This is my understanding of how our climate works now.
We are actually in the middle of a mini-ice age. This range of weather incidents will not continue permantly. Our UK. weather is affected by the Northern Polar Jet stream; of course it can be cold. There is also the Solar 12 year old cycle which is late this year. You can see the s
Solar Cycle; some aspects of which are the lack of sun-spot this year. The jet stream because it is at the end of it's cycle is very slow and meandering. The tail waggles a bit over the U.K.
Looking at our climate needs a heeds a historical viewpoint.
In medieval times delicious wine was home grown. In the eighteenth century the River Thames was frozen. They held a 'barbecue' there.