Tucson Air Quality in February
Across 2019–2025, Tucson's February air quality had a median AQI of 47 (Good) over 198 monitored days in the Tucson, AZ area. 1.0% of February days (2 of 198) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 42.9% of days. The cleanest February on record here was 2019 (median AQI 44, 0 days above 100) and the worst was 2022 (median 48, 1 day above 100, peak AQI 122).
- Good: 67.2%
- Moderate: 31.8%
- Unhealthy for Sensitive Groups: 1.0%
- Unhealthy or worse: 0.0%
Reduce Indoor Ozone in Tucson
Today's main pollutant in Tucson 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 Tucson in February?
Good on a typical day: median AQI 47 across 2019–2025, with 1.0% of February days above AQI 100. Ground-level ozone is the main driver.
- ✓67.2% of February days were Good (AQI 0–50), 31.8% Moderate (51–100).
- ✓2 days of 198 reached AQI 101+; the February peak was 122.
- ✓Best February: 2019; worst February: 2022.
Frequently asked questions
What is the air quality like in Tucson in February?▾
Across 2019–2025, the median daily AQI in Tucson in February was 47 (Good). 67.2% of days were Good, 31.8% Moderate, and 1.0% reached Unhealthy for Sensitive Groups or worse, based on 198 monitored days in EPA's Air Quality System.
Is February a good time for outdoor exercise in Tucson?▾
A typical February day in Tucson sits in the Good range (median AQI 47), so running, cycling and children's outdoor play are fine for everyone on most days; about 1 day in 100 of February days (1.0%) reached AQI 101+ in 2019–2025.
Which pollutant causes Tucson's February air quality problems?▾
Ground-level ozone set the daily AQI on 42.9% of February days in Tucson. The highest February AQI recorded in 2019–2025 was 122 (Unhealthy for Sensitive Groups), in 2022.
Tucson February air quality, year by year
Tucson February air quality by year (Tucson, AZ, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 28 | 44 | 0 | 51 | O3 |
| 2020 | 29 | 44 | 1 | 103 | O3 |
| 2021 | 28 | 53 | 0 | 90 | PM10 |
| 2022worst | 28 | 48 | 1 | 122 | O3 |
| 2023 | 28 | 49 | 0 | 100 | PM2.5 |
| 2024 | 29 | 44 | 0 | 56 | O3 |
| 2025 | 28 | 52 | 0 | 67 | PM2.5 |
What February air means in Tucson
A typical February day in Tucson sits in the Good range (median AQI 47), so running, cycling and children's outdoor play are fine for everyone on most days; about 1 day in 100 of February days (1.0%) reached AQI 101+ in 2019–2025.
February's median AQI of 47 is below Tucson's whole-year median of 54, making it one of the area's cleaner periods. Nationally, the median February AQI across every EPA metro area (87,428 metro-days, 2019–2025) is 41, so Tucson runs above the national February norm; 1.0% of its February days topped AQI 100 versus 0.4% nationally (about the same).
February is part of Tucson's winter season (December, January, February); the winter page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Tucson
The latest EPA AirNow observation puts Tucson's AQI at 35 (O3). The figures above are multi-year month statistics, not today's reading.
View current Tucson air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Tucson, AZ), 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.