When will the plum blossoms bloom in Zhangjiagang City?

In 2020, the plum blossom season in Zhangjiagang City started on June 9, 7 days earlier than normal. The plum blossom season started on July 21, 12 days later than normal. The plum season lasted 42 days, 19 days longer than normal. Mei Chang ranked third in history since 1966, the same as 1999 and 1980.

Features of the Meiyu in 2020

1. Heavy rainfall, typical of the Meiyu

This year, the amount of Meiyu at our city’s station was 649.7 millimeters, which is 2.63 times the normal amount of Meiyu. Ranked third in history since 1966, second only to 1991 and 2015. The maximum automatic station is 864.5 mm and appears at Miaoqiao Primary School Station in Tangqiao Town.

2. Heavy rains, accompanied by local strong winds

There were 5 regional heavy rains during the Meiyu period. During this period, the maximum single-day accumulated rainfall at the automatic station was 110.0 mm, which occurred at Jinfeng Herb Garden Station on June 15; there were two thunderstorms and strong winds on June 13 and July 19, of which 8 generally occurred on June 13. Level -9, local level 10 winds (25.8 meters/second at Jinfeng Herb Garden Station), level 8 and local level 9 winds generally occurred on July 19.

Extended information

During the Meiyu period, the Meiyu front system and the main rain belts obviously move out of the middle and lower reaches of the Yangtze River. The number of rainy days in this area within 5 days is less than 2 days, and the highest among all stations in the region When the temperature rises significantly above 30°C, and the southerly wind speed on the ground also increases significantly, it is designated as plum blossoms.

The current Chinese almanac adopts the statement from the "Shenxu Jing" that the plum blossoms appear on the first last day after the minor summer heat, that is, between July 8th and 19th. In some years, the plum blossom period will be delayed. For example, in 1954, the plum blossom period did not appear until August 2, and the plum rain period lasted for 63 days.

After the rainy season ends, most areas enter the midsummer high temperature season.