Charleston, WV Air Quality in July
Across 2019–2025, Charleston's July air quality had a median AQI of 47 (Good) over 217 monitored days in the Charleston, WV area. 0.0% of July days (0 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 66.8% of days. The cleanest July on record here was 2019 (median AQI 44, 0 days above 100) and the worst was 2021 (median 59, 0 days above 100, peak AQI 97).
- Good: 58.5%
- Moderate: 41.5%
- 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
As an Amazon Associate, we earn from qualifying purchases.
How is the air in Charleston in July?
Good on a typical day: median AQI 47 across 2019–2025, with 0.0% of July days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓58.5% of July days were Good (AQI 0–50), 41.5% Moderate (51–100).
- ✓0 days of 217 reached AQI 101+; the July peak was 97.
- ✓Best July: 2019; worst July: 2021.
Frequently asked questions
What is the air quality like in Charleston in July?▾
Across 2019–2025, the median daily AQI in Charleston in July was 47 (Good). 58.5% of days were Good, 41.5% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.
Is July a good time for outdoor exercise in Charleston?▾
A typical July day in Charleston sits in the Good range (median AQI 47), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of July days reached AQI 101+ in 2019–2025.
Which pollutant causes Charleston's July air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 66.8% of July days in Charleston. The highest July AQI recorded in 2019–2025 was 97 (Moderate), in 2021.
Charleston July air quality, year by year
Charleston July air quality by year (Charleston, WV, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 31 | 44 | 0 | 90 | O3 |
| 2020 | 31 | 48 | 0 | 74 | PM2.5 |
| 2021worst | 31 | 59 | 0 | 97 | PM2.5 |
| 2022 | 31 | 46 | 0 | 61 | PM2.5 |
| 2023 | 31 | 44 | 0 | 80 | PM2.5 |
| 2024 | 31 | 51 | 0 | 63 | PM2.5 |
| 2025 | 31 | 46 | 0 | 60 | PM2.5 |
What July air means in Charleston
A typical July day in Charleston sits in the Good range (median AQI 47), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of July days reached AQI 101+ in 2019–2025.
July's median AQI of 47 is above Charleston's whole-year median of 41, making it one of the area's dirtier periods. Nationally, the median July AQI across every EPA metro area (103,858 metro-days, 2019–2025) is 47, so Charleston runs in line with the national July norm; 0.0% of its July days topped AQI 100 versus 3.6% nationally (below average).
July is part of Charleston's summer season (June, July, August); the summer page pools all three months.
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 month 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.