Ulm Seasonal Pollution
Ulm usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in May. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Baden-Württemberg, Germany.
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Average EPA AQI
44
Rank 62 of 297 cities by average AQI
PM2.5
10.4
ug/m3 annualized city average
Seasonality
November
Cleanest: May
Health indicator
0.5
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Ulm
55
38
54
33
29
39
34
38
40
51
60
59
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Ulm, the current global analytics build covers 327 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.