Helsinki

Helsinki has a humid continental climate, similar to that on the coast of Hokkaido or Nova Scotia (one of Canada’s thirteen provinces).

An excerpt from the article 31 facts about Helsinki

Winters in Helsinki are much warmer than in northern Finland (the moderating influence of the Baltic Sea and the North Atlantic Current), and the snow season is much shorter.

The highest temperature ever recorded in the city was 33.2 degrees Celsius on 28th July 2019, and the lowest was -34.3 degrees Celsius on 10th January 1987.