Vercelli Seasonal Pollution
Vercelli usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in March. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Piedmont, Italy.
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Average EPA AQI
42
Rank 70 of 132 cities by average AQI
PM2.5
16.8
ug/m3 annualized city average
Seasonality
November
Cleanest: March
Health indicator
0.8
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Vercelli
35
35
16
16
22
38
55
52
48
51
88
83
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Vercelli, the current global analytics build covers 226 daily rows from 2024-01-01 to 2024-12-30. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.