Is 8mm rainfall heavy?

not too big.

From January 1 to May 2, 219, the average precipitation in Guangzhou was 819.9 mm, 74% more than the normal period, ranking third in history. According to reports, the year ranked first in history was 1983, with a precipitation of 145.7 mm.

The year with the least precipitation in history was 1963, and the precipitation was only 78.7mm, less than 1/1th of this year. Li Huaiyu said that the "bad weather" will continue in the next few days, and it is expected that Guangzhou will have a chance to see the sun from May 1th to 12th.

under the influence of El Nino event, the probability of more rainfall in Guangzhou in spring will increase obviously. The results of atmospheric circulation monitoring show that from February 18th to May 4th, the subtropical high in the northwest Pacific Ocean is characterized by continuous strong westward, and the water vapor transport from the ocean is strong, which forms convergence in Guangzhou. Under the control of the above circulation situation, it is beneficial to more rainfall in Guangzhou.