Summer tyres all year round 175/65/r15?

[Yaris175]

I live in England and have a 2012 Yaris running on Dunlop sp sport tyres which I believe are summer tyres. It's now time to replace all 4 and it's my first change. I was going to get the same tyre until I realised that they are summer tyres and that made me think twice. I've owned car 1.5 years so have driven through winter without any issues. It doesn't snow here much maybe once every 3 years but ever since owning a car I have never owned winter tyres in 20 years, I don't think they're necessary in this country. I only do about 5000 miles a year mostly city driving. Should I be considering all weather tyres or just stick to summer? Any recommendations?