Winston-Salem Air Quality in June
Across 2019–2025, Winston-Salem's June air quality had a median AQI of 54 (Moderate) over 210 monitored days in the Winston-Salem, NC area. 2.4% of June days (5 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 51.0% of days. The cleanest June on record here was 2021 (median AQI 43, 0 days above 100) and the worst was 2023 (median 68, 4 days above 100, peak AQI 154).
- Good: 38.6%
- Moderate: 59.0%
- Unhealthy for Sensitive Groups: 1.9%
- Unhealthy or worse: 0.5%
Extra Protection for Winston-Salem Homes
Air quality in Winston-Salem is moderate (AQI 52), 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 is the air in Winston-Salem in June?
Moderate on a typical day: median AQI 54 across 2019–2025, with 2.4% of June days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓38.6% of June days were Good (AQI 0–50), 59.0% Moderate (51–100).
- ✓5 days of 210 reached AQI 101+; the June peak was 154.
- ✓Best June: 2021; worst June: 2023.
Frequently asked questions
What is the air quality like in Winston-Salem in June?▾
Across 2019–2025, the median daily AQI in Winston-Salem in June was 54 (Moderate). 38.6% of days were Good, 59.0% Moderate, and 2.4% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is June a good time for outdoor exercise in Winston-Salem?▾
A typical June day in Winston-Salem is Moderate (median AQI 54): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 42 of June days (2.4%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Winston-Salem's June air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 51.0% of June days in Winston-Salem. The highest June AQI recorded in 2019–2025 was 154 (Unhealthy), in 2023.
Winston-Salem June air quality, year by year
Winston-Salem June air quality by year (Winston-Salem, NC, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 53 | 0 | 74 | O3 |
| 2020 | 30 | 50 | 0 | 96 | PM2.5 |
| 2021cleanest | 30 | 43 | 0 | 100 | O3 |
| 2022 | 30 | 58 | 0 | 84 | O3 |
| 2023worst | 30 | 68 | 4 | 154 | PM2.5 |
| 2024 | 30 | 57 | 1 | 122 | O3 |
| 2025 | 30 | 56 | 0 | 80 | PM2.5 |
What June air means in Winston-Salem
A typical June day in Winston-Salem is Moderate (median AQI 54): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 42 of June days (2.4%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
June's median AQI of 54 is above Winston-Salem's whole-year median of 50, making it one of the area's dirtier periods. Nationally, the median June AQI across every EPA metro area (100,635 metro-days, 2019–2025) is 46, so Winston-Salem runs above the national June norm; 2.4% of its June days topped AQI 100 versus 3.7% nationally (below average).
June is part of Winston-Salem's summer season (June, July, August); the summer page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Winston-Salem
The latest EPA AirNow observation puts Winston-Salem's AQI at 52 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Winston-Salem air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Winston-Salem, NC), 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.