入春(chūn )后(hòu ),随着暖(nuǎn )湿(shī )气流(liú )开(kāi )始活(huó )跃,其与冷空气“狭(xiá )路(lù )相逢”,就酝酿出(chū )一场(chǎng )又一场(chǎng )的春(chūn )雨。在浙江,3月当地(dì )雨水(shuǐ )较常年同(tóng )期偏(piān )少(shǎo )六成(chéng )左(zuǒ )右,其中丽水庆元(yuán )、丽水青田、温(wēn )州(zhōu )文成等地的日照(zhào )时(shí )数不足1小时,为有历史记(jì )录(lù )以来的同期(qī )第一少。
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