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1991年12月25日以前,宿松县长期干旱,气温也比常年同期高。12月25日出现冻雨天气,气温骤然下降;27日冻雨转雪;28日21时30分至29日9时15分-7℃以下低温持续12小时;29日3时至8时30分-9℃以下低温持续5小时,极端最低温达-11.3℃。
Before December 25, 1991, the long-term droughts in Susong County also brought about a higher temperature than the same period of previous years. Freezing rain on December 25, a sudden drop in temperature; freezing rain on the 27th to the snow; at 21:30 on the 28th to 29 days at 9:15 under the temperature of -7 ℃ or below for 12 hours; at 29:00 on the 29th to 8:30 - Low temperature below 9 ℃ for 5 hours, the extreme minimum temperature of -11.3 ℃.