China's agricultural weather disaster summer rainfall
frequency online map was derived from the 《National
Agricultural Atlas of the People's Republic of China》.
Comparing precipitation with the same period of the year, one of the following conditions is a rainy
season, which is expressed by frequency: 1. more than three times in the first ten days; 2. more than two
times in the second ten consecutive days; 3. more than one and a half times in the third ten consecutive days.