Chamonix Snow Conditions Overview
Chamonix in French Alps, France sits at 3,842m (12,606ft) elevation and averages 469cm of annual snowfall based on 10 years of historical data (2015-2025). During the ski season, Chamonix receives approximately 442cm of snow. The best month for powder is January, averaging 103.2cm of snowfall with a 48% powder probability. The highest chance of fresh powder (15cm+ in any given week) occurs in December and January at 51%.
- Annual Snowfall
- 469cm
- Elevation
- 3,842m
- Best Month
- January
- Powder Probability
- 51%
Snowfall data sourced from ERA5 reanalysis via Open-Meteo Historical Weather API (2015-2025).
Check Chamonix snow forecast for your dates
Based on 10 years of historical snowfall data
About Chamonix
Chamonix-Mont-Blanc, host of the first Winter Olympics in 1924, sits beneath the highest peak in the Alps at 4,808m. The resort's extreme altitude (skiing up to 3,842m on the Aiguille du Midi) produces exceptionally dry, cold powder and some of the most challenging off-piste terrain in the world. This page uses 10 years of historical snowfall data to help you identify the best weeks for fresh snow.
Snow & Weather Conditions
We use 10 years of historical data to help you plan — not a live snow report.
The French Alps receive substantial snowfall from Atlantic and Mediterranean storm systems. High-altitude resorts benefit from reliable natural snow, while purpose-built ski stations ensure slope-side convenience. At this extreme altitude, temperatures stay well below freezing for much of the season, preserving snow quality and enabling a long winter with deep, reliable snowpack. The high-alpine climate means precipitation often falls as dry, light powder even during milder weather events. Cumulative seasonal totals routinely top 8-12 metres, packing down into a base layer 3-4 metres deep by mid-winter.
Best Time to Ski
The best time to ski at Chamonix is December and January, with 90.5cm average snowfall and 51% powder probability. Based on 10 years of historical snowfall data from PowderDays. The French Alps season runs from early December to late April. January and February provide the most reliable snowfall and coldest temperatures. Browse PowderDays' decade-spanning snow statistics to pinpoint the weeks with the heaviest accumulations.
Powder Probability by Month
Chance of 15cm+ fresh snow in any given week (10 years of data):
- Nov37%
- Dec51%
- Jan48%
- Feb48%
- Mar35%
- Apr27%
10-Year Snow History
| Month | Avg Snowfall (cm) | Record High | Record Low | Powder Probability |
|---|---|---|---|---|
| Nov | 58.5 | 119.9 | 3.0 | 37% |
| Dec | 90.5 | 182.6 | 2.9 | 51% |
| Jan | 103.2 | 204.2 | 41.9 | 48% |
| Feb | 70.1 | 158.6 | 5.8 | 48% |
| Mar | 76.1 | 118.8 | 12.7 | 35% |
| Apr | 44.0 | 72.4 | 0.0 | 27% |
What Makes It Special
France hosts some of the world's largest interconnected ski areas (Les 3 Vallées, Paradiski, Portes du Soleil), offering hundreds of kilometres of marked pistes and extensive off-piste options. French ski culture is synonymous with gastronomy — expect Michelin-quality mountain restaurants, fine wines, raclette, and a relaxed, social approach to après-ski.
Chamonix-Mont-Blanc hosted the first Winter Olympic Games in 1924, establishing the French Alps as the birthplace of competitive alpine skiing. Les 3 Vallees (Courchevel, Meribel, Val Thorens) is the largest linked ski area in the world, with over 600km of interconnected pistes.
Data Sources & Methodology
All snowfall statistics for Chamonix are based on 10 years of historical data (2015-2025) from the Open-Meteo Historical Weather API, which provides ERA5 reanalysis data from the European Centre for Medium-Range Weather Forecasts (ECMWF). Daily snowfall totals are queried at Chamonix's coordinates (45.92, 6.87) and 3,842m elevation, then aggregated into monthly averages, record highs/lows, and powder probability scores. Powder probability represents the chance of receiving 15cm or more of fresh snow in any given week during that month.