The UK is not the US.  Climate change, along with geography and topography, impacts weather patterns and the inputs to the UK's weather patterns are different from ours.  For example, in the San Francisco Bay area 7 "micro-climates" have been identified due to geography, topography and proximity to the ocean.  Climate4you is a known climate change denial site and I would not rely on them for information. I recommend spending time at realclimate.org.  You will find peer reviewed papers being discussed along with links to the publicly available datasets and software products used to evaluate the data.