Wetzlar Seasonal Pollution
Wetzlar usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in February. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Hesse, Germany.
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Average EPA AQI
29
Rank 238 of 297 cities by average AQI
PM2.5
8.1
ug/m3 annualized city average
Seasonality
November
Cleanest: February
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Wetzlar
16
9
19
10
10
38
33
40
41
41
45
44
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Wetzlar, the current global analytics build covers 323 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.