Medellín Seasonal Pollution
Medellín usually records its highest OpenAQ-derived EPA AQI in March and its cleanest month in June. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Antioquia, Colombia.
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Average EPA AQI
75
Rank 3 of 13 cities by average AQI
PM2.5
22.2
ug/m3 annualized city average
Seasonality
March
Cleanest: June
Health indicator
1.0
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Medellín
78
75
96
83
67
65
67
71
76
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-
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What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Medellín, the current global analytics build covers 248 daily rows from 2024-01-01 to 2024-09-05. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.