Best time to ski Mount St. Louis Moonstone

For the best snow, ski Mount St. Louis Moonstone in December, January, and February. Those months bring 66% of a typical season's snowfall at the summit, based on 10 seasons of modeled weather data (2015–2025).

Mount St. Louis Moonstone snowfall by month

Share of a typical season's summit snowfall in each month.

Jul

Aug

Sep

Oct

13%

Nov

23%

Dec

22%

Jan

21%

Feb

11%

Mar

Apr

May

Jun

Source: Open-Meteo historical weather (ERA5-based reanalysis), July 2015 to June 2025, at 1,253 ft. Weather models undercount total mountain snowfall, so this shows the seasonal pattern, not inch totals. For season totals, see Mount St. Louis Moonstone's website.

How to time your trip

Deepest snow: December, January, and February get the most snowfall, which usually means the best coverage and the most powder days.
Main season: months that bring at least 5% of the season's snow are Nov, Dec, Jan, Feb, Mar, Apr. Actual opening and closing dates are set by the resort.
Book on the forecast: history tells you which months are reliable; the 7-day forecast tells you which week. Snow Way ranks every resort on it daily.

Mount St. Louis Moonstone season FAQ

What is the best time to ski Mount St. Louis Moonstone?

What is the snowiest month at Mount St. Louis Moonstone?

December is typically the snowiest month at Mount St. Louis Moonstone, with about 23% of the season's snow.

Does Mount St. Louis Moonstone have good snow in December?

December brings about 23% of Mount St. Louis Moonstone's typical seasonal snowfall, making it one of the snowiest months. Check the live forecast before booking.

Is Mount St. Louis Moonstone getting snow right now?

As of Thursday, November 5, 2026, Mount St. Louis Moonstone has no new snow in the forecast for the next 7 days. Right now at mid-mountain it's 50°F, partly cloudy, with 7 mph wind.

Mount St. Louis Moonstone snow forecast · Ski resorts in Ontario