Charleston, WV Air Quality in 2022
In 2022, Charleston's air quality (Charleston, WV area) had a median daily AQI of 41 (Good) across 353 monitored days. 0 days (0.0%) reached Unhealthy for Sensitive Groups or worse, 253 were Good, and the year's peak AQI was 90 (Moderate). Fine particulate matter (PM2.5) set the daily AQI on 225 of those days. The cleanest month of 2022 was September (median AQI 32, 0 days above 100) and the worst was June (median 58, 0 days above 100, peak 87).
- Good: 71.7%
- Moderate: 28.3%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
Improve Indoor Air Quality
Even with good outdoor air in Charleston, 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 Charleston's air quality in 2022?
Good on a typical day: median AQI 41, with 0 days above AQI 100 out of 353 monitored — the 4th cleanest of 7 years on record for the area.
- ✓Peak AQI in 2022: 90 (Moderate).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 225 days.
- ✓Cleanest month: September; worst: June.
Frequently asked questions
What was the average AQI in Charleston in 2022?▾
EPA's Air Quality System puts Charleston's (Charleston, WV) median daily AQI for 2022 at 41, which is Good. 0 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 90.
Which month had the worst air quality in Charleston in 2022?▾
The cleanest month of 2022 was September (median AQI 32, 0 days above 100) and the worst was June (median 58, 0 days above 100, peak 87).
Was 2022 a good or bad year for Charleston's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2022 ranks 4th cleanest by days above AQI 100. 2022's median of 41 is in line with the area's typical annual median of 41.
Charleston month by month in 2022
Charleston air quality month by month, 2022 (Charleston, WV, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 50 | 0 | 63 | PM2.5 |
| February | 28 | 52 | 0 | 61 | PM2.5 |
| March | 31 | 43 | 0 | 90 | O3 |
| April | 23 | 39 | 0 | 54 | O3 |
| May | 31 | 44 | 0 | 74 | O3 |
| Juneworst | 30 | 58 | 0 | 87 | PM2.5 |
| July | 31 | 46 | 0 | 61 | PM2.5 |
| August | 31 | 38 | 0 | 61 | O3 |
| Septembercleanest | 29 | 32 | 0 | 56 | PM2.5 |
| October | 27 | 32 | 0 | 58 | PM2.5 |
| November | 30 | 34 | 0 | 53 | PM2.5 |
| December | 31 | 32 | 0 | 53 | PM2.5 |
How 2022 compares
Among the 7 years EPA has published for the area (2019–2025), 2022 ranks 4th cleanest by days above AQI 100.
2022's median of 41 is in line with the area's typical annual median of 41.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Charleston
The latest EPA AirNow observation puts Charleston's AQI at 32 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Charleston air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Charleston, WV), 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.