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１９９７－１９９８年越冬阶段，我市出现了罕见的持续高温多雨。据气象局提供的资料：１９９７年１２月２０日至１９９８年２月２０日，积温比常年多１３６℃，日平均气温比常年高２℃左右，降雨量比常年多１０８．１ｍｍ，暖冬加多雨，使越冬期小麦的主茎叶龄长了２．４叶，
During the overwintering period of 1997-1998, the city experienced a rare continuous high temperature and rainy weather. According to the information provided by the Bureau of Meteorology: From December 20, 1997 to February 20, 1998, the accumulated temperature was 136 ℃ higher than that of the normal years. The daily average temperature was about 2 ℃ higher than that of normal years. The rainfall was 108.1mm more than in normal years. , So that the main stems and leaves of wheat over the winter period 2.4 leaf length,