Steyr Seasonal Pollution
Steyr usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in May. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Oberösterreich, Austria.
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Average EPA AQI
39
Rank 35 of 68 cities by average AQI
PM2.5
8.8
ug/m3 annualized city average
Seasonality
November
Cleanest: May
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Steyr
36
23
39
24
21
31
38
53
44
55
57
47
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Steyr, the current global analytics build covers 351 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.