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2016年房山区发生了“7·20”特大暴雨,强降雨历时50 h,全区平均降雨量258.2 mm;2012年“7·21”特大暴雨历时19 h,全区平均降雨量为281 mm。从降雨量上来看,“7·20”降雨量仅次于“7·21”降雨量,但从灾害损失来看,“7·21”造成直接经济损失88亿元,“7·20”造成直接经济损失7.8亿元,且未造成人员伤亡,这得益于近年来不断加强的防洪安全体系建设。
The “7 · 20” heavy rain occurred in Fangshan District in 2016. The heavy rainfall lasted for 50 hours and the average rainfall in the entire district was 258.2 mm. In 2012, the “7 · 21” heavy rain lasted 19 hours and the average rainfall in the entire area 281 mm. From the point of view of rainfall, the rainfall of “July 20” is second only to the rainfall of “July 21”, but from the point of view of disaster losses, “7 · 21” caused direct economic loss of 8.8 billion yuan, “7.20 ” caused a direct economic loss of 780 million yuan, and caused no casualties, thanks to the constantly strengthening flood control safety system in recent years.