Santa Fe Air Quality in April
Across 2019–2025, Santa Fe's April air quality had a median AQI of 49 (Good) over 210 monitored days in the Santa Fe, NM area. 0.0% of April days (0 of 210) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 95.2% of days. The cleanest April on record here was 2020 (median AQI 48, 0 days above 100) and the worst was 2025 (median 52, 0 days above 100, peak AQI 93).
- Good: 61.9%
- Moderate: 38.1%
- 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
As an Amazon Associate, we earn from qualifying purchases.
How is the air in Santa Fe in April?
Good on a typical day: median AQI 49 across 2019–2025, with 0.0% of April days above AQI 100. Ground-level ozone is the main driver.
- ✓61.9% of April days were Good (AQI 0–50), 38.1% Moderate (51–100).
- ✓0 days of 210 reached AQI 101+; the April peak was 98.
- ✓Best April: 2020; worst April: 2025.
Frequently asked questions
What is the air quality like in Santa Fe in April?▾
Across 2019–2025, the median daily AQI in Santa Fe in April was 49 (Good). 61.9% of days were Good, 38.1% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is April a good time for outdoor exercise in Santa Fe?▾
A typical April day in Santa Fe sits in the Good range (median AQI 49), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of April days reached AQI 101+ in 2019–2025.
Which pollutant causes Santa Fe's April air quality problems?▾
Ground-level ozone set the daily AQI on 95.2% of April days in Santa Fe. The highest April AQI recorded in 2019–2025 was 98 (Moderate), in 2025.
Santa Fe April air quality, year by year
Santa Fe April 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 | 49 | 0 | 74 | O3 |
| 2020cleanest | 30 | 48 | 0 | 71 | O3 |
| 2021 | 30 | 48 | 0 | 58 | O3 |
| 2022 | 30 | 50 | 0 | 98 | O3 |
| 2023 | 30 | 50 | 0 | 71 | O3 |
| 2024 | 30 | 50 | 0 | 90 | O3 |
| 2025worst | 30 | 52 | 0 | 93 | O3 |
What April air means in Santa Fe
A typical April day in Santa Fe sits in the Good range (median AQI 49), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of April days reached AQI 101+ in 2019–2025.
April's median AQI of 49 is above Santa Fe's whole-year median of 44, making it one of the area's dirtier periods. Nationally, the median April AQI across every EPA metro area (100,677 metro-days, 2019–2025) is 44, so Santa Fe runs above the national April norm; 0.0% of its April days topped AQI 100 versus 0.7% nationally (about the same).
April 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.