And Christmas is the point at which this all comes together in a big way for the residents of the UK, something that they can not only talk about but also bet on – whether or not it will be a white Christmas. It is down to the Met Office to confirm if we have a white Christmas – and the official definition may surprise you;
For many people, a White Christmas means a complete covering of snow falling between midnight and midday on 25 December.
However, the definition used most widely, notably by those placing and taking bets, is for a single snowflake (perhaps among a mixed shower of rain and snow) to be observed falling in the 24 hours of 25 December at a specified location.
White Christmases were more frequent in the 18th and 19th centuries, even more so before the change of calendar in 1752 which effectively brought Christmas day back by 12 days. Climate change has also brought higher average temperatures over land and sea and this generally reduces the chances of a white Christmas. However, the natural variability of the weather will not stop cold, snowy winters happening in the future.
The graphic to the right from the Met Office indicates the amount of snow over the last few years on Christmas day – and it will not surprise anyone that it has increased in recent years – the question has to be why – but that’s for another day…..