How Chamonix-Mont-Blanc's climate has changed

Based on long-term climate records. Year-to-year weather always varies; what this page shows is the longer-term shift underneath it.

Methodology & sources

Temperature — 1991–2020 normals computed from 30 years of daily observations at Chamonix, a weather station, inside the city. The underlying daily records come from NOAA's global station network.

How we build these numbers →