Originally Posted by
Spot:
“If it's 3 degrees you can feel as warm as you wish by dressing appropriately. If you overdo it and get too warm you can take a layer of clothing off. A relatively simple process.
If it's 30 degrees you can be naked and still feel too hot, and in any case being naked isn't always practicable.
And nothing beats being out in the chilly winter air, then coming indoors and warming up, particularly in front of a nice fire. In summer you come in after being too hot outside, and you're still too hot inside. 
i”
True, but it isn't always that easy... Try taking a heavy coat off when you're outside and have no rucksack to put it in - you have to carry it round all day..
Also remember that not everyone likes to wrap up warm in big heavy jackets, hats, gloves, scarfs etc. I'm sure a lot of people prefer wearing summer clothes - and often even in Summer it's not warm enough to wear them most the time here.
When it's that hot outside I usually stay in as much as possible as my house stays relatively cool even on the hottest days - it got up to about 30 here on the hottest day of the year in July this year and the last - while the house only reached 24/25 degrees. It didn't actually feel that bad outside on the hottest day this year because the humidity wasn't too high and there was a bit of a breeze - that always helps. It's the hot, humid nights that are always the worst bit when it comes to hot weather.
It's the humidity and mugginess that usually comes with hot weather that I hate, rather the actual temperature or the sunshine.
I used to be like you - always loving snow and winter and the short cold days - and then in early Spring dreading the thought of warmer weather and the temperatures getting back into double figures again!
Anyway, I tend to better appreciate nice Sunny weather these days - especially as we don't get the hot weather very often - at least up here anyway. It was 14/15 degrees and sunny this afternoon but I would have preferred the sun to be a bit stronger.
Also remember that we get many more days of cold weather with below 2-digit temperatures than warm sunny days.
My sweet spot for sunshine in Summer is about 15-22 degrees, with low humidity.
In Spring and Autumn it's about 13-16 degrees as I'm used to cooler weather then.
If I'm out walking a while though I prefer it a bit cooler, about 12-16 degrees as I easily get hot and sweaty.
That said, I do enjoy a crisp snow walk in Winter, I usually get to do about one a year when the snow actually stays on the ground long enough before it melts away. The rest of the Winter though is usually cold, windy, rainy and miserable - not very nice to be out in.