Winterswijk Seasonal Pollution
Winterswijk usually records its highest OpenAQ-derived EPA AQI in March and its cleanest month in April. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Gelderland, Netherlands.
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Average EPA AQI
60
Rank 9 of 71 cities by average AQI
PM2.5
16.2
ug/m3 annualized city average
Seasonality
March
Cleanest: April
Health indicator
0.7
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Winterswijk
66
60
70
36
69
55
50
60
62
60
70
68
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Winterswijk, the current global analytics build covers 364 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.