During this brief spell of warm weather temperatures are roughly 4-7°C (7.2-12.6°F) above the March average.
However, this isn’t uncommon for the time of year.
March is a transition season – from winter to spring – during which we often see big temperature swings depending on the direction of the wind.
Although not unusual, this type of warmer spell in spring is made more likely due to climate change.
Scientists from Climate Central, external suggest this week’s temperatures have been made at least one-to-three times more likely by climate change across a lot of the UK, and for some regions at least four-to-five times more likely.
The highest-ever March temperature of 25.6C (78.1F) was recorded at Mepal, Cambridgeshire, in 1968.