Gliwice Seasonal Pollution
Gliwice usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in June. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Śląskie, Poland.
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Average EPA AQI
63
Rank 38 of 155 cities by average AQI
PM2.5
25.5
ug/m3 annualized city average
Seasonality
January
Cleanest: June
Health indicator
1.2
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Gliwice
117
102
94
67
52
21
22
38
47
47
56
89
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Gliwice, the current global analytics build covers 366 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.