Providence Air Quality in 2021
In 2021, Providence's air quality (Providence-Warwick, RI-MA area) had a median daily AQI of 47 (Good) across 365 monitored days. 4 days (1.1%) reached Unhealthy for Sensitive Groups or worse, 213 were Good, and the year's peak AQI was 147 (Unhealthy for Sensitive Groups). Fine particulate matter (PM2.5) set the daily AQI on 225 of those days. The cleanest month of 2021 was November (median AQI 37, 0 days above 100) and the worst was June (median 55, 2 days above 100, peak 140).
- Good: 58.4%
- Moderate: 40.5%
- Unhealthy for Sensitive Groups: 1.1%
- Unhealthy or worse: 0.0%
Improve Indoor Air Quality
Even with good outdoor air in Providence, indoor PM2.5, dust and allergens build up. A True-HEPA purifier keeps a bedroom or office consistently clean.
Recommended: Levoit Core 400S — True HEPA · CADR ~141 CFM · rooms up to 219 sq ft
As an Amazon Associate, we earn from qualifying purchases.
How was Providence's air quality in 2021?
Good on a typical day: median AQI 47, with 4 days above AQI 100 out of 365 monitored — the 3rd cleanest of 7 years on record for the area.
- ✓Peak AQI in 2021: 147 (Unhealthy for Sensitive Groups).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 225 days.
- ✓Cleanest month: November; worst: June.
Frequently asked questions
What was the average AQI in Providence in 2021?▾
EPA's Air Quality System puts Providence's (Providence-Warwick, RI-MA) median daily AQI for 2021 at 47, which is Good. 4 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 147.
Which month had the worst air quality in Providence in 2021?▾
The cleanest month of 2021 was November (median AQI 37, 0 days above 100) and the worst was June (median 55, 2 days above 100, peak 140).
Was 2021 a good or bad year for Providence's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2021 ranks 3rd cleanest by days above AQI 100. 2021's median of 47 is in line with the area's typical annual median of 47.
Providence month by month in 2021
Providence air quality month by month, 2021 (Providence-Warwick, RI-MA, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 39 | 0 | 81 | PM2.5 |
| February | 28 | 47 | 0 | 67 | PM2.5 |
| March | 31 | 45 | 0 | 80 | O3 |
| April | 30 | 43 | 0 | 87 | O3 |
| May | 31 | 48 | 0 | 93 | PM2.5 |
| Juneworst | 30 | 55 | 2 | 140 | PM2.5 |
| July | 31 | 55 | 1 | 121 | PM2.5 |
| August | 31 | 53 | 1 | 147 | PM2.5 |
| September | 30 | 44 | 0 | 64 | PM2.5 |
| October | 31 | 41 | 0 | 56 | PM2.5 |
| Novembercleanest | 30 | 37 | 0 | 69 | PM2.5 |
| December | 31 | 53 | 0 | 64 | PM2.5 |
How 2021 compares
Among the 7 years EPA has published for the area (2019–2025), 2021 ranks 3rd cleanest by days above AQI 100.
2021's median of 47 is in line with the area's typical annual median of 47.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Providence
The latest EPA AirNow observation puts Providence's AQI at 36 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Providence air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Providence-Warwick, RI-MA), 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.