Chamonix reported 20cm of snow right down to 1200m (just above resort level) over the weekend of October 8th/9th. This was part of a widespread snowfall across the Alps bringing up to 80cm of new snow to some already-open glacier ski areas.
As usual, the slopes of the Grands Montets will be the first to open in the Chamonix Valley (www.compagniedumontblanc.fr). The official opening date is the first weekend in December, but the area will open for the last two weekends of November if there is sufficient snow.
Ah, think about getting those skis dusted off 🙂