<p>受冷空气和晴空辐射的共同影响，昨天（18日）和今天连续两天早晨广东清远北部出现4℃以下低温和霜（冰）冻现象，最低气温出现在19日晨连山-2℃，昼夜温差达15到20℃。山区低温和昼夜温差大有利于植物体内的物质转化和糖分增加，所以像连州菜心等山区蔬菜会更为清甜。（文/陆德辉 图/连州、连山、连南和阳山气象局测报员）@清远天气</p><div style="text-align:center;"><img src="https://imagepphcloud.thepaper.cn/pph/image/109/540/284.jpg" height="330" width="440" alt=""></div><p></p><p></p><div style="text-align:center;"><img src="https://imagepphcloud.thepaper.cn/pph/image/109/540/285.jpg" height="330" width="440" alt=""></div><p></p><p></p><div style="text-align:center;"><img src="https://imagepphcloud.thepaper.cn/pph/image/109/540/287.jpg" height="477" width="440" alt=""></div><p></p><p></p><div style="text-align:center;"><img src="https://imagepphcloud.thepaper.cn/pph/image/109/540/289.jpg" height="256" width="440" alt=""></div><p></p><p></p><div style="text-align:center;"><img src="https://imagepphcloud.thepaper.cn/pph/image/109/540/290.jpg" height="255" width="440" alt=""></div><p></p><p></p><div style="text-align:center;"><img src="https://imagepphcloud.thepaper.cn/pph/image/109/540/291.jpg" height="330" width="440" alt=""></div><p></p><p></p><div style="text-align:center;"><img src="https://imagepphcloud.thepaper.cn/pph/image/109/540/292.jpg" height="330" width="440" alt=""></div><p></p><p></p><div style="text-align:center;"><img src="https://imagepphcloud.thepaper.cn/pph/image/109/540/293.jpg" height="256" width="440" alt=""></div><p></p><p></p><div style="text-align:center;"><img src="https://imagepphcloud.thepaper.cn/pph/image/109/540/294.jpg" height="255" width="440" alt=""></div><p></p><p></p>

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广东清远北部连续两天出现霜（冰）冻

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受冷空气和晴空辐射的共同影响，昨天（18日）和今天连续两天早晨广东清远北部出现4℃以下低温和霜（冰）冻现象，最低气温出现在19日晨连山-2℃，昼夜温差达15到2

广东清远北部连续两天出现霜（冰）冻

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