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我州1975年12月18—20日,23—25日,30—1月1日,先后出现三次较强的降温过程,持续时间长达半个月,尤以12月31日—1月1日这次降温过程最为强烈。我州各地分别于12月23日、31日出现仅次于73—74年冬的历史最低温度。31日景洪3.6℃(73—74年冬2.7℃),勐腊1.7℃(73—74年冬0.5℃),勐海-3.3℃(73—74年冬-5.8℃)勐遮-1.8℃(73—74年冬-5.8℃),23日勐龙1.3℃(73—74年冬0.5℃)。对我州以橡胶为主的热带经济作物造成严重损失,尤其开割大树损失比73—74年冬这次低温还
December 18-19, 1975, December 23-25, January 30, January 1, there have been three strong cooling process, the duration of up to half a month, especially in December 31-January 1 The cooling process is the most intense on this day. On December 23rd and 31st, respectively, the lowest temperature in the whole country was second only to the winter of 73-74 years. 31 days Jinghong 3. 6 ℃ (73-74 winter 2.7 ℃), Mengla 1.7 ℃ (73-74 winter 0.5 ℃), Menghai -3.3 ℃ (73-74 winter -5.8 ℃) Meng cover -1.8 ℃ (73 - 74 years of winter - 5.8 ℃), on the 23th Menglong 1.3 ℃ (73-74 winter 0.5 ℃). Causing serious damage to the rubber-based tropical cash crops in our state. In particular, the loss of large trees is more than 73-74 in winter.