Chamonix-Mont-Blanc Seasonal Pollution
Chamonix-Mont-Blanc usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in May. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Auvergne-Rhone-Alpes, France.
Search city analytics
Average EPA AQI
14
Rank 223 of 272 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
December
Cleanest: May
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Chamonix-Mont-Blanc
16
17
13
13
7
14
12
14
9
13
16
20
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Chamonix-Mont-Blanc, the current global analytics build covers 334 daily rows from 2024-01-02 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.