Santa Fe Air Quality in March
Across 2019–2025, Santa Fe's March air quality had a median AQI of 45 (Good) over 216 monitored days in the Santa Fe, NM area. 0.0% of March days (0 of 216) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 94.4% of days. The cleanest March on record here was 2020 (median AQI 44, 0 days above 100) and the worst was 2025 (median 46, 0 days above 100, peak AQI 71).
- Good: 87.5%
- Moderate: 12.5%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
Reduce Indoor Ozone in Santa Fe
Today's main pollutant in Santa Fe is ground-level ozone (AQI 35). 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 Santa Fe in March?
Good on a typical day: median AQI 45 across 2019–2025, with 0.0% of March days above AQI 100. Ground-level ozone is the main driver.
- ✓87.5% of March days were Good (AQI 0–50), 12.5% Moderate (51–100).
- ✓0 days of 216 reached AQI 101+; the March peak was 71.
- ✓Best March: 2020; worst March: 2025.
Frequently asked questions
What is the air quality like in Santa Fe in March?▾
Across 2019–2025, the median daily AQI in Santa Fe in March was 45 (Good). 87.5% of days were Good, 12.5% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 216 monitored days in EPA's Air Quality System.
Is March a good time for outdoor exercise in Santa Fe?▾
A typical March day in Santa Fe sits in the Good range (median AQI 45), 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 Santa Fe's March air quality problems?▾
Ground-level ozone set the daily AQI on 94.4% of March days in Santa Fe. The highest March AQI recorded in 2019–2025 was 71 (Moderate), in 2025.
Santa Fe March air quality, year by year
Santa Fe March air quality by year (Santa Fe, NM, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 45 | 0 | 71 | O3 |
| 2020cleanest | 31 | 44 | 0 | 67 | O3 |
| 2021 | 31 | 45 | 0 | 58 | O3 |
| 2022 | 31 | 46 | 0 | 56 | O3 |
| 2023 | 31 | 44 | 0 | 61 | O3 |
| 2024 | 31 | 44 | 0 | 64 | O3 |
| 2025worst | 31 | 46 | 0 | 71 | O3 |
What March air means in Santa Fe
A typical March day in Santa Fe sits in the Good range (median AQI 45), 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 45 is in line with Santa Fe's whole-year median of 44, 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 Santa Fe 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 Santa Fe's spring season (March, April, May); the spring page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Santa Fe
The latest EPA AirNow observation puts Santa Fe's AQI at 35 (O3). The figures above are multi-year month statistics, not today's reading.
View current Santa Fe air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Santa Fe, NM), 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.