[Stuart]

Hasn't traditional thinking been, especially on the right of politics, that winter elections are A Bad Idea because the traditional voter base is less likely to want to brave the bad weather and leave the house to vote?

People still go to work in Winter. They vote on the way to/from work. They are already out of the house.

The last election was in December. That seemed to work out well for the person who selected that date.

The turnout in June 2017 was 68.8%. In December 2019 it was 67.3%. Barely noticeable difference.