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A CNN Business article says that after the 2012 drought lifted corn prices, dry extremes have eased, and excess rain is now the main threat to corn farmers. The piece frames climate change as a growing cost to US corn production.
Persistent wet weather in the US Corn Belt can delay planting and cut yields, which supports corn prices, but this piece is general commentary without a new supply event.
cnn.comShannon Gupta2017年4月20日在过去 1,465 次看涨的天气事件之后，玉米 在 5 个交易日内中位数变动 +0.2%（54% 上涨；中间一半区间为 -1.4% 至 +1.9%），20 个交易日内为 +0.9%。
各商品基准价相对事件前最后收盘价的变动。历史数据汇总同类过往事件；仅描述已发生的情况，不代表未来走势。不构成投资建议。
