It's so cold outside it's unbelievable - London - Winter 2021

It's so cold outside it's unbelievable.  I'm in the UK.  I just finished work and was on my way home and stopped into the newsagents to pay a bill, it's so cold.  You don't realize how cold it is, until you step inside, and you're out of the danger zone.  I will have to turn on the central heating when I get home, and try to warm up.  I'll be heading home soon.  It's definitely too cold.  It can't get any colder than this.  How cold will it be next year?