Vancouver Air Quality in July
Across 2019–2025, Vancouver's July air quality had a median AQI of 39 (Good) over 217 monitored days in the Portland-Vancouver-Hillsboro, OR-WA area. 1.8% of July days (4 of 217) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 79.7% of days. The cleanest July on record here was 2019 (median AQI 36, 0 days above 100) and the worst was 2024 (median 43, 2 days above 100, peak AQI 119).
- Good: 80.2%
- Moderate: 18.0%
- Unhealthy for Sensitive Groups: 1.8%
- Unhealthy or worse: 0.0%
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How is the air in Vancouver in July?
Good on a typical day: median AQI 39 across 2019–2025, with 1.8% of July days above AQI 100. Ground-level ozone is the main driver.
- ✓80.2% of July days were Good (AQI 0–50), 18.0% Moderate (51–100).
- ✓4 days of 217 reached AQI 101+; the July peak was 133.
- ✓Best July: 2019; worst July: 2024.
Frequently asked questions
What is the air quality like in Vancouver in July?▾
Across 2019–2025, the median daily AQI in Vancouver in July was 39 (Good). 80.2% of days were Good, 18.0% Moderate, and 1.8% 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 Vancouver?▾
A typical July day in Vancouver sits in the Good range (median AQI 39), so running, cycling and children's outdoor play are fine for everyone on most days; about 1 day in 56 of July days (1.8%) reached AQI 101+ in 2019–2025.
Which pollutant causes Vancouver's July air quality problems?▾
Ground-level ozone set the daily AQI on 79.7% of July days in Vancouver. The highest July AQI recorded in 2019–2025 was 133 (Unhealthy for Sensitive Groups), in 2024.
Vancouver July air quality, year by year
Vancouver July air quality by year (Portland-Vancouver-Hillsboro, OR-WA, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 31 | 36 | 0 | 61 | O3 |
| 2020 | 31 | 37 | 1 | 119 | O3 |
| 2021 | 31 | 38 | 0 | 87 | O3 |
| 2022 | 31 | 40 | 1 | 133 | O3 |
| 2023 | 31 | 42 | 0 | 93 | O3 |
| 2024worst | 31 | 43 | 2 | 119 | O3 |
| 2025 | 31 | 39 | 0 | 61 | O3 |
What July air means in Vancouver
A typical July day in Vancouver sits in the Good range (median AQI 39), so running, cycling and children's outdoor play are fine for everyone on most days; about 1 day in 56 of July days (1.8%) reached AQI 101+ in 2019–2025.
July's median AQI of 39 is in line with Vancouver's whole-year median of 41, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median July AQI across every EPA metro area (103,858 metro-days, 2019–2025) is 47, so Vancouver runs below the national July norm; 1.8% of its July days topped AQI 100 versus 3.6% nationally (below average).
July is part of Vancouver's summer season (June, July, August); the summer page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Vancouver
The latest EPA AirNow observation puts Vancouver's AQI at 28 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Vancouver air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Portland-Vancouver-Hillsboro, OR-WA), 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.