2024 | 91 | 38 | 0 | 71 | PM2.5 |
| 2025 | 91 | 36 | 0 | 80 | O3 |
What fall air means in Norfolk
A typical fall day in Norfolk sits in the Good range (median AQI 37), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of fall days reached AQI 101+ in 2019–2025.
Fall's median AQI of 37 is below Norfolk's whole-year median of 42, making it one of the area's cleaner periods. Nationally, the median Fall AQI across every EPA metro area (296,275 metro-days, 2019–2025) is 40, so Norfolk runs in line with the national Fall norm; 0.0% of its Fall days topped AQI 100 versus 1.5% nationally (below average).
Within the season, October is the cleanest month (median AQI 34, 0.0% of days above 100) and September the worst (median 40, 0.0% above 100).
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Norfolk
The latest EPA AirNow observation puts Norfolk's AQI at 61 (PM2.5). The figures above are multi-year season statistics, not today's reading.
View current Norfolk air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Virginia Beach-Norfolk-Newport News, VA-NC), 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.