What signs do we find in Nature which show that the monsoons are about to end?

Nature shows many signs that signify the end of the monsoons. The growth of plants of the monsoon season has reached its fullest. Seeds of cobra lily turn red and the fern starts to take yellow colour. Many flowers bloom towards the end of monsoon season like white butterfly orchids, mauve lady’s slipper and wild dahlias of various colours. Snakes and rodents sneak into roofs, attics and godowns of the houses because of continuous rains.