Charleston, WV Air Quality in 2024
In 2024, Charleston's air quality (Charleston, WV area) had a median daily AQI of 40 (Good) across 364 monitored days. 0 days (0.0%) reached Unhealthy for Sensitive Groups or worse, 283 were Good, and the year's peak AQI was 90 (Moderate). Fine particulate matter (PM2.5) set the daily AQI on 188 of those days. The cleanest month of 2024 was January (median AQI 28, 0 days above 100) and the worst was July (median 51, 0 days above 100, peak 63).
- Good: 77.7%
- Moderate: 22.3%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
Extra Protection for Charleston Homes
Air quality in Charleston is moderate (AQI 55), with fine particles (PM2.5) the main concern. A True-HEPA purifier gives sensitive groups — kids, seniors and anyone with asthma or allergies — cleaner air indoors on days like today.
Recommended: Coway AP-1512HH Mighty — True HEPA + carbon · CADR ~246 CFM · rooms up to 361 sq ft
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How was Charleston's air quality in 2024?
Good on a typical day: median AQI 40, with 0 days above AQI 100 out of 364 monitored — the 2nd cleanest of 7 years on record for the area.
- ✓Peak AQI in 2024: 90 (Moderate).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 188 days.
- ✓Cleanest month: January; worst: July.
Frequently asked questions
What was the average AQI in Charleston in 2024?▾
EPA's Air Quality System puts Charleston's (Charleston, WV) median daily AQI for 2024 at 40, 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 2024?▾
The cleanest month of 2024 was January (median AQI 28, 0 days above 100) and the worst was July (median 51, 0 days above 100, peak 63).
Was 2024 a good or bad year for Charleston's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2024 ranks 2nd cleanest by days above AQI 100. 2024's median of 40 is in line with the area's typical annual median of 41.
Charleston month by month in 2024
Charleston air quality month by month, 2024 (Charleston, WV, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| Januarycleanest | 31 | 28 | 0 | 64 | O3 |
| February | 29 | 31 | 0 | 66 | O3 |
| March | 31 | 32 | 0 | 61 | PM2.5 |
| April | 30 | 43 | 0 | 56 | PM2.5 |
| May | 31 | 40 | 0 | 64 | O3 |
| June | 30 | 42 | 0 | 67 | PM2.5 |
| Julyworst | 31 | 51 | 0 | 63 | PM2.5 |
| August | 31 | 46 | 0 | 90 | O3 |
| September | 30 | 39 | 0 | 59 | O3 |
| October | 29 | 42 | 0 | 57 | PM2.5 |
| November | 30 | 35 | 0 | 83 | PM2.5 |
| December | 31 | 34 | 0 | 59 | PM2.5 |
How 2024 compares
Among the 7 years EPA has published for the area (2019–2025), 2024 ranks 2nd cleanest by days above AQI 100.
2024's median of 40 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 55 (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.