I'm just outside London, been here 20 years that I remember accurately. What I will say is, that the
weather particularly over the past decade has been weird.. but this is not evidence of anything given the timeframe is so small. From older people I have spoken to, they tend to say the same thing.. it hasn't gotten hotter, or colder, our weather has always been a little dash of Artic, a dash of tornado alley, a dash of mediterrean, and a big dollop of dingy grey shite.
The real change has been the cloud cover, or rather the increase in this persistently hazy amorphous 'cloud'.
The only real anomaly was 2020, when it was wall to wall sunshine from April to September, with clear skies. That never happens in the UK:
Met Office - Spring 2020
Now, what is bizarre.. is that the simple explanation would be the lack of air travel due to covid. We saw the same thing post 9/11 in the USA. But yet, the media has made no big deal out of it. In fact most people I speak to have no idea 2020 was
that Sunny (though they remember it being good), because the media really didn't play it up. You would think they would play it up, because if aeroplanes affect the weather that much, it feeds the green agenda nicely.