We’re winters do suck. Snowy winters are my jam though, even with the lack of day light, the snow and quiet make up for it.

Hot humid summers, and especially mosquitoes, can fuck right off. The extra daylight is nice though

I see summer as a nice relief from the depressing winter

Yeah, exactly. Winters in LA or LA might be different. But, winters in places with months and months of snow are awful. You can't do much outside because it's too cold. You can't have your windows open to get some fresh air because it's too cold. You can dress properly to do outdoor activities, but it often requires so many layers that it's really uncomfortable. Plus, you can't have any gaps. Your neck, wrists, ankles are often places where the cold can get in, or worse they can get wet and being cold and wet is awful.

In addition, the world is just miserable in winter. There's almost nothing alive outside other than other humans. No grass, many trees lose all their leaves, birds migrate away, everything is shades of grey or brown. Christmas can be fun, and it's no coincidence that it's celebrated almost exactly on the darkest day of the year. That's when we need a lot of pretty lights and cheer. But, Christmas is just the beginning of winter. What follows is months of gloomy grey cold.

And, while there are outdoor winter sports, you need special footwear for all of them because of the snow and ice. You can't even walk across a field or a park without extra effort because of all the snow. Even key winter sports like skating or hockey, if played outside, require that you at a minimum spend a lot of time shovelling all the snow off the ice surface. For a good experience you also have to flood and smooth the ice periodically. So, it's a lot of work.

Having said all that, if I had to choose between -30 and +40, I'd probably choose -30, because at least you can put on appropriate gear for that and spend some time outside doing something fun. It may be dark and it may be grey, but it's possible to dress for the weather. When it's too hot, you really can't spend any time outside, without risking your life, and it certainly isn't possible to do anything active. But if the choice is between -30 and +30, give me the +30 any day.

Counterpoint: I lived in Sweden and I miss that winter's gloom. Sure, it's dark before the snow falls but it gives you something to look forward to.