Whistler Seasonal Pollution
Whistler usually records its highest OpenAQ-derived EPA AQI in August and its cleanest month in May. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in British Columbia, Canada.
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Average EPA AQI
26
Rank 108 of 158 cities by average AQI
PM2.5
5.1
ug/m3 annualized city average
Seasonality
August
Cleanest: May
Health indicator
0.2
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Whistler
25
32
28
17
11
13
31
44
29
19
25
34
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Whistler, the current global analytics build covers 367 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.