May.
A dry May is followed by a wet June. A normal wet and cool May brings a wet June. An abnormal warm May brings a wet June.
Dry May brings nothing.
Many thunder-storms in May,
And the farmer sings hey! hey!
Rain in the beginning of May is said to be injurious to wine.
Cool and evening dew in May
Brings wine and much hay.
Hoar frost on the 1st of May indicates a good harvest.
The later the black thorn in bloom after May 1, the better the rye and hay harvest.