Chicoutimi Seasonal Pollution
Chicoutimi usually records its highest OpenAQ-derived EPA AQI in August and its cleanest month in November. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Quebec, Canada.
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Average EPA AQI
42
Rank 17 of 158 cities by average AQI
PM2.5
9.5
ug/m3 annualized city average
Seasonality
August
Cleanest: November
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Chicoutimi
30
39
35
36
48
54
54
63
51
33
25
35
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Chicoutimi, the current global analytics build covers 366 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.