The last Sunday in the month indicates the weather for the next month.
Last 7 Days
A fog from the hillsBrings corn to the mills.
It is sure to be a dry Moon if it lies on its back, so that you can hang your hat on its horns. - Welsh saying
In the old of the Moon, a cloudy morning bodes a fair afternoon.
Look for rain when wood lice run about in great numbers.
Of pimpernel, whose brilliant flower Closes against the approaching shower, Warning the swain to sheltering bower From humid air secure. -C.L. Prince
The gentian (Gentiana pneumonanthe) closes up both flowers and leaves before rain.
When the mulberry has shown green leaf, there will be no more frost. [Gloucestershire]