When temperatures hit nearly 22C in parts of England earlier this month, people might have thought that spring had finally sprung.

But with May fast approaching, temperatures have suddenly dropped, forcing some back into their winter coats and others to switch the heating on once again.

So what has caused the mercury to drop to near-freezing in some parts?

According to Sky News weather presenter Jo Wheeler, an area of high pressure to the west of the UK is behind it.

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“High pressure to the west of the UK and Ireland gave hopes for a few days of settled weather, even though it was forecast to be a ‘cloudy high’,” she says.

“And that is pretty much what we have seen, although the positioning of the high brought cold northerly winds – and eastern counties can vouch for this.

“The high was also weak enough to allow frontal systems (a collision of cold and warm air) to move through it, so we didn’t see entirely dry weather either.

“And, winds were strong enough to give a significant wind chill along the North Sea coasts, which was pretty bitter.”

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That, she says, has resulted in temperatures dropping a few degrees below the April average, though, according to Ms Wheeler “not by much”.

So when will temperatures rise again?

“We’re just a few days from May now, and a change is on the way,” she adds.

“Low pressure, spreading from the south at the weekend, will bring milder conditions but also some rain and fresher winds.”

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However, the next few days could still be relatively cold, particularly overnight on Friday and potentially Saturday, when temperatures in parts of northern and eastern England could drop to near or even below freezing, according to the Met Office.

And while they say temperatures are likely to “trend upwards” from Sunday, rain and cloudier weather is set to dominate next week, particularly in the south.

According to the Met Office’s forecast for next week, there will be drier weather in northern parts of the UK and a chance of rain or even thundery showers for a time in the east.

“Temperatures [are] likely to trend upwards, with the chance of a warm to very warm spell in some southern and eastern parts, before conditions probably turn drier, cooler and more settled from the west towards the end of the period,” they say.

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