I used to hike or cycle after work in summer. Now I do it less but not because of the heat. In the evening you can still do those things. In winter it get dark to fast.

Speaking as sometime from Central Europe, rain in winter is very much accurate. Typical Christmas weather is light rain at two degrees above freezing. When it does go below freezing in winter it's usually relatively damp air with no precipitation so there's no fun snow but a cold that becomes painful within seconds if you don't have much body fat.

Even a full week of 43 °C wasn't quite enough to make me like summer less than winter.

Southern Spain.