Naer Cast a Clowt till Mae is owt

This is a well known saying which everyone takes to be don't shed the winter clothing till the month of May is completely out, because basically after May is out traditionally all the bad weather has gone (except for the rare occasion when it has been known to snow).

However the May blossom (Hawthorn Blossom) is starting to sprout therefore the May is out so if you feel disposed go on shed your winter clothing and bring out the summer wardrobe.