Coaticook Seasonal Pollution
Coaticook usually records its highest OpenAQ-derived EPA AQI in August and its cleanest month in March. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Quebec, Canada.
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Average EPA AQI
23
Rank 127 of 158 cities by average AQI
PM2.5
4.4
ug/m3 annualized city average
Seasonality
August
Cleanest: March
Health indicator
0.2
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Coaticook
18
19
13
14
21
32
37
41
29
22
15
15
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Coaticook, 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.