I've lived in both Seoul and Toronto long enough to get a feeling of the weather.

Seoul's winters are very dry and enough snowfall for any activity is rare. I miss Canadian winters sometimes. They are a lot more fun.

In Korea, most of the rain comes July and August. This year we had one 24 hour period of 150mm in July and another of 300mm in August (A 120 year record). The latter overwhelmed storm drainage and flooded low-lying parts of the city. I wasn't near any of the areas that got flooded, except the rivers and streams where that is normal.

Southern Ontario is interesting because of the lake effect. The great lakes have a unique impact on the weather.