Norfolk Air Quality in March
Across 2019–2025, Norfolk's March air quality had a median AQI of 42 (Good) over 217 monitored days in the Virginia Beach-Norfolk-Newport News, VA-NC area. 0.0% of March days (0 of 217) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 72.8% of days. The cleanest March on record here was 2020 (median AQI 40, 0 days above 100) and the worst was 2019 (median 44, 0 days above 100, peak AQI 52).
- Good: 84.8%
- Moderate: 15.2%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
Reduce Indoor Ozone in Norfolk
Today's main pollutant in Norfolk is ground-level ozone (AQI 31). 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 Norfolk in March?
Good on a typical day: median AQI 42 across 2019–2025, with 0.0% of March days above AQI 100. Ground-level ozone is the main driver.
- ✓84.8% of March days were Good (AQI 0–50), 15.2% Moderate (51–100).
- ✓0 days of 217 reached AQI 101+; the March peak was 86.
- ✓Best March: 2020; worst March: 2019.
Frequently asked questions
What is the air quality like in Norfolk in March?▾
Across 2019–2025, the median daily AQI in Norfolk in March was 42 (Good). 84.8% of days were Good, 15.2% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.
Is March a good time for outdoor exercise in Norfolk?▾
A typical March day in Norfolk sits in the Good range (median AQI 42), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of March days reached AQI 101+ in 2019–2025.
Which pollutant causes Norfolk's March air quality problems?▾
Ground-level ozone set the daily AQI on 72.8% of March days in Norfolk. The highest March AQI recorded in 2019–2025 was 86 (Moderate), in 2019.
Norfolk March air quality, year by year
Norfolk March 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 |
|---|---|---|---|---|---|
| 2019worst | 31 | 44 | 0 | 52 | O3 |
| 2020cleanest | 31 | 40 | 0 | 62 | O3 |
| 2021 | 31 | 41 | 0 | 71 | O3 |
| 2022 | 31 | 42 | 0 | 55 | O3 |
| 2023 | 31 | 43 | 0 | 70 | O3 |
| 2024 | 31 | 40 | 0 | 86 | O3 |
| 2025 | 31 | 43 | 0 | 55 | O3 |
What March air means in Norfolk
A typical March day in Norfolk sits in the Good range (median AQI 42), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of March days reached AQI 101+ in 2019–2025.
March's median AQI of 42 is in line with Norfolk's whole-year median of 42, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median March AQI across every EPA metro area (102,455 metro-days, 2019–2025) is 42, so Norfolk runs in line with the national March norm; 0.0% of its March days topped AQI 100 versus 0.4% nationally (about the same).
March is part of Norfolk's spring season (March, April, May); the spring page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Norfolk
The latest EPA AirNow observation puts Norfolk's AQI at 31 (O3). The figures above are multi-year month 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.