Vancouver Seasonal Pollution
Vancouver usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in April. The page uses OpenAQ-derived daily history for 14 mapped monitoring locations in British Columbia, Canada.
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Average EPA AQI
28
Rank 91 of 158 cities by average AQI
PM2.5
5.3
ug/m3 annualized city average
Seasonality
January
Cleanest: April
Health indicator
0.2
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Vancouver
36
28
27
21
24
22
29
34
32
27
26
27
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Vancouver, the current global analytics build covers 365 daily rows from 2024-01-01 to 2025-01-01. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.