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Umeå Seasonal Pollution

Umeå usually records its highest OpenAQ-derived EPA AQI in May and its cleanest month in November. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Västerbotten, Sweden.

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Average EPA AQI

25

Rank 17 of 31 cities by average AQI

PM2.5

5.1

ug/m3 annualized city average

Seasonality

May

Cleanest: November

Health indicator

0.2

cigarette-equivalent per day

Yearly EPA AQI trend

0501002024Umeå

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec
Umeå
16
18
31
33
39
32
31
29
23
23
5
9

What this seasonality page measures

Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.

For Umeå, the current global analytics build covers 274 daily rows from 2024-01-01 to 2024-12-31. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.

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